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
patriot [66]
3 years ago
7

100 POINTS!!!!!!! I WILL GIVE BRAINLIEST!

Mathematics
1 answer:
abruzzese [7]3 years ago
3 0

Answer:

  • 8.4 miles

Step-by-step explanation:

Let the speed in the morning be s, then in the evening it is s - 4

<u>The distance is equal both directions:</u>

  • 45 min *s = 1 hr 10 min *(s - 4)

<u>Time in hours:</u>

  • 45*1/60*s = (1 + 10*1/60)(s - 4)
  • 3/4s = 7/6s - 7/6*4

<u>Multiply all terms by 12 to clear fraction:</u>

  • 9s = 14s - 56
  • 5s = 56
  • s = 56/5
  • s= 11.2 mph

<u>The distance is:</u>

  • 3/4*11.2 = 0.75*11.2 = 8.4 miles
You might be interested in
Please check my function,
seropon [69]

Answer:

yes, i think it is correct :)

Step-by-step explanation:

6 0
3 years ago
Lerato receive an increase of 5% on her current salary of R12500 per month. What will her new salary be after the increase
Romashka [77]
$12,500 x 5% = $625.
$12,500 + $625 = $13,125.
5 0
3 years ago
What happens to the volume of a square pyramid if the base dimensions remain the same, but the height is cut to one third of the
Nadya [2.5K]
The volume becomes 1/3 of the original. With a rectangular base, volume of a pyramid is V=(length*width*height)/3. Cutting the height to 1/3 of the original length will make the total volume 1/3 of the original volume.
5 0
3 years ago
How much 78 octane gas and 91 octane gas should be blended to make 13 gallons of 85 octane gas
Tatiana [17]
13 x 85 = 1105
78 + 91 = 169

169 / 1105 = 6.5
5 0
3 years ago
Read 2 more answers
I don't get this... someone explain this plum thing please...... Before a plum is dried to become a prune, it is 92% water. A pr
taurus [48]

Answer:

21.74 But if it tells you to round I would round to 21 lbs

Step-by-step explanation:

its basically just a ratio of 92 to 20

92/20=4.6

92-20=72% the amount that is lost

so given that the plum is 100 lbs we know that 72% is depleted

(72/92 = .78)X100= 78 lbs depleted

Lastly 100-78 =22 for the remaining weight of the prunes.

4 0
3 years ago
Other questions:
  • 50 Points, thanks for the help :)
    7·1 answer
  • The product of 2 and a number increased by 7 is -36
    15·1 answer
  • Which expression is equivalent to 4.8+2.2w−1.4w+2.4 ?
    9·1 answer
  • the width of the rectangle is 5 inches less than it's length, and the area is 84 square inches. what are the length and width of
    9·1 answer
  • In a chess match, a win counts as 1 point, a draw counts as ½ point, and a loss counts as 0 points. After 15 games, the winner w
    11·1 answer
  • 1) Sally needs $20,000 in 4 years. She has $10,000 to invest. If interest is compounded continuously, what rate is required for
    14·1 answer
  • Annie was eating starburst candy . She has eaten 34% red,1/5 yellow 3/10 pink and the the rest were orange . What color had the
    14·1 answer
  • If a machine that prints designs on T-shirts prints 500 shirts in 3 hours, how many hours will it take to print designs on 1,800
    15·1 answer
  • A school allots £1500 to spend on a trip to the theatre.
    12·2 answers
  • Need to find out how to solve 4/p=11/2
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!