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Arte-miy333 [17]
3 years ago
7

The bank charges 4 dollars a day for accounts under $100. Lisa's account had a balance of $15. What would the y-intercept be?

Mathematics
1 answer:
Archy [21]3 years ago
8 0

Answer:

her y intercept would be $15.

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The bill for five glasses of apple juice and four salads is $9.50, but the bill for four glasses of apple juice and five salads
Elena L [17]

Answer: the bill for a glass of apple juice is $0.7 and the bill for a salad is $1.5

Step-by-step explanation:

Let x represent the bill for a glass of apple juice.

Let y represent the bill for a salad.

The bill for five glasses of apple juice and four salads is $9.50. It means that

5x + 4y = 9.5 - - - - - - - - - - - 1

The bill for four glasses of apple juice and five salads is $10.30. This means that

4x + 5y = 10.30- - - - - - - - - - - -2

Multiplying equation 1 by 4 and equation 2 by 5, it becomes

20x + 16y = 38

20x + 25y = 51.5

Subtracting, it becomes

- 9y = - 13.5

y = - 13.5/-9

y = 1.5

Substituting y = 1.5 into equation 1, it becomes

5x + 4 × 1.5 = 9.5

5x + 6 = 9.5

5x = 9.5 - 6 = 3.5

x = 3.5/5 = 0.7

3 0
4 years ago
What is the value of 3/4 k to the 3rd power -9 when K=3
allochka39001 [22]

So, I am assuming your problem looks like this: (3k/4)^3

If that is true, then simply substitute 3 in for k so you get: [3(3)/4]^3

That is equal to (9/4)^3 which is equal to (9/4)(9/4)(9/4) = (729/64)

So your answer is 729/64 or 11.390625

8 0
4 years ago
if two angles are supplementary an one of them is 30 degrees what is the measurement of the second angle
Dafna11 [192]
Supplementary angles always add up to 180. So you need to subtract 30 from 180. Which would give you 150. So 150 is your answer! 
6 0
3 years ago
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The temperature is 50°F The temperature will decrease by 4°F each hour. Let
Llana [10]

Answer:

Step-by-step explanation:

The answer will be 5 hours

5 0
3 years ago
What is the sum to ?×?÷?=297​
Nadusha1986 [10]

Answer:

Step-by-step explanation:

Therefore, three consecutive integers that add up to 297 are 98, 99, and 100. We know our answer is correct because 98 + 99 + 100 equals 297 as displayed above.

5 0
3 years ago
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