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Natalija [7]
3 years ago
6

Robert weighs 20 pounds more than his friend Genesis. The sum of their weights is more than 220 lbs. What is are the smallest po

ssible weights for each of them?
Mathematics
1 answer:
Vesnalui [34]3 years ago
5 0

Answer:robert=120lbs,genesis=100

Step-by-step explanation:take genesis as (x) and since robert is 20 pounds heavier he would be (X+20) so:

x+(x+20)  =220lbs

2x+20=220

2x=220-20

2x=200

x=100 which we took as genesis

which leaves robert's weight 100 +20 =120

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Answer:

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Step-by-step explanation:

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4 0
2 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:

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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}

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σ =  \sqrt{7.6}

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In the chemistry lab an experiment requires 599 mL of one ingredient to be mixed with 1000 mL of another. How many ounces is the
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Step-by-step explanation:

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2 years ago
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