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
Leya [2.2K]
3 years ago
7

On a particular day, the wind added 4 miles per hour to Jaime's rate when she was rowing with the wind and subtracted 4 miles pe

r hour from her rate on her return trip. Jaime found that in the same amount of time she could row 54 miles with the wind, she could go only 30 miles against the wind.What is her normal rowing speed with no wind?
Mathematics
1 answer:
larisa [96]3 years ago
8 0
Nice so
remember
t=d/s
a(b+c)=ab+ac

time=distance/speed

lets say s=jamie's normal speed
speed agains wind=s-4
speed with wind=s+4

30 miles is agains wind
distance is 54 with wind


t=d/s
t=30/(s-4)
t=54/(s+4)

since they are both equal to t, set them equal to each other

30/(s-4)=54/(s+4)
multipliy both sides by (s+4)(s-4)
30(s+4)=54(s-4)
distribute
30s+120=54s-216
subtract 30s from both sides
120=24s-216
add 216 to both sides
336=24s
divide both sides by 24
14=s


answer is 14 miles per hour without wind
You might be interested in
The circumference of a circle is 25.12 yards. What is the radius of the circle?
ANEK [815]
The circumference is pi times diameter, so put 25.12 over pi to get the diameter. That would be 8. Then divide by 2 to get the radius. That would be 4
6 0
2 years ago
Anyone know this?? I’m confused..
Lelechka [254]

Answer:

jgh

side side side axioms

not sure

4 0
2 years ago
Read 2 more answers
If the sum of a number and seven is doubled, the result is one less than the number. find the number
lawyer [7]
(n + 7)2 = n - 1
2n +14 = n - 1
2n - n +14 = n - n - 1
n + 14 -14 = -1 - 14
n = -15
(-15 + 7)2 = -15 - 1
(-8)2 = -16
-16 = -16
7 0
3 years ago
A certain juggler usually tosses balls vertically to a height 3.8 yd. To what height must they be tossed if they are to spend tw
Maksim231197 [3]

Answer:

15.2 yards

Step-by-step explanation:

3 0
3 years ago
Please help! I need this to pass. If you are trying to get points please just chose a different question and don't mess with min
Hunter-Best [27]

Given:

Radius of the cylinder = 2 cm

Height of the cylinder = 3 cm

To find:

The surface area of the cylinder.

Solution:

The surface area of a cylinder is:

A=2\pi rh+2\pi r^2

Where, r is the radius and h is the height of the cylinder.

Putting r=2,h=3,\pi = 3.14, we get

A=2(3.14)(2)(3)+2(3.14)(2)^2

A=37.68+25.12

A=62.8

Therefore, the surface area of the cylinder is 62.8 square cm.

3 0
2 years ago
Other questions:
  • What is 10 1/2 divided by 2 1/4
    7·2 answers
  • I need someone to help me solve this ASAP!!!
    6·1 answer
  • Look at both pics pls and help me with the question <br> thanks
    7·1 answer
  • Write 0.31 as a fraction
    15·2 answers
  • A Juicy 100 points! Simple MATH question! Btw Brainliest will be given asap!
    8·1 answer
  • If you are answering the questions:Evaluate the expressions and dont do #16
    14·1 answer
  • Fasfasdasfsadasfsadsfasdsad
    11·1 answer
  • HELP!!! BRAINLYIEST!
    5·1 answer
  • Given that angle a = 25° and angle b = 60°, work out X.
    14·1 answer
  • Hello I might seem but what is (r35) + x -89+(r34)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!