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dlinn [17]
2 years ago
15

A 20% acid solution is mixed with a 70% acid solution to get 50 liters of a 40% solution.

Mathematics
1 answer:
lilavasa [31]2 years ago
4 0

Answer:

B. 2x + 7y  100%  sure just got it right

Step-by-step explanation:

B. 2x + 7y

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A technique that allows shoppers to compare prices?
Roman55 [17]

A) comparison shopping is the answer

3 0
3 years ago
Miguel deposited $1,200 into an account that pays simple interest at an annual rate of 4%. What is the value of his initial depo
Angelina_Jolie [31]

Answer:

end of third year = 1,200*(1.02)^3  = 1,273.45 plus

end of second year = 1,200*(1.02)^2 = 1,248.48  plus

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Total = 3,745.9

Step-by-step explanation:

5 0
2 years ago
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The sum of two numbers is 95. If the larger is increased by twice the smaller, the result is 120. Find the numbers.
adelina 88 [10]
Hello!

You can make two expressions based on what you know

let x equal the larger number
let y equal the smaller number

x + y = 95
x + 2y = 120

We can use elimination to get rid of x

You can subtract the two equation to get rid of x

-y = -25

Since y is negative we can multiply both sides by -1 to make y positive

y = 25

Now we can put this into one of the other equations to find x

x + 25 = 95

subtract 95 from both sides

x = 70

The answers are 70 and 25

Hope this helps!
3 0
3 years ago
What is the answer to 18x-(8x-7)=67
Elza [17]

18x-8x+7=67

10x+7=67

10x=60

x=6

Check Your Work

18(6)-48+7=67

108-48+7=67

60+7=67

Hope this helps...

7 0
3 years ago
Read 2 more answers
HELP PLZ I NEED TO PASS LESSON
Ierofanga [76]

Step-by-step explanation:

452

8 0
3 years ago
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