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Aneli [31]
3 years ago
12

Please help me in my Math quiz​

Mathematics
1 answer:
monitta3 years ago
5 0

Answer:

i am not helping you cheat you should now this

Step-by-step explanation:

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How many solutions are there to the following system of equations? 4x - 8y = 0. -3x + 8y = -7 A. 0. . B. 1. . C. 2. . D. infinit
valina [46]
I think the correct answer is option B. The system of equations given above will have only 1 solution. They will intersect only at 1 point when graphed in a x-y coordinate plane. Hope this answers the question. Please feel free to ask more questions.
6 0
4 years ago
A pair of equations is shown below.
7nadin3 [17]
3x − y = 9
y = −2x + 11

3x − (−2x + 11) = 9
3x + 2x - 11 = 9
5x = 9 + 11
5x = 20
x = 4

y = −2x + 11 = -2*4+11 = 3 

<span>(4, 3)</span>
4 0
3 years ago
Read 2 more answers
Jacob and Isaiah are brothers. Their combined ages are 63. Jacob is 7 years older than Isaiah. How old are each of the boys?
SVETLANKA909090 [29]
There are two unknowns in this problem. To start, let's assign variables to each of them. Let x be the age of Jacob and y be the age of Isaiah. Then, we formulate equations based on the relationships stated.

x = 7 + y   --> eqn 1
x + y = 63  --> eqn 2

Substituting eqn 1 to eqn 2, then solve for x and y:

(7+y)+y = 63
7 + 2y = 63
2y = 63 - 7
2y = 56
y = 56/2
y = 28
x = 28 + 7 = 35

Therefore, Jacob is 35 years old, and Isaiah is 28 years old.
3 0
4 years ago
Name all segments skew to GF.<br>D is the wrong answer.
bekas [8.4K]
I would go with A honestly...
6 0
4 years ago
First right answer gets brain
NikAS [45]
3. D-21
4.C-32
Sorry i couldnt see the answers to number 5
7 0
4 years ago
Read 2 more answers
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