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makvit [3.9K]
2 years ago
6

Kai calculates that he spends 15% of a school day in science class. If he spends 75 minutes in science class, how many minutes d

oes he spend in school?
Mathematics
1 answer:
lakkis [162]2 years ago
8 0
Make a porportion

15        100
----  = ------
75        x

now cross multiply and divide

100 times 75 divided by 15=500

5oo minutes in school
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A motel rents double rooms at $34 per day and single rooms at $27 per day. If 26 rooms were rented one day for a total of $807,
torisob [31]

Let, number of double rooms and single rooms are d and s.

d + s = 26     ....1 )

Hotel rents double rooms at $34 per day and single rooms at $27 per day.

34d + 27s = 807   ....2)

Solving equation 1 and 2, we get :

34( 26 - s ) + 27s = 807

884 - 34s + 27s = 807

7s = 77

s = 11

And d = 26 - 11 = 15

Therefore, number of double rooms and single rooms are 15 and 11.

Hence, this is the required solution.

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2 years ago
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Yuki888 [10]

Answer:

3. 26 problems left

4. $69.20

Step-by-step explanation:

1. First I divided 5 into 2 to get a decimal, 0.4, and then I multiplied 0.4 to 65.

0.4 x 65 = 26

2. It said that Luke paid 2.75 for himself and 6 other friends, which is 7 people. I then multiplied 2.75 x 7 and got 19.25. I then added 19.25 to the other amount of money, and got 69.20.

49.95 + 19.25 = 69.20

Hope this helps <3

8 0
2 years ago
Please!!!!<br> Solve<br> for m
blagie [28]

Answer:

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Step-by-step explanation:

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3 years ago
The domain of this function is {–2, 3}. What is the minimum value in the range of this function? F(x) = -2x + 5
LenKa [72]

Answer:

-1

Step-by-step explanation:

Range are the output functions f(x) for input functions x

Since the minimum input functions is -2, we are to find the output that gives the lowest value

Given

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Whn x = -2

F(-2) = 2(-2)+5

F(-2) = -4+5

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When x = 3

F(3) = -2(3)+5

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This shows that the minimum value function is -1

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3 years ago
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