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muminat
3 years ago
15

Should i add, multiply, subtract, or divide n+16=9

Mathematics
1 answer:
denis23 [38]3 years ago
3 0

Answer:

subtract

Step-by-step explanation:

16 from 9

n = 9 - 16

n = -7

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I really need help on this !!
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r = -1

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(y2-y1)/(x2-x1)=m

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4 0
2 years ago
Emily added 5 grams of water into 20 grams of 50% salt solution.
atroni [7]
Answers:
She made ___25___ grams of ___40___% salt solution

------------------------------------------------------------------

The given info "20 grams of 50% salt solution" tells us that we have 10 grams of pure salt
Since 50% of 20 = 0.50*20 = 10
Put another way, we have 10 grams of pure salt out of 20 total so 10/20 = 0.50 = 50% salt solution

The 20 grams of solution updates to 25 grams of solution when we add the 5 grams of water
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Answer:

The number of children's tickets sold was 27

Step-by-step explanation:

Let

x ----> the number of children's tickets sold

y ----> the number of adult's tickets sold

we know that

6.10x+9.40y=1,179.90 ----> equation A

y=4x ----> equation B

Solve the system by substitution

Substitute equation B in equation A

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solve for x

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therefore

The number of children's tickets sold was 27

8 0
3 years ago
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