What does |(-18)+(-2)/(7)+(-2) equal?

Answer:

Write the mixed number as a decimal. 83/5

16.6

Answer: 25t+45m

Step-by-step explanation:

Really simple because if they traveled 25mi/h for t hours, that makes it 25t miles. They traveled 45mi/h for m hours so it's 45m. If you add them together, 25t+45m.

If this helped, brainliest please.

Answer:

The amount of deposit required is R37,999  for both

The percentage of purchase price for the required deposit is 20%

Therefore, deposit required=20%*R189,995

                                              =R37,999

The balance owed is the outstanding balance after payment of deposit plus the interest, bearing in mind that interest is computed using the simple interest approach

I=PRT

balance after payment of deposit=R189,995-R37,999

                                                       =R151,996

R=13.5% per year

T=48 months and 54 months

Interest on 48 month option=151,996*13.5%*48/12

                                              = R82,077.84

Interest on 54 month option=151,996*13.5%*54/12

                                              = R 92,337.57

The total payment without the initial deposit is the outstanding balance after payment of deposit plus the interest

Total payment for 48 month option=R151,996+R 92,337.57

                                                          =R  244,333.57

Total payment for 54 month option=R151,996+R82,077.84

                                                          =R 234,073.84

                                              Hope it helped!

{(5, 2), (4, 2), (3, 2), (2, 2), (1, 2)}, {(−8, −3), (−6, −5), (−4, −2), (−2, −7), (−1, −4)} and {(−6, 4), (−3, −1), (0, 5), (1, −1), (2, 3)} are the sets of ordered pairs considered as a function.

{(−4, −2), (−1, −1), (3, 2), (3, 5), (7, 10)} is not a function.

In mathematics, ordered pair is a pair of numbers that are written in a specific order. They are generally written in (x, y) form. For example (3, 5) is an ordered pair.

The function can also be represented by a set of ordered pairs. A function Is a set of ordered pairs in which no two different ordered pairs have the same value of x coordinate.

Option (a) : {(5, 2),(4, 2),(3, 2),(2, 2),(1, 2)}

No two ordered pairs have the same value of the x coordinate.

So it is a function.

Option (b) : {(-4, -2),(-1, -1),(3, 2),(3, 5),(7, 10)}

Two ordered pairs have the same value of x coordinate (3, 2) and (3, 5).

So, it can not be considered a function.

Option (c) : {(-8, -3),(-6, -5),(-4, -2),(-2, -7),(-1, -4)}

No two ordered pairs have the same value of the x coordinate.

So it is a function.

Option (d) : {(-6, 4),(-3, -1),(0, 5),(1, -1),(2, 3)}

No two ordered pairs have the same value of the x coordinate.

So it is a function.

Therefore, Options (a), (c), and (d) are the functions.

Option (b) is not a function.

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Answer:

The last one I did the math

Answer:

D

Step-by-step explanation:

bc it is just put it

Answer:

10·b = 60

Step-by-step explanation:

The given system of equation is presented as follows;

5·a + 5·b = 25...(1)

-5·a + 5·b = 35...(2)

Given that the coefficient of a in equation (1) is equal in magnitude but opposite in sign to the coefficient of 'a' in equation (2), to eliminate the variable 'a' when using the elimination method, we add both equations as follows;

5·a + 5·b + (-5·a + 5·b) = 25 + 35 = 60

5·a - 5·a + 5·b + 5·b = 60

5·a - 5·a = 0

5·b + 5·b = 10·b

∴ 5·a - 5·a + 5·b + 5·b = 60 = 0 + 10·b = 10·b

∴ 10·b = 60

Answer:

i think 90

Step-by-step explanation:

No of boys = 40%

let total no. of children be as "x"

now, 40% of x= 2x/5.

and since boys differ girls by 18.

no. of girl would be x-2x/5=3x/5.

now No. of boys= 2x/5

and no. of girls= 3x/5

no. of total children would then be as = 3x/5 - 2x/5= 18

The value of "X" would then be as = 90

To find no. of boys we would do 2x/5 X 90= 36

and no. of girls = 3x/5 X 90= 54.

to prove my answer 54-36= 18

Hope it helps C":

Suppose there are X children at the childcare.

Thus :

boys + girls = X

__________________________

40% of the children are boys .

Thus :

There are 40/100 × X boys .

So : boys = 0.4X (( Ω ))

__________________________

There are 18 more girls than boys

Thus :

girls - boys = 18

girls - ( 40/100 X ) = 18

girls - 0.4X = 18

Add sides 0.4X

girls - 0.4X + 0.4X = 18 + 0.4X

girls = 18 + 0.4X (( μ ))

__________________________

Now It's time to put (( μ ))

and (( Ω )) in the above equation.

boys + girls = X

0.4X + 18 + 0.4X = X

0.8X + 18 = X

Subtract sides 0.8X

- 0.8X + 0.8X + 18 = 1X - 0.8X

18 = 0.2X

0.2X = 18

Divided sides by 0.2 (( 2/10 ))

2/10 ÷ 2/10 × X = 18 ÷ 2/10

X = 18 × 10/2

X = 18 × 5

X = 90

Thus there are 90 children at the childcare.

Done.....♥️♥️♥️♥️♥️

Answer:

125g for $0.79

Step-by-step explanation:

500g of yogurt for $3.49 equals 0.00698 per gram.

3.49/500 = 0.00698

125g of yogurt for $0.79 equals 0.00632 per gram.

0.79/125 = 0.00632

hope this helps

Answer:

  ★ = 3

  ✚ = 4

  ■ = 4

  ◆ = 5

Step-by-step explanation:

If we use direct correspondence in the second equation, then we have ...

  ◆ = 5

  ★ = 3

The values of ★ and ✚ in the first equation must total 7. This means ...

  ✚ = 7 -3 = 4

Again, using direct correspondence in the third equation, we have ...

  ■ = 4

The recursive formula for the predicted number of speeding tickets issued each year in Middletown, starting from 2012 with an initial count of 190 tickets and growing by 10% each year, can be written as follows: N(year) = 1.1 * N(year - 1).

The recursive formula for the predicted number of speeding tickets each year is based on the assumption of exponential growth, where the number of tickets issued increases by 10% each year.

Let's denote N(year) as the predicted number of speeding tickets during a particular year. According to the given information, in the year 2012, Middletown issued 190 speeding tickets, which serves as our initial count or base case.

To calculate the number of tickets in subsequent years, we multiply the previous year's count by 1.1, representing a 10% increase. Therefore, the recursive formula for the predicted number of speeding tickets is:

N(year) = 1.1 * N(year - 1).

Using this formula, we can determine the predicted number of speeding tickets for any given year by recursively applying the growth rate of 10% to the previous year's count.

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Answer:

B

Step-by-step explanation:

The range of a data set is the y-coordinates of the ordered pairs.

So, we have the ordered pairs:

{(-2,1), (0,0), (3,-1), (-1,7), (5,7)}

So, the range will be (the bolded numbers):

{(-2,1), (0,0), (3,-1), (-1,7), (5,7)}

Thus, our answer is:

{-1, 0, 1, 7}

Note that the range should be in ascending order.

Also note that even though 7 appears twice, 7 is 7, so we only put one 7.

The answer is B.

Answer:

B

Step-by-step explanation:

(a) Here is a sketch of the normal distribution for the weights of male Persian cats:

```

                   |

                   |

                   |

                   |

                   |

                   |

                   |     . . . . . . . . . . . . . . . . . . . . . .

                   |   .                                               .

                   | .                                                 .

                   |.                                                   .

--------------------|----------------------------------------------------

                μ-3σ           μ             μ+3σ

```

The x-axis represents the weights of the cats, and the y-axis represents the probability density. The curve is symmetric around the mean (μ) and has a standard deviation (σ) of 0.5 kg.

(b) To find the proportion of male Persian cats weighing between 5.5 kg and 6.5 kg, we need to calculate the area under the normal distribution curve between these two weights.

Using statistical software or tables for the normal distribution, we can find the corresponding z-scores for the weights 5.5 kg and 6.5 kg. Let's assume these z-scores are z1 and z2, respectively.

Then, we can find the proportion by subtracting the cumulative probability for z2 from the cumulative probability for z1. This represents the proportion of cats within the weight range.

(c) To determine the expected number of cats in the group that have a weight of less than 5.3 kg, we first need to find the z-score corresponding to this weight. Let's assume this z-score is z3.

Next, we calculate the cumulative probability for z3. This represents the proportion of cats in the population with a weight less than 5.3 kg.

To find the expected number of cats in the group, we multiply this proportion by the total number of cats in the group (80).

(d) To estimate the value of x for the statement "12 of the cats weigh more than x kg," we need to find the z-score corresponding to the cumulative probability of 12 cats in a group of 80.

Using statistical software or tables for the normal distribution, we can find the z-score that corresponds to this cumulative probability.

Then, we can convert the z-score back to the weight scale to estimate the value of x.

(e) To find the probability that exactly one cat out of ten weighs over 6.25 kg, we can use the binomial probability formula:

\(P(X = 1) = (nCk) * p^k * (1-p)^{(n-k)}\)

In this case, n = 10 (number of cats chosen), k = 1 (number of cats weighing over 6.25 kg), and p represents the probability of a cat weighing over 6.25 kg, which can be calculated using the normal distribution and the corresponding z-score.

By substituting these values into the formula, we can calculate the probability.

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Answer:

D

Step-by-step explanation:

Each factor on the right has to be multiplied by the equation on the left and then you add them.

The expression (3x² + 4x - 7) ( x- 2) can be rewritten as 3x³- 2x²- 15x + 14.

To rewrite the expression (3x² + 4x - 7) ( x- 2) using the distributive property, we need to distribute each term in the first polynomial to each term in the alternate polynomial.

(3x² + 4x - 7) ( x- 2)

= 3x²( x- 2) + 4x( x- 2)- 7( x- 2)

Now, distribute each term

= 3x³- 6x²+ 4x²- 8x- 7x + 14

Combine like terms

= 3x³- 2x²- 15x + 14

Thus, using the distributive property, the expression (3x² + 4x - 7) ( x- 2) can be rewritten as 3x³- 2x²- 15x + 14.

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So the maximum number of edges in an undirected graph with 100 vertices is 4950.

In an undirected graph, each edge connects two vertices, and as such, it is counted twice, once for each vertex it connects. Therefore, the total number of edges in the graph is the sum of the degrees of all vertices, divided by 2.

In a complete graph with n vertices, every vertex is connected to every other vertex, except itself, and so the degree of each vertex is n-1 (it is connected to n-1 other vertices). Therefore, the total number of edges in the graph is:

n * (n-1) / 2

Substituting n = 100, we get:

100 * 99 / 2 = 4950

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Answer: D. 80 miles

Step-by-step explanation:

if 1 inch is 20 miles, then 4 inches is 4 x 20 = 80 miles what is real distance between City A and City B

Answer:

D. 80 miles

Step-by-step explanation:

If the map distance between Cities A and B is 4 in, and the map scale is 1 in = 20 mi, then the actual distance between Cities A and B is:

\(\frac{4\text{ in}}{1}\times\frac{20\text{ mi}}{1\text{ in}}=\frac{80\text{ mi}}{1}=80\text{ mi}\)

In other words, every one inch on the map equates to 20 miles in actual distance. Therefore, 4 inches equates to 80 miles.

Answer:

A+B+C = 2(x+y)²

do rest in same manner

Answer:

$595

Step-by-step explanation:

85x7=595

Answer:

I belive the total change is $595

Step-by-step explanation:

My explanation is that you take $85 and times it by 7

Answer:

4 hours

Step-by-step explanation:

As she wants to keep two candles burning so after3 hours only 2 candles will remain and after 4 hours only one but till 4 hours 2 candles would be burning that what she wanted so its 4 hours

If Dora burns candles that burn for 4 and 5 hours, they combine to burn for 9 hours.

Combination and permutation are two alternative strategies for organizing elements of a set into subsets in mathematics. The subset's components can be recorded in any order when combined. The components of the subset are stated in a separate order in a permutation.

Dora has three candles that will burn for 3, 4, and 5 hours, respectively.

The combination of the hours of burning,

3 + 4 = 7 hours

4 + 5 = 9 hours

3 + 5 = 8 hours

So the greatest number is 9

Thus, if Dora burns candles that burn for 4 and 5 hours, they combine to burn for 9 hours.

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Answer:

Vertices: 5

Step-by-step explanation:

There should be 5 vertices. One at the top, 4 at the corners of the square.

Answer:

5

Step-by-step explanation:

One vertex is located at the top of the pyramid. The four vertices are located on each corner of the rectangular base.

Answer:

I think 274

Step-by-step explanation:

The optimal solution to the linear programming problem, where we want to maximize z = 2x + y, subject to the constraints x + y ≤ 3, x - 2y ≤ 2, and x ≤ 2, is obtained when x = 2 and y = 1.

To find the combination of x and y that yields the optimum for the given linear programming problem, we need to solve the system of inequalities and find the maximum value of z.
Start by graphing the feasible region formed by the three inequalities. - The first inequality, x + y ≤ 3, represents a line passing through points (3,0) and (0,3). S

hade the region below this line. - The second inequality, x - 2y ≤ 2, represents a line passing through points (2,0) and (0,1). Shade the region below this line. - The third inequality, x ≤ 2, represents a vertical line passing through point (2,0).

Shade the region to the left of this line. - The feasible region is the overlapping shaded region. Identify the corner points of the feasible region.

These are the points where the boundaries of the shaded regions intersect. - The corner points are (0,0), (0,1), and (2,1). Evaluate the objective function z = 2x + y at each corner point. - For (0,0): z = 2(0) + 0 = 0 - For (0,1): z = 2(0) + 1 = 1 - For (2,1): z = 2(2) + 1 = 5

Compare the values of z obtained at each corner point. - The maximum value of z is 5, which occurs at the point (2,1). The combination of x = 2 and y = 1 will yield the optimum for the given linear programming problem.

The optimum combination of x and y that yields the maximum value for the given linear programming problem can be found by solving the system of inequalities and evaluating the objective function at each corner point of the feasible region.

By graphing the inequalities, we can identify the overlapping shaded region that represents the feasible solutions. The corner points of this region are then evaluated using the objective function z = 2x + y. By comparing the values of z at each corner point, we can determine the maximum value. In this case, the maximum value of z is 5, which occurs at the point (2,1).

Therefore, the combination of x = 2 and y = 1 will yield the optimum solution for the given problem.

The optimal solution to the linear programming problem, where we want to maximize z = 2x + y, subject to the constraints x + y ≤ 3, x - 2y ≤ 2, and x ≤ 2, is obtained when x = 2 and y = 1. At this combination of x and y, the objective function z takes the maximum value of 5.

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Answer:

B.

Step-by-step explanation:

Use the multiplication table of 12 and find that 5x12=60. Answer B is the only one that has that.

A car travel 20kph faster than a truck. the car cover 350 km in two hours less than the time. The speed of the car is 50 km/h. The speed of truck is 70 km/h.

You can determine an object's speed if you know how far it moves in a given amount of time. For instance, an automobile is moving at a pace of 70 miles per hour if it covers 70 miles in an hour (miles per hour).

Given,

A car travel 20kph faster than a truck. the car cover 350 km in two hours less than the time.

Let s represent the truck's speed and (s+20) represent the car's speed.

to determine each vehicle's time

Time = Speed / Distance

truck time = 350/s

Time in an automobile is 350/(s+20)

Truck time - car time = 2 hours

So,

(350/s) - [350/(s+20)] = 2

LCM is s(s+20)

[350(s+20) - 350s]/s(s+20) = 2

Cross multiplying,

350(s+20) - 350s = 2s(s+20)

Simplifying the equation,

350s + 7000 - 350s = 2s² + 40s

Now, we have quadratic equation to simplify,

2s² + 40s - 7000 = 0

Dividing the equation by 2

s² + 20s - 3500 = 0

Factorizing,

s= 50

s= -70 (impossible because of the sign)

Hence the truck's speed is s = 50 km/h.

The speed of the car is s + 20 = 70 km/h.

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I'm assuming your teacher wants you to distribute. If so, then you multiply the outer term 8 by each term inside (3a and 5). After that you add.

8 times 3a = 24a

8 times 5 = 40

So 8(3a+5) becomes 24a+40

We do not combine 24a and 40 as they are not like terms. So we leave 24a+40 as it is.

Answer:

we ended the Bubba pregnant woman he is not in there by the Monon the man that want to be. DMV

Answer:

3x^4

Step-by-step explanation:

Answer:

495x^10 y^5

Step-by-step explanation:

Answer:

5 1/2

Step-by-step explanation:

Answer:

x=4.9

Step-by-step explanation:

x-3/3=5/8

x-3=15/8

x=15/8+3

x=39/8

x=4.9