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Daniel [21]
3 years ago
6

Which expression is equivalent to 4 – (-7) a 7+ 4 b 4 - 7 c-7 - 4 d -4 + 7

Mathematics
2 answers:
bekas [8.4K]3 years ago
8 0

Answer:

a

Step-by-step explanation:

4 + 7 = 11. subtracting a negative number is the same as adding

amid [387]3 years ago
6 0

Answer:

A. 7 +4

Step-by-step explanation:

4 -( - 7 )

4 + 7

7 + 4

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Solve for x 7(3-x) = 8(4-2x)
Damm [24]

Answer:

  x = 11/9

Step-by-step explanation:

Eliminate parentheses, add 16x, subtract 21.

  7(3 -x) = 8(4 -2x) . . . . given

  21 -7x = 32 -16x . . . . . eliminate parentheses using the distributive property

  9x +21 = 32 . . . . . . . . add 16x

  9x = 11 . . . . . . . . . . . . subtract 21

  x = 11/9 . . . . . . . . . . . .divide by the coefficient of x

7 0
3 years ago
I need a Tutor and Help with this question
valkas [14]

Answer:

x=31

y=6

Step-by-step explanation:

2x+3y=80

x+y=37

solve by elimination:( multiply second equation by 2) to eliminate x

2x+3y=80

2x+2y=74

subtract the two equations:

2x+3y-(3x+2y)=80-74

2x+3y-3x-2y=6

y=6 (3 point basket)

substitute: x+y=37, x=37-6=31

x=31 (2 point shot)

4 0
3 years ago
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You and six friends play a game or each person writes down his or her name on a scrap of paper and then the names are randomly d
Nostrana [21]

1 on 7 is the answer!

4 0
3 years ago
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Find a101 of the sequence 5,8,11,
guajiro [1.7K]

Answer:

305

Step-by-step explanation:

This sequence es the sum of 3

5+3 =8

8+3 = 11

then

101 = 100 + 1

the fisrt date is 5

the another 100:

100*3 = 300

300 + 5 = 305

3 0
3 years ago
Seven pounds of grapes cost $10.43 how much would it cost for 3 pounds
lozanna [386]
1. Divide $10.43 by 7 to find out how much each pound of grapes costs.
$10.43/7=$1.49
2. Multiply $1.49 by 3 to find out how much 3 pounds of grapes would cost.
$1.49•3=$4.47
3. So, 3 pounds of grapes would cost $4.47

Hope this helps!
4 0
3 years ago
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