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Arada [10]
3 years ago
10

Rewrite 20 = 8x + 4r

Mathematics
1 answer:
3241004551 [841]3 years ago
4 0

Answer:

Step-by-step explanation:

20 = 8x + 4r can be rewritten in multiple ways.

1.  Reduce the coefficients:  5 = 2x + r

or

2.  Solve for r:  r = 5 - 2x

or

                                 5 - r

3.  Solve for x:  x = -----------

                                    2

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Lincoln has 16 pins in one box and 17 pins in another box. He is hanging posters with the pins. Lincoln uses 4 pins to hang each
frez [133]

Answer: 8 posters

Step-by-step explanation:

From the question, we are informed that Lincoln has 16 pins in one box and 17 pins in another box and that he uses 4 pins to hang each posters posted. The total number of posters he can hang with the pins goes thus:

We should first calculate the total number of pins he has.

= 16 + 17 = 33 pins

Since he uses 4 pins to hang a poster, we then divide 33 pins by 4.

= 33 ÷ 4

= 8.25

This means that he can hang 8 posters with the pin

8 0
3 years ago
Marley has 382.57 dollars. For every 30 seconds, she gains 0.04 extra. How much money will Marley have after an hour? How much w
hodyreva [135]
So 0.04 times 3600 (that’s how many seconds are in a hour) =144 then to get it after 24 hour you times 144 by 24=3,456
7 0
3 years ago
Read 2 more answers
What is 5/255 by simplify?
zaharov [31]


5/255 = 1/51

Just divide numerator and denominator by the same number. In this case I divided by 5.

Hope this helps. :)

6 0
3 years ago
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Ming-Li spent $15 at the movies. She than earned $30 babysitting. She spent $12 at the bookstore. She now has $18 left. How much
djyliett [7]
You have to add 15+30+12+18...
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7 0
3 years ago
A one­sided test of a hypothesis, based on a sample of size 9, yields a P­value of .035. Which of the following best describes t
anyanavicka [17]

Answer:

1.86 < t < 2.31

Step-by-step explanation:

given that a one­sided test of a hypothesis, based on a sample of size 9, yields a P­value of .035.

Since one tailed test we have one side shaded rejection region

Sample size = 9

Degree of freedom = 9-1 =8

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The interval containing this is only

1.86<t<2.31

Hence the best choice for possible range of t values that yields this p value is

1.86 < t < 2.31

3 0
3 years ago
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