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3 years ago

MATH HELP ME ASAP PLEASE

Mathematics

2 answers:

elena55 [62]3 years ago

8 0

Answer:

53lbs.

Step-by-step explanation:

If Kevin bought 3 20lbs. Bags of gravel he would have 60 lbs. of gravel. In the end he has 7 lbs. of gravel left he used 53 pounds.

Equations:

7+x=60 or 60-7=53 lbs.

motikmotik3 years ago

5 0

Answer:

3 pounds of gravel

Step-by-step explanation:

If you look at the chart, each bag of gravel is 20 lbs. If he bought 4 then that is 20 x 4. That equals 80. If he only used 77 pounds of it, then you get 80-77. That equals 3

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Is -8 - 2(3+2n)+7n equivalent to -30 - 13n

soldi70 [24.7K]

Answer:

The terms are not equivalent

Step-by-step explanation:

-8 - 2(3+2n)+7n

Distribute the 2

-8 -6-4n+7n

Combine like terms

-14 +3n

That is not equal to -30 -13n

The terms are not equivalent

4 0

3 years ago

Solve the system of equations. y=x+5 y=-x+7

spin [16.1K]

Answer:

(1,6)

x = 1, y = 6

See attachment for the graph

Step-by-step explanation:

y=x+5

y=-x+7

Using the elimination process

y=x+5

- y=-x+7

----------------

0=2x-2

2=2x

1=x

x=1

Substitute x = 1

y = x + 5

y = 1 + 5

y = 6

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3 years ago

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Minchanka [31]

Answer:

Step-by-step explanation:

7 0

3 years ago

If f ( x ) = 2x + 2 and g ( 1 ) = 3x – 1, find (f/g) (2)

schepotkina [342]

Answer:

6/5 or 1.2

Step-by-step explanation:

Given functions:

f (x) = 2x + 2
g (x) = 3x – 1

To find:

(f/g) (2)

Solution

(f/g)(x) = f(x)/g(x) = (2x + 2) / (3x - 1)
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