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madam [21]
3 years ago
10

Karina travels 70 miles at an average speed of 50 mph.

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
8 0

Answer:

38.60 mph

Step-by-step explanation:

Average speed = total distance / total time

44 mph = (70 mi + 60 mi) / t

t = 2.95 hr

The time spent during the first 70 miles is:

d = rt

70 mi = (50 mph) t

t = 1.4 hr

So the time spent during the last 60 miles is:

t = 2.95 hr − 1.4 hr

t = 1.55 hr

So the average speed during the last 60 miles is:

d = rt

60 mi = r (1.55 hr)

r = 38.60 mph

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Answer:

$13.67 - $11.50

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$2.17 / 7 = 0.31

His wage was raised <u>.31 every year</u>.

6 0
3 years ago
What are the values of x and y if this equation is true?<br><br> 22(x + yi) + (28 + 4i) 72 – 62i
ASHA 777 [7]

Answer:

x = 2

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Step-by-step explanation:

The given equation is,

22(x + yi) + (28 + 4i) = 72 - 62i

By solving this equation further,

22x + 22yi + 28 + 4i = 72 - 62i

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Now both the sides of the equation is in the form of complex number,

By comparing real and imaginary parts given on both the sides,

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8 0
4 years ago
What is the property used in 25+0=25
xz_007 [3.2K]

math teacher said its associative

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4 years ago
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Serggg [28]

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42 Blades

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Answer:

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Step-by-step explanation:

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8 0
3 years ago
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