Ask question

Ask question

All categories

3 years ago

13

Cynthia is training to run the 100 yard dash. The first week she ran it is 14.0 seconds. The third week she ran it in 13.1 secon

ds. What is the percent change from week 1 to week 3 rounded to the nearest tenth of a percent?

1 answer:

ale4655 [162]3 years ago

8 0

Answer:

6.43% change

Step-by-step explanation:

Have a good one

You might be interested in

suppose a study estimated that 78% of the residents of a town (with an error range plus/minus12 percentage points at 95% confide

abruzzese [7]

the Answer is 69% -Apex

4 0

3 years ago

Read 2 more answers

Miguel is drawing right triangle ABC in a coordinate plane. Where could point C be located to complete the right triangle?

wariber [46]

Answer:

it B (3,2)

Step-by-step explanation:

6 0

3 years ago

The coordinates of point T are (0,5). The midpoint of ST is (3,-5). Find the coordinates of point S. (Type an ordered pair

Sholpan [36]

The coordinates are (6,-10)

4 0

3 years ago

A bicycle has a listed price of $615.98 before tax. If the sales tax rate is 9.75%, find the total cost of the bicycle with sale

Marianna [84]

Step 1
Write your problem.
537.95 x 9.5% = ?

Step 2
Convert the % to a decimal:
9.5% to 0.095

Step 3
Rewrite the problem with decimal replacing the percentage.

Now the problem looks like this:
537.95 x 0.095 = 51.11
This problem gives the amount of the tax.

Step 4
Add the original price with the tax amount:
537.95 + 51.11 = $589.06 (total cost)

7 0

3 years ago

Solve the equation on the interval [0, 2π). <br><br> cos x + 2 cos x sin x = 0

vekshin1

Take a common factor of cos(x)
$\cos(x) (1 + 2 \sin(x) ) = 0$
then by zero multplication rules
$\cos(x) = 0$
$x = \frac{\pi}{2} \: x = \frac{3\pi}{2}$
and when
$1 + 2 \sin(x) = 0$
so
$2 \sin(x ) = - 1$
$\sin(x) = \frac{ - 1}{2}$
so
$x = \frac{3\pi}{2} - \frac{\pi}{3}$
and
$x = \frac{3\pi}{2} + \frac{\pi}{3}$

6 0

3 years ago