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Andrew [12]
3 years ago
15

ILL GIVE BRAINIEST find the solption for each system of equations using substitution. check ur solution in both original equatio

ns and make sure equations are in slope intercept form before u set them equal
y= -2x+6 and y=3x-4


check:
Mathematics
1 answer:
Verizon [17]3 years ago
4 0

Answer:

X= 2

y = 2

Step-by-step explanation:

y=-2x+6............... equation 1

y=3x-4................... equation 2

from equation 2

y=3x-4

substitute y=3x-4 in equation 1

3x-4=-2x+6

collect like terms

3x+2x=6+4

5x=10

divide both sides by 5

X=2

substitute X=2 in equation 1

y=-2x+6

y=-2(2)+6

y=-4+6

y=2

hope it helps

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For which fraction pairs would it be useful to use the benchmarks 0, One-half, and 1 to compare? Check all that apply.
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Answer:

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Step-by-step explanation:

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8 0
3 years ago
If D is the midpoint of CE, CD= 9x-7, and DE= 3x+17, find CE
tatuchka [14]
Hello!

Since D is the midpoint and the two equations are and both sides of point D the equations equal each other

9x - 7 = 3x + 17

Now you solve it algebraically

Add 7 to both sides

9x = 3x + 24

Subtract 3x from both sides

6x = 24

Divide both sides by 6

x = 4

Now we put this into both equations and add them

9(4) - 7 = 29
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The answer is 58 units

Hope this helps!
3 0
2 years ago
Can someone give me the equation to all and the riddle.?!
valentinak56 [21]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
One sign lights up every 10 seconds. One sign lights up every 12 seconds. If they have just lit up at the same time, how many se
andrew11 [14]

Answer:

It will take 60 seconds for the signs to light up at the same time again.

Step-by-step explanation:

Given:

One sign lights up every 10 seconds

One sign lights up every 12 seconds

They have just lit up at the same time.

To find in how many seconds will it take for the signs to light up at the same time again.

Solution:

In order to find the time in seconds will it take for the signs to light up at the same time again, we need to find the least common multiple of the the times for which the given signs light up.

The numbers are 10 and 12.

To find the LCM, we will list the multiples of each and check the least common multiple.

The multiples of 10 and 12 are :

10\rightarrow 10,20,30,40,50,60,70

12\rightarrow 12,24,36,48,60

thus, we can see that 60 is the least common multiple.

Thus, the signs will light up at the same time time after every 60 seconds.

7 0
3 years ago
Find the difference. 4ab2 − 3ab2
snow_lady [41]
<span>4ab^2 − 3ab^2 = ab^2
combine like terms

help it helps</span>
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3 years ago
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