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3 years ago

Jennifer can clean the house by herself in 3 hours. Her little brother Andy helps her clean and it takes them 2

Mathematics

2 answers:

Klio2033 [76]3 years ago

8 0

Answer:

Step-by-step explanation:

c. 6 hours

Katen [24]3 years ago

7 0

Answer:

Step-by-step explanation:

If he could clean the house alone in one hour, then it wouldve taken him and his sister less than that. if he could clean it in 3 hours, it wouldve tkane him and his sister 1.5 hours.

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What does 118=k+70 answer?

kumpel [21]

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Elliot has a collection of 20 toy cars. Will he be able to put an equal number of toy cars on 3 shelves

Yakvenalex [24]

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3 years ago

What is the slope represented by the following table. X-1,0,1,2. Y6,4,2,0

stiv31 [10]

I'm pretty sure the answer is D.-2

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3 years ago

Daniel weighed 143 1/2 lbs. He

stiv31 [10]

Answer: 186+14-26+5=179 pounds

Step-by-step explanation:

1. Regainged 5 pounds and weighed 179 pounds = So he weiged 179-5=174 pounds."and lost 26 pounds"

2. To weigh 174 pounds,so he used to weigh 174+26=200 pounds, David gained 14 pounds over the winter, so he weighed 200-14=186 pounds.

3. Check 186+14-26+5=179 pounds

If you are doing algebra, then X+14-26+5=179

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HOPE THIS HELPS!! :)) TRIED MY BEST!!

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2 years ago

T²= 4π² (M+m) ÷ ug

inessss [21]

Starting with ...

$T^2=\dfrac{4\pi^2(M+m)}{ug}$

1) Multiply by the inverse of the coefficient multiplying the sum with M, then subtract m.

$\dfrac{T^2ug}{4\pi^2}=M+m\\\\M=\dfrac{T^2ug}{4\pi^2}-m$

2) Multiply by g/T²

$g=\dfrac{4\pi^2(M+m)}{T^2u}$

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3 years ago