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algol13
2 years ago
5

Solving systems of equations using substitution y=7 3x-3y=-18

Mathematics
1 answer:
oksano4ka [1.4K]2 years ago
5 0

Answer:

x = 1

Step-by-step explanation:

If you have any questions feel free to ask in the comments

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y=8-4x

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Marisol has 486 square inches of wrapping paper
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Read 2 more answers
A. 1 and 8 <br> B. 4 and 6<br> C. 5 and 6<br> D. 1 and 7 <br> Please tell me why
andre [41]
1 and 7 because they have the same angles

6 0
3 years ago
Pls help soon:)
Tanzania [10]
Correct answers are:
(1) <span>28, 141 known cases
(2) 79913.71 known cases after six weeks (round off according to the options given)
(3) After approx. 9 weeks (9.0142 in decimal)

Explanations:
(1) Put x = 0 in given equation
</span><span>y= 28, 141 (1.19)^x
</span><span>y= 28, 141 (1.19)^(0)
</span>y= 28, 141


(2) Put x = 6 in the given equation:
<span>y= 28, 141 (1.19)^x
</span><span>y= 28, 141 (1.19)^(6)
</span>y= 79913.71

(3) Since
y= 28, 141 (1.19)^x
And y = <span>135,000

</span>135,000 = 28, 141 (1.19)^x
135,000/28, 141 = (1.19)^x

taking "ln" on both sides:
ln(4.797) = ln(1.19)^x

ln(4.797) = xln(1.19)
x = 9.0142 (in weeks)

5 0
3 years ago
Joseph is forming a three-dimensional figure using a net. The figure has six congruent square faces. What types of figure did he
jek_recluse [69]
I think it would b a cube.

hope it helped!! ;)
8 0
3 years ago
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