1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sashaice [31]
2 years ago
15

Marshall left home biking at a constant rate of 20 mph. One hour later, it looked like it may rain, so his friend, brett, set ou

t in his car to pick him up. Brett drove at a constant rate of 60 m[h. How many hours will marshall have been riding his bike by the time brett catches up to him
Mathematics
1 answer:
Lana71 [14]2 years ago
4 0

Answer:

0.5

Step-by-step explanation:

First, we need to find how far ahead Marshall was.  Since he had been biking at 20 mph for one hour, he had gone 20 miles.

Next, we need to find how long it will take Brett to catch up to Marshall.  In order to do this, we need to find how much faster Brett is going than Marshall.  We do this by subtracting Marshall's speed from Brett's speed.

60 - 20 = 40.  So, Brett is catching up to Marshall at 40 mph.  Now, we figure out how long it will take for someone going 40 miles per hour to go 20 miles.  We find this by dividing 40 miles per hour by 20.  This is equal to 1/2 hour.  So, it will take Brett 0.5 hours to catch up to Marshall.  This is the same as A, so A is the correct answer.

We can check our answer by seeing how far Marshall and Brett will have gone.  Marshall will have been biking for 1.5 hours, so we multiply 20 * 1.5 = 30.  Marshall went 30 miles.

Brett drove for .5 hours at 60 mph, so he went 30 miles.  Since Brett and Marshall went the same distance, our answer is correct.

You might be interested in
6•72,749,973,947,937=?
g100num [7]
I used a calculator and got  <span>4.3649984e+14</span>
7 0
3 years ago
Read 2 more answers
How many kilograms are in 850.0 grams
mart [117]

Answer:

0.85

Step-by-step explanation:

3 0
2 years ago
Ex. 11 An apple computer has a retail price of $1000. Jim's House of Electronics is having a "20%-off sale",
Elina [12.6K]
He would have to pay $560 because if you take 20% off of the computer using the equation 1000 - (1000 * 0.20) you get 800. This means that the 30% coupon is applied to $800, so using the same template as the equation above, we can do 800 - (800 * 0.30) to get a final answer of 560.
8 0
1 year ago
Find the missing side lengths. Leave your answer as radicals in simplest form.
Ronch [10]

Answer:

Hence x = y = 2

Step-by-step explanation:

Using the SOH CAH TOA identity

Hypotenuse = 2√2

Opposite = x

theta = 45

Sin theta = opp/hyp

Sin 45 =x/2√2

1/√2 = x/2√2

x = 2√2 * 1/√2

x = 2

To get y we will use the pythagoras theorem;

(2√2)² = x² +y²

(2√2)² = 2²+y²

8 = 4 + y²

y² = 8-4

y² = 4

y = √4

y = 2

Hence x = y = 2

7 0
3 years ago
−2.8+2.4+7.8−2.8<br><br>I dont know how to solve this expression
Nataliya [291]

Step-by-step explanation:

-2.8 +2.4=-.4

-.4+7.8=7.4

7.8-2.8=5

i hope this helps ; )

6 0
2 years ago
Other questions:
  • Water stations will be placed every 400 meters of a 5 - kilometer race. How many water stations are needed? (hint 1 kilo=1,000 m
    5·1 answer
  • Did I use the right equations to find x?
    6·2 answers
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!<br><br> Factor.
    6·2 answers
  • Tina collects 487 seashells and Wayne collects 345. After giving 40 seashells to Calvin, they put the remainder equally into 36
    13·1 answer
  • pablo has $4200 to invest. pablo's goal is to have $5000 after 4 years. is this possible if he invests with a rate of return of
    10·2 answers
  • What is 1.234 + 8.89?
    11·2 answers
  • Which graph has a slope of -3?
    12·2 answers
  • Please answer correctly !!!!!<br> Will mark Brianliest !!!!!!!!!!!!!!
    10·2 answers
  • True or false the opposite sides of a trapezoid are congruent
    15·2 answers
  • Convert 1/2 fractions into decimal numbers​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!