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krek1111 [17]
4 years ago
15

A school replaced 20% of it computers with new ones . what the total number of computers in the school if 55 computers were repl

aced?
Mathematics
1 answer:
sladkih [1.3K]4 years ago
7 0
The total is 275 because 100% divided by 20% is 5 and if 20%= 55 then that means that 55 goes into 100% 5 times so you multiply 55 by 5 to get 275. Hope I helped! Please rate me as the brainliest!
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75 - 3.5y - 4y = 4y + 6 <br> Solve for y please.
Alla [95]

Answer:

6

Step-by-step explanation:

75−3.5y−4y=4y+6

Step 1: Simplify both sides of the equation.

75−3.5y−4y=4y+6

75+−3.5y+−4y=4y+6

(−3.5y+−4y)+(75)=4y+6(Combine Like Terms)

−7.5y+75=4y+6

−7.5y+75=4y+6

Step 2: Subtract 4y from both sides.

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Step 3: Subtract 75 from both sides.

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Step 4: Divide both sides by -11.5.

−11.5y

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Hope this helps!

7 0
3 years ago
Read 2 more answers
Describe the symmetry of these functions
Oduvanchick [21]
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both line and rotational symmetry is incorrect because the first example would need to lock up inside the right side of that example.

the answer is C
5 0
3 years ago
Read 2 more answers
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