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atroni [7]
3 years ago
8

Approximately 2\%2%2, percent of the people in the world have red hair. There are about 7{,}000{,}000{,}0007,000,000,0007, comma

, 000, comma, 000, comma, 000 people in the world. About how many people have red hair?
Mathematics
1 answer:
weqwewe [10]3 years ago
3 0
Find 2% of 7 billion.

7,000,000,000 x .02 = 140,000,000

About 140 million people have red hair.
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(4x+3)(3x)-25 graph
maw [93]

Answer:

12x^2+9x^2-25    (quadratic equation)

a=12, b=9, c=-25

put this in quadratic formula

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
You are designing an aquarium that is to have a tank holding 225,000 gallons of water. The tank will be 100 feet long and 20 fee
ziro4ka [17]
So hmmm notice the picture below

thus   \bf \textit{volume of a rectangular prism}\\\\
V=lwh\qquad 
\begin{cases}
l=length\\
w=width\\
h=height\\
----------\\
l=100\\
w=20\\
V=225,000
\end{cases}\implies 225,000=(100)(20)h

solve for "h"

5 0
3 years ago
Please help me need to revise for a testtt!!!!
LUCKY_DIMON [66]
Remember you can add like terms exg, 3y+4y=7y 3y^2+4y^2=7y^2, but cannot add 3y^2 and 4y, or 3 and 4y so

3a+2w-5a-9w
group like trems
3a-5a+2w-9w
subtract
-2a-7w


3y^2+2w^2-y^2-w^2
group like terms (think of w^2 and y^2 as 1w^2 and 1y^2)
3y^2-y^2+2w^2-w^2
subtract
2y^2+w^2

2x+2x=4x
3 0
3 years ago
Read 2 more answers
What is the GCF for # 2 <br><br> 2) 2x^2 -20x+32
ioda

so the answer is 2 for the question?

3 0
3 years ago
Weiming receives a weekly pocket money of $28. If he decides to save 20% of it, find his saving in a year and spendings in a yea
Maru [420]

Welming's spending is $1164.8 and his savings is $291.2

<h3>How to determine the savings and the spending?</h3>

The given parameters are:

Weekly pocket = $28

Save = 20%

There are 52 weeks in a year.

So, the yearly pocket is:

Yearly pocket = $28 * 52

Evaluate

Yearly pocket = $1456

He saves 20%.

So, we have:

Savings = 20% * $1456

Evaluate

Savings = $291.2

His spending is then calculated as:

Spending = $1456 - $291.2

Evaluate

Spending = $1164.8

Hence, Welming's spending is $1164.8 and his savings is $291.2

Read more about percentage at:

brainly.com/question/843074

#SPJ1

7 0
2 years ago
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