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3 years ago

Simplify 1/4 y + 1 1/2 + 2 -1 3/4y -12

Mathematics

1 answer:

Zigmanuir [339]3 years ago

7 0

Answer:

-3y = -9/2

Step-by-step explanation:

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Thank you for your help

olya-2409 [2.1K]

Answer:

I'm not completely sure but if they want exponents for 6 * 6 * 6 then it should be $6^{3}$

Step-by-step explanation:

5 0

2 years ago

Working together, it takes Sam, Jenna, and Francisco two hours to paint one room. When Sam works alone, he can paint one room in

lutik1710 [3]

Answer: 12 hours

Step-by-step explanation:

Given : Working together, it takes Sam, Jenna, and Francisco two hours to paint one room.

When Sam works alone, he can paint one room in 6 hours. When Jenna works alone, she can paint one room in 4 hours.

Let 't' be the time taken by Francisco to paint one room on his own.

Then , we have

Rate of work of Sam +Rate of work of Jenna + Rate of work of Francisco =Rate of work they all do together

$\dfrac{1}{6}+\dfrac{1}{4}+\dfrac{1}{t}=\dfrac{1}{2}$

i.e. $\dfrac{1}{t}=\dfrac{1}{2}-(\dfrac{1}{6}+\dfrac{1}{4})$

i.e. $\dfrac{1}{t}=\dfrac{1}{2}-(\dfrac{4+6}{24})$

i.e. $\dfrac{1}{t}=\dfrac{1}{2}-\dfrac{10}{24}$

i.e. $\dfrac{1}{t}=\dfrac{1}{2}-\dfrac{5}{12}$

i.e. $\dfrac{1}{t}=\dfrac{6-5}{12}$

i.e. $\dfrac{1}{t}=\dfrac{1}{12}$

i.e. t= 12

Hence, Francisco would take 12 hours to paint one room on his own.

8 0

3 years ago

What is the square root of 17.5?

QveST [7]

Answer:

4.183

Step-by-step explanation:

4.183

Hope it helps

hope it helps

4 0

3 years ago

Andre has $ 90 dollars to spend on sneakers. This is 75% of the cost of the sneakers. How much more will the need? Solve and exp

goldenfox [79]

Answer:

I suppose the answer would be 120

Step-by-step explanation:

Well if 90 is 75% then 50% should be 60 and 25% should be 30.

so its going up and down by 30, so that would make 100% 120

please give brainliest

7 0

3 years ago

A cheetah ran 300 feet in 2.92 secods. What was the cheetahs average speed in miles per hou? Show your work.

Tom [10]

Start by converting 300 feet to miles and 2.92 seconds to hours.

300 feet 1 mile
----------- x -------------- = ?
1 5280 feet

2.92 sec 1 hr
----------------- * ---------------- = ?
1 3600 sec

Reduce each of the above fractions. Then convert 300 feet
-------------- to the
2.92 sec

equivalent speed / rate in mph using the converstion factors you derived earlier.

6 0

3 years ago