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
VladimirAG [237]
3 years ago
9

A student's grade for the four quarters are 95, 83, 91, and 85. What does the student need to earn on the final exam to have an

overall B average (85 to 92 inclusively) for the year?
Mathematics
1 answer:
gulaghasi [49]3 years ago
3 0

Answer:

The least score the student can get is 71 to get an overall B average at the end of the year.

Step-by-step explanation:

Let the score she needs to get be = x

We now have to take the mean of all the five subjects <em>(including x)</em> and equate it to the least score she can have to get a B grade.

Let us take the least score the student needs to get a B grade to be 85

Mean of all 5 scores =

\frac{95+83+91+85+x}{5}=85

\frac{354+x}{5} =85

354+x = 425

x = 71

The least score the student can get is 71 to get an overall B average at the end of the year.

You might be interested in
Elina’s friend Luke said that he could make more rectangles with 24 tiles then Elaine’s 10 tiles do you agree with Luke’s explai
icang [17]
No, because it needs to equal 25, not 24.
5 0
3 years ago
Read 2 more answers
Simplify the expression. 8(s-1)
TEA [102]

Answer:

8s-8

Step-by-step explanation:

Use the distributive property: #(a-b) = #*a - #*b. In this case 8s - 8.

Hope it helps!

6 0
3 years ago
Read 2 more answers
Finding the function of y=-2/3x +2​
nordsb [41]

Answer:2 x + 3 y = 6

Step-by-step explanation:

in standard form

7 0
2 years ago
Opal makes $15 per hour working for a photographer. She also coaches a competitive soccer team for $10 per hour.
Jlenok [28]

The system of inequalities that represents the given situation are x + y ≤ 20 and 15x + 10y ≥ 90.

The parameters needed to model the inequalities;

  • amount made by Opal working for a photographer = $15 per hour
  • amount made in the soccer team = $10 per hour
  • minimum amount Opal needs to make a week = $90
  • maximum number of hours Opal needs to work = 20 hours

Let the number of hours Opal works for a photographer = x

Let the number of hours Opal works in soccer team = y

The first system of inequality in the given situation is represented as;

x + y ≤ 20

The second system of inequality in the given situation is represented as;

15x + 10y ≥ 90

Thus, the system of inequalities that represents the given situation are x + y ≤ 20 and 15x + 10y ≥ 90.

learn more here: brainly.com/question/9774970

7 0
2 years ago
How do I solve 3= log8+3log x?
taurus [48]

<span>3 = log(8) + log(x³) </span>

<span>When adding logs, you are multiplying the terms altogether. </span>

<span>3 = log(8x³) </span>

<span>Then, by log_a b = n ==> aⁿ = b: </span>

<span>10³ = 8x³ [Since the base is not given, I assume that the base is 10] </span>
<span>1000 = 8x³ </span>

<span>Finally, solve for x. </span>

<span>1000/8 = x³ </span>
<span>x³ = 125 </span>
<span>x = (125)^(1/3) . . .Set both sides to the power of 1/3. </span>
<span>x = 5 </span>

<span>Hence, x = 5. </span>
3 0
2 years ago
Other questions:
  • Jack wants to use a circular rug on his rectangular office floor to cover two small circular stains, each less than π/100 square
    13·1 answer
  • A bathtub is draining at a constant rate. After 2 minutes, it holds 28 gallons of water. Three minutes later, it holds 7 gallons
    7·2 answers
  • Anybody knows this one
    8·2 answers
  • Johanna rode her bike 7 miles to a lake . She rode 3/4 of distance to the lake before lunch. How many miles did johanna ride bef
    11·2 answers
  • Five-year-old students at an elementary school were given a 30-yard head start in a race. The graph shows how far the avera
    8·1 answer
  • A family of 4 spent $104 for tickets to a concert on Friday and they spent $140 for tickets to a dinner theater on Saturday. All
    15·1 answer
  • A doctor is measuring the average height of male students at a large college. The doctor measures the heights, in inches, of a s
    5·1 answer
  • A restaurant serves custom-made omelets, where guests select meat, cheese, and vegetables to be added to their omelet. There are
    14·1 answer
  • Daniel bought a bag of marbles at the school garage sale it contains five red marbles four yellow marbles five Green marbles and
    12·1 answer
  • Help please thank you
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!