Can somebody help me with this. Do you add the 15 to the 2y or subtract it.

Answer: 7/27

Step-by-step explanation: add both numbers to get 54, take 14, divide it by 54 and simplify to get 7/27, I hope this is correct and I hope this helps

Answer:

b will be the right answer

I am sure

Answer:

75

Step-by-step explanation:

Answer:

D

Step-by-step explanation: Ive had this question

The height of the cylinders are (r - 0.5)/5 and -5.5 + (r - 0.5)/5  respectively; where r represents the radius of cylinder B

The given parameters are:

Cylinder A

Radius = 6

Height = h - 5.5

Cylinder B

Radius = r

Height = h

The surface area of a cylinder is

S = 2πr(r + h)

So, we have:

Cylinder A

Radius = 6

Height = h - 5.5

S = 2π * 6(6 + h - 5.5)

Cylinder B

Radius = r

Height = h

S = 2πr(r + h)

Substitute S = 2πr(r + h) in S = 2π * 6(6 + h - 5.5)

2πr(r + h) = 2π * 6(6 + h - 5.5)

Divide both sides by 2π

(r + h) = 6(6 + h - 5.5)

This gives

(r + h) = 6(h + 0.5)

Expand

r + h = 6h + 0.5

Evaluate

r = 5h + 0.5

Rewrite as

h = (r - 0.5)/5

So, we have

h -5.5 = -5.5 + (r - 0.5)/5

Hence, the height of the cylinders are (r - 0.5)/5 and -5.5 + (r - 0.5)/5  respectively; where r represents the radius of cylinder B

Read more about surface areas at:

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Answer:

2 miles / (1/2) hour = 4 miles/hour

h = 4m

At (1, 4), the constant of proportionality appears.

Answer:

the rate of change is $50

Step-by-step explanation:

each ticket costs $50 not 100

Answer:

Step-by-step explanation:Situation A: The hang glider descended 33.57 feet and again ascended 14.98. So 33.57 - 14.98 = 18.58. So now the hang glider is at 18.58 feet

Situation B: Initially they gained 7 2/5 yards and then lost 3/5 yards.

7 2/5 yards can be written as 37/5. As they lost 3/5 yards, 37/5 - 3/5 = 34/5. So the remaining yards are 34/5 yards.

Situation C: Hiker walked 3 1/6 miles and then 2 1/2 miles. So the total distance is 3 1/6 + 2 1/2 = 5 4/6 miles.

Situation D: Total amount earned is $23.66 + $15.84 = $39.5.

Answer:

Step-by-step explanation:Situation A: The hang glider descended 33.57 feet and again ascended 14.98. So 33.57 - 14.98 = 18.58. So now the hang glider is at 18.58 feet

Situation B: Initially they gained 7 2/5 yards and then lost 3/5 yards.

7 2/5 yards can be written as 37/5. As they lost 3/5 yards, 37/5 - 3/5 = 34/5. So the remaining yards are 34/5 yards.

Situation C: Hiker walked 3 1/6 miles and then 2 1/2 miles. So the total distance is 3 1/6 + 2 1/2 = 5 4/6 miles.

Situation D: Total amount earned is $23.66 + $15.84 = $39.5.

Step-by-step explanation:

According to Barbara's plot, the number line A, is above sea level, therefore, it's a positive line, in positive range.

On the other hand, the number line B has the same distance but in the opposite direction, is downwards the zero point. So, this means the B line is below sea level, because is in positive range. That's what we can deduct from this, because the characterization Barbara is doing is related to sea level.

Answer:

According to Barbara's plot, the number line A is above sea level, therefore, it's a positive line, in a positive range.

On the other hand, the number line B has the same distance but in the opposite direction, which is downwards the zero point. So, this means the B line is below sea level, because is in positive range. That's what we can deduct from this because the characterization Barbara is doing is related to sea level.

Step-by-step explanation:

a) The predicted heating cost for a month with temperature of 25 ºF is given as follows: $65.70.

b) The predicted heating cost for a month with temperature of 0 ºF is given as follows: $96.20

c) For an increase of one degree Fahrenheit, the predicted decrease in the cost is of $1.22.

The slope-intercept representation of a linear function is given by the equation presented as follows:

y = mx + b

The coefficients of the function and their meaning are described as follows:

The slope and the intercept for the function in this problem are given as follows:

Hence, the predicted cost for a month with temperature of 25ºF is given as follows:

y = -1.22(25) + 96.20 = $65.70.

More can be learned about linear functions at https://brainly.com/question/24808124

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Answer:

3/4

Step-by-step explanation:

Since (p, r) lies on the line y = x + b,

we have,

r = p + b -----eq(1)

Since (2p, 5r) lies on the line y = 2x + b,

we have,

5r = 2(2p) + b -----eq(2)

Sub the value of r from eq(1) in eq(2),

5(p + b) = 4p + b

⇒ 5p + 5b = 4p + b

⇒ 5b - b = 4p - 5p

⇒ 4b = -p

⇒ b = -p/4

sub in eq(1)

r = p + (-p/4)

= p - p/4

= 3p/4

⇒ r = 3p/4

⇒ r/p = 3/4

Answer:

3/4

Step-by-step explanation:

We have two lines:

r = p + b     eq(1)

5r = 4p + b   eq(2)

eq(2) - eq(1)

4r = 3p

dividing by 4p

r/p = 3/4

Explanation:

The data from the stem-and-leaf plot is:

10,

24,25,26,

30,30,32,33,

40,45,46

Add up those values

10+24+25+26+30+30+32+33+40+45+46 = 341

Then divide over n = 11 which is the sample size.

341/11 = 31 is the arithmetic mean.

Answer:

341/11 = 31 is the arithmetic mean.

Step-by-step explanation:

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Answer:

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Step-by-step explanation:

Answer:

sorry i thought i knew the aanswer :(

Step-by-step explanation:

Answer:

\( - 2 \frac{3}{5} \div \frac{3}{5} = - \frac{13}{5} \times \frac{5}{3} = - \frac{13}{3} = - 4 \frac{1}{3} \)

\(2 \frac{1}{4} \div \frac{3}{4} = \frac{9}{4} \times \frac{4}{3} = 3\)

\( - \frac{10}{17} \div ( - \frac{15}{17} ) =\)

\( - \frac{10}{17} \times ( - \frac{17}{15} ) = \frac{2}{3} \)

\( 2.75 \div ( - 2.2) = \)

\( 2 \frac{3}{4} \div ( - 2 \frac{1}{5} ) = \)

\( \frac{11}{4} \div ( - \frac{11}{5} ) = \frac{11}{4} \times ( - \frac{5}{11} ) = - \frac{5}{4} = - 1.25\)

3 ⇒ 2 (1/4) / (3/4)

-1.25 ⇒ 2.75 / (-2.2)

2/3 ⇒ (-10/17) / (-15/17)

-4 1/3 ⇒ -2 (3/5) / (3/5)

Hope my answer helps you✌️

Mark BRAINLIEST

Answer:

35

Step-by-step explanation:

The formula to find the geometric mean (x) of two numbers (a and b) is:

\(x=\sqrt{ab}\)

Let's sub in our numbers, 175 and 7, as a and b:

\(x=\sqrt{(175)(7)}=\sqrt{1225}=35\)

Answer:

It's the 3rd one; 35

Answer:

B

Step-by-step explanation:

Dilation is making an object bigger or smaller by a scale factor. This means that B would be the only logical answer.

Answer:

B 30°

Step-by-step explanation:

come now.

the sum of all angles around one point on one side of a line is 180°.

why ?

because any line with a point can be seen as a diameter of a circle with that point as center.

and every side of the line represents then a half-circle.

and a half-circle stands for 360/2 = 180°.

so,

180 = (2x + 70) + (x - 10) = 2x + 70 + x - 10 = 3x + 60

120 = 3x

x = 40

2x + 70 = 2×40 + 70 = 80 + 70 = 150°

x - 10 = 40 - 10 = 30°

180 = Q + (2x + 70) = Q + 150

30° = Q

Answer:

-x=7y

=2x-3x=7-y

=-x=7y

Answer: you have a 1/5 chance of every tile

Step-by-step explanation: if your trying to pick out B or D you have a 2 out of 5 chance.

The expression (2⁴)⁻¹ is simplified as one over two raised to the fourth power. Then the correct option is B.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

Making anything easier to accomplish or comprehend, as well as making it less difficult, is the definition of simplification.

The expression is given below.

⇒ (2⁴)⁻¹

We know that a⁻ⁿ = 1 / aⁿ, then the value of the expression is given below.

⇒ 1/ (2⁴)

The expression (2⁴)⁻¹ is simplified as one over two raised to the fourth power. Then the correct option is B.

More about the Algebra link is given below.

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Answer:

10v^2

Step-by-step explanation:

(I'm assuming the 2's are all exponents)

3v^2 - 2v^2 + 9v^2  <- think of it as 3 - 2 + 9 = 10, then add the rest back on

10v^2

Answer:

Negative 7/40 or - 7/40

Step-by-step explanation:

Answer: -7/40

Step-by-step explanation:

first multiply the two negatives so it becomes (2-|-1/4+2 x 3/5|) /(-6)

then that becomes (2- | -1/4 + 6/5 | ) /(-6)
the sum of those two fractions become (2- | 19/20|) /(-6)

(2-19/20)/(-6)

2 - 19/20 /-6

21/20 /-6

multiple both by a negative so that become -21/20 /6

multiply the 6 with the recirocal so it becomes 1/6

-21/20 and 1/6 turn into -7/20 and 1/2 by canceling out with the greatest common factor of 3

now multiply both and u get -7/40

Answer:

D

Step-by-step explanation:

The two legs ( shorter sides) have the right angle between them in a right triangle and

5^2 + 9^2   DOES equal 13^2

Answer:

?

Step-by-step explanation:

Answer:

y = x + 12

y + x = 52

x = 20

y = 32

Step-by-step explanation:

Make a system of linear equations using x and y to represent the players on the soccer and field hockey team respectively:

y = x + 12 (this shows how many players are on the hockey team)

y + x = 52 (this shows that there are 52 players total from both teams)

Solve for the variables using either elimination or substitution:

y + x = 52

(x + 12) + x = 52

2x + 12 = 52

2x = 40

x = 20

Then plug x into the first equation:

y = x + 12

y = (20) + 12

y = 20 + 12

y = 32

Answer:

y=20x+12

Step-by-step explanation:

Answer:

(16,4)

Step-by-step explanation: