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
d1i1m1o1n [39]
3 years ago
12

Christian wants to make an A in his class. There are 5 exams this year, and he has taken 4 of them. His grades were 84, 88, 95,

and 104. What grade must Christian earn on the last exam to get an average of at least a 90?
Mathematics
1 answer:
ioda3 years ago
3 0

Answer:

last test grade=x     x ≥ 79 so 79%

Step-by-step explanation:

(84/5)+(88/5)+(95/5)+(104/5)+(x/5) ≥ 90

Simplify: (371/5)+(x/5) ≥ 90

Subtract (371/5) from both sides

Then you have (x/5) ≥ (79/5)

Then multiply both sides by 5 and you have x ≥ 79

P.S. If it was helpful please consider giving me brainliest. =)

You might be interested in
The SAT mathematics scores in the state of Florida for this year are approximately normally distributed with a mean of 500 and a
creativ13 [48]
99.7%

This is because the likelihood of a point being within 2 SDs of the mean is 99.7%. 
7 0
4 years ago
Please help me and explain this.
Zina [86]
You are supposed to answer where the function, h(x), is decreasing. In other words, where is “y” decreasing.

In this graph, I believe it would be from (-3,4)U(8,infinity). I hope this helps.
8 0
3 years ago
Brittany removed half of the total number of marbles from her bag, and gave one fourth of the remaining marbles to her friend. W
patriot [66]

The fraction of the total number of marbles is left in the bag after removing and giving part to her friend is 3/8

<h3>Fraction</h3>

let

  • Number of marbles in her bag = x
  • Number of marbles removed from her bag = 1/2x

Remaining marbles = x - 1/2x

= (2x-x) / 2

= x/2

= 1/2x

Number of marbles given to her friend = 1/4 of 1/2x

= 1/4 × 1/2x

= 1/8x

Number of marbles left in the bag = Remaining marbles - Number of marbles given to her friend

= 1/2x - 1/8x

= (4x-x) / 8

= 3x/8

= 3/8x

Learn more about fraction:

brainly.com/question/11562149

#SPJ1

3 0
2 years ago
The table below shows the cube roots of different numbers: Number (x) 27 −27 125 −125 Cube root of the number (y) 3 −3 5 −5
kolbaska11 [484]
Part A

The table does represent y as a function of x because each input (values of x) related to exactly one output. Refer to the diagram below.

Part B

We have
f(x) = 925x + 1000
f(24) = 925 (24) + 1000
f(24) = 23200

f(24) represent the value of renting for 24 months

5 0
3 years ago
PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Strike441 [17]

I hope this is right

220.5 cubic feet

3 0
3 years ago
Other questions:
  • How do you tell whether the percent of a number will be greater than, less than, or equal too the number
    12·1 answer
  • Use the quadrant system to find the area of the polygon. A. 52 square units B. 45 square units C. 36 square units D. 38 square u
    10·2 answers
  • What is 8r + 12p - 7 - 3p and how to get it
    15·1 answer
  • Two polygons are similar. The perimeter of the smaller polygon is 66 feet and the ratio of the corresponding side lengths is 3/4
    11·1 answer
  • -17-(-1)+2/3+(-1/2) or negative seventeen minus (negative one) plus two thirds plus (negative one half)
    13·1 answer
  • Ernest has 3/4 of a yard of ribbon. She used 1/2 of it to wrap a gift. How much ribbon did she use
    11·1 answer
  • Write 1/6 as a recurring decimal with working out
    7·2 answers
  • What would be a sound, simple, straightforward way to describe IQR (Interquartile range)
    9·1 answer
  • Write the value of a in terms of b if the line joining (b,20) and (4,a) has a slope of −5 .
    6·1 answer
  • The point (-5, 3) is reflected across the x axis. What are the coordinates of this reflection? Group of answer choices
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!