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nikklg [1K]
3 years ago
15

Question 5 on the attachment

Mathematics
1 answer:
Rudik [331]3 years ago
7 0
7 1/2 cm.
1.5+2.5+3.5=7.5
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What is the solution to the system of equations?
Lemur [1.5K]
I would plug in each of the solutions to every equation and see which one works. This is probably easier than solving for x, y, and z. But let me know if you would like me to run through the steps!

First choice: using the first equation, -3(-3)-4(4)+6=-19 not -1 as listed. False.

Second choice: using the first equation, -3(4)-4(-3)+(-1)=-1 ; using the second equation, 2(4)+(-3)-(-1)=6 not -8 as listed. False.

Third choice: using the first equation, -3(-3)-4(4)+8=-17 not -1 as listed. False.

Fourth choice: using the first equation, -3(3)-4(-4)+-(-6)=-1 ; using the second equation,
2(3)+(-4)-(-6)=8 ; using the third equation, 3+8(-4)-(-6)=23

So the answer should be the fourth choice. Hope this helps! :)




4 0
4 years ago
Sally had medical testing and discovered that her white blood cell count is lower than normal. Which of Sally′s body systems are
Sloan [31]

Answer:

C

Step-by-step explanation:

its also in the lymphatic system.

4 0
3 years ago
Help please !!
svet-max [94.6K]

Answer:

MH=27

Step-by-step explanation:

Since the two triangles are similar;

\frac{MH}{KP}=\frac{IH}{LK}

This implies that;

\frac{MH}{18}=\frac{36}{24}

Multiply both sides by 18

\Rightarrow MH=\frac{36}{24}\times 18

\Rightarrow MH=27

7 0
3 years ago
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Simplify the following expression: (12x – 7) + (7x + 9)
Natasha2012 [34]

Answer:

D.

Step-by-step explanation:

12x + 7x = 19x

-7 + +9 = 2

5 0
3 years ago
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Elena solved the equation 2(x – 9) = 10 In the<br> following way. What mistake did she make?
bezimeni [28]

Answer: Subtract 18 on both sides is wrong. Its supposed to be add 18 on both sides.

Step-by-step explanation:

4 0
3 years ago
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