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VMariaS [17]
3 years ago
13

Solve the system by substitution. 3x + 2y = 15 y = 6x

Mathematics
2 answers:
olga2289 [7]3 years ago
8 0

Answer:

the answer should be (1,6)

Darya [45]3 years ago
5 0

Answer:

1

Step-by-step explanation:

3x +2 (6x) =15

3x +12x =15

15x =15

x = 15/15

x=1

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Vertical, Complementary and Linear Pair Angles help me please
Mariana [72]
I saw this same type of question and page but with different numbers just 5 minutes ago...

Anyway here’s the answers:
1) Complementary
3x+1+44=90
3x+45=90
3x=45
x=5
2) Vertical
Ignore everything about the work. The answer is 120 degrees because they’re vertical angles.
3) Supplementary
15x-5+110=180
15x+105=180
15x=75
x=5
And I can’t see the last question clearly
5 0
3 years ago
The graph below represents which system of inequalities?
attashe74 [19]

Answer:

y ≤ 2x -2 Option C.

Step-by-step explanation:

Equation of the dotted line which passes through (3,0) and (0,8) will be

y = mx+C

m = \frac{y-y'}{x-x'}=\frac{3-0}{0-3} = -1

and C = 3

So equation will be y = x + 3

But shaded blue part is above the dotted line so inequality will be y> -x +3

Equation of the second solid line which passes through ( 0,-2) and (1,0) will be

y = mx + C

m = \frac{y-y'}{x-x'} = \frac{0+2}{1-0} = 2

and C = -2

So equation of the line will be y = 2x - 2

But shaded yellow part is below the solid line.

So inequality will be

y ≤ 2x -2

Option C. is the answer.

5 0
3 years ago
Justine estimated that she would drive 24 miles to get to the beach. It is a good thing she had plenty of gas because she got lo
cupoosta [38]

Answer:

50%

Step-by-step explanation:

Actual value - estimated value

Actual value = 24 miles

Estimated value = 36 miles

Estimated value - Actual value

= 36 miles - 24 miles

= 12 miles

% error = change in value / actual value × 100

= 12/ 24 × 100

= 1/2 × 100

= 50%

% error = 50%

8 0
3 years ago
Zain bought ice cream and sherbet at the grocery store and is placing the containers in the freezer. The container of ice cream
lianna [129]

Answer:

102 in^3.

Step-by-step explanation:

Volume of the  ice cream container = 10*14*12 = 1680 in^3.

Volume of the  sherbet container = 11*18^9 = 1782 in^3.

So the answer is 1782 - 1680

= 102 in^3.

7 0
3 years ago
PLEASE HELP WITH THIS EQUATION!!! WILL GIVE BRAINLIEST AND RATING!!!!!!!
GuDViN [60]

Answer:

-8x+6

Step-by-step explanation:

we know that

The expression Subtract (5x-2) from (-3x+4) is equivalent to the algebraic equation

=(-3x+4)-(5x-2)

=-3x+4-5x+2

Group terms that contain the same variable

Combine like terms

=(-3x-5x)+(4+2)

=(-8x)+(6)

=-8x+6

3 0
3 years ago
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