MATHEMATICS HIGH SCHOOL

On Tuesday Shanice bought five hats. On Wednesday half of all the hats that she had were destroyed. On Tuesday there were only 17 left. How many did she have on Monday?

Answers

Answer 1
Answer:

Answer:

So on Monday, Shanice had 29 hats.

Step-by-step explanation:

Let x be the number of hats that Shanice had  on Monday.

We know that on  Tuesday Shanice bought five hats.  

On Wednesday half of all the hats that she had were destroyed.    

On Thursday there were only 17 left.

We have the following equation:

(x+5)/(2)=17\n\nx+5=17\cdot 2\n\nx+5=34\n\nx=34-5\n\nx=29

So on Monday, Shanice had 29 hats.

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Faye and Andrew have written down the same negative number.Faye squares the number then multiplies by 2 and adds 4.
Andrew multiples the number by 21 then subtracts the result from 40.
They both finish with the same answer. What was the number?

Answers

x - the number

Faye squares the number: x²
then multiplies by 2: 2x²
and adds 4: 2x²+4

Andrew multiplies the number by 21: 21x
then subtracts the result from 40: 40-21x

They both finish with the same answer, so the results are equal.
2x^2+4=40-21x \n2x^2+21x+4-40=0 \n2x^2+21x-36=0 \n2x^2+24x-3x-36=0 \n2x(x+12)-3(x+12)=0 \n2x-3=0 \ \lor \ x+12=0 \n2x=3 \ \lor \ x=-12 \nx=(3)/(2) \ \lor \ x=-12

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The number is -12.

If Walt can paint 25 feet of fence in an hour, and Joe can paint 35 feet in an hour, howmany minutes will it take them to paint a 150-foot fence, if they work together?

Answers

If Walt paints 25 ft. on one hour, and Joe pairs 35 ft in an hour, then they paint 60 ft per hour together. So, 60ft divided into the 150 ft fence equals 2 1/2 hours. 

It will take Walt & Joe 2 1/2 hours to paint a 150ft fence.
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Help. Will give most Brainly.

Answers

x is 64 because the 32 is half of x. So, when it is half of x, you multiply it by 2. 32 x 2 =64 = x.

Answer:

x is 64

Step-by-step explanation:

give the award to the guy with a becaus3

Solve the question: 12y = 132.
A. Y = 144
B. Y = 1/11
C. Y = 11/12
D. Y = 11

Answers

Answer is D. Y=11 12*y-(-132=0
12y+132=12•(y+11)
12y = 132 

(12y)/(12) = (132)/(12)  Divide \ both \ sides \ by \ 12 

\boxed{\boxed{y=11}}   Solution

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A.
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B.
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C.
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Answers

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Answers

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