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Bas_tet [7]
4 years ago
8

Solve each system by substitution 4y - 6 = 2x y- 3x=9

Mathematics
2 answers:
ArbitrLikvidat [17]4 years ago
6 0
X = -3, y = 0 i think
Sliva [168]4 years ago
5 0

Answer:

your answer is -3,0

Step-by-step explanation:

if you wanna check you can plug it into the bottom equation y -3(-3) =9

so 9=9 which is a true statement

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If infinitely many values of y satisfy the equation 2(4+cy) = 12y+8, then what is the value of c?
Viktor [21]

Answer:

c = 6

Step-by-step explanation:

2(4 + cy) = 12y + 8

8 + 2cy = 12y + 8

12y + 8 = 8 + 2cy

12y - 2cy = 8 - 8

2y (6 - c) = 0

Divide through by 2y

(6 - c) = 0

c = 6

3 0
3 years ago
Read 2 more answers
Add 12 to me. Then add another 12. If you subtract 9 and then add 7, you get 24. What number am I?
tiny-mole [99]

Answer:

2

Step-by-step explanation:

x+12+12-9+7 = 24

x+22 = 24

x = 2

4 0
3 years ago
Find the area of a triangle formed by placing the vectors [3, 6] and [7, 1] tail-to-tail.
Usimov [2.4K]

Answer:

a. A=10u^{2}

b. View graph

c. 6.40u

Step-by-step explanation:

knowing that the triangle area is equal to base by heigh between two, then:

A=\frac{bh}{2}=\frac{5*4}{2}=10u^{2}

The length of the longest altitude of your triangle is:

c^{2}=a^{2}+b^{2}=5^{2}+4^{2}=25+16=41\\    c=\sqrt{41}=6.40u

finally it can be seen that the position of the triangle does not matter, as long as the base and heigh are maintained, the area of ​​the triangle will be the same

6 0
4 years ago
Describe which of the two points lies on the graph of the line<br> 2x+2y=6<br> A,-4,5<br> B,6-3
Margaret [11]
B. 6, -3

2(6) + 2(-3) = 6

12 - 6 = 6

True

hope this helps
5 0
3 years ago
Which number sentence does the following number line represent? I NEED THIS TO BE CORRECT AND I NEED THIS ASAP PLEASE GIVING 20
AfilCa [17]
The last one because it starts at -2 and is going back 6 places
6 0
3 years ago
Read 2 more answers
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