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poizon [28]
2 years ago
9

4x − 8y = –20 4x − 7y = –15

Mathematics
1 answer:
Alja [10]2 years ago
8 0
Y = 5
x = 5
good luckkkkkkk
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Find the angle measure of PQR
sineoko [7]

Answer:

<em>64 degrees</em>

Step-by-step explanation:

When you have the SRQ angle, you can easily solve for PQR. Luckily, we're given that QRP and PRS are 32 and 84, respectively. Adding this together gives you 116. 116*2 = 232 and 360-232 = 128, and 128/2 = 64.

<em>Please Mark Brainliest if this helps!</em>

8 0
2 years ago
Christine has always been weak in mathematics. Based on her performance prior to the final exam in Calculus, there is a 40% chan
azamat

Answer:

There are a 25% probability that Christine fails the course.

Step-by-step explanation:

We have these following probabilities:

A 50% probability that Christine finds a tutor.

With a tutor, she has a 10% probability of failling.

A 50% probability that Christine does not find a tutor.

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Probability that she fails:

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P = 0.1*0.5 + 0.4*0.5 = 0.25

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6 0
3 years ago
The sale price of a laptop is R3 700,00, which is only 65% of the original price. Calculate the original price.​
Mandarinka [93]

The original price of a laptop that is 65% of the sales price is R3 1076923.07692

<h3>How to find the original price when given the percentage?</h3>

The sale price of a laptop is R3 700,00,which is only 65% of the original price.

Therefore,

let

x = original price

Hence,

700, 000 = 65% of x

700,000 = 65 / 100 of x

cross multiply

70000000 = 65x

divide both sides by 65

x = 70000000 / 65

x = 1076923.07692

Therefore, the original price of the laptop is R3 1076923.07692

learn more on original price here: brainly.com/question/13947216

#SPJ1

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1 year ago
Find the value of x in the triangle shown below ​
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x=70

Step-by-step explanation:

the angles opposite 3.5 equal 55 degrees

180-55-55=70

3 0
3 years ago
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To estimate the average annual expenses of students on books and class materials a sample of size 36 is taken. The sample mean i
rewona [7]

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its C i think

Step-by-step explanation:

6 0
3 years ago
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