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
HACTEHA [7]
3 years ago
13

QUESTION 6 OF 17 A Lyft driver has received 160 reviews with an average rating of 4.4 out of 5 stars. If the driver wanted to ra

ise his average star rating to 4.7, how many consecutive 5-star reviews does he need?
Mathematics
1 answer:
dexar [7]3 years ago
4 0
He needs 160 5-star reviews in a role. We can write a function to solve this problem. His current total stars is 4.4*160=704. Suppose he needs x more 5-star reviews, then his total stars will be 704+5x. 160+x is the new number of reviews, and the new average will be 4.7, so 4.7*(160+x)=704+5x. The solution is 160. Besides, if you want to get the answer really fast, you can see that 4.7 is right in the middle of 4.4 and 5, so you can immediately guess that the number of new 5-star reviews should be equal to the number of current reviews.
You might be interested in
2x + 3 = -x + 12 <br><br> Solve the equation, explanation is good.
raketka [301]

Answer:

3

Step-by-step explanation:

2x + 3 = -x + 12

subtract 3 from both sides

2x = - x + 9

add x to both sides

3x = 9

divide by 3

x = 3

7 0
2 years ago
Math is not my strong point..
Leya [2.2K]
Answer: 16 in

Explanation:

PQ/QR = PT/TS

PQ/4 = 12/3
PQ x 3 = 12 x 4 (cross multiply)
PQ x 3 = 48
PQ = 48/3
PQ = 16
6 0
3 years ago
Read 2 more answers
Casey is completing an experiment that requires 300 mL of potassium chloride (KCl) at a concentration of 0.2 M. But Casey's lab
gulaghasi [49]
What you first need to do is make an equation. Then plug that equation into photomath and you get your answer


3 0
3 years ago
What is Lim x → ∞ cos (x) ?
Sergeu [11.5K]

Answer:

non existent

Step-by-step explanation:

Hello, please consider the following.

\forall \ n \in \mathbb{N}\\\\cos((2n+1)\pi)=0\\\\cos(2n\pi)=1\\\\\text{So, there is no limit possible for } x \rightarrow +\infty

Thank you.

6 0
3 years ago
Write a story problem to go with the multiplication problem 3 x 7/8
Mariulka [41]

Answer:

Elias Nebiyu gives seven breads for his eight friends and he continues this give away for three days.

Step-by-step explanation:

3x 7/8 result is attached above.

4 0
2 years ago
Other questions:
  • If RS=3x + 1, ST= 2x - 2, and RT=64 find the value of x
    15·1 answer
  • 1.) what do values a h and k tell about the graph
    5·2 answers
  • There are 17 students in a class. On the day the test was given, John was absent. The other 16 students took the test, and their
    11·2 answers
  • What is the volume of the prism?
    7·1 answer
  • If 3 apps cost 12$ how how much would 5 cost
    12·1 answer
  • Andrew has a cell phone plan that provides 300 free minutes each month for
    8·1 answer
  • HEY I NEED SOME HELP I'LL GIVE YOU 26 POINTS!!!!!!<br> Which of the tables represents a function?
    11·1 answer
  • What is the area of the rectangle with the given dimensions? *
    6·1 answer
  • Find the circumference and area of a circle with radius of 5 centimeters. Write your answers in terms of pi.
    8·1 answer
  • MARKING BRAINLIEST!!<br><br> For what value of x is the figure below a rectangle?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!