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3 years ago

Solve for x given the equation x-5+7=11

Mathematics

1 answer:

Alexeev081 [22]3 years ago

7 0

Answer:

Step-by-step explanation:

x-5+7=11

First think of what +7 = 11 then subtract by 5

check :)

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A rectangular prism has the following dimensions. H=11 meters, L=8 meters, 1 point

katovenus [111]

Answer:

264

Step-by-step explanation:

l*w*h= 8*11*3= 264

7 0

3 years ago

Jane had 275 stickers, which she gave to her friends. Each friend got five more stickers than the friend before. If the first fr

Paha777 [63]

Answer:

10 friends

Step-by-step explanation:

we know that

The formula of the sum is equal to

$sum=\frac{n}{2}[2a1+(n-1)d]$

where

a1 is the first term

n is the number of terms (number of friends)

d is the common difference in the arithmetic sequence

In this problem we have

$sum=275\ stickers$

$a1=5\ stickers$

$d=5$ ----> the common difference

substitute in the formula and solve for n

$275=\frac{n}{2}[2(5)+(n-1)(5)]$

$550=n[10+5n-5]\\ \\550=10n+5n^{2} -5n\\ \\5n^{2}+5n-550=0$

Solve the quadratic equation by graphing

The solution is n=10

see the attached figure

therefore

She had 10 friends who got stickers

5 0

2 years ago

Find m abc (2x+14) (x+7)

alina1380 [7]

M equals 3x+21 because you add 2x+1x=3x.then you add 14+7=21.then you combine them together to get 3x+21

3 0

2 years ago

Select the correct solution set.

Ksju [112]

Answer:

{x | x ≤ -8}

Step-by-step explanation:

-7x ≥ 56

Divide each side by -7, remembering to flip the inequality since we are dividing by a negative

-7x/-7 ≤ 56/-7

x ≤ -8

4 0

2 years ago

Read 2 more answers

Which is bigger 18,000 lbs or 9 T? OR are they the same?

Elodia [21]

1 ton is 2,000 lbs

9 x 2,000 = 18,000

So, 18,000 is equal to 9 tons.

Hope this helps. :)

5 0

2 years ago