3 years ago

Find the solution of this system of equations -X + 8y = -35 -X - 9y = 50

Mathematics

2 answers:

grigory [225]3 years ago

7 0

Answer: (-5,-5)

Step-by-step explanation: The two lines meet up at (-5,-5)

lesya [120]3 years ago

6 0

Answer:

y = 5

x= 75 ( not confident about x)

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James invested $4,000 at 5% interest per year; how long will it take him to earn $200 in simple interest?

tester [92]

Answer:

It takes 1 year.

Step-by-step explanation:

You have to apply simple interest formula, I = (P×R×T)/100 where I represent interest amount, P is principle, R is interest rate and T is number of years :

$I = \frac{PRT}{100}$

$200 = \frac{4000 \times 5 \times T}{100}$

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3 0

3 years ago

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2y = x + 3 5y = x - 7 What is the solution set of the given system?

prohojiy [21]

<span>2y = x + 3 then x = 2y - 3
5y = x - 7 then x = 5y + 7

so
</span>2y - 3 = 5y + 7
2y - 5y = 7 + 3
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y = -10/3
y = -3 1/3

<span>2y = x + 3
</span>2 (-10/3) = x + 3
-20/3 - 3 =x
-29/3 = x
-9 2/3 =x
or
x = -9 2/3

solutions: x = -9 2/3 and y = -3 1/3

5 0

3 years ago

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What is the approximate area of the shaded sector in the circle shown below?

stich3 [128]

Answer: 26.5cm2

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4 years ago

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Tems11 [23]

Answer: