Eight times the difference of a number and seventeen is thirty

1 answer:

4 0

OK. Great. Thanks for sharing. Do you have a question to ask ?

My hunch is that you want to know what the "number" is.
Here's how to set it up and solve it:

"a number" . . . . . . . . . . . . . . . Q

"The difference of
a number and 17" . . . . . . . . . . Q - 17

"eight times the difference" . . . 8 (Q - 17)

"is thirty" . . . . . . . . . . . . . . . . . . 8 (Q - 17) = 30

Eliminate parentheses on the left side:

8Q - 136 = 30

Add 136 to each side: 8Q = 166

Divide each side by 8 : Q = 20.75

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EASY MATH PLEASE HELP! :)

denis-greek [22]

The area of the rectangle is
3x4=13
The area of the triangle is 4
The total area will be 13+4=17

4 0

3 years ago

Help please pretty please i do not understand

Natalija [7]

If i remember correctly i think you just cross multiply <span />

7 0

3 years ago

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Which expressions are equivalent to the one below? Check all that apply. 8^x

Dvinal [7]

$\bf a)\qquad \left( \cfrac{32}{4} \right)^x\implies \left( \cfrac{8}{1} \right)^x\implies (8)^x\implies 8^x
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b)\qquad x^4\impliedby \textit{nothing to simplify}
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c)\qquad 8\cdot 8^{x-1}\implies 8^1\cdot 8^{x-1}\impliedby \textit{same base, add the exponents}
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\left. \qquad \right.\left. \qquad \right.8^{1+x-1}\implies 8^x$

$\bf d)\qquad \cfrac{32^x}{4}\implies \cfrac{(2^5)^x}{2^2}\implies (2^5)^x\cdot 2^{-2}\implies 2^{5x}\cdot 2^{-2}\implies 2^{5x-2}
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e)\qquad \cfrac{32^x}{4^x}\implies \left( \cfrac{32}{4} \right)^x\implies \left( \cfrac{8}{1} \right)^x\implies 8^x
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f)\qquad 8\cdot 8^{x+1}\implies 8^1\cdot 8^{x+1}\implies 8^{1+x+1}\implies 8^{x+2}$

7 0

4 years ago

1. When 15 is subtracted from the measure of an angle, the result is the measure of a right angle. What is the measure of the or

shutvik [7]

Answer:

It is 105 degrees. Since 105-15=90 degrees.

4 0

3 years ago

∠1 is a complement of ∠2, and m∠1=68∘. ∠2 is a supplement of ∠3. Find m∠3.

Airida [17]

Answer:

m∠3 = 158°

Step-by-step explanation:

Angles one and two are complementary angles.

Complementary angles add up to 90°. Given the measurement of ∠1:

68° + m∠2 = 90°

68° - 68° + m∠2 = 90° - 68°

m∠2 = 22°

Angles 2 and 3 are supplementary angles.

Supplementary angles add up to 180°.

22° + m∠3 = 180°

22° + m∠3 = 180° - 22°

m∠3 = 158°

Hope this helps.

4 0

4 years ago

Read 2 more answers