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Masja [62]
3 years ago
8

HALP ME PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS

Mathematics
1 answer:
Ne4ueva [31]3 years ago
4 0

Answer:

x = -\frac{1}{3}, y = 2

Step-by-step explanation:

3x + 3y - 7 = 12x + y

6y - 12x - 1 = -45x

(3x - 12x) + (3y - y) = 7

(-12x + 45x) + 6y = 1

-3(-9x + 2y = 7)

33x + 6y = 1

27x - 6y = -21

33x + 6y = 1

60x = -20 -> x = -20/60 = -1/3

-9x + 2y = 7 -> y = \frac{7+9x}{2} = \frac{7+9*-\frac{1}{3}}{2} = 2

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1 + y &lt; 25<br> 101 + 6y &gt; 200
vlada-n [284]

Step-by-step explanation:

i.1+y<25

y<25-1

y<24

ii.101+6y>200

6y>200−101

6y>99

y>99/6

y>33/2

5 0
3 years ago
If: \qquad AC = 64 AB = 7x + 8, and BC= 3x+6, Find BC
Nady [450]

The answer is 21.

First you Add both AB and BC which is 10x +14. Then you put 64 into the equation. 10x+14=64. Subtract 14 from 64 which is 50. So 10x=50. Then divide 10 from 50. which would be x=5. So if you plug it in. It would be 21.

4 0
3 years ago
What is the volume of the solid figure below? *
V125BC [204]

Answer:

im sorry i dont know

Step-by-step explanation:

7 0
3 years ago
A father is now two times as old as his son. Sixteen years ago he was 6 times as old
kramer

Answer:

40 years and 20 years

Step-by-step explanation:

Let the father's age be y and son's age x

Father is currently twice son's age i.e 2x

16 years ago, the son was (x-16) years old

the father was (y-16) or (2x-16) years old.........(i)

The second sentence states that the father was 6 times his sons age 16 years ago i.e 6(x-16)yrs old.............(ii)

Equating (i) to (II) gives 2x-16 = 6(x-16)

2x-16 = 6x-96

Collecting like terms, 96-16 = 6x-2x, 80 = 4x, x = 20

Therefore, son's age is 20years and fathers age is twice son's age = 40 years

3 0
2 years ago
Who is most likely to be in favor of protectionist policies? A. A government that wants to contain the cost of public services B
scoundrel [369]

Answer:

A. A government that wants to contain the cost of public services

Step-by-step explanation:

3 0
3 years ago
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