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Mazyrski [523]
2 years ago
5

I need help with problem 27

Mathematics
1 answer:
forsale [732]2 years ago
3 0

Answer:

0+7-4=3

Step-by-step explanation:

They started with none, hence the 0. "Gained" typically means addition, so you add seven. "Lost" is a signal word for subtraction, so subtract zero. It comes out to 4.

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I need to replace the carpet for my bedroom floor and the supplier wants to
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Answer:

D. 120 square feet

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
Which of the following is a correct interpretation of the expression -7- (-11)?
Brilliant_brown [7]

Answer:

B. Start at -7 on the number line and move 11 to the right.

Step-by-step explanation:

<u>Given:</u>

  • - 7 - (-11) expression

We can add or remove only positive numbers on the number line to get it  correct, so we need to open the parenthesis. When evaluated we get:

-7- (-11) = - 7 + 11 = 4

<u>Correct interpretation of of this expression is:</u>

  • Start at -7 and add 11, thus move 11 points to the right, to get 4 as final point.

<u>Correct choice is:</u>

  • B. Start at -7 on the number line and move 11 to the right.

6 0
3 years ago
Solve, using the substitution method.
ss7ja [257]

Answer:

(-6,-5)

Step-by-step explanation:

X+y=-11

solve for x

x=-11-y

substiute x value into 2nd equation

2x-3y=3

2(-11-y)-3y=3

-22-2y-3y=3

-5y=25

y=-5

substitute -5 for y in either equation to find x

x+y=-11

x+-5=-11

x=-6

8 0
2 years ago
(57 – 42) X-3 – 21<br><br> Help me out please
SpyIntel [72]

Answer:

1065

Step-by-step explanation:

57-42×-3-21

7 0
3 years ago
How many sides does the covered polygon have?
andrezito [222]
5 sides and 3 angles.
6 0
3 years ago
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