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Ivan
3 years ago
14

How is the percent efficiency of a machine determined?

Mathematics
2 answers:
Stels [109]3 years ago
8 0

The answer is B. I just answered this question earlier!

Archy [21]3 years ago
7 0

Answer:

i need the ansrew too

Step-by-step explanation:

hehe

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Can someone please help me i dont understand this at all
goblinko [34]

Answer:

D.

40 x 6.4 = 256

256/128=2 so 2 gallons.

Step-by-step explanation:

5 0
3 years ago
adam drove 280 miles in 4 hours . on average, how fast did he drive in hours per mile ? Express your answer in simplest form
Ivan

Answer:

Step-by-step explanation:

\frac{4 hours}{280 miles}

\frac{1 hour}{70 miles}

5 0
4 years ago
Can someone explain how to solve please ​
Karo-lina-s [1.5K]

Answer:

A

Step-by-step explanation:

you can just plug in the numbers until they come out equal

5 0
3 years ago
Read 2 more answers
what is the solution of the system of equations? y = –2x 8 y = x – 4 a. (–1.33, –5.33) b. (4, 0) c. (0, 4) d. (–12, 32)
IRISSAK [1]
Y = -2x + 8 = x - 4
x + 2x = 8 + 4
3x = 12
x = 4
y = -2(4) + 8 = -8 + 8 = 0
Solution is (4, 0)
3 0
3 years ago
Read 2 more answers
what is the slope and y-intercept? write the equation. this is finally the last problem on my homework
IgorLugansk [536]

(y2-y1)/(x2-x1)

3-2=1

4-2=2

slope: 1/2

y-int: 1

y=1/2x+1

4 0
3 years ago
Read 2 more answers
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