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nirvana33 [79]
2 years ago
10

180= 90+30+x? what is the value of x? make sure you give good reasoning

Mathematics
2 answers:
tiny-mole [99]2 years ago
4 0

Answer:

ok there we go,

180 = 90 + 30 + x

180 = 120 + x

x = 180-120

x = 60 is the value of x

levacccp [35]2 years ago
3 0
180=110 + x
-110. -110
70 = x
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The variable z is directly proportional to x. When x is 11, z has the value 44. What is the value of z when x = 21?
dimulka [17.4K]

Directly proportional, both increase/decrease, Multiple k(constant you needed to solve for)..

Inversely --one increases as the other decreases, increase the denominator & fraction gets smaller.... So

Problem:

Dirextly to X (× by X)

Inversely to Y, (÷ by Y)

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Solve, working backwards: Z =5 becomes

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4 0
3 years ago
PLEASE HELP..... I WILL GIVE BRAINLIEST!!
Yakvenalex [24]
For the first part:

Every shirt she grabs, will cost her dollars, so if she grabs 3 shirts, then the cost of the shirts is:

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With the same rationale, if she grabs 2 pairs of jeans, the cost of the jeans is:

19+19=2(19)

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For the second part:

If she's paying 3 less for each shirt, then the cost of 3 shirts will become:

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In the same fashion, for the two jeans:

(19-3)+(19-3)=2(19-3)

So the expression for the total cost is:

3(12-3)+2(19-3)=36-9+38-6=59

For number three:

The amounts are different because the cost of the total purchase is different than the cost of each element that makes up the total purchase.

For number four:

If you're the owner, you want to give the smallest amount of discount (the one in part 1/a).

So you could clarify by saying there's 3 dollars of the TOTAL purchase's cost.
6 0
3 years ago
You have a gift card for your favorite clothing store for the amount of $60. You have found a shirt you want for $15. You don't
Zolol [24]

Let

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IRINA_888 [86]

Answer:

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