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Zolol [24]
3 years ago
10

The expression D over T can be used to find the average speed of an object that travels a distance D in time T what is a cars av

erage speed if it travels 145 miles in 2.5 hours
Mathematics
1 answer:
Mashutka [201]3 years ago
6 0
So, you basically plug the values into the formula you have been given. D divided by T gives you the average speed.
We know the distance D is 145 miles and the Time T is 2.5 hours.

So, 145/2.5=58

Therefore, the cars average speed was 58 miles / hour
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harina [27]

Answer:

m(\widehat {RS})+m(\widehat{ST})+m(\widehat{TQ}) + m(major\ arc RQ) = 360\ degree

Step-by-step explanation:

As we can see in the figure that

The R, S, T ,and Q are the points on the circle O.

Also

The measurement of the circular arc is equivalent to the measurement of the angle at the center of the arc

So by this

m(\widehat{RS})=m(\angle ROS)

m(\widehat{ST})=m(\angle SOT)

m(\widehat{TQ})=m(\angle TOQ)

m(major arc RQ) = m(∠QOR)

So,

m(\widehat {RS})+m(\widehat{ST})+m(\widehat{TQ}) + m(major\ arc RQ) = m(\angle ROS)+m(\angle SOT)+m(\angle TOQ)+m(\angle QOR)

And as we know that

All angles sum = 360°

Therefore

m(\widehat {RS})+m(\widehat{ST})+m(\widehat{TQ}) + m(major\ arc RQ) = 360\ degree

8 0
3 years ago
PLEASE HELP!!!!!! the sum of a number times 10 and 15 is at most -17
Brilliant_brown [7]

Let the number = x

Writing the equation you have:

10x + 15 <= -17

Solve for x

Subtract 15 from both sides:

10x <= -32

Divide both sides by 10:

X <= -32/10

Simplify:

X <= -16/5 as a fraction or -3.2 as a decimal

3 0
4 years ago
A jar contains 3 pennies, 5 nickels, 4 dimes, and 6 quarters. of a coin is selected at random, what is the probability of select
Artemon [7]
Hey there! :)

There are 3 pennies
There is a total of 18 coins; 3 + 5 + 4 + 6 = 18

3 ÷ 18 = 0.16666666667 = 0.17

Your answer is 1/6 or 0.17

Hope this helps :)
3 0
3 years ago
Below are the graphs of the functions y=2x and y3x What is the same about both lines?​
Yanka [14]
C they rise upward toward the right
5 0
2 years ago
The figures are similar. The ratio of the perimeters is 8 : 5. Find X
vova2212 [387]

Answer:

Two figures that have the same shape are said to be similar. When two figures are similar, the ratios of the lengths of their corresponding sides are equal. To determine if the triangles below are similar, compare their corresponding sides.

3 0
3 years ago
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