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yaroslaw [1]
4 years ago
13

Solve k(h-j)+h with h=5 ,j= -4, k=5

Mathematics
1 answer:
kifflom [539]4 years ago
5 0
They gave you an eqution with variables and then they gave you numbers that all you have to do is put in
k(h-j)+h
5(5-4)+5
5(1)+5
5+5
10
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John believes that the amount of sleep he gets the night before a test and his score on that test are inversely related. On his
siniylev [52]

Answer:

Step-by-step explanation:

ohn will need to sleep for 10.3 hours before his second exam so that the

he average of his two exam scores is an 80.

We were given

8 hours of sleep = 70

To get an average of 80

70+ x = 80

2

Cross multiply:

70+x = 160

x= 160-70

= 90.

If 8 hours of sleep = 70

x hours of sleep = 90

Cross multiply

8× 90 = 70 × x

720 = 70x

x = 720/70

x = 10.2857

≈ 10.3 hours of sleep

8 0
3 years ago
(2.01) solve -2(2x + 5) - 3 = -3(x - 1)
steposvetlana [31]
<span>solve -2(2x + 5) - 3 = -3(x - 1)

-4x - 10 -3  = -3x + 3
-4x - 13 = -3x + 3

Add 3x to both sides
-4x - 13 +3x = -3x +3

Simplify
-x - 13 = 3
Add 13 to both sides
-x - 13 + 13 = 3 + 13

Simplify 
-x = 16

multiply both sides by (-1) 
x = -16</span>
6 0
4 years ago
Read 2 more answers
Question 3 of 10
Serjik [45]

Answer:

<em>(D)</em>

Step-by-step explanation:

\frac{5(2x-3) -3(x+4)}{9} = \frac{10x-15-3x-12}{9} = \frac{7x-27}{9}

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3 years ago
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ICE Princess25 [194]

GIVE ME THE ANSWER!!!!!!!!!!!!!!!!!!

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3 years ago
Without solving this equation, what can you tell about the solution?0.1a=0.01a
Pachacha [2.7K]

Answer:

there is no solution

Step-by-step explanation:

theres no solution becuase its impossible for a to have 2 different values; you see that 0.1 and 0.01 are not equal, therefore a can not be equal,, otherwise the equation would be false

5 0
4 years ago
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