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Fantom [35]
3 years ago
10

A student is raising money for cancer research. A local business agrees to donate an additional 25% of what the student raises,

while a local politician also agrees to donate an additional 5% of what the student raises. If the student raises $450.00, what is the total donation?
Mathematics
1 answer:
Blababa [14]3 years ago
5 0
First, you find what 25% of $450.To do that, make 25% into a decimal, which is 0.25.Then you multiply 450 times 0.25 which is 112.5

Second, you find what 5% of 450. 5% as a decimal is 0.05. Then you multiply 450 times 0.05 which is 22.5

Third, you add 450+112.5+22.5 which is 585.

There you go. :) Hope that helped!
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Put together, Dulcina and Tremaine have 129 total matchbooks. Tremaine's collection has 39 fewer matchbooks in it than Dulcina's
Anit [1.1K]

Answer:

Let the Dulcina's collection be 'x'

Let the Tremaine collection be 'x-39'

x + x - 39 =129

2x = 129 +39

2x = 168

x = 168/2

x = 84

Dulcina's collection = x = 84

Tremaine's collection = x - 39 = 84 - 39 = 45

7 0
3 years ago
What is the sum of X2-3x+7 and 3x2+5X-9
Pie
x^2-3x+7+3x^2+5x-9=\ \ \ \  | combine\ like\ terms\\\\
4x^2+2x-2\\\\
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6 0
3 years ago
A farmer has both pigs and chickens on his farm there are 78 fee and 27 heads how many pigs and how many chickens are there
Andre45 [30]
Assuming health non-mutated animals:
Feet = 4*Pigs + 2*Chickens
Heads = Pigs + Chickens

By back substitution:
78 = 4*(27-Chickens) + 2*Chickens
78 = 108 -2*Chickens
-30 = -2*Chickens
Chickens= 15

Then:
27 = Pigs + 15
Pigs = 12

To check:
Feet = 4*Pigs + 2*Chickens
78 = 4*12 + 2*15
78 = 48 + 30
78 = 78 CHECKS
6 0
4 years ago
Emily has a babysitting job that pays $11 per hour. She wants to know how many hours she has to babysit to afford a
SCORPION-xisa [38]

Answer: 165=11h

Step-by-step explanation:

I believe it would be 165=11h because you have to multiply the number of hours she worked times 11 to get the amount that would equal 165!

5 0
3 years ago
How to use a protractor.
damaskus [11]

Answer:

You can see below!

Step-by-step explanation:

Basically, a protractor is used to measure angles. You probably have a semi-circle shaped one. Looking at the bottom middle of the protractor should show you lines intersecting each other at a point. If you have an angle on a piece of paper, place that point on the ends of the line segments making up the angle. Then, check where each line of the angle crosses the numbers on the outer rim. That shows you the measure of the angle you are examining. It can be a bit tricky, but with practice you'll get it in no time!

8 0
3 years ago
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