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velikii [3]
2 years ago
14

The expression above can also be written in the form . For this expression, a = , b = , and c = . b 3 and 5/5

Mathematics
1 answer:
Svetllana [295]2 years ago
7 0

For this expression, the variables are equal to:

  • a = 15
  • b = 7
  • c = 4

<h3>What is an expression?</h3>

An expression is a mathematical equation which shows the relationship existing between two or more numerical quantities or variables.

<u>Given the following expression:</u>

\sqrt[4]{15^{7} }

From the law of indices, we have:

\sqrt[c]{a^{b} } =a^{\frac{b}{c} } \\\\\sqrt[4]{15^{7} } =15^{\frac{7}{4} }

For this expression, the variables are:

  • a = 15
  • b = 7
  • c = 4

Read more on expressions here: brainly.com/question/12819629

#SPJ1

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5. Joey has $125 to spend on school clothes this year. He only spent $80.00 on school
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Answer:

64%

Step-by-step explanation:

divide 80 by 125 and get .64

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A metallurgist has one alloy containing 32% copper and another containing 65% copper. How many pounds of each alloy must he use
kompoz [17]

Answer:

<h2>30.67 pounds of 32% copper alloy and 10.33 pounds of 65% copper alloy</h2>

Step-by-step explanation:

        First alloy contains 32% copper and the second alloy contains 65% alloy.

We wish to make 44 pounds of a third alloy containing 42% copper.

       Let the weight of first alloy used be x in pounds and the weight of second alloy used be y in pounds.

       Total weight = 44\text{ }pounds=x+y        -(i)

      Total weight of copper = 42\%\text{ of 44 pounds = }32\%\text{ of }x\text{ pounds + }65\%\text{ of }y\text{ pounds }

       \dfrac{42\times 44}{100}=\dfrac{32x}{100}+\dfrac{65y}{100}\\\\ 32x+65y=1848        -(ii)

       Subtracting 32 times first equation from second equation,

32x+65y-32x-32y=1848-32\times44\\33y=440\\y=13.333\text{ }pounds \\x=30.667\text{ }pounds

∴ 30.67 pounds of first alloy and 13.33 pounds of second alloy were used.

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3 years ago
1) Hot dogs are sold in packs of 10 and hot dog buns are sold in packs of 8. Tommy wants
liberstina [14]

Answer:

150

Step-by-step explanation

1- 10

2- 40

3- 80

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5- 150

10 to 40- is 30 between

40 -80 is 40 between

80 -110 is 30 between

110-150 is 40 between.

you have to keep the pattern going

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What is associative property of addition
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You can add or multiply regardless of how the numbers are grouped.
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