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oee [108]
3 years ago
13

Simplify and then evaluate.

Mathematics
1 answer:
lozanna [386]3 years ago
4 0

Answer:

The simplified expression is -4x and the value is -516

Step-by-step explanation:

−12x+14x−6x

Combine like terms

2x-6x

-4x

Let x =129

-4*129

-516

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9. Jackie invited 17 people to
daser333 [38]

Answer:

  27

Step-by-step explanation:

17 - 8 = 9 people came

The number of presents brought is 3×9 = 27.

Jackie got 27 presents.

4 0
3 years ago
Write y =-0.4x + 0.3 in standard form using integers
Novay_Z [31]
Using the formula, rewrite in standard form.
0.4x + y = 0.3
Hope this helps! :)
5 0
3 years ago
What is y = 1.65x + 2.35 if x=14?
Andrej [43]

Answer:

y is 25.45

Step-by-step explanation:

y=1.65x+2.35 insert the unknown x

y=1.65(14)+2.35 open brackets by multiplication

y=23.1+2.35

y=25.45

5 0
2 years ago
A swimming pool holds 900 cubic meters of water. If its length is 20 meters and its height is 3 meters, find its width
rusak2 [61]
V=900m³

V=L*w*h

V=20*3*w
V=60*w

60*w=900

w=900/60
w=15m
5 0
2 years ago
Read 2 more answers
Diego and Jada are both trying to write an expression with fewer terms that is equivalent to
UkoKoshka [18]

Answer: Diego, 4a + 9b is equivalent

Step-by-step explanation:

7a + 5b - 3a + 4b

= (7a - 3a) + (5b + 4b)           We rerange the variables, and put them together with (), which make it more clear to solve.

= 4a + 9b

7 0
2 years ago
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