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vladimir2022 [97]
2 years ago
9

Subtract 8.3 – 2.57 =

Mathematics
1 answer:
likoan [24]2 years ago
4 0

Answer:

5.73

Best of luck

Step-by-step explanation:

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X is less than or equal to 9 and greater than or equal to 5
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5≤x≤9 it can also be reversed as 9≥x≥5 which is the same thing
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3 years ago
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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

so

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

so

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
Kendrick takes a sheet of paper and makes a cut from corner to corner the cut he makes is 9 inches long the length of the paper
NNADVOKAT [17]

Answer:

Step-by-step explanation:

765

3 0
3 years ago
The part (aka "is") = 8 and the percent is 42, what is the whole (aka
marysya [2.9K]

Answer:

33

Step-by-step explanation:

If you simplify what the question is saying, it's basically..

8 is 24% of <u>what number?</u>

To find out, you can simply set up an equation.

((24% = 0.24 as a decimal (move the decimal point two times to the left))

8 = 0.24 x N (N is just the 'whole')

To solve, you just need to divide 8 ÷ 0.24. So, N = 33.333 repeating.

The question says to round to the nearest whole number, so the answer would just be 33.

8 0
2 years ago
45 x 3.5 please explain
Alinara [238K]

Answer:

157.5

Step-by-step explanation:

Try like this:

45 times 3.5

8 0
2 years ago
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