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
mafiozo [28]
3 years ago
13

Heather can complete two problems in ten minutes, and when she started she had three problems done. Joel can complete three prob

lems in fifteen minutes, and when he started he had two problems done. If you include the number of problems that were complete when they started, when will they have completed between 30 and 50 problems?
Mathematics
1 answer:
Hunter-Best [27]3 years ago
3 0
If Heather can do 2 in 10 minutes, then that means that she can do 12 in 1 hour. If Joel can do 3 in 15 minutes, then it means that he can do 12 in 1 hour. Add the number of problems they can do total and that will go between 30 and 50. It is just "less than", not "less than or equal to" because you want to know when the total number goes between the numbers.
Therefore, the correct answer must be <span>30 < 24x + 5 < 50.</span>
You might be interested in
David rolls a number cube fifty times. The number 4 comes up twelve times. The number 3 comes up eight times. What is the experi
Maurinko [17]

Answer:

40%.

Step-by-step explanation:

Prob( Rolling a 4) = 12/50

Prob( Rolling a 3) = 8/50

When the combined probabilities contain  an 'OR' we Add the probability values:

Probability of a 3 or a 4  

= 12/50 + 8/50

= 20/50

= 2/5

= 40%.

5 0
3 years ago
Read 2 more answers
Safari isn’t helping so please help!!
Pepsi [2]

third option is the correct answer....

3 0
3 years ago
-3x+10y=-20 <br> -8x+2y=11 elimination method
Semenov [28]
(-75/37, -193/74) is your answer .-.
5 0
3 years ago
Tallest tower In the worl
stich3 [128]
Answer: Burj Khalifa - 828 m ( 2,717 ft)
7 0
3 years ago
Which is the midpoint of ? ___
Firdavs [7]
The midpoint is 1. Between A and B, there are a total of 14 marks on the number line. If you start at -6 and  move up 7 marks, you will land on 1. The number 1 is in the middle of -6 and 8.
7 0
3 years ago
Other questions:
  • At a dog park , there are 10 black dogs, 5 brown dog, 2 white dog, and 12 multi color dogs​
    11·2 answers
  • You earned 43 out of 50 points on your reading quiz. What percent of the points did you earn?
    5·2 answers
  • 2.8x = -9.24 <br>A. 12.04<br>B. -0.3030<br>C. 12.04<br>D. -3.3​
    13·2 answers
  • All ball is thrown into the air with an upward velocity of 24 ft/s. Its height h in feet after t seconds is given by the functio
    6·1 answer
  • A recipe uses 3 cups of flour and 2 cups of sugar write the ratio as a fraction
    5·2 answers
  • What is the range of the function shown in this table?
    11·1 answer
  • What is the solution to the following system of equations? y=4x-8 y=2x
    8·2 answers
  • Which sequence has a common ratio of 2? a{20, 40, 80, 160, 320, 640, …} b{20, 10, 5, 2.5, 1.25, 0.625, …} c{20, 15, 10, 5, 0, -5
    8·1 answer
  • What is the probability of rolling a 2 or a 4 on a 6 section spinner?
    12·1 answer
  • Find the value of f(3) for the function.<br> f(x) = - 7(x + 2)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!