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
hodyreva [135]
3 years ago
14

Theresa earned scores of 88 points, 84 points, 88 points, and 91 points on four tests. What is the lowest score she can get on t

he fifth test and still finish with an average score of 90 points?
96 points
97 points
98 points
99 points
Mathematics
2 answers:
Yanka [14]3 years ago
6 0
So u will do 88+84=172+88=260+91=351 and that is all four tests added up now u have to divide the answer by 4 because it was four tests averages
351/4=87.75 wich is aproxamately 88 
so with all four of them added wich is 351 u will add the answer choices so 351+96=447/5=89.4 wich is aproxamately 89
351+97=448/5=89.6 wich is aproxamately 90
351+98=449/5=89.8 wich is aproxamately 90
351+99=450/5=90
so i would say that 99 points is the one she needs to score because it isnt asking for aproxamately 
so it is 99 points
madam [21]3 years ago
6 0

Find the lowest score for the average. Let that number = x

There are 5 tests in all

(88 + 84 + 88 + 91 + x)/5 = 90

First, multiply 5 to both sides

(88 + 84 + 88 + 91 + x)/5(5) = 90(5)

88 + 84 + 88 + 91 + x = 450

Next, Combine like terms

351 + x = 450

Next, isolate the x. Subtract 351 from both sides

351 (-351) + x = 450 (-351)

x = 450 - 351

x = 99

99 is your answer

hope this helps

You might be interested in
I need to know what z = xm + y, for x
hram777 [196]

Answer: xm + y = z  xm = z - y  x = (z - y)/(m)

Step-by-step explanation: hope this helped :)

7 0
3 years ago
Read 2 more answers
Find the equation of a line passing through the point (2, 3) and having a slope of 3.
Delvig [45]

Answer:

The answer to your question is the letter B) y = 3x - 3

Step-by-step explanation:

Data

Point = (2, 3)

slope = m = 3

Process

To solve this problem just substitute the values given in the slope-point equation.

Formula

               y - y1 = m(x - x1)

   x1 = 2      y1 = 3

-Substitution

              y - 3 = 3(x - 2)

-Expand

              y - 3 = 3x - 6

-Solve for y

             y = 3x - 6 + 3

-Result

             y = 3x - 3        

5 0
3 years ago
The boy to girl ratio in the class was 5 to 4 if there were 27 students how many boxes were there draw a ratio box for the probl
pogonyaev

Answer:

15 boys

Step-by-step explanation:

8 0
3 years ago
A club raises $3,207 to buy stuffed animals for a local children's hospital. Each stuffed animal costs $17. What is the maximum
Ksju [112]

Answering:

188

Explaining:

To solve this problem, we must divide the total amount of money raised by the cost of the stuffed animals. Each stuffed animal costs $17. The club raised $3,207 to buy said stuffed animals. By dividing the money earned, which is also the money the club is able to spend, by the cost of a single/one stuffed animal, we will get how many stuffed animals the club can purchase with the money they currently possess. Our equation will look like this: 3,207 ÷ 17.

After dividing 3,207 by 17, we have the number 188.64705882. This can be rounded to the nearest tenth to create the simpler yet still accurate number 188.6.

Our final step is to round 188.6 down to the whole number it already has. (That is to say, simply cut off the fraction and remove it to get our answer.) This step must be done because we are buying stuffed animals in a real-world situation. The club would not be able to purchase part of a stuffed animal for a fraction of the cost, and the cost of the stuffed animals in the problem is a fixed value. This means that the fraction is irrelevant since we cannot purchase anything with it, effectively making it totally irrelevant to the answer. After removing the fraction from 188.6, we are left with 188.

Therefore, the maximum number of stuffed animals the club can buy is <em>188 stuffed animals</em>.

4 0
3 years ago
The volume of a sphere whose diameter is 18 cm is
prohojiy [21]

Answer:

  = 3052.08 cm^3

Step-by-step explanation:

Volume of a sphere is given by

V = 4/3 pi r^3

We know the diameter is 18

d = 2r

18 = 2r

Divide each side by 2

18/2 =2r/2

9 =r

V = 4/3 pi 9^3

V = 4/3 pi (729)

V = 972 pi

Approximating pi by 3.14

V =972 (3.14)

  = 3052.08 cm^3

5 0
3 years ago
Other questions:
  • If we start at the point (1,0) and travel once around the unit circle, we travel a distance of 2 pi units and arrive back where
    8·1 answer
  • A child standing 15 feet from the base of a lamppost casts a shadow 5 feet long. If the child is 4 feet tall and walks towards t
    12·1 answer
  • 17. Find the length of the midsegment XY.
    6·1 answer
  • Help me on this question pls!
    8·2 answers
  • Translate to a system of equations and solve.
    11·2 answers
  • 18. What is the value of j in the equation √ j + √ j + 14 = 3√ j + 10? A. 16 B. √ 2 C. 4 D. 2
    10·1 answer
  • The rectangular parking lot shown below has a total area of (4x + 36) square feet. Which could be the dimensions of the Parking
    9·1 answer
  • B) Given figure is a parallelogram ABCD of area 96-12 sq. cm.
    8·1 answer
  • What is the value of x in the equation -3x=4?
    7·1 answer
  • Which expression converts 100 inches per minute to feet per minute?<br> 100 inches<br> 60 minutes
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!