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Vsevolod [243]
3 years ago
14

I really need help !!

Mathematics
1 answer:
Gnesinka [82]3 years ago
7 0
Your proportion is
  (65 mi)/(19 gal) = (x mi)/(57 gal)

Multiply by (57 gal/mi) to solve the problem.
  57(65/19) = x = 195

The boat can travel 195 miles on 57 gallons of gas.
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Andrew has a bag with an equal number of yellow and orange jelly beans. He draws a tree diagram to show the sample space if he r
PSYCHO15rus [73]
He has 2 jelly beans
6 0
3 years ago
Justin did push-ups for the past 555 days.The following data points are the number of push-ups he did each day.
Vitek1552 [10]

Answer: σ: 2.76

Step-by-step explanation:

Count, N: 5

Sum, Σx: 125

Mean, μ: 25

Variance, σ2:  7.6

Steps

look at attached pic for formula

σ^2 = \frac{Σ(xi - μ)^{2} }{N}

\frac{(21 - 25)2 + ... + (29 - 25)2}{5}

⇒ \frac{38}{5}

⇒ 7.6

σ =  \sqrt{7.6}

⇒   2.756809750418

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3 0
2 years ago
If b is between a and c then ab+bc=ac
erma4kov [3.2K]
That's false. Take the numbers 1, 3, and 5.
Let a = 1, b = 3, and c = 5.
ab + bc = ac
3 + 15 = 5
18 ≠ 5
Since 18 does not equal 5, this is false. If you were to use the distributive property on ab + bc = ac, you would get
b(a+c) = ac, which doesn't even make sense.
Have a nice day! :)
3 0
3 years ago
The robotics club has created 10 racing robots for the end of year science fair. each robot has the same chance of winning the r
Andreas93 [3]

Answer:  \frac{7}{120}

Step-by-step explanation:

8 0
2 years ago
Tyler’s brother works in a shoe store. The store was selling a pair of shoes for $80. They now are on sale for $50. What is the
Sedbober [7]

Answer:

0.3%

Step-by-step explanation:

80-50=30

30÷100

=0.3%

5 0
2 years ago
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