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Talja [164]
3 years ago
10

Solve for x. Worth 20 pts.

Mathematics
1 answer:
Vinvika [58]3 years ago
6 0
You’d set up a proportion. I did 25/15=7x-40/18.
Then you would cross multiply to get 15(7x-40)=450
Distribute the 15.
105x-600=450
Add 600 to both sides, so the -600 cancels out.
Then you’re left with 105x=1050
Divide both sides by 105 and you get x=10
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Tresset [83]

Answer:

y=44

Step-by-step explanation:

hope this helps!

5 0
3 years ago
An empty shipping box box weighs 250 grams. The box is filled with T shirts weighs 132.5 grams. The equation W=250+132.5T repres
garik1379 [7]

Answer:

the solution means you can solve for either of the variables when one of the variables is known

Step-by-step explanation:

Given:

W=250+132.5T

Where,

W = weights in grams of the filled box

T = number of shirts in the box

T=8 when W=1310

W=250+132.5T

Substitute T = 8 into the equation

W = 250 + 132.5(8)

= 250 + 1,060

= 1,310

The solution means when number of shirts in the box is 8, the total weight in grams of the filled box is 1,310

It also means you can solve for the number of shirts if weight of the box is given as 1310

W=250+132.5T

1310 = 250 + 132.5T

1310-250 = 132.5T

1,060 = 132.5T

T = 1,060 / 132.5

= 8

T = 8

Therefore, the solution means you can solve for either of the variables when one of the variables is known

7 0
3 years ago
Supposed to pay $32 for a pair of shoes that was originally $40 what was the percent of the decrease in price of the shoes set u
Eddi Din [679]

Answer: 20% decrease.

<u>Step-by-step explanation:</u>

Percent\ Change = \dfrac{New - Original}{Original}

\dfrac{32-40}{40} = \dfrac{-8}{40} =-0.20 = -20\%

The negative sign represents a decrease.

4 0
4 years ago
What is 399 divided by 19
tekilochka [14]

Answer:

Calculator doesn’t exist anymore?

Step-by-step explanation:

8 0
3 years ago
Which of the following is not a correct factorization of the binomial 10x2 + 40x ?
meriva
B. To be careful, use brackets: 10(1*2) + 4x which will be 20 + 40x or as you have it, 10*2 + 40x.
5 0
3 years ago
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