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4 years ago

13

Tori spent 9 minutes on the phone while routing 3 phone calls. In all, how many phone calls does Tori have to route to spend a t

otal of 12 minutes on the phone? Solve using unit rates.

1 answer:

Vesna [10]4 years ago

8 0

9 minutes please please tell him that

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What is the value of x enter your answer in the box x=

lions [1.4K]

Answer:

<u>x = (3√34 + 1)/5 units</u>

Step-by-step explanation:

Let's solve for x, using the Pythagorean theorem, this way:

BC is the Hypotenuse of the triangle ABC

BC² = 15² + 9²

BC² = 225 + 81

BC² = 306

BC = √9 * 34

BC = 3 √34

Now, we can substitute and solve for x, this way:

BC = 3x + 2x - 1

3 √34 = 3x + 2x - 1

3√ 34 + 1 = 5x

<u>x = (3√34 + 1)/5 units</u>

3 0

3 years ago

What is the value of Point C on the number line below?

natta225 [31]

Answer:

0.28

Step-by-step explanation:

All you need to do is count.

0.20, 0.21, 0.22, 0.23, 0.24, 0.25, 0.26, 0.27, 0.28, 0.29, 0.30

<u>C</u>

Point C sits on the point 0.28.

4 0

3 years ago

Flying against the jetstream, a jet travels 4960 miles in 8 hours. Flying with the jetstream, the same jet travels 2940 miles in

oksian1 [2.3K]

Answer:

Velocity of jet in still air is 800mph hour and velocity of wind is 180mph

Step-by-step explanation:

Let the velocity of jet in still air be x miles per hour and velocity of wind be y miles per hour.

#Jet's velocity against jet-stream is:

$v_i=\frac{4960}{8}\\\\=620\ mph$

#Jet's velocity with jet-stream:

$v_{ii}=\frac{2940}{3}\\\\=980\ mph$

#The velocity against jet-stream is x-y and with jet-stream is x+y:

$x-y=620\\\\x+y=980\\\\\#add \ the \ two \ equations\ to \ eliminate \ y\\\\2x=1600\\\\x=800\\\\y=980-800=180$

Hence,velocity of jet in still air is 800 mph hour and velocity of wind is 180 mph.

3 0

3 years ago

Which are factors if 15y^2-5y?

Alenkinab [10]

225-5y ...............

7 0

3 years ago

During the cold winter months, a sheet of ice covers a lake near the Arctic Circle. At the beginning of spring, the ice starts t

kobusy [5.1K]

Answer:

2.5 meters each week.

Step-by-step explanation:

Plug in 6 weeks for <em>t </em>and your equation would be s = -2.5(6) + 4. After solving you would get 2.5 meters.

8 0

3 years ago