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attashe74 [19]
2 years ago
9

Jacob has 12 fish, and all of them are either yellow or red. There are twice as many yellow fish as red fish. How many yellow fi

sh does Jacob have? How many red fish does Jacob have? Show your work.
Mathematics
1 answer:
Vinil7 [7]2 years ago
4 0

Answer:

yellow : 8

Red : 4

Step-by-step explanation:

Yellow : Y and Red : R

R : Y = 12

They need to add up to 12 because its the total.

We know that yellow is twice the amount so

4×2= 8

so if yellow was to be times by 2 itd be 8 which will still add up to 12.

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3−2x=2x+3(6−3x)−7(1−2y)=25+6y
Zielflug [23.3K]

Answer:

Step-by-step explanation:

First you need to use the distributive property:

3-2x+2x+3(6-3x)-7(1-2y)=25+6y

3-2x=2x+18-9x-7+14y=25+6y

3-2x=-7x+11+14y=25+6y

Then Split up the equations.

3-2x=-7x+11

Subtract 3 from both sides

-2x=-7x+8

Then add -7x to both sides

5x=8

Then divide both sides by 5x

X=\frac{5}{8}

To solve for y: just use 14y=25+6y

Subtract both sides by 6y

8y=25

Then divide both sides by 8y

y=\frac{25}{8}

7 0
2 years ago
1. Henri cut a rope into two pieces with lengths having a ratio of 5 to 2. The shorter piece is
ruslelena [56]

The length of the shorter rope is 20 cm.

<h3>How to find the original length of the rope using ratio?</h3>

He cut a rope into two pieces with lengths having a ratio of 5 to 2.

The shorter piece is 70 cm long.

The length of the original rope can be calculated as follows:

The ratio of the length of the rope is as follows;

5 : 2

let

x = length of the original rope

Therefore,

length of shorter piece = 2 / 7 × 70

length of shorter piece = 2 / 7 × 70

length of shorter piece =  140 / 7

length of shorter piece = 20 cm

Therefore, the length of the shorter rope is 20 cm.

learn more on ratio here: brainly.com/question/15418103

#SPJ1

8 0
1 year ago
Which of the following describes a scenario in which a chi-square goodness-of-fit test would be an appropriate procedure to just
egoroff_w [7]

Answer:

A campaign manager would like to show the distribution of individuals...

Step-by-step explanation:

goodness of fit can be used to compare observed and expected counts. The newspaper report would be the expected. The campaign manager's distribution is the expected.

3 0
2 years ago
For a school assembly student sit in chairs that are arranged in 53 rows. There are 12 chairs in each row. About how many studen
loris [4]
53x12=636 that is your answer that is the way to estimate it your answer is 636 that is how many students can be seated
6 0
2 years ago
Multiply the following numbers. Reduce the answer to lowest terms. 3 1/4 · 1 1/3
shepuryov [24]

Answer:

I think the answer is 3 1/12

Forgive me if I am wrong though

Step-by-step explanation:

7 0
3 years ago
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