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
LUCKY_DIMON [66]
3 years ago
15

Dina and Masha started out on a 12 mi bike path at the same time. When Dina reached the end of the 12 mi, Masha still had 3 mi l

eft to bike. If Dina’s biking speed is 8 mph, find Masha’s biking speed.
Mathematics
2 answers:
andrew11 [14]3 years ago
7 0

Answer:

6mph

Step-by-step explanation:

Anna35 [415]3 years ago
6 0

Answer:

6 mph

Step-by-step explanation:

Use formula

D=r\cdot t,

where

D = distance

r = rate

t = time

In your case,

D = 12 mi

<u>Dina:</u>

D = 12 mi

r = 8 mph

t = ?

So,

12=8t\\ \\t=\dfrac{12}{8}=\dfrac{3}{2}=1.5\ hours

<u>Masha:</u>

D = 12 - 3 = 8 mi

r = ?

t = 1.5 hours

Then

9=1.5r\\ \\r=\dfrac{9}{1.5}=\dfrac{90}{15}=6\ mph

You might be interested in
What is the value of X?
IRISSAK [1]
X=12
Hope this helps
10x-20+6x+8=180º

6 0
3 years ago
A colleague has been tutoring six students in 11th grade to prepare for the ACT. This colleague has asked you to evaluate the pe
marissa [1.9K]

We have been given that a colleague has been tutoring six students in 11th grade to prepare for the ACT. Student scores were as follows: 20, 18, 16, 15, 23, 20. We are asked to find the mean of the ACT scores.

We will use mean formula to solve our given problem.  

\text{Mean}=\frac{\text{Sum of terms}}{\text{Number of terms}}

\text{Mean}=\frac{20+18+16+15+23+20}{6}

\text{Mean}=\frac{112}{6}

\text{Mean}=18.66666

Upon rounding to nearest whole number, we will get:

\text{Mean}\approx 19

Therefore, the mean of the ACT scores is 19 and option 'c' is the correct choice.

5 0
3 years ago
Select all the correct answers.
amid [387]

Answer:

It costs $15 a month to play the video game.

The initial cost is $45.

The y-variable represents the cost in dollars.

The x-variable represents the number of months.

Step-by-step explanation:

If you break the function down, you're going to have:

<u>Total = Monthly Cost + Initial Cost</u>

In this case, 15x is your monthly cost, as you can think of x as the number of months meaning:

  • 15 for the first month (x = 1)
  • 30 for the second month (x = 2)
  • 45 for the third month (x = 3), and so on

Our initial cost is always going to be a set amount, thus our constant, $45.

This leaves y as our total, which makes sense, as it's all alone on one side of the equation, where as all the costs are bunched together on the right side.

Hope this helps!

6 0
2 years ago
Read 2 more answers
Mitch wrote the subtraction below what mistake did Mitch make. What is the correct answer
PtichkaEL [24]

Mitch did not line the place values up right


8 0
3 years ago
jim uses 3 cups of peaches to yield 4 jars of peach jam 4 jars of jam. He also makes strawberry-peach jam. He uses equal amounts
Levart [38]
Jim will probably need 6 cups of strawberries to yeild 10 jars
3 0
3 years ago
Other questions:
  • Fins the product of (3s+2t)(3s-3t)
    7·2 answers
  • In Triangle JKL the measure of angle J = 40 and the measure of angle L is 3 times the measure of angle K. Find the measure of an
    6·1 answer
  • What is -4 {2 - y} + 3y = 3 {y - 4}
    11·1 answer
  • Is 3.61 less than 3.87
    15·1 answer
  • Which of the followinng has zero width and an infinite lenght?
    6·1 answer
  • Classify the triangle if two angles in the triangle measure 40 and 50°.​
    15·2 answers
  • you baby-sit for 7.50 per hour and get a 4 dollar tip. your earnings E are a function of the number of hours H you baby-sit. wri
    13·1 answer
  • Please help me with this homework
    12·1 answer
  • I want a correct answer you can take your time. If I was born on December 24, two thousand and four and my classmate was born on
    9·1 answer
  • Draw a number line . Locate each integer on the number line.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!