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schepotkina [342]
3 years ago
13

Using elimination.

Mathematics
1 answer:
Svet_ta [14]3 years ago
8 0

Answer: x=2 y=1

Step-by-step explanation:

11x = 22

x = 2

5*2-2y=8

10-2y=8

10-8=2y

y=1

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3 years ago
An angle measures 64.8° less than the measure of its complementary angle. What is the measure of each angle?
kirill115 [55]

Answer:

<u>77.4 degrees and 12.6 degrees</u>

Step-by-step explanation:

Let the angles be x and x - 64.8.

Therefore, on the basis of knowledge that complementary angles add up to 90 degrees :

x + x - 64.8 = 90

2x = 154.8

x =  <u>77.4 degrees</u>

x - 64.8 = 77.4 - 64.8 = <u>12.6 degrees</u>

5 0
2 years ago
The weight of an object on the moon varies directly with its weight on the earth. If an object weighing 95 lbs on the moon weigh
Luda [366]
ANSWER

450lb

EXPLANATION

If the weight, m of an object on the moon varies directly as the weight of an object e, on the earth, then we can write the mathematical statement,.
m \propto \: e
We introduce the constant of proportionality to obtain,

m = ke

When, m=95, e=570,

This implies that,

95 = 570k
k = \frac{95}{570}

k = \frac{1}{6}

The equation now becomes,

m = \frac{1}{6} e

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m = \frac{1}{6} \times 2700

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8 0
3 years ago
The school store has 1200 pencils in stock and sells an average of 25 pencils per day. The manager reorders when the the number
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(1200÷25) ÷ans= days

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Answer:

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Step-by-step explanation:

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