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2 years ago

5

Leon has to drive 36 miles to work. If he can average a speed of 48 miles per hour, about how long does it take him to get to wo

rk each day? (Hint: Use the formula d = rt.)
1. a quarter of an hour
2. three-fourths of an hour
3. half an hour
4. more than an hour

1 answer:

krok68 [10]2 years ago

7 0

Answer:

i think the answer is 45 mins sorry if im wrong

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(4 ten thousands 4 thousands) x 10

madreJ [45]

440,000is the awnser

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3 years ago

Read 2 more answers

Can some help me with this question

Luden [163]

To find the equation of this line in slope-intercept form (y = mx + b, where m is its slope and b is its y-intercept), we naturally need the slope and the y-intercept. We can see that the line intersects the y-axis at the point (0, 4) so our y-intercept is 4, and the line rises 4 along the y-axis for every 2 it runs along the x-axis, so its slope is 4/2 = 2. With this in mind, we can write the line's equation as

y = 2x + 4

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3 years ago

A street light is at the top of a 25 ft pole. A 4 ft tall girl walks along a straight path away from the pole with a speed of 6

Burka [1]

Answer:

Tip of the shadow of the girl is moving with a rate of 7.14 feet per sec.

Step-by-step explanation:

Given : In the figure attached, Length of girl EC = 4 ft

Length of street light AB = 25 ft

Girl is moving away from the light with a speed = 6 ft per sec.

To Find : Rate ( $\frac{dw}{dt}$ ) of the tip (D) of the girl's shadow (BD) moving away from th

light.

Solution : Let the distance of the girl from the street light is = x feet

Length of the shadow CD is = y feet

Therefore, $\frac{dx}{dt}=6$ feet per sec. [Given]

In the figure attached, ΔAFE and ΔADE are similar.

By the property of similar triangles,

$\frac{x}{21}=\frac{x+y}{25}$

25x = 21(x + y)

25x = 21x + 21y

25x - 21x = 21y

4x = 21y

y = $\frac{4x}{21}$

Now we take the derivative on both the sides,

$\frac{dy}{dt}=\frac{4}{21}\times \frac{dx}{dt}$

= $\frac{4}{21}\times 6$

= $\frac{8}{7}$

≈ 1.14 ft per sec.

Since w = x + y

Therefore, $\frac{dw}{dt}= \frac{dx}{dt}+\frac{dy}{dt}$

$\frac{dw}{dt}=6+1.14$

= 7.14 ft per sec.

Therefore, tip of the shadow of the girl is moving with a rate of 7.14 feet per sec.

3 0

3 years ago

PLZ HELP ASAP!! Drag and drop the constant of proportionality into the box to match the table. If the table is not proportional,

Morgarella [4.7K]

Answer:

not proportional

2 / 1 ≠ 3 / 2

5 0

3 years ago

I can’t figure out this answer I’ve gotten so many and it seems non of them work

Mandarinka [93]

The quotient is 0.20125.

Solution:

Divide .03220 by .16

This can be written as

$$\frac{\cdot 03220}{\cdot 16}$

To divide this, we first remove the decimal term.

To remove decimal in denominator multiply and divide by 100.

$$\frac{\cdot 03220}{\cdot 16}\times \frac{100}{100}=\frac{3.22}{16}$

Now, divide 3.22 by 16.

The quotient is 0.20125.

The image of the long division is attached below.

6 0

2 years ago