2 years ago

A=5x+20

Mathematics

1 answer:

Vsevolod [243]2 years ago

5 0

Not sure what you’re asking ? but

move the terms
-5x+20-a

divide both sides
x=-4+1/5a

solution:
x=-4+1/5a

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Mrs. Connors went to the shopping mall and spent 3/5 of the money she had in her wallet at the department store. She bought new

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She spent 115 dollars on the pots and pans

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3 years ago

kate has the following scores on her math test this quarter 89,79,83, and 94.if she want an average of 85 ,what musther score be

Georgia [21]

She must score an 80.

85*5= 425
425-89-79-83-94= 80

8 0

1 year ago

Yoo someone help asaapp!

Zigmanuir [339]

Answer:

A 76

Step-by-step explanation:

7x+8+7x-2+5x+16+110=360

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4 0

2 years ago

Read 2 more answers

A chemist needs 130 milliliters of a 47% solution but has only 35% and 87% solutions available. Find how many milliliters of eac

choli [55]

Answer: Amount of 35% solution required = 100 milliliters

Amount of 87% solution required = 30 milliliters

Step-by-step explanation:

Given: Total solution required = 130 milliliters

Let x = Amount of 35% solution (in milliliters).

Then, Amount of 87% solution required = 130 - x

As per given,

Concentration = 0.35x +0.87(130-x)=0.47(130)

$0.35x +113.1-0.87x=61.1\\\\\Rightarrow\ -0.87x+0.35x=61.1-113.1\\\\\Rightarrow\ -0.52 x= -52\\\\\Rightarrow\ x=\dfrac{52}{0.52}=100$

Hence, Amount of 35% solution required = 100 milliliters

Amount of 87% solution required = 130-100 milliliters =30 milliliters

3 0

2 years ago

The hypotenuse of a right triangle is 50 mm. One leg of the right triangle is 30 mm. What is the length of the other leg?

d1i1m1o1n [39]

Answer:

40 mm

Step-by-step explanation:

It's 40 mm because the Pythagorean Theorem explains a^2 + b^2 = c^2.

This means the unknown number plus 30^2 = 50^2

What you want to do is 50^2 - 30^2= 20^2; which would be 2500-900=1600.

You got 1600 but that isn't your final answer. You want to find the square root 1600. So 1600 square rooted is 40.

40 mm is your final answer.

6 0

2 years ago