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3 years ago

Which expression represents the phrase 4 times the sum of 9 and 6

2 answers:

6 0

4(9+6)

Please
Excuse
My
Dear
Aunt
Sally

Parentheses
Exponents (none in this case)
Multiply
Divide
Add
Subtract

4(15)
=60

Dominik [7]3 years ago

3 0

It would be x=4(9+6)

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Candice spent 5 1/4 hours doing her homework. Her brother, Ronald, spent 1/2 that number of hours doing his homework. How many h

Elden [556K]

Let

x-----> the number of hours that Candice spent doing her homework

y-----> the number of hours that Ronald spent doing his homework

we know that

$x=5\frac{1}{4}\ hours$

convert mixed number to an improper fraction

$5\frac{1}{4}\ hours=\frac{5*4+1}{4}= \frac{21}{4}\ hours$

$x=\frac{21}{4}\ hours$ -------> equation A

$y=\frac{1}{2}x$ ------> equation B

Substitute equation A in equation B

$y=\frac{1}{2}*\frac{21}{4}=\frac{21}{8}\ hours$

convert an improper fraction to a mixed number

$\frac{21}{8}\ hours=2.625=2+0.625=2+\frac{5}{8}=2\frac{5}{8}\ hours$

therefore

<u>the answer is the option B</u>

$2\frac{5}{8}\ hours$

5 0

2 years ago

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Solve this please!!!

Soloha48 [4]

Answer:

x = 17

Step-by-step explanation:

These angles are supplementary so (2x + 5) + (8x = 5) = 180 then you just do the algebra

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5 0

3 years ago

Is 3^2 + 3^3 equal to 3^5?Explain.

Whitepunk [10]

Answer:

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Step-by-step explanation:

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3 years ago

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I need help with this math question due today

hammer [34]

Answer:

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3 0

2 years ago

I'd appreciate your guys' help! :)

butalik [34]

Point slope form is :

8+12 = m(9-4)

8+12= 9m -4m

20= 5m

20/5= 5m/5

m= 4

Slope form

8= 4(9) +b

8= 36+b

-28=b

Y= 4x -28

8 0

2 years ago