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Sloan [31]
3 years ago
15

(I really need help ASAP)

Mathematics
1 answer:
IrinaK [193]3 years ago
3 0

Answer:

a= 10     b=1

Step-by-step explanation:

I had the same question

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The school store sells 18 folders for $4.50. Select the three unit rates that describe this sale. $0.25 per folder , 4 folders p
max2010maxim [7]

Answer:

All of your choices are correct.

Step-by-step explanation:

4.50 ÷ 18 = .25 each

.25 x 4 = 1.00

.25 x 36 = 9.00

12 x .25 = 3.00

5 0
3 years ago
How many 2 inch segments are there in 12 ft
ollegr [7]
The correct answer for this question is that there are 72 2-inch segment in 12ft. Hopefully that answered your question for you!
5 0
4 years ago
An article in the Journal of Engineering Tribology discusses several experiments involving various lubricants. In one experiment
MrRa [10]

Answer:

the P value is 45.22%

Step-by-step explanation:

The computation of the P value is as follows;

Given that

standard deviation = 14.9

mean = 675

Reduction in diameter= 673.2

Based on the above information,

We have to applied the following formula i.e.

Z = \frac{x - \bar x}{\sigma} \\\\= \frac{673.2 - 675}{14.9}\\\\= -0.1208

Now the P value for -0.1208 is 0.4522 i.e. 45.22%

Hence, the P value is 45.22%

The same is to be considered

5 0
3 years ago
Sophia pays a $19.99 membership fee for an online music store. a. If she buys two songs at a price of $0.99 each, what is the to
drek231 [11]
First, how much were her songs? It's two songs each, and their separate prize was 0.99:

total prize was 2*0.99=1.98

this gets added to the membership prize:

19.99+1.98=21.97

you can also calculate this by rounding all the numbers (20+1+1) and substracting the amount you rounded (three times one cent) - the result would be the same.
8 0
4 years ago
What is the value of the expression?
FromTheMoon [43]

Step-by-step explanation:

15X - 4Y when X=7 Y=8

=15*(7) - 4*(8)

= 105 - 32

=73

8 0
3 years ago
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