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2 years ago

Find the value of x

Mathematics

1 answer:

balu736 [363]2 years ago

3 0

Answer:

x = 4

Step-by-step explanation:

This is an isosceles triangle since the base angles are congruent.

If we know it's an isosceles triangle then we know that the legs of it are congruent.

9x - 8 = 28

9x = 36

x = 4

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out of some students appeared in an examination 80% passed in mathematics 75% passed in english and 5% failed in both subjects i

Advocard [28]

Answer:

5000 students appeared in the examination.

Step-by-step explanation:

We solve this question using Venn probabilities.

I am going to say that:

Event A: Passed in Mathematics

Event B: Passed in English.

5% failed in both subjects

This means that 100 - 5 = 95% pass in at least one, which means that $P(A \cup B) = 0.95$

80% passed in mathematics 75% passed in english

This means that $P(A) = 0.8, P(B) = 0.75$

Proportion who passed in both:

$P(A \cap B) = P(A) + P(B) - P(A \cup B)$

Considering the values we have for this problem

$P(A \cap B) = P(A) + P(B) - P(A \cup B) = 0.8 + 0.75 - 0.95 = 0.6$

3000 of them were passed both subjects how many students appeared in the examination?

3000 is 60% of the total t. So

$0.6t = 3000$

$t = \frac{3000}{0.6}$

$t = 5000$

5000 students appeared in the examination.

4 0

2 years ago

HELP ASAP!!!.

Arte-miy333 [17]

Answer:

$54

Step-by-step explanation:

Since its $0.24 per 1 square inch, you would multiply 0.24 by the total amount of square inches. When we do this, we get 54 as our answer.\

Hope this helps!

3 0

2 years ago

(x/6)-10=2<br> please help me find x

Ymorist [56]

Answer:

$x = 72$

Step-by-step explanation:

$( \frac{x}{6}) - 10 = 2 \\ ( \frac{x}{6} ) = 2 + 10 \\ \frac{x}{6} = 12 \\ x = 12 \times 6 \\ x = 72$

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rosijanka [135]

30=m2+b that's what I think but can't solve it

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2 years ago

The GFC of 84 and 56 is ?

arsen [322]

Answer:

What is the GFC of 56 and 84? The gcf of 56 and 84 is 28.

Step-by-step explanation:

6 0

2 years ago

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