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Semmy [17]
3 years ago
6

Evaluate 3a-2b when a =-4 and b=-1

Mathematics
1 answer:
TEA [102]3 years ago
7 0
Just plug in answers... its -12--2 which becomes -12+2 and you get
10
Hope this helps you!!!
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4 years ago
A piece of ribbon that is 8 and 1/3 yards long will be cut into 5 equal pieces to make bows. How much ribbon will be used foe ea
TiliK225 [7]

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Step-by-step explanation:

6 0
3 years ago
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The radii of the planets in the solar system are given. Arrange the planets in increasing order by the lengths of their radii.
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Answer:

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4 0
4 years ago
Solve the system of linear equations: 1/5 x + 1/8 y = 1 1/2 x − 1/3 y = 1
Alchen [17]

Answer:

x = 75 and y = -72

Step-by-step explanation:

It is given that,

1/5 x + 1/8 y = 1   ------(1)

1/2 x − 1/3 y = 1  -------(2)

<u>To find the solutions of the system of equations</u>

Step 1: eq(1) * 5 ⇒

x + 5/8y = 5  ----(3)

Step 2:  eq(2) * 2 ⇒

x - 2/3y = 2  -----(4)

Step 3: eq(3) - eq(4) ⇒

x + 5/8y = 5  ----(3)

<u>x - 2/3y = 2  -</u>----(4)

0 +(5/8 - 2/3)y = 3

 -1/24 y = 3

y = -24*3 = -72

Step 4: Substitute the value of y in eq(1)

1/5 x + 1/8 y = 1   ------(1)

1/5 x + 1/8 (-72) = 1   ------(1)

1/5 x  - 24 = 1

1/5 x = 25

x = 5*25 = 75

Therefor x = 75 and y = -72

4 0
3 years ago
Read 2 more answers
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