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2 years ago

Darrell drove 187 miles in 3 hours. what was Darrell's average rate of speed

Mathematics

1 answer:

MArishka [77]2 years ago

5 0

187/3 = 62.33/1

He drove an average of 62.33 mph

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A cuboid with dimensions 45 cm by 16 cm by 12 cm is cut to form smaller cubes of

LenKa [72]

Answer:

135 cubes

Step-by-step explanation:

Volume of cuboid :

45 x 16 x 12
720 x 12
8,640 cm³

Volume of a small cube :

(4)³
64 cm³

Number of cubes :

n = 8,640/64
n = 135 cubes

4 0

1 year ago

Klara has 3 bowls. She puts 6 peaches in each bowl. She has 4 peaches left over. How many peaches did Klara start with in all?

shepuryov [24]

Answer:

22 peaches

Step-by-step explanation:

I hope this help! :)

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2 years ago

Is line 1 (1,5) (3,-2) and like 2 (-3,2) (4,0) perpendicular of parallel?

Lera25 [3.4K]

Slope Formula: $\frac{y_2-y_1}{x_2-x_1}$

So remember that perpendicular lines have slopes that are negative reciprocals to each other and parallel lines have the same slope. To find out if they are either parallel or perpendicular, plug the pair of points into the slope formula to find their slopes:

$\textsf{Line 1}\\\\\frac{5-(-2)}{1-3}=-\frac{7}{2}\\\\\textsf{Line 2}\\\\\frac{0-2}{4-(-3)}=-\frac{2}{7}$

Since these slopes aren't the same nor are they negative reciprocals to each other, the lines are neither parallel nor perpendicular.

7 0

3 years ago

Solve for t. d=3+at^2

GalinKa [24]

Answer:

it's the 2nd one

Step-by-step explanation:

d = 3 + at^2

-3 | -3

d - 3 = at^2

d - 3/a = t^2

√d - 3/a = √t^2

t = √d - 3/a

8 0

2 years ago

What is the equation of the line that passes through the point (2,7) and has a slope of -4

marissa [1.9K]

Answer:

D. y - 7 = -4 (x - 2)

Step-by-step explanation:

y - 7 = -4 (x - 2)

7 0

2 years ago