All categories

3 years ago

It takes 2 hours to drive 80 miles and 4 hours to drive 160 miles. Find the rate of change. I need this asap

Mathematics

1 answer:

natita [175]3 years ago

5 0

Answer:

40 miles per hour

Step-by-step explanation:

80 divided by 2 is 40

160 divided by 4 is 40

You might be interested in

Victoria had $200 in her account at the end of one year. At the first of each subsequent year she deposits $15 into the account

telo118 [61]

Answer:

A(t) = 200+15t(1+0.02)^{t}

Step-by-step explanation:

Since the interest is calculated on the new balance every year.

Hence the formula used for compound interest is:

A = P(1+ $\frac{r}{n}$ ^{nt}

where, A =Amount after t years

P =Principal amount

200 is the initial balance and Since, here the $15 is added to the balance each year. Therefore, P = 200+15t

r = rate each year (0.02)

t = time (in years) (t)

n = no. of times the interest is compounded in a year (n=1)

Therefore, the recursive formula is:

A(t) = 200+15t(1+0.02)^{t}

6 0

3 years ago

Read 2 more answers

Answer choice D.) is 13/5 Please help, 10 points up!

Elan Coil [88]

c thats the answer :)

8 0

3 years ago

Find the slope and y-intercept? Please help y = -2x - 1

PtichkaEL [24]

Answer: Slope is -2 and y int: -1

Step-by-step explanation: y=mx+b is the formula for finding slope & y intercept.

It was in your equation m=-2 and -1 being y intercept

3 0

3 years ago

Read 2 more answers

Analyze Corey’s work to find his error. What is Corey’s mistake? He substituted 80 for x instead of y. He should have added 88.2

Anni [7]

x is the temperature and y is the number of swimmers. If there are 80 swimmers, then y = 80 instead of x = 80

This is how Corey should have solved

y = 1.505*x - 88.21

80 = 1.505*x - 88.21 <--- replace y with 80

1.505*x - 88.21 = 80

1.505*x = 80 + 88.21 <--- add 88.21 to both sides

1.505*x = 168.21

x = 168.21/1.505 <--- divide both sides by 1.505

x = 111.767

x = 111.8

If there are 80 swimmers at the pool, then the possible outside temperature is roughly 111.8 degrees F. This temperature seems awfully large, so it's possible that Corey's regression equation has limited scope; in other words, it isn't too useful if x is outside a given interval

<h2> IF YOU DONOT WANT TO READ SO MUCH THEN </h2>

PLEASE SEE THE ATTACHMENT 

4 0

3 years ago

He;lp The formula for the area of a circle is A = πr2, where A = area and r = radius.

kogti [31]

Answer:

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers