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3 years ago

I need help on this question

Mathematics

2 answers:

Alenkinab [10]3 years ago

6 0

Answer : I’ll say it’s B.
If it’s wrong sorry. I tried.

Reika [66]3 years ago

6 0

The correct answer would be B. If you divide by three on triangle A’B’C’ you would get triangle ABC

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Combine like terms. (−2n−2)+(6+8m)+(8m+4n)

katrin2010 [14]

Answer:

16m + 2n + 4

Step-by-step explanation:

( −2n −2) + (6 + 8m) + (8m + 4n)

−2n + −2 + 6 + 8m + 8m + 4n

(8m + 8m) + ( −2n + 4n) + (−2 + 6)

16m + 2n + 4

7 0

2 years ago

If 20% of a school was made up of out-of-district students last year, but the number of out-of-district students increased by 50

Nadya [2.5K]

Answer:

<h2>30% is enrolled out-of-district.</h2>

Step-by-step explanation:

According to the word problem, the number is increased by 50%.

To increase a number by a percent, multiply the number and the percent.

We can do this by changing both percents to decimals.

To change a percent to a decimal, divide it by 100.

$20/100 = 0.2$

$50/100=0.5$

The number is INCREASED by 50% so 0.5 would become 1.5.

$0.2 * 1.5=0.3$

4 0

2 years ago

7y + 4x + 4 - 2x + 8 what is the coefficient

Romashka [77]

7y 4x and 2x they all are paired with a variable

3 0

3 years ago

Write as a decimal and percent <br><br>350/100

goldenfox [79]

First, let's simplify this a bit ok?

$\frac{350}{100} = \frac{35}{10}$

Now, as a decimal: 3.5

As percent you multiply the number by 100 % (which is 1, and you an always multiply by 1):

3.5 *100%=350 %.

7 0

3 years ago

What would P(A|B) be?

Ipatiy [6.2K]

$P(A \cap B) = P(A) \cdot P(B)$

so

$P(A) = \frac{P(A \cap B)}{P(B)} = \frac{2/3}{3/4} = \frac{8}{9}$

also, if A or B happens but not both, you add the chances and subtract the chance that both are happening.

$P(A|B) = P(A) + P(B) - P(A \cap B) = \frac{8}{9} +\frac{3}{4} - \frac{2}{3} = \frac{35}{36}$

4 0

3 years ago