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Zepler [3.9K]
3 years ago
10

Help please its hard​

Mathematics
1 answer:
Gwar [14]3 years ago
5 0

Answer:

11

Step-by-step explanation:

Rewrite expression using given information:

20 - 3a + 2b = 20 - 3*7 + 2*6

20 - 21 + 12 = 11

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valentina_108 [34]
I believe it would fit 16 dvds
4 0
3 years ago
Let f(x)=4+3x and g(x)=x^2-3. find each function value: (f+g)(-4)
dem82 [27]

Answer:

43

Step-by-step explanation:

You are going to want to substitute the x of the function f(x) with the function of g(x) and replace the x in g(x) with -4

(f+g)(-4) = 4+3((-4)^2-3)

=43

hope this helped!

4 0
3 years ago
Read 2 more answers
Could you please answer this question?
Juli2301 [7.4K]

Answer:

.

Step-by-step explanation:

3x - y = 17 .......A

10 × [x/5 + y/2] = 10 × 0

2x + 5y = 0 .......B

......A× 5 both 2 sides of equation

15x - 5y = 85 .....C

......B + ........C

2x + 15x = 0 + 85

17x = 85

x = 85/17

x = 5

put x value in ........A or .......B or ......C

you will receive y = -2

5 0
3 years ago
Read 2 more answers
Look at the photo and solve plz
Sergeeva-Olga [200]

Answer:

q=26

Step-by-step explanation:

Isolate q:

52=2q

26=q

4 0
3 years ago
João comprou uma TV por R$ 2 400,00; um celular por R$ 1 325,00 e um tênis por R$ 130,00, qual o valor total da compra?
charle [14.2K]

Answer:

R $ 3855

Step-by-step explanation:

João comprou uma TV por R $ 2400,00; um celular por R $ 1350,00 e um tênis por R $ 130,00 qual o valor total da compra?

O preço total de compra é calculado como:

Custo da TV + Custo do Celular + Custo do Tênis

R $ 2400,00 + R $ 1350,00 + R $ 130,00,

= R $ 3855

3 0
3 years ago
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