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Harman [31]
3 years ago
13

9 books are to be bought by a student. Some cost $6 and the remainder cost $3 each. if the total amount spent was $39, how many

of each are bought?
Please explain your answer.
Mathematics
1 answer:
MissTica3 years ago
6 0

Answer:

four nine dollar books

Step-by-step explanation:

36 divivded by 9

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What is the value of the expression below when x equals 5?<br><br> 16 + 10x
Inessa05 [86]

Answer:

66

Step-by-step explanation:

Plug in 5 for x

16 + 10(5)

16 + 50 = 66

3 0
3 years ago
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A tin of biscuits contains shortbread and choc-chip biscuits in the ratio 2:3 . The tin contains 80 biscuits. How many short-bre
Aleksandr [31]

Answer:

32

Step-by-step explanation:

There are 80 biscuits inside the tin.

Also, they said that those biscuits are in the ratio

Short bread    :      Choc - chip

          2          :        3

Altogether there are 5 shares ( 2 + 3)

And now you can divide 80 by 5 to find how many biscuits contain per a share.

80 ÷ 5 = 16

In the question, they asked us to to find the number of short biscuits inside the tin.

Let us find that.

There are 2 shares for short bread biscuits.

So,

Number of short biscuits ⇒ 2 × 16

                                         ⇒ 32

Hope this helps you :-)

5 0
3 years ago
Quantity (Bottles of Cleanser) Cost
seraphim [82]

Answer:

D. 8 bottles

Step-by-step explanation:

one bottle of one is obviously $6.50

one bottle of two : $12.50 (1/2) = $6.25

one bottle of four: $26.00 (1/4) = $6.50

one bottle of six: $30.00 (1/6) = $5.00

one bottle of eight: $38.00 (1/8) = $4.75

8 bottles is the best buy

3 0
3 years ago
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If a sample size is less than​ ________, the sample size must come from a population having a normal distribution in order to fo
salantis [7]
My guess is 30 for the sample size.
8 0
3 years ago
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Slope = 5/2 y-intercept = 0
My name is Ann [436]
So its this answer because the y is equal to the x plus the y-intercept but the y is 0 so; y=5/2x
7 0
3 years ago
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