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3 years ago

20 = 8x + 4y what is y?

2 answers:

7 0

You have to move the 8x over to the other side to get y by itself. and then divide the 4 from the y to the other side and y should equal y= 2x+5

Romashka [77]3 years ago

5 0

Answer:

y = -2x + 5

Step-by-step explanation:

20 = 8x + 4y

subtract 8x from both sides

4y = -8x + 20

divide both sides by 4

y = -2x + 5

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Light travels at 186,000 miles per second. Light takes about 11⁄3 seconds to travel from the earth to the moon. Calculate the di

elena55 [62]

Light travels at 186,000 miles per second. Light takes about 11⁄3 seconds to travel from the earth to the moon. Calculate the distance between the earth and the moon based on the speed of light.

First of all we must multiply the speed of light by the time it takes to travel to the from here to the moon. The quantity is 682,000 miles.

Hope I helped!

6 0

4 years ago

WILL GIVE BRAINLIEST TO CORRECT ANSWER

Musya8 [376]

The volume of a Cone = $\frac{1}{3} \pi r^{2}h$

Since for the ice cream cone has h = 4 inches; r = 0.75; π = 3.14

Then Volume of the Cone = 2.355 in³

∴ This ice cream cone can hold ≈ 2.36 in³ of ice cream without overflowing

7 0

3 years ago

Read 2 more answers

Work out the size of angle x first correct answer will get brainliest

Helen [10]

Answer : x = 52

Explanation: the whole angle is 360 which is a full rotation

X = 360 - (165 + 33 + 20 + right angle)
X = 360 - (165 + 53 + 90)
X = 360 - 308
X = 52

6 0

3 years ago

Read 2 more answers

Question 1

diamong [38]

Answer:

The ratio of the number of gigabytes to the price in dollars for Dial It Up is 1:8

The ratio of the number of gigabytes to the price in dollars for Ring Ring is 1:9

Step-by-step explanation:

The word problem relates to the comparison between the cost of a gigabyte on Dial It Up network and the cost per gigabyte on Ring Ring network

On Dial It Up, 2 gigabytes costs $16

Therefore, 1 gigabytes costs $16/2 = $8

Which gives Dial It Up cost per gigabyte as $8 per gigabyte

On Ring Ring, 1 gigabytes costs $9

Which gives Ring Ring cost per gigabyte as $9 per gigabyte

The ratio of the number of gigabytes to the price in dollars for Dial It Up is 1:8

The ratio of the number of gigabytes to the price in dollars for Ring Ring is 1:9.

5 0

3 years ago

Assuming boys and girls are equally likely, find the probability of a couple having a baby girl when their sixth child is born

Ivanshal [37]

Answer: The required probability of having 6th girl is 0.5.

Step-by-step explanation: Given that boys and girls are equally likely.

We are to find the probability of a couple having a baby girl when their sixth child is born, given that the first five children were all girls.

Since the events of having a boy and a girl are independent of each other, so

the probability of having 6th girl dose not depend on the birth of the first five girls.

We know that there are only two possible cases (either a boy or girl will born).

So, sample space, S = {G, B} and the event E of having a girl is, E = {G}.

That is, n(S) = 2 and n(E) = 1.

Therefore, the probability of event E is given by

$P(E)=\dfrac{n(E)}{n(S)}=\dfrac{1}{2}=0.5.$

Thus, the required probability of having 6th girl is 0.5.

3 0

3 years ago