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iogann1982 [59]
3 years ago
9

Plz help me it worth 50% of my grade tell wethere it’s proportional of not

Mathematics
1 answer:
Julli [10]3 years ago
5 0

Answer:

2) is not proportional, 3) is not proportional, 5) is proportional, 6) is not proportional.

Step-by-step explanation:

Number 2 is not proportional since it doesn't go through the origin on the graph and the line is not a straight line.

Number 3 does not go through the origin, so number 3 is also not proportional.

Number 5 is proportional since when you divide y by x, it is always 7.

Number 6 is not proportional because when you divide y by x or x by y there are not the same answers.

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3 years ago
Carmen has $30 in store bucks and a 25% discount coupon for a local department store. What maximum dollar amount can Carmen purc
Klio2033 [76]

Answer:

$110.

Step-by-step explanation:

Let x be the cost of item that Carmen purchased from departmental store.

We are told that Carmen has $30 in store bucks and a 25% discount coupon for a local department store. We are asked to find the cost of Carmen's purchase so that after her store bucks and discount are applied, her total is no more than $60 before sales tax.  

As the $30 store bucks are applied before the 25% discount is applied, so we need to find x such that x-30 minus 25% of (x-30) should be less than or equal to 60. We can represent this information in an equation as:

x-30-((x-30)\times\frac{25}{100})\leq 60    

x-30-((x-30)\times 0.25)\leq 60

x-30-(0.25x-7.5)\leq 60    

x-30-0.25x+7.5\leq 60  

0.75x-22.5\leq 60  

0.75x-22.5+22.5\leq 60+22.5

0.75x\leq 82.5  

\frac{0.75x}{0.75}\leq \frac{82.5}{0.75}

x\leq 110    

Therefore, Carmen should make purchases at-most for $110 so that her total is no more than $60 before, sales tax.

3 0
4 years ago
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Hello I’m in algebra and I need help on questions I’ll give brainlist ASAP!
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Answer:

9/12 = 4/x

Step-by-step explanation:

The height of the larger triangle is 9. The base of the larger triangle is 12. So let's make the ratio 9/12.

The height of the smaller triangle is 4. The base of the smaller triangle is x. So let's make the ratio 4/x.

Since both triangles are congruent, let's make these both equal each other to solve for x (if you need to).

Thus, it's 9/12 = 4/x.

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Answer:

140,000

Step-by-step explanation:

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Savings accounts pay interest on the funds deposited. True False
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True you can save money to do or finish things you didn't finish 
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3 years ago
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