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3 years ago

45 is what percent of 60?

Mathematics

1 answer:

jonny [76]3 years ago

4 0

45 is 75% of 60.

45/60 = 0.75.

Just as 60 * 0.75 = 45

Or 45 / 0.75 = 60

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Solve: 15 = -(1/2)(-12x + 2)

notsponge [240]

your answer is: = 8/3

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3 years ago

Divide $28 in the ratio 5:2:7.

Nina [5.8K]

Answer:

Step-by-step explanation:

5+2+7=14

28/14=2

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2*7=14

10:4:14

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3 years ago

Simplify this expression. <br> 6x2(3x)<br><br> 18x2 <br><br> 18x3<br><br> 108x2<br><br> 108x3

vazorg [7]

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8 0

3 years ago

A rectangular piece of metal is 25 in longer than it is wide. Squares with sides 5 in long are cut from the four corners and the

Licemer1 [7]

Answer:

The original length was 41 inches and the original width was 16 inches

Step-by-step explanation:

Let

x ----> the original length of the piece of metal

y ----> the original width of the piece of metal

we know that

When squares with sides 5 in long are cut from the four corners and the flaps are folded upward to form an open box

The dimensions of the box are

$L=(x-10)\ in\\W=(y-10)\ in\\H=5\ in$

The volume of the box is equal to

$V=(x-10)(y-10)5$

$V=930\ in^3$

$930=(x-10)(y-10)5$

simplify

$186=(x-10)(y-10)$ -----> equation A

Remember that

The piece of metal is 25 in longer than it is wide

$x=y+25$ ----> equation B

substitute equation B in equation A

$186=(y+25-10)(y-10)$

solve for y

$186=(y+15)(y-10)\\186=y^2-10y+15y-150\\y^2+5y-336=0$

Solve the quadratic equation by graphing

using a graphing tool

The solution is y=16

see the attached figure

Find the value of x

$x=16+25=41$

therefore

The original length was 41 inches and the original width was 16 inches

3 0

3 years ago

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kati45 [8]

The sum of the four answers is -8.3 i believe

8 0

2 years ago

Read 2 more answers