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
aleksklad [387]
3 years ago
15

How many fewer minutes does it take to drive 35 miles at 30 MPH than to drive the same distance at 25 mph

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
3 0
To drive 35 miles at 30 mph takes (35/30) hour.
To drive 35 miles at 25 mph takes (35/25) hour.

The difference is  (35/25) minus (35/30).

In order to add or subtract fractions, they need a common denominator.
The smallest one available for this situation is 150 .

(35/25) = 210/150
(35/30) = 175/150

Now we can subtract:    (210/150) - (175/150) = 35/150 of an hour.
(35/150  hour) x (60 min/hr) = (35 x 60) / (150) min = 14 minutes.

==>  It's beginning to look like the answer is NOT 40minutes.
Let's do it again, with a less-elegant but more-intuitive approach:

Time to drive 35 miles at 30 mph = 35/30 = 1-1/6 hours = 70 minutes.
Time to drive 35 miles at 25 mph = 35/25 = 1.4 hours = 84 minutes.

<span>Time saved by driving at 30 mph instead of 25 mph = (84 - 70) = 14 minutes. </span>
You might be interested in
(a) A square has a perimeter of 20 m. What is the length of each side?
Goshia [24]

Answer:

A= 5

B= 3

Step-by-step explanation:

A= 5 +5+5+5= 20

B= 3 (length) x 3 (width)

5 0
2 years ago
Help me please.
mart [117]

Answer:

∧ABC ≈ ∧PQR  Angle-Angle Similarity Postulate

∧  ABC ≈ ∧  DEF   Side-Side-Side Similarity Postulate

Step-by-step explanation:

5 0
2 years ago
Nick and Monica are paid $41.25 for their work. Nick worked 2.5 hours, and Monica worked 3 hours. They split the money according
vlada-n [284]

Answer:

BRIANLIEST PLZ

N = 18.75

M = 22.5

Step-by-step explanation:

Need the ratio of money paid to each. We know how the ratio of time is divided so we can use this ratio to find the amount paid.

T = t1 + t2 = 2.5 + 3 = 5.5

r1 =2.5/5.5

r2 = 3/5.5

Nick = r1 * 41.25 = 18.75

Monica = r2 * 41.25 = 22.5

7 0
3 years ago
What number should be added to both sides of the equation to complete the square?<br> x^2+ 8x = 4
Sonbull [250]

Answer:

16

Step-by-step explanation:

use the formula (b/2)^2 to find what number to add to each side of the equation

3 0
3 years ago
Is 3/7 greater than 2/5?
Alexus [3.1K]

Answer:

Yes, 3/7 is bigger than 2/5

Step-by-step explanation:

First, put the fraction side by side

\frac{3}{7}  \frac{2}{5}

Multiply diagonally. So multiply 3 × 5 and 2 × 7

3 × 5 = 15

2 × 7 = 14

15 >14

\frac{3}{7}  > \frac{2}{5}

4 0
3 years ago
Other questions:
  • Tim owes $125 for for May.It is January. How much money does he need to get each month till May to reach the $125 for May?
    5·2 answers
  • Victor has a credit card with an APR of 13.66%, compounded monthly. He currently owes a balance of $1,349.34. Assuming that Vict
    10·2 answers
  • PLZ HELP!!!!!! (WILL GIVE BRAINLIEST!!!!)<br> Number 4 only
    11·1 answer
  • How to do this in math
    5·1 answer
  • A rectangle is 1/2 ft long and 3/4 ft wide. What is the area of the rectangle? Enter your answer as a fraction in the box.
    8·2 answers
  • What is 7/8 as a decimal
    6·2 answers
  • Marking Brainliest for first right answer
    13·2 answers
  • Pls can someone help me ? It’s urgent :((
    13·2 answers
  • Determine the smallest possible value if 10500 is a perfect square a perfect square<br>​
    6·1 answer
  • There are 1,428 reptiles at Savannah’s Reptile House. 4
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!