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Tanya [424]
2 years ago
7

Solve the system of equations:

Mathematics
2 answers:
yanalaym [24]2 years ago
5 0

Answer:

x + y = 9 \\ x + 2x = 9 \\ 3x = 9 \\ x =  \frac{9}{3}  \\ x = 3

pav-90 [236]2 years ago
3 0
The answer is y= 3 (:
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Find a number if: 3/7 of it is 2 1/4
Sergeeva-Olga [200]

Answer:

x=5 1/4

Step-by-step explanation:

2 1/4= \frac{9}{4}---> \frac{9}{4} divided by 3 to find 1/7x----> \frac{3}{4}=1/7x---> x=21/4---> x=5 1/4

8 0
3 years ago
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Use the Pythagorean identity to do the following:
nlexa [21]

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Step-by-step explanation:  In the expression

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2 - 2*sin³(θ) - √1 -sin²(θ)

7 0
3 years ago
Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. She also earns a base salary
11111nata11111 [884]

Answer:

She earned 1,076 dollars and 25 cents.

Step-by-step explanation:

x =  7.25 * 4,500 / 100

x = 7.25 * 45

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8 0
2 years ago
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5 0
2 years ago
Please help me
galben [10]

Answer:

A = 0.25*j + 1

Step-by-step explanation:

The question presented here is an application of linear models. The $1 amount is fixed and does not depend on any factor such as the cups of orange juice sold.

Furthermore, we are informed that we earn $0.25 for every cup of orange juice sold. This means that we shall earn 0.25 j by selling  j cups of orange juice.

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4 0
3 years ago
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