WHATS THE ANSWER PLEASE HURRY

I need this answered it’s a math writing assignment

madreJ [45]

Answer:

It tells you that whatever f equals if you multiply it by three it will equal 16.

Step-by-step explanation:

16 divided by 3 = 5.333333...

f = 5.33333...

Pls Mark Brainliest

7 0

3 years ago

ThJennifers new bike cost $180. Her parents paid 40% of the costs and Jennifer paid the rest how much did Jennifer pay

Setler [38]

Answer:

Jennifer paid $108

Step-by-step explanation:

First you have to figure out how much Jennifer's parents paid. In order to do that you will have to do:

180 * 40 = 7,200 Then do: 7,200 / 100 which is 72 OR YOU CAN:

40 / 100 = .40 Then do : .40 * 72 which is 72

So Jennifer's parents paid $72.

So now you figured out how much Jennifer's parents paid, so to figure out how much Jennifer paid do:

180 - 72 which is $108.

This is how you know how much did Jennifer pay.

5 0

3 years ago

A rectangular piece of metal is 20 in longer than it is wide. Squares with sides 4 in long are cut from the four corners and the

Misha Larkins [42]

Answer:

Step-by-step explanation:

This is good! The length of the metal is 20 inches longer than the width. But we fold up 4-inch flaps on each side, so the height of the box is 4 inches, and the length and width will each decrease by 8 inches (4 inches on each side). Since the length and width decrease by the same amount, the length will still be 20 inches longer than the width. So the equations would be:

l = w + 20

vol = l x w x h = 1716 in3

1716 = (w + 20)(w)(4)

1716 = 4w2 + 80w

4w2 + 80w - 1716 = 0

4(w2 + 20w - 429) = 0

4(w + 33)(w - 13) = 0

w + 33 = 0, so w = -33

w - 13 = 0, so w = 13

Since the width can't be negative, the width of the box is 13 and the length is 33 (13 + 20).

But remember, the length and width of the piece of metal are each 8 inches longer than the box, so it was 41 inches by 21 inches.

7 0

3 years ago

The following data was collected from 10 visitors to Disneyland. A researcher stood at the entrance gate and interviewed the fir

Ludmilka [50]

Answer:

<u>The standard deviation for the sample of 10 families is 1.68 (Rounding to two decimal places)</u>

Step-by-step explanation:

1. The first step to calculate the standard deviation is to find out the mean, this way:

Mean = (1 + 1 + 2 + 2 + 2 + 2 + 3 + 3 + 4 + 7)/10

Mean = 27/10 = 2.7

2. Now we calculate the variance, this way:

Variance = [(1 - 2.7)²+(1 - 2.7)²+(2 - 2.7)²+(2- 2.7)²+(2 - 2.7)²+(2 - 2.7)²+(3- 2.7)²+(3 - 2.7)²+(4 - 2.7)²+(7- 2.7)²]/10

Variance = [2.89 + 2.89 + 0.49 + 0.49 + 0.49 + 0.49 + 0.09 + 0.09 + 1.69 + 18.49]/10

Variance = 28.1/10 = 2.81

3. Finally we calculate the standard deviation, this way:

Variance = Standard deviation²

√Variance = Standard deviation

√2.81 = Standard deviation

<u>Standard deviation = 1.68 (Rounding to two decimal places)</u>

6 0

4 years ago

Find the distance traveled in 35 seconds by an object traveling at a velocity of v(t) = 20 + 5cos(t) feet per second

rosijanka [135]

$s(t)= \int\limits^{35}_0 {v(t)} \, dt \\ =\int\limits^{35}_0 {(20+5cos(t))} \, dt \\ =[20t+5sin(t)]^{35}_0 \\ =(20(35)+5sin(35))-(20(0)+5sin(0)) \\ =700+2.868=702.868 \, feet$

8 0

3 years ago