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docker41 [41]
2 years ago
13

Solve the system by substitution.

Mathematics
2 answers:
mezya [45]2 years ago
8 0

Answer:

(2, 6)

Step-by-step explanation:

if you meant for both of the y to be the same then this should be right

Roman55 [17]2 years ago
8 0

Answer:

(2,6)

Step-by-step explanation:

*this is actually elimination*

1st- Turn both of them into standard form.

y=9x-12 ---> 9x-y=12

y=3x -->  3x-y=0

--

Multiply 9x-y=12 by -1

-9x+y=-12

3x-y=0

-6x=-12

divide by 6

x=2

--

Plug 2 into the first equation

9(2)-y=12

18-y=12

Cancel out 18 by subtracting -18 to both sides

-y=-6

divide by -1

y= 6

Answer: (2,6)

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Shane biked 1 mile than three times the number of miles lissette bike a total of 7 miles. Write an equation to determine how man
bagirrra123 [75]

Answer:

Equation : x + 1 + 3x = 7

Miles Lissette biked : 3/2 miles

Step-by-step explanation:

<em>Step 1: Determine the total number of miles biked.</em>

From my understanding. 7 miles is the total number of miles biked by both.

<em>Step 2: Assume the values</em>

Miles Lissette biked = x

Miles Shane biked = 1 + 3x

<em>Step 3: Add miles biked by Lissette and Shane which will be equal to total miles. </em>

Equation for miles Lissette biked: x + 1 + 3x = 7

4x + 1 = 7

x = 6/4

<em>Step 4: Simplify</em>

x = 6/4

x = 3/2

Therefore, the equation for miles Lissette biked is x + 1 + 3x = 7 and Lissete biked for 3/2 miles.

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6 0
2 years ago
A triangle with vertices at A(0, 0), B(0, 4), and C(6, 0) is dilated to yield a triangle with vertices at A′(0, 0), B′(0, 10), a
Temka [501]
K · ( 0, 0 ) = ( 0 , 0 )
k · ( 0 , 4 ) = ( 0 , 10 )
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8 0
3 years ago
Given the equation y = 3x − 4, what is the value of y when x = 4?
Marat540 [252]

Answer:

C) 8

Step-by-step explanation:

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y=12-4

y=8

5 0
3 years ago
Select the letter of the correct answer. Suppose Brandon played video games for 30 hours last week. If 5/6 of the hours were spe
Lady bird [3.3K]

Answer:

I think it would be 25 hours spent playing Mario cart

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3 years ago
What is the quotient of 2 1/5 ÷ 6 3/5 <br><br>A. 1/3<br><br>B. 3/4<br><br>C. 24/35<br><br>D. 2/3​
zepelin [54]

Answer:

A.1/3

Step-by-step explanation:

on the picture

if it's helpful ❤❤❤

THANK YOU.

7 0
2 years ago
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