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Artemon [7]
3 years ago
7

4) BRAINLIEST AND 15 POINTS

Mathematics
2 answers:
horrorfan [7]3 years ago
7 0

Answer:

BRAINLEST PLEASE

27 mph

Step-by-step explanation:

s + p = 330/10 = 30

s - p = 330/15 = 22

adding eqns ... 2s = 52

Anarel [89]3 years ago
4 0
<h2><u><em>BRAINLIEST PLEASE</em></u></h2>

Answer:

27 mph

Step-by-step explanation:

Let the rate of snowmobile be s and the rate at which the pack ice is drifting be z

distance is equal to speed times time

330 = (s + z ) x 12

330 = (s + z ) x 15

solve and get 54 = 2s

that makes s = 27

making your answer 27mph (C)

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Mrs. barney earns $80 for tutoring for 2 hours. If she gets a 10% raise, how much does she now earn per hour.
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3 years ago
Zucchini weights are approximately normally distributed with mean 0.8 pound and standard deviation 0.25 pound. Which of the foll
Charra [1.4K]

Answer:

0.81859

Step-by-step explanation:

We solve using z score method

The formula for calculating a z-score is is z = (x-μ)/σ,

where

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σ is the population standard deviation.

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For x = 1.3 pounds

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Probability value from Z-Table:

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The probability that a randomly selected zucchini will weigh between 0.55 pound and 1.3 pounds is

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6 0
3 years ago
Solve system by graphing 2x-6y=12 x+y=2
astraxan [27]
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5 0
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An isosceles trapezoid has bases of lengths 6 and 8 and a height of 16. Find the area.
11111nata11111 [884]

Answer:

Step-by-step explanation:

In an isosceles trapezoid, the opposite sides are equal.

The formula for determining the area of a trapezoid is expressed as

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From the information given,

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Therefore,

Area of trapezoid = 1/2(6 + 8)16

= 1/2 × 14 × 16 = 112 square units

3 0
3 years ago
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