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zavuch27 [327]
3 years ago
7

Write as many equations as possible that could represent the relationship between

Mathematics
1 answer:
IgorC [24]3 years ago
5 0

Answer:

a) Here we have:

"In Family A, the youngest child is 7 years younger than the oldest, who is 18"

Let's define:

Y = age of the youngest child.

O = age of the oldest child.

Then we know that:

Y = O - 7

O = 18

Then we can replace the second equation into the first one:

Y = 18 - 7 = 11.

b) Here we have:

"In Family B, the middle child is 5 years older than the youngest child."

Let's define:

Y = age of the youngest child.

M = age of the middle child.

Here we have only one equation:

M = Y + 5.

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A bag contains 5 red marbles, 8 blue marbles and 4 green marbles. If three marbles are drawn out of the bag, what is the probabi
Zarrin [17]

Step-by-step explanation:

step 1. let's assume they are drawn without replacement and probability is denoted P.

step 3. P = (5/17)(4/16)(3/15)

step 4. P = (5/17)(1/4)(1/5)

step 5. P = 5/340

step 6. P = 1/68 = 0.0147 = 1.5%

6 0
2 years ago
PLEASE HELP!! ASAP!!
mr Goodwill [35]

Answer:

D and E

Step-by-step explanation:

A vertical asymptote in this case would mean that the denominator is equal to zero, which is undefined. You can factor the denominator to get you the fraction:

x+2 / (x+6)(x-4) = 0

Then you know that to equal zero, x would have to equal either -6 or 4, which is E and D.

6 0
3 years ago
Which of the following are rational numbers?
kiruha [24]

Answer:

WHere are the numbers?

Step-by-step explanation:

5 0
3 years ago
This is confusing... can someone help me?! Please
Alex_Xolod [135]
So if you convert the numbers to numerical form it is 20+20+30=70
20+20=40
40+30=70
If you still don't understand feel free to ask for more help
5 0
3 years ago
There are x boys playing in the park. The number of girls playing in the park is equal to the square root of the number of boys.
konstantin123 [22]

Answer:

Option A. 36

Step-by-step explanation:

Let

x-------> the number of boys

y------> the number of girls

we know that

x+y=42 -----> equation A

y=\sqrt{x} -----> equation B

using a graphing tool to solve the system of equations

Remember that the solution is the intersection point both graphs

The solution is the point (36,6)

see the attached figure

therefore

The number of boys is 36

7 0
3 years ago
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