To keep the balance, add 5 to each side. Example 2. Solve the equation -8 = n - (-4). Solution: After simplifying the right side of theequation, use the subtraction property of equality to subtract 4 from both sides of theequation

8 0

3 years ago

Read 2 more answers

Evaluate the expression

Marrrta [24]

The answer would be 16

11 + (8-3)^2 - 20 = 16

3 0

3 years ago

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

NEED HELP ASAP!! (25 POINTS)

sergij07 [2.7K]

Answer:

Step-by-step explanation:

i taken this earlier today

7 0

3 years ago