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3 years ago

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Mathematics

1 answer:

Oliga [24]3 years ago

8 0

Answer:

X = 120

Step-by-step explanation:

here's your solution

=> we need to find the number whose 25%

is 30

=>. now , let the number be X

=> solve for X

=>. 25/100*X = 30

=> X = 30*100/25

=> X = 120

hope it helps

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Step-by-step explanation:

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Step-by-step explanation:

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bogdanovich [222]

Answer:

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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.

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Add/subtract the numbers from left to right.

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Rewrite the problem down.

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

Solve.

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

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