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julsineya [31]
3 years ago
10

You and your friend each start a car-washing service. you spend $25 on supplies and charge $10 per car. your friend spends $55 o

n supplies and charges $13 per car. how many cars do you have to wash to earn the same amount of money as your friend?
Mathematics
1 answer:
lakkis [162]3 years ago
7 0
Let x be the number of cars. We will find out how many cars you have to wash to make as much money as your friend:
10x - 25= 13x - 55 Add 25 on both sides and subtract 13x, also both sides:
3x = -30 Now divide both sides by -3:
x= 10 cars you have to wash.

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Factorise x squared + 3x + 2​
Zielflug [23.3K]

Answer:

(x + 2)(x + 1)

Step-by-step explanation:

by factorising ;

=》

{x}^{2}  + 3x  + 2

=》

{x}^{2}  + 2x + x + 2

=》

x(x + 2) + 1(x + 2)

=》

(x + 2)(x + 1)

<em>i</em><em> </em><em>hope</em><em> </em><em>it</em><em> </em><em>helped</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

8 0
2 years ago
two crates contain Apple's, pears and oranges. there are 184 apples and pears in crate one and 248 apples and oranges in the sec
Ray Of Light [21]

Answer: There are 152 apples.

The explanation is shown below:

- You need to write the following three equations, where a is the the number of apples, p is the number of pears and o is the number of oranges:

1) a+p=184

2) a+o=248

3) o=3p

-  You must substitute the equation 3) into the equation 2):

 a+3p=248

- Now, you need to solve for p in the equation 1) and then you must substitute it into a+3p=248:

p=184-a

a+3(184-a)=248

- Solve for a, as following:

a+552-3a=248\\-2a=-304\\a=\frac{-304}{-2}\\a=152

- Therefore, there are 152 apples.

7 0
3 years ago
Help with my math plz! Giving brainlist :D
cupoosta [38]
Number six is 70 cus your adding
5 0
3 years ago
Help help help help help
Alex777 [14]
Number 1 is 2.5, hope this helps a bit!
7 0
3 years ago
Read 2 more answers
Help me with these asap
IgorLugansk [536]
Use the app that you can easily find answers on
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2 years ago
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