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finlep [7]
3 years ago
10

Can someone help me solve this pleaaaaaaaaaaaaaaaaaase 20 points !

Mathematics
2 answers:
Llana [10]3 years ago
5 0
220

Step by step explanation
harkovskaia [24]3 years ago
3 0
I think the answer is 220
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A family has two cars during one particular week the first car consume 25 gallons of gas and the second consumed 15 gallons of g
d1i1m1o1n [39]

Answer: the efficiency of the first car is 25 miles per gallon.

the efficiency of the second car is 30 miles per gallon.

Step-by-step explanation:

Let x represent the efficiency of the first car.

Let y represent the efficiency of the second car.

Distance = car efficiency × number of gallons.

The first car consume 25 gallons of gas and the second consumed 15 gallons of gas. The two cars Drove a combined total of 1075 miles. It means that

25x + 15y = 1075- - - - - - - - - - -1

The sum of the fuel efficiencies was 55 miles per gallon. It means that

x + y = 55

Substituting x = 55 - y into equation 1, it becomes

25(55 - y) + 15y = 1075

1375 - 25y + 15y = 1075

- 25y + 15y = 1075 - 1375

- 10y = - 300

y = - 300/-10

y = 30

x = 55 - y = 55 - 30

x = 25

4 0
3 years ago
Given f(x) = 2* and g(x) = 2x + 1 evaluate (f?g)(o) and (g?f)(2).
vredina [299]
F(x)•g(x)=
2(2x+1)=
4x+2
4(0)+2= 2

f(x)•g(x)=
2(2x+1)=
4x+2=
4(2)+2= 10
3 0
3 years ago
Which stands for 250 feet below sea level?
Drupady [299]
-250 feet most likely is the answer

Not for sure tho but slightly sure lol
7 0
3 years ago
(7-15-3+5-7)×1 step by step​
Tresset [83]

Answer:

-13

Step-by-step explanation:

(7−15−3+5−7)⋅1

Subtract 15 from 7 to get −8.

(−8−3+5−7)×1

Subtract 3 from −8 to get −11.

(−11+5−7)×1

Add −11 and 5 to get −6.

(−6−7)×1

Subtract 7 from −6 to get −13.

−13

6 0
2 years ago
Read 2 more answers
Accrual income versus cash flow for a period. Thomas Book Sales, Inc., supplies textbooks to college and university bookstores.
agasfer [191]

This is Q.a

I hope this helps

4 0
3 years ago
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