3 years ago

Help of using proportion to solve problems

Mathematics

1 answer:

Sindrei [870]3 years ago

4 0

Hint: it will help to change all denominators to the same one using gcf or lcm

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When looking at the mean of a data set, what information do you get when looking at the mean?

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Step-by-step explanation:

You first have to add all of the numbers in the data set, than you divide by how many numbers are in the data set

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2 years ago

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Four consecutive odd integers can be represented by n, n+2, n+4, and n+6. If the sum of the 4 consecutive odd integer is 46, wha

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46 = n + n + 2 + n + 4 + n + 6
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Please help ! Desperate here ! Evaluate the expression : 2{5[12+5(500-100)+399]}

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Answer:

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Step-by-step explanation:

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3 years ago

Mrs. Hanson has 2 pies for a party. She calculates that if she splits the pies evenly among the guests, they will each receive 1

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2 years ago

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-8z+(4.5)+3.5z+7y-1.5

bogdanovich [222]

Answer:

$\boxed{\sf{7y+3-4.5z}}$

Step-by-step explanation:

In order to combine like terms, you have to isolate x and y from one side of the equation.

$\sf{-8z+\left(4.5\right)+3.5z+7y-1.5}$

First, thing you do is remove parentheses.

$\Longrightarrow: \sf{-8z+4.5+3.5z+7y-1.5}$

Solve.

Then, you combine like terms.

$\Longrightarrow:\sf{-8z+3.5z+7y+4.5-1.5}$

Add/subtract the numbers from left to right.

-8z+3.5z=-4.5z

Rewrite the problem down.

$\Longrightarrow: \sf{-4.5z+7y+4.5-1.5}$

Solve.

4.5-1.5=3

$\Longrightarrow: \boxed{\sf{7y+3-4.5z}}$

Therefore, the correct answer is 7y+3-4.5z.

I hope this helps, let me know if you have any questions.

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1 year ago