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3 years ago

HELP!! Simplify 12+3(8+x)

2 answers:

8 0

12+3(8+x)
Distribute 3 to what’s inside the parentheses
12 + (3•8)+(3•x)
12 + 24 + 3x
Combine similar terms
36 + 3x is the answer

cestrela7 [59]3 years ago

3 0

Answer:

Step-by-step explanation:

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One day a store sold 29 sweatshirts. white ones cost $11.95 and yellow ones cost $11.50. in all, $338.90 worth of sweatshirts we

abruzzese [7]

A) W + Y = 29
B) 11.95 W + 11.50 Y = 338.90

Multiply equation A by -11.5
A) -11.5 W + -11.50Y = -333.50 then add to B)
B) 11.95 W + 11.50 Y = 338.90

.45 W = 5.4
W = 12 and so
Y = 17

3 0

3 years ago

A red horse and a black horse raced on a 1-mile-long circular racetrack. The red horse completed the race in 120 seconds, and th

galben [10]

Answer: The speed of red horse = 44 feet per second and the speed of black horse = 35.2 feet per second.

Step-by-step explanation:

Given: A red horse and a black horse raced on a 1-mile-long circular racetrack.

Time taken by red horse = 120 seconds

Time taken by black horse = 150 seconds

Speed = $\dfrac{Distance}{Time}$

So, speed of red horse = $\dfrac{1}{120}\text{ mile per second}$

Since 1 mile = 5280 feet

Speed of red horse = $\dfrac{5280}{120} =44\text{ feet per second}$

Similarly,

Speed of black horse = $\dfrac{5280}{150} =35.2\text{ feet per second}$

Hence, the speed of red horse = 44 feet per second and the speed of black horse = 35.2 feet per second.

5 0

3 years ago

If 1" = 2.5' then how many feet is 3.75"=

Gnesinka [82]

1" = 2.5'
2.5'(3.75") = 9.375'

3.75" = 9.375'

For every inch is 2.5ft
1 - 2.5 ft
2 - 5 ft
3 - 7.5 ft
.75' - 0.625 ft
7.5' + 0.625' = 9.375"

5 0

3 years ago

Which expressions are equivalent to 12 - 14/3m + 2/3m ?

yawa3891 [41]

ANSWER

The correct answers are option B and D.

$12 - 4m$

EXPLANATION

The given expression is

$12 - \frac{14}{3} m + \frac{2}{3}m$

We need to simplify the above expression in order to determine the option that is equivalent to it.

The least common denominator for the last two fractions is 3.

This implies that,

$= 12 + \frac{ - 14m + 2m}{3}$
We simplify to obtain,

$= 12 + \frac{ - 12m}{3}$

This further simplifies to give us,

$12 - 4m$

This is option B.

When we further factor -4, we get,

$-4(m-3)$

This is option D.

6 0

3 years ago

50 POINTS!

TiliK225 [7]

Answer:

the one with the blue dot is correct.

Step-by-step explanation:

because when you dilate the triangle you increase it and in this case if you do it ABC ~ADE

4 0

3 years ago