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3 years ago

6

Seema runs 5 miles more per week than her sister Padma. If Seema runs 17 miles per week, which equation could be used to find th

e number of miles Padma runs each week? Writ

1 answer:

sashaice [31]3 years ago

6 0

Answer:

12

Step-by-step explanation:

because 17-5=12 so the answer is 12

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A street light is mounted at the top of a 15-ft-tall pole. A man 6 ft tall walks away from the pole with a speed of 4 ft/s along

mina [271]

Answer:

The tip of the man shadow moves at the rate of $\frac{20}{3} ft.sec$

Step-by-step explanation:

Let's draw a figure that describes the given situation.

Let "x" be the distance between the man and the pole and "y" be distance between the pole and man's shadows tip point.

Here it forms two similar triangles.

Let's find the distance "y" using proportion.

From the figure, we can form a proportion.

$\frac{y - x}{y} = \frac{6}{15}$

Cross multiplying, we get

15(y -x) = 6y

15y - 15x = 6y

15y - 6y = 15x

9y = 15x

y = $\frac{15x}{9\\} y = \frac{5x}{3}$

We need to find rate of change of the shadow. So we need to differentiate y with respect to the time (t).

$\frac{dy}{t} = \frac{5}{3} \frac{dx}{dt}$ ----(1)

We are given $\frac{dx}{dt} = 4 ft/sec$ . Plug in the equation (1), we get

$\frac{dy}{dt} = \frac{5}{3} *4 ft/sect\\= \frac{20}{3} ft/sec$

Here the distance between the man and the pole 45 ft does not need because we asked to find the how fast the shadow of the man moves.

7 0

3 years ago

On a map, there are 3 inches between two cities. The actual distance between the cities is 18 miles. What was the scale used? Pl

stira [4]

Answer is 1 in=6 miles, answer A.

5 0

3 years ago

Can someone help me out :P

GuDViN [60]

Answer:

ummmm im sorry but i need points uwu love you<3

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Brandon says to get that shade of green, 6 pints of yellow paint need to be added to the bucket. Bianca says that won't work. In

Ksenya-84 [330]

<span>There are 2 pints of blue and 2 pints of yellow in the bucket.
To be 80% yellow, the new color will be (100%-80%=) 20% blue.

2 pints is 20% of (2 pints/0.20=) 10 pints.
With 4 pints in the bucket, to make 10 pints you should add
(10 pints-4 pints=) 6 more pints of yellow paint.

ANSWER: You should add 6 pints of yellow to the 4 pints of green in the bucket to make the new color that is 80% yellow.</span>

3 0

3 years ago

vitfil [10]

Answer:

3196

Step-by-step explanation:

A. You Add all the blocks.

B. Then you multiply 17 x your answer then you get your answer.

4 0

3 years ago