MATHEMATICS HIGH SCHOOL

A car travels 70 miles in 80 minutes. Which is its average speed per minute?a. 11 miles
b. 8.75 miles
c. 1.14 miles
d. 0.875 miles User: gopd

Answers

Answer 1

Answer:

Answer:

The average speed per minute of the car is :

d. 0.875 $(mi)/(min)$

Step-by-step explanation:

The average speed tells you the speed of an object over time, it can be expressed as:

$A_(s)=(Distance)/(Time)$

As the car travels 70 miles in 80 minutes, we can replace values in the equation:

Distance = 70 miles

Time = 80 minutes

$A_(s)=(Distance)/(Time)$

$A_(s)=(70miles)/(80minutes)$

$A_(s)=0.875(mi)/(min)$

Answer 2

Answer: 70/80 = miles per minute.
70/80 = 0.857 miles per minute

Answer: d. 0.875 miles

Related Questions

Sam has $40. He buys a book for $12.99 and a puzzle for $15.49.Which equations can be used to find how much money Sam has left?
Use the Binomial Theorem to expand (x - 2y)^3
there are 40 students in a class. 60% are boys. 25% of the boys have brown hair. how many boys have brown hair?
Write an equation that is parallel to 3x- 2y = 14 and passes through the point (-6, -11).
Factor this radical expression. 50a^2-10ab/20a^3b^3

If the length of an arc is 12 inches and the radius of the circle is 10 inches, what is the measure of the arc?I don't get this, keep getting it wrong. Can someone lead me through it???? PLZ

Answers

Assuming you are working in radians, the length of a circular arc is given by the definition of te radian:

$s =r\theta$ which can be re-arranged to $\theta = (s)/(r)$

Using supplied known values:
$\theta = (12)/(10) = 1.2 radians$

The measures of exterior angles of a regular polygon with n numbers of sides ______ as n increases.increases
decreases
remains the same,

Answers

the answer to this i increases.

The answer is Increases!

You roll a six-sided number cube. Which events are mutually exclusive? A) rolling a multiple of 2 and a multiple of 4
B) rolling a multiple of 3 and a multiple of 6
C) rolling an even number and an odd number
D) rolling a prime number and an even number

Answers

mutually exclusive is the events which couldn't happen at the same time, so I suggest you to go with this: C) rolling an even number and an odd number

Answer: C) rolling an even number and an odd number

Step-by-step explanation:

For any event A and B , we say they are mutually exclusive if they are disjoint such that there have no elements in common.

Let's check all the options:

A) rolling a multiple of 2 and a multiple of 4

Multiple of 2 on dice = 2,4,6

Multiple of 4 on dice = 4

They are not disjoint since 4 is the common element.

B) rolling a multiple of 3 and a multiple of 6

Multiple of 3 on dice = 3,6

Multiple of 6 on dice = 6

They are not disjoint since 6 is the common element.

C) rolling an even number and an odd number

Even number on dice = 2,4,6

Odd number on dice = 1,3,5

∴ They are disjoint event as they have no common element.

D) rolling a prime number and an even number.

Prime number on dice = 2,3,5

They are not disjoint since 2 is the common element.

An astronaut spends 53% of the day working, 0.1 of the day eating, 3/10 of the day sleeping, and the rest of the day exercising. Order the events by duration from least to greatest.

Answers

Answer:

0.1 of the day eating; 3/10 of the day sleeping; 53% of the day working

Step-by-step explanation:

convert all to decimals

0.1=0.1

3/10=0.3

53%=0.53

least to greatest= 0.1, 0.3, 0.53

XY is dilated by a scale factor of 1.3 with the origin as the center of dilation to create the image X'Y'. If the slope and length of XY are m and l respectively, what is the slope of X'Y'?

Answers

Answer: The slope of line X'Y'= m

Step-by-step explanation:

Given: XY is dilated by a scale factor of 1.3 with the origin as the center of dilation to create the image X'Y'.

The slope and length of XY are m and l respectively.

Dilation is a transformation that forms similar shape, but with a different size such that the corresponding sides of image and original shape are parallel to each other.

As the slope of parallel line are equal .

⇒ The slope of XY and X'Y' are equal.

Hence, the slope of X'Y' is m.

Hello,

Dilatations conserved parallelism

=> slope of X'Y'=m= slope of XY

Dilatations multiply length by the scale factor

==> |X'Y'|=1.3*|XY-=1.3*L

9. Zane owes his dad money for his cell phone that helost. So far, Zane has paid his dad $23, and he will pay
his dad an additional $45 each month until he has
repaid him for the phone. Which equation shows the
relationship between m, the number of months that
Zane has been making payments and t, the total
amount he has paid his dad?