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mixer [17]
2 years ago
9

PLS HELP QUICK!!!

Mathematics
2 answers:
Trava [24]2 years ago
8 0

Answer:

The answer is (5,4)

Step-by-step explanation:

AleksandrR [38]2 years ago
3 0
<h3>Answer:  Choice B.   (5, 4)</h3>

===========================================================

Explanation:

Note the matching 4y terms in each equation. The top 4y adds with the -4y down below to get 4y+(-4y) = 0y = 0. This tells us that the y terms go away entirely.

The x terms add to 3x+2x = 5x

The constants on the right hand sides add to 31+(-6) = 25

After adding the equations straight down, we end up with this new equation of 5x = 25

Dividing both sides by 5 leads to x = 5

The answer so far is between B and D.

----------------------------

Let's use this x value to find y

Plugging x = 5 into the first equation leads to...

3x+4y = 31

3(5) + 4y = 31

15 + 4y = 31

4y = 31-15

4y = 16

y = 16/4

y = 4

Or you could use the second equation

2x - 4y = -6

2(5) - 4y = -6

10 - 4y = -6

-4y = -6-10

-4y = -16

y = -16/(-4)

y = 4

Either way, we get the same y value when x = 5.

So x = 5 and y = 4 pair up together.

Overall, the solution is (x,y) = (5, 4)

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I NEED HELP PLEASE, THANKS
castortr0y [4]

First, find the scale factor.

8.4 / 7 = 1.2

9 / 7.5 = 1.2

7.2 / 6 = 1.2

Since both solids are different sizes, the solids aren't congruent.

The size ratio for all the sides are:

8.4:7

9:7.5

7.2:6

Since the scale factor isn't 1:1 this also proves that the solids are NOT congruent.

Since both solids are the same kind of shape and have an identical scale factor, the solids are similar.

Best of Luck!

5 0
3 years ago
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zvonat [6]
10x+18 is your answer
7 0
2 years ago
The ratio of legs to dogs in the cat shelter was 4 to 1. If there were 8 cats , then how many cats were there?
andrezito [222]

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Step-by-step explanation:

3 0
1 year ago
What postulate would you use to solve this triangle<br> congruence?<br> SAS<br> AAS<br> ASA<br> SSS
zavuch27 [327]
Im doing something similar to this you wanna help each other out?
4 0
2 years ago
Read 2 more answers
Find x from given equations sin30 + 2 cot^2 30 + x cos^2 30= 8+ tan^2 45 + cos 60​
julia-pushkina [17]

Answer

1/2+2×(sqrt3)^2+x.(sqrt3/2)^2=8+1^2+1/2

1/2+2×3+x.3/4=8+1+1/2

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x.3=12

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x=4.

so, the value of x is 4.

hope it helps you.

4 0
3 years ago
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