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Alja [10]
3 years ago
11

15 × (-4) ÷ 5 please

Mathematics
1 answer:
Step2247 [10]3 years ago
7 0

Answer: -12

Work: Since -4 is in parentheses, I did -4 / 5 first. After doing the division, I had gotten -0.8. I multiplied -0.8 by 15, and had gotten -12.

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Evaluate 3z when z =9
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Answer: 27

Step-by-step explanation: To evaluate this expression, we will need to plug in the value of "z" to get our answer. In this problem, we are given that "z" is equal to 3 so we will multiply 9 by 3 which equals 27.

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A block of southern pine wood has a mass of 54.6 g and density of 0.65 ​ g/cm3 ​ . The block is a rectangular prism with a lengt
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Find the volume of a rectanglular prism if the length is x and the width is x^2 and the height is 5x^2 +4x+1. Use the formula v=
My name is Ann [436]

Answer:

The volume = 5x^{5}+4x^{4}+x^{3}

Step-by-step explanation:

* The rule of the volume of the rectangular prism:

- the volume of any prism = base area × height

∵ The base of the rectangular prism is rectangle

∵ Area any rectangle = Length × Width = l × w

∴ The volume of the rectangular prism = l × w × h

* In the problem:

∵ l = x , w = x² , h = 5x² + 4x + 1

∴ The volume = (x)(x²)(5x² + 4x + 1)

* We will simplify it

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∵ x × x² = x³

∴ x³(5x² + 4x + 1)

∵ x³ × 5x² = 5x^5

∵ x³ × 4x = 4x^4

∵ x³ × 1 = x³

∴ The volume = 5x^{5}+4x^{4}+x^{3}

5 0
3 years ago
Aaron has 5 dimes and 2 nickels. how much money does Aaron have?
Doss [256]

Knowing that one dime has a 10 cent value and that a nickle has a 5 cent value, we can use multiplication or addition to find the answer.

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50 + 10 = 60   5 dimes and 2 nickles are worth 60 cents when added together.

ANSWER: Aaron has 60 cents.

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5 0
3 years ago
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