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MArishka [77]
3 years ago
13

Alvin’s first step in solving the given system of equations is to multiply the first equation by 2 and the second equation by –3

. Which linear combination of Alvin’s system of equations reveals the number of solutions to the system?
9x + 4y = 36

6x + 2.5y = 24

Infinite solutions: 0x – 0y = 0
No solutions: 0x + 15.5y = 144
One solution: 0x + 0.5y = 0
Two solutions: 0x – 0.5y = 60
Mathematics
2 answers:
Ksivusya [100]3 years ago
4 0

Answer:

One solution: 0x + 0.5y = 0

Step-by-step explanation:

9x + 4y = 36

6x + 2.5y = 24

2 * Eq. 1

18x + 8y = 72

-3 * Eq. 2

-18x - 7.5y = -72

Add the multiples of the equations.

0x + 0.5y = 0

Answer: One solution: 0x + 0.5y = 0

navik [9.2K]3 years ago
3 0

Answer:

c

Step-by-step explanation:

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Shane earns $3 for completing a chore (c) and $2 for completeing his homework (h). In a week, he earns $24 by completing a total
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6*3+3*2

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3 years ago
Solve x: <br> 6 - 4x = -38<br> --Please help! This is homework due in for Monday! Xx
igomit [66]

Isolate the x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS (Parenthesis, Exponents (& roots), Multiplication, Division, Addition, Subtraction)

First, subtract 6 from both sides

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-4x = -38 - 6

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Next, fully isolate the x by dividing -4 from both sides

(-4x)/-4 = (-44)/-4

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3 years ago
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4 years ago
A rectangle has an area of 616 m² and a width of 22m. What is its length?
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Answer:

l=28m

w Width

22

m

A Area

616

m²

Using the formula

A=wl

Solving forl

l=A

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Answer:

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Step-by-step explanation:

We can use this formula:

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3 years ago
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