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sergey [27]
3 years ago
14

(4x+5)-(3x-3) write this in the simpilest form pls explain

Mathematics
1 answer:
eduard3 years ago
6 0

Answer:

x+8

Step-by-step explanation:

4x-3x=x

5-(-3)=8 or 5+3=8

Reason its adding is because a - times a - equals a positive

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Two isosceles triangles are shown above. If b = 180-4a and a=35, What is the value of c?
Ymorist [56]

Answer:

a=35 given

b=40  

c=110

I couldn't complete see c. Please look at the picture to see what I assumed it to be.

Step-by-step explanation:

Hmmm... I guess a and b are not vertical.

We are given b=180-4a and a=35 so b=180-4(35)=180-140=40.

So b=40.

Isosceles triangles always have congruent base angles.  So let's call both of the base angles in the bottom triangle x.

That means x+x+40=180.

We need to solve this for x.

Combine like terms:

2x+40=180

Subtract 40 on both sides:

2x=140

Divide both sides by 2:

x=140/2

Simplify:

x=70

So I'm assuming that c and it's adjacent angle are sitting on a straightedge together which means 70+c=180.

70+c=180

Subtract 70 on both sides:

c=180-70

Simplify:

c=110

4 0
3 years ago
Wholesome Pizza surveyed a random sample of 404040 Trinity Food Festival attendees about their favorite type of pizza. Of the at
ale4655 [162]
For this case the first thing we should do is find the percentage of people surveyed who said that pizza pizza was their favorite type of pizza.
 We have then:
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x = 52.5%
 We are now looking for 52.5% of 1600 people.
 For this, we make the following rule of three:
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 Clearing the value of x we have:
 x = (52.5 / 100) * (1600)

x = 840
 Answer:
 
the most reasonable estimate for the number of Trinity Food Festival attendees whose favorite type of pizza is sausage pizza is:
 
x = 840
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