Which algebraic expression represents the phrase “four times a number”?
4 + c
c - 4
4 divided by c
4c

Answer:

approx 314 m^3

Step-by-step explanation:

volume=pi r^2 h/3 => pi*5^2*12/3 =>3.14*25*4=314

Answer:

approx 314 m^3

Step-by-step explanation:

Answer:

180-(45+90)

Step-by-step explanation:

180-(135)

45

Answer is 45

Answer:

45°

Step-by-step explanation:

→ First solve the values within the brackets

45° + 90° = 135°

→ Resubstitute back

180° - 135°

→ Solve

45°

Answer:

◘ 12 pears

◘ 3 pineapples

◘ 10 kiwis

Step-by-step explanation:

Let \(x\) be the number of pears bought.

Therefore:

• number of pears = \(x\)

• number of pineapples = \(x - 9\)

• number of kiwis = \(x - 2\)

We know that the total cost was $13.50.

This means if she bought \(x\) pears at $0.50 each, \((x - 9)\) pineapples at $1.50 each, and \((x -2)\) kiwis at $0.30 each, the total would be $13.50.

∴  \([x \times 0.50] + [(x-9) \times 1.5] + [(x-2) \times 0.3] = 13.50\)

Expanding and multiplying:

⇒ \(0.5 x + 1.5x - 13.5 + 0.3x - 0.6 = 13.5\)

Collect like terms:

⇒ \(2.3x -14.1 = 13.5\)

Solve for \(x\):

⇒ \(2.3x = 13.5 + 14.1\)

⇒ \(2.3 x = 27.6\)

⇒ \(x = 27.6 \div 2.3\)

⇒ \(x = \bf 12\)

Therefore, she bought:

• 12 pears

•  \(x - 9\) = 12 - 9 = 3 pineapples

• \(x - 2\) = 12 - 2 = 10 kiwis

Marita bought 12 pears, 3 pineapples and 10 kiwis.

Arithmetic operations can also be specified by the subtract, divide, and multiply built-in functions.

Let x the number of pears bought,

y the number of pineapples bought,

z the number of kiwis bought,

Given that, Marita bought 9 more pears than pineapples and 2 fewer kiwis than pears,

y + 9 = x

y = x -9 and

z + 2 = x

z = x - 2

We know that the total cost was $13.50.

This means if she bought  pears at $0.50 each,  pineapples at $1.50 each, and  kiwis at $0.30 each, the total would be $13.50.

∴  0.50x + 1.50y+ 0.30z = 13.50

Substitute the values of y and z in equation,

⇒ 0.50x + 1.50(x -9)+ 0.30(x - 2) = 13.50

Expanding and multiplying terms in equation,

⇒  0.50x + 1.50x -13.50+ 0.30x - 0.60 = 13.50

Rearrange the like terms and apply the arithmetic operation

⇒ 2.3x - 14.1 = 13.50

⇒ 2.3x = 13.50 + 14.1

⇒ 2.3x = 27.6

⇒ x = 27.6/2.3

⇒ x = 12

Therefore, the number of pears bought = 12

So, the number of pineapples bought = 12 - 9 = 3

And the number of kiwis bought = = 12 - 2 = 10

Hence, Marita bought 12 pears, 3 pineapples and 10 kiwis.

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Answyer:y5eye5y5ey

Step-by-step explanation:

Answer:

y5eye5y5ey

Step-by-step explanation:

Answer: 4/5x + 56

Step-by-step explanation:

I’m so sorry If I’m wrong but I tried Im new to this im not so sure if this is gonna work so maybe try someone else’s <3

Answer:

A. 24 lap/hour.

B. r = 24h

Answer:63

Step-by-step explanation:

 multiply 72 by 7 then divide i by 8

(72×7)/8

=63

It's 63.

simplify the equation 7/8×72 multiple 7×9 solution is 63

Answer:

A and D is true.

(see how to solve in pic)

Answer:

C. the dollars per minute late

Step-by-step explanation:

In the question it says 0.50 represents the dollars charged per minute late.

Answer:

The answer would be A

Step-by-step explanation:

WARNING THIS MIGHT BE WRONG BUT WORTH A SHOT

I say "a" because if you look at the problem or equation given

10.50=0.50a+3

10.50 is for the amount of money the had to pay

0.50 is the cost for if they are late for pick-up

the 3 is for the base fee

the amount of mins would be times by 0.50 then that plus 3.

I HOPE THIS HELPED( SORRY IF WRONG)

-dani~

Answer:

2

Step-by-step explanation:

Answer:

\(23 = z \times 15\)

Divide boty sides by 15

\(z = \frac{23}{15} = 1.53\)

The value of z is 23/15

Answer:

correct answer is 7 years

Step-by-step explanation:

A+56=9(A)

56+9A

A=7

he will be 7 years old he is pretty old

Answer:

Kevin is 7 years old right now.

Step-by-step explanation:

Let x be Kevin's age right now, that's what we're trying to find.

In 56 years, he'll be 9 times older than he is now, so we can say:

x + 56 = 9x

Now we can get the x values on the right side of the equation so that:

56 = 8x

Now solve for x and you have his current age which is 7.

We can conclude that exists 211680 ways.

We know that the three research department is have 8, 10, and 7 members.

We choose a delegate and an alternate to represent the department.

First case: department have 8 members.

So, for a delegate, we have 8 options, and for a alternate 7, so a total of

\(8 \times 7 = 56 \ \text{options}\)

Second case: department have 10 members.

So, for a delegate, we have 10 options, and for a alternate 9, so a total of

\(10\times 9 =90 \ \text{options}\)

Third case: department have 7 members.

So, for a delegate, we have 7 options, and for a alternate 6, so a total of

\(7\times6 = 42 \ \text{options}\)

Therefore, we get:

\(56 \times 90 \times 42 = \bold{211680}\)

Hence, we conclude that exists 211680 ways.

For a similar problem about this, please click the link below:

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Answer:

A) 84x-16y-10.6

2(14x-3y+28x+12.2-5y-17.5)

2(48x-3y+12.2-5y-17.5)

2(48x-8y+12.2-17.5)

2(48x-8y-5.3)

84x-16y-10.6

Step-by-step explanation:

15.00_____100percent

18.60_____124 percent.

it increased witf 24 percent

Answer:

0.2% increase

First, you find the change between $15.50 and $18.60, which is 3.10. Then you do 3.10 divided by the original, which is 15.50. You should get 0.2.

Step-by-step explanation:

Answer:

395.5

Step-by-step explanation:

You have to multiply 14.75 x 6 1/2= 383.5. Then you have to add the 12 dollar tip, leaving you with 395.5

The elements you need to consider when choosing an investment are liquidity, risk, time, and return.

Investment refers to the act of allocating money or resources towards a specific project, asset, or venture with the expectation of generating profit or income in the future.

It involves sacrificing some present consumption or assets in exchange for the expectation of future benefits.

We have,

When choosing an investment, you need to consider the liquidity of the investment (how easily it can be bought or sold), the risk associated with the investment, the time horizon of the investment (how long you plan to hold it), and the expected return on the investment.

All of these elements are important to consider when making an investment decision.

Thus,

The elements you need to consider when choosing an investment are liquidity, risk, time, and return.

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Answer:

C. 448 square centimeters

Step-by-step explanation:

38+18/2(16)

=448 square centimeters

:3

Answer:

A (3, 4)

Step-by-step explanation:

A has to be positioned horizontally along B. This means its x coordinate is the same as x-coordinate of B which is 4

A also has to be positioned vertically below C. This means its y coordinate is the same as the y-coordinate of C. So y-coordinate of A is 3

So coordinates of A are (3, 4)

Answer:

Step-by-step explanation:

c.) as it is shown in both as a true statement

hope this helps Pls make me brainliest and like

Answer: 339 1/2

Step-by-step explanation: To solve, you have to do 48 1/2 x 7, and you will get 339 1/2

Answer:

339 1/2 ounces

Step-by-step explanation:

48.5 x 7= 339.5=339 1/2

Answer:

99 square ft

Step-by-step explanation:

Area of the composite shape

= Area of rectangle - Area of triangle

\( = 12 \times 10 - \frac{1}{2} \times 6 \times 7 \\ \\ = 120 - 21 \\ \\ = 99 \: {ft}^{2} \)

Answer:

99 square feet

Step-by-step explanation:

Simply solve for the rectangle using a=lw

12 x 10 = 120

Now subtract the area of the triangle using a=bh/2

7 x 6= 42

42/2= 21

120-21= 99

Hope this helps.

Answer:

C

Step-by-step explanation:

Answer:

Step-by-step explanation:

To make long equation simpler to simplify

Inverse operation can be used to cancel out terms, which can be used to simplify the expression. Example:

\(x^2 = 9\)

taking the inverse of this by taking teh square root

\(\sqrt(x^2) = \sqrt(9) = 3\)

Answer:

First, simplify the parentheses. Then, do exponents. Next, multiply. Finally, add and subtract from left to right.

Step-by-step explanation:

Answer:  You always complete multiplication and division before addition and subtraction, working left to right inside the parentheses first.

For example, if your equation was:

23 + (12 x 5 + 6 -7), then you would first complete the multiplication (12 x 5), then add 6 (+6), then subtract 7 (-7), and lastly add 23 (+23) which is outside the parentheses.

Your example:

40 ➗ 1 + 3 - (3 x 7) + (7 - 5)

First: (3 x 7)

second: (7 - 5)

third 40 / 1

fourth: 40 + 3

fifth: 43 - 21

sixth: 22 + 2

=24

Step-by-step explanation:

You should always follow the order of operations rule that follows a sequence of evaluation steps for a given expression. Remember the order using PEMDAS: Parentheses, Exponents, Multiplication, Division (from left to right), Addition, and Subtraction (from left to right). Therefore, you first complete work in the parentheses for multiplication & division (working left to right) and then addition and subtraction (working left to right). Then you complete any math (following the same order) outside the parentheses.

Answer:

2/3-=40 minutes to mow half his yard

Step-by-step explanation:

80- minutes to mow full yard

Answer: 1hr 20 minutes

Step-by-step explanation:

Answer:

To solve the equation -(x + 3) = 2(x - 3) for x, we can follow these steps:

Step 1: Distribute the negative sign on the left side of the equation:

-(x + 3) = 2(x - 3)

=> -x - 3 = 2(x - 3) (using the distributive property)

Step 2: Expand the right side of the equation:

-x - 3 = 2x - 6

Step 3: Add x to both sides of the equation to isolate the x term on one side:

-x + x - 3 = 2x + x - 6

=> -3 = 3x - 6

Step 4: Add 6 to both sides of the equation:

-3 + 6 = 3x - 6 + 6

=> 3 = 3x

Step 5: Divide both sides of the equation by 3 to solve for x:

3/3 = 3x/3

=> 1 = x

So, the correct value of x that makes the equation true is B. 1.

PLEASE MARK BRAILYISTT :D

Answer:

B, one

Step-by-step explanation:

In order to solve this, you can solve the equation. First, you can use the distributive property to get -x-3=2x-6. If you make the variables on one side and the constants on the other, you will get -3x-3=-6. This can further simplify to -3x=-6. Divide both sides by -3 to get that x=1. Then, the correct answer is B.

Answer:

IT is A and B

Step-by-step explanation:

It is on khan academy

No triangle is possible. The sum of the interior angles of a triangle must be 180°. However, the sum of the given angles is 100° + 10° + 90° = 200°, which is greater than 180°. Therefore, no triangle can be drawn with these angle measures.