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3 years ago

Evaluate 3-(5-10)-7+1-6

Mathematics

1 answer:

Sedaia [141]3 years ago

7 0

Answer:

$- 4$

Step-by-step explanation:

1) Simplify 5 - 10 to -5.

$3 - ( - 5) - 7 + 1 - 6$

2) Remove parentheses.

$3 + 5 - 7 + 1 - 6$

3) Simplify 3 + 5 to 8.

$8 - 7 + 1 - 6$

4) Simplify 8 - 7 to 1.

$1 + 1 - 6$

5) Simplify 1 + 2 to 2.

$2 - 6$

6) Simplify.

$- 4$

Therefor, the answer is -4.

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-(-10x-8)=-(4x+10) A)-4 B)-2 C)-3 D)3 show work

Eva8 [605]

Answer:

<h3> None of given </h3><h3> x = -1²/₇ </h3>

Step-by-step explanation:

-(-10x - 8) = -(4x + 10)

10x + 8 = -4x - 10

-8 -8

10x = -4x - 18

+4x +4x

14x = -18

÷14 ÷14

x = -¹⁸/₁₄ = -⁹/₇ = -1²/₇

I think you meant -(10x-8)=-(4x+10)

Then:

-(10x - 8) = -(4x + 10)

-10x + 8 = -4x - 10

-8 -8

-10x = -4x - 18

+4x +4x

-6x = -18

÷(-6) ÷(-6)

4 0

3 years ago

The length of a rectangle is 8 feet longer than the width. If the perimeter is 80 feet, find the length and width of the rectang

Klio2033 [76]

perimeter = 2L + 2W

L=8+w

perimeter = 2(8+w) +2w

80 =16+2w+2w

80 = 16 +4w

64 =4w

w=64/4 = 16

l=16+8 =24

length = 24 feet

width = 16 feet

check 2(24) +2(16) = 48 + 32 = 80

7 0

3 years ago

3) Three times the sum of four and a number is twice the number.

Anna11 [10]

Answer:

3(4+n)=2n

Hope this helps

4 0

3 years ago

Kim bought a poster that cost $8.95 and a ome colored pencils.The total cost was $21.35.How much did the colored pencils cost?

Dafna11 [192]

If the total cost was 21.35, and the poster cost 8.95, then all you need to do is subtract to poster cost from the total cost to find the cost of the pencil.
21.35-8.95= $12.40

8 0

3 years ago

Read 2 more answers

a total of 582 tickets were sold for the school play. they were with adult tickets or student tickets. there were 68 fewer stude

topjm [15]

Answer:

$257$ adult tickets

Step-by-step explanation:

Let x be the total sold adult ticket.

Given:

Total 582 tickets were sold.

There were 68 fewer student tickets sold than adult tickets

Then there were $x-68$ students.

So, The total sold ticket equation is

$x+(x-68)=582$

$2x-68=582$

$2x=582-68$

$x=\frac{514}{2}$

$x=257$

Therefore, 257 adult tickets were sold

8 0

3 years ago