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OlgaM077 [116]
3 years ago
13

Erick ran 3 miles in 20 minutes. What was Erick’s average speed?

Mathematics
2 answers:
aniked [119]3 years ago
8 0
His average speed would be 9 miles per hour
irinina [24]3 years ago
4 0

Answer:

6.666666666666... minutes per mile

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Simplify (45) - (+14)​
Sveta_85 [38]

Answer:

31

Step-by-step explanation:

(45) - (+14)

45 - 14 (Negative sign is distributed)

=31

4 0
3 years ago
Read 2 more answers
Suppose that angle P = 3x + 14 and angle Q = 3x - 27. If these angles are supplementary, angle Q would need to be ___ degrees.
adelina 88 [10]

Answer:

Q = 69.5 degrees

Step-by-step explanation:

3x + 14 + 3x - 27 = 180

6x - 13 = 180

6x = 193

x = 32.1667

Q = 3(32.1667) - 27

Q = 69.5

5 0
3 years ago
Evaluate the expression x²+yz for x=-3, y=5, and z=2
Over [174]

Answer:

I think that the answer is 19.

Step-by-step explanation:

Writing out the problem

x²+yz

Substituting the given values of the variables

(-3)²+(5)(2)

Simplifying (-3)², which is 9

9+(5)(2)

5 times 2 equals 10

9+10

19

I hope this helped you. Enjoy your day, and take care :)

3 0
2 years ago
What is (4x+2)^2-3 ??
Veronika [31]
(4x+2)²-3
16x²+4-3
16x²+1

Hope this helps :)
4 0
3 years ago
What are the slope and the y-intercept of the linear function that is represented by the graph?
Serhud [2]

Answer:

The first option

Step-by-step explanation:

The slope m can be calculated using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, - 2) and (x₂, y₂ ) = (3, 0) ← 2 points on the line

m = \frac{0+2}{3-0} = \frac{2}{3}

The y- intercept is the point on the y- axis where the line crosses, that is - 2

Thus slope = \frac{2}{3} and the y- intercept is - 2

3 0
3 years ago
Read 2 more answers
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