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Aneli [31]
2 years ago
12

Need help combining like terms

Mathematics
1 answer:
yaroslaw [1]2 years ago
7 0

Answer:

-10x+7.5

Step-by-step explanation:

-2.5(4x-3)

Multiply each term by -2.5

-2.5 * 4x = -10x

-2.5 * 3 = 7.5

-10x + 7.5

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Which polynomial does this group of times represent
rodikova [14]
The group of tiles represent answer A. There are 6 x² tiles, 3 x tiles, and 1 tile.
4 0
3 years ago
Read 2 more answers
Write an equation for the description.<br> A number x increased by 12 is 120.
Korvikt [17]

Answer:

x+12=120

Step-by-step explanation:

7 0
3 years ago
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Courtney walks 1 mph slower than Brandi does. In the time that it takes Brandi to walk 6.5 mi, Courtney walks 5 mi. Find the spe
posledela

Answer:

Courtney's walking speed = 3.33mph

Brandi's walking speed = 4.33 mph

Step-by-step explanation:

Let x = Courtney's walking speed

then

(x + 1) = Brandi's walking speed

:

Time = Distance/speed

Brandi walks 6.5 mi time = Courtney walks 5 mi time

6.5/x + 1 = 5/x

Cross multiply

6.5x= 5(x+1)

6.5x= 5x + 5

6.5x - 5x = 5

1.5x = 5

x = 5/1.5

x = 3.33 mph is Courtney's walking speed

Note that:

(x + 1) = Brandi's walking speed

3.33mph + 1 = 4.33mph

Therefore,

Courtney's walking speed = 3.33mph

Brandi's walking speed = 4.33 mph

4 0
2 years ago
Write an equivalent expression to24X +18-12 using distributive property
andrey2020 [161]

Answer:

24x - 103

Step-by-step explanation:

calculate 24x +18- 121

5 0
2 years ago
I'm stuck. what do i do next??
Aneli [31]
Here is your solution,
(-5)^2 - √25 - 4 x (-14)/2
25 - √ 25 + 56/2
25 - √81/2
(25 - 9)/2 = 16/2 = 8

or
25 + √25 +56/2
25 + √81/2
(25 + 9)/2 = 34/2 = 17

So m = 8,17
6 0
3 years ago
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