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Misha Larkins [42]

3 years ago

13

Three siblings are comparing their Ages Jenna is the youngest. Her brother Carl is 6 years younger than her . Her sister eve is

twice her age. The sum of their ages is 42. Let j represent jennas age. Write an expression for eves age in terms of j.

1 answer:

ryzh [129]3 years ago

8 0

Answer:

hgjjjjjjjjjjjjjjjjggggg

Step-by-step explanation:

hggggggggggggggggggjgjjj

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‼️ 30 POINTS ‼️<br> Which table best classifies the following numbers as rational and irrational?

OLEGan [10]

Answer:

D

Step-by-step explanation:

Lets look at the numbers

sqrt(4) = 2 which is a rational number

sqrt(5) cannot be simplified, it is an irrational number

-6/5 a ratio of integers, which is the definition of a rational number, so it is a rational number

3.5 = 35/10 a ratio of integers, which is the definition of a rational number, so it is a rational number

.555555 = 5/9 a ratio of integers, which is the definition of a rational number, so it is a rational number

Rational numbers: sqrt(4), -6/5, 3.5 , .5555(repeating)

Irrational numbers: sqrt(5)

6 0

3 years ago

√32+√42 ÷ √8 +√12 simplify

pav-90 [236]

Note: It should be 48 instead of 42 because √42 cannot be simplified.

Given:

Consider the given expression is

$\dfrac{\sqrt{32}+\sqrt{48}}{\sqrt{8}+\sqrt{12}}$

To find:

The simplified form of the given expression.

Solution:

We have,

$\dfrac{\sqrt{32}+\sqrt{48}}{\sqrt{8}+\sqrt{12}}$

It can be written as

$=\dfrac{\sqrt{16\times 2}+\sqrt{16\times 3}}{\sqrt{4\times 2}+\sqrt{4\times 3}}$

$=\dfrac{4\sqrt{2}+4\sqrt{3}}{2\sqrt{2}+2\sqrt{3}}$

$=\dfrac{4(\sqrt{2}+\sqrt{3})}{2(\sqrt{2}+\sqrt{3})}$

$=\dfrac{4}{2}$

$=2$

Therefore, the simplified form of the given expression is 2.

5 0

3 years ago

The perimeter of a playing card is 30 centimeters. It is 9 centimeters tall. How wide is it?PLS HELP!

zlopas [31]

Answer:

6 cm.

Step-by-step explanation:

The perimeter = 2(H + W) where H = height and W = width. So we have:

30 = 2(9 + W)

30 = 18 + 2W

2W = 30 - 18 = 12

W = 6 cm.

8 0

3 years ago

Read 2 more answers

Two roommates share a dorm in Richards Hall, The probability that Roommate A is doing homework on a Friday night is .3. The prob

bixtya [17]

Answer:

There is a 50% probability that at least one roommate is doing homework this Friday night.

Step-by-step explanation:

This problem can be solved building the Venn Diagram of these probabilities.

I am going to say that P(A) is the probability that the roommate A is doing homework and P(B) is the probability that the roommate B is doing homework.

We have that:

$P(A) = P(a) + P(A \cap B)$

In which P(a) is the probability that only the roommate A is doing homework and $P(A \cap B)$ is the probability that both student A and student B are doing homework.

We also have that:

$P(B) = P(b) + P(A \cap B)$

The problem states that

The probability that Roommate A is doing homework on a Friday night is .3. So $P(A) = 0.3$ .

The probability that Roommate B is doing homework on a Friday night is .4. So $P(B) = 0.4$

The probability that both roommates are doing homework on a Friday night is .2. So $P(A \cap B) = 0.2$

Find the probability that: At least one roommate is doing homework this Friday night

This is the probability that either only A is doing, either only B, or both. So:

$P = P(a) + P(b) + P(A \cap B)$

We have that

$P(A) = P(a) + P(A \cap B)$

We have P(A) and $P(A \cap B)$ , so we can find P(a)

$P(A) = P(a) + P(A \cap B)$

$0.3 = P(a) + 0.2$

$P(a) = 0.1$

Also

$P(B) = P(b) + P(A \cap B)$

$0.4 = P(b) + 0.2$

$P(b) = 0.2$

So:

$P = P(a) + P(b) + P(A \cap B)$

$P = 0.1 + 0.2 + 0.2$

$P = 0.5$

There is a 50% probability that at least one roommate is doing homework this Friday night.

4 0

4 years ago

Blank % of 50 shirts is 35 shirts

Angelina_Jolie [31]

If you would like to solve x% of 50 shirts is 35 shirts, you can calculate this using the following steps:

x% of 50 shirts is 35 shirts
x% * 50 = 35
x/100 * 50 = 35 /*100/50
x = 35 * 100 / 50
x = 70%

Result: 70% of 50 shirts is 35 shirts.

7 0

3 years ago