A student has received the following test scores: 71%, 89%, 72%,
84% and 83%. What is the lowest score/grade they can receive
on the next test to maintain at least an 80% average?

Answers

Answer 1

Answer: 81%

Step-by-step explanation:

From the question, we are informed that a student received the following test scores: 71%, 89%, 72%,

84% and 83% in 5 tests and the student wants to maintain an average of 80%.

The lowest score/grade they can receive on the next test to maintain at least an 80% average first thus:

First, to make it easy we can remove the percent sign. Then we multiply 80 by 6 since we're calculating for 6 tests scores. This will be:

= 80 × 6

= 480

We then add all the 5 test scores. This will be:

= 71 + 89 + 72 + 84 + 83

= 399

We then subtract the values gotten. This will be:

= 480 - 399

= 81

This means the student must get at least 81%


Related Questions

Simplify (4^3)^5
I need help, and I will give Brainliest!

Answers

Answer:

1073741824 is your answer.....

Answer:

1073741824

Step-by-step explanation:

[tex]( {4}^{3}) ^{5} \\ = {64}^{5} \\ = 1073741824[/tex]

5 7/8-(3 1/2+1 1/4 please really need it

Answers

Answer:

1 [tex]\frac{1}{8}[/tex]

Step-by-step explanation:

[tex]\frac{47}{8} - (\frac{7}{2} + \frac{5}{4} )[/tex]

[tex]\frac{47}{8} -\frac{19}{4}[/tex]

= [tex]\frac{9}{8}[/tex]

= [tex]1\frac{1}{8}[/tex]

Answer provided by Education Point

please solve this......​

Answers

please mark me as brainlest

He worked for 35 days.

[tex]200 \div 8 = 25 \\ 875 \div 25 = 35[/tex]

f(x)=-x2+8x-1 find f(3) show work

Answers

f(3)= -(3)^2+8(3)-1
=14

what is the x-intersept

Answers

Answer:

-2

Step-by-step explanation:

-2 because that is where the line intersects on the x-axis

compound inequality problem: 3x-10<4(x-2)

Answers

Answer:

x >-2

Step-by-step explanation:

3x-10<4(x-2)

3x - 10<4x-8

grouping liked terms

3x-4x<-8+10

-x<2

divide through by coefficient of x

x > -2

Given f(x) = 3x- 1 and g(x) = 2x-3, for which value of x does g(x) = f(2)?

Options:
A)x=3/2

B)x=2

C)x=5/2

D)x=4

Answers

Answer: x = 4

Step-by-step explanation: f(2) = 3(2)-1 = 5. Meaning x needs to be a value that makes g(x) = 5. You can set them up equal to each other 5 = 2x-3 and solve. You end up getting x = 4.

The square root of which of the following integers is between 7 and 8 ?

Answers

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The diameters of cherry tomatoes produced by a large farm have an approximately Normal distribution, with a mean diameter of 22 mm and a standard deviation of 2.5 mm. What proportion of such tomatoes have a diameter between 20 and 26 mm?

Answers

Answer:

0.7333

Step-by-step explanation:

2021 Math

Proportion of such tomatoes have a diameter between 20 and 26 mm is 0.7333.

What is standard deviation?

It's a way to measure how far each data point is spread from the average value.

let x represents the diameters of cherry tomatoes produced by large farm which is formally distributed with mean = 22m

and, standard deviation= 2.5 mm

Now, proportion of tomatoes have diameter between 20 and 26 mm

=P (20 < x< 26)

=P(20-22 / 2.5 < [tex]x- \mu/ \sigma[/tex] < 26- 22/2.5)

=P(-0.8 < z < 1.6)

=P(z = 1.6) - P(z=-0.8)

=0.9452 - 0.2119

==0.7333

Hence, proportion of such tomatoes have a diameter between 20 and 26 mm is 0.7333.

Learn more about standard deviation here:

https://brainly.com/question/13905583

#SPJ2

Write 28 + 24 as a product of 2 factors using the GCF and the distributive property.

Answers

Answer:

4(7 + 6)

Step-by-step explanation:

The GCF (greatest common factor) is the largest factor that both numbers share, and in this case it is 4.

28+24 as a  product of 2 factors using the GCF and the distributive property is 4(7+6)

What is Number system?

A number system is defined as a system of writing to express numbers.

We need to write  28 + 24 as a product of 2 factors using the GCF and the distributive property.

A factor is a number that divides another number, leaving no remainder

The greatest common divisor of two or more integers, which are not all zero, is the largest positive integer that divides each of the integers.

We need to find factors 28 and 24

28=1,2,4,7,14,28

24=1,2,3,4,6,8,12,24

4 is the greatest common factor.

28 + 24

Take 4 as common

4(7+6)

Hence, 28+24 as a  product of 2 factors using the GCF and the distributive property is 4(7+6)

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Someone pls help???????????????????????????????????

Answers

The answer is : 10 I hope that right:))

It cost $.50 to download an individual song in four dollars to download an album Jada has $15 to spend downloading music

Answers

Answer:

1.00

Step-by-step explanation:

If +20 represent 20m above sea level,then -20 represent?​

Answers

Answer:

-20 meters below sea level

Step-by-step explanation:

as we know 0 is the water level, and since +20 is 20m above sea level, -20 is 20 m below sea level

PLS HELP need it quick!! Determine the period of the following graph.

Answers

Period = 6pi
Good Luck and be careful from suspicious links.

2/3 plus negative 1/3

Answers

2/3 + (-1/3) = 2/3 - 1/3 = 1/3

Mike has $45.00 and he needs to split it up between 36 friends. How much will each friend get if he splits it up into equal groups?

Answers

Answer:

Each friend will get $1.25

Step-by-step explanation:

45/36 = 1.25

Answer: 1.25

Step-by-step explanation:

Just divide $45.00 and 36

Find the equation of a line perpendicular to y = 1+ 2x that passes through the
point (4, -4).

Answers

Answer: y=-0.5x-2

Step-by-step explanation:

Each of the 5 boys ate 2/3 of a pizza. What is the total amount of pizza the boys ate?
A
4 1/3 pizzas
B
4 pizzas
C
3 1/3 pizzas
D
3 pizzas

Answers

They ate 3 and 1/3 amount of pizza. So ur answer is C!!

Hope this helps have a good day

What error did Anya make? room ch:7 She set up the proportion incorrectly, the second ratio should be 2. 2 She cross-multiplied incorrectly. X She divided incorrectly. She used the wrong label; it should be inches.​

Answers

Answer:

A. She set up the proportion incorrectly, the second ratio should be 2.2.

Step-by-step explanation:

Answer:

Your answer would be A

Step-by-step explanation:

Good Luck

Here is a triangular prism.

Answers

Answer:

Volume of the prism: 120cm^3

Step-by-step explanation:

volume of a prism = area of cross-section x length

so

volume of triangular prism = 4 (h) x 6 (b) divided by 2 x 10 (length)

6 x 4 = 24

24 / 2 = 12

12 x 10 = 120

Hope this helped!

- profparis

What does x equal in 6x-2

Answers

answer: 2/6 or 1/3

explanation: make this equation equal 0. add 2 on both sides. divide by 6 on both sides.

HELP QUICK PLEASE THIS IS FOR AN ASSIGNMENT

Answers

Answer:

17

Step-by-step explanation:

i dont know how to do this i will mark brainleist if you answer!

Answers

Answer:

12a. 45+0.5x+2x+x = 150

12b. the three unknown sides are 30ft, 60ft, and 15ft.

Step-by-step explanation:

12a. the fence is 150ft. so

45+0.5x+2x+x = 150

12.b solve the equation from 12a.

45+0.5x+2x+x = 150

7x/2 = 105

7x = 210

x= 30

0.5(30) = 15ft

2(30)=30ft

x= 30ft

the three unknown sides are 30ft, 60ft, and 15ft.

Answer:

12a. 45+0.5x+2x+x = 150

12b. the three unknown sides are 30ft, 60ft, and 15ft.

Step-by-step explanation:

12a. the fence is 150ft. so

45+0.5x+2x+x = 150

12.b solve the equation from 12a.

45+0.5x+2x+x = 150

7x/2 = 105

7x = 210

x= 30

0.5(30) = 15ft

2(30)=30ft

x= 30ft

the three unknown sides are 30ft, 60ft, and 15ft.

“Identify the CORRECT formula based on the sequence” do not answer on some bs .

Answers

Answer:

see explanation

Step-by-step explanation:

there is a common ratio between consecutive terms , that is

21 ÷ 7 = 63 ÷ 21 = 3

this indicates the sequence is geometric with explicit formula

[tex]a_{n}[/tex] = a₁ [tex]r^{n-1}[/tex]

where a₁ is the first term and r the common ration

here a₁ = 7 and r = 3 , then

[tex]a_{n}[/tex] = 7 . [tex]3^{n-1}[/tex] ← explicit formula

the recursive formula allows a term to be found by multiplying the previous term by r , then

[tex]a_{n}[/tex] = 7 . [tex]a_{n-1}[/tex] ← recursive formula

Please help I suck at boxplots

Answers

Answer:

D

Step-by-step explanation:

Median: 18

Minimum: 16

Maximum: 23

First quartile: 16

Third quartile: 19.5

Interquartile Range: 3.5

Select the two values of x that are roots of this equation.

Answers

Answer:

B

C

Step-by-step explanation:

[tex]x_{1} = \frac{5 + \sqrt{5}}{2} \\x_{2} = \frac{5 - \sqrt{5}}{2}[/tex]

Let f(x)=3x^2−2x+1. What is the value of f(−4)?
−55
−49
41
57

Answers

Answer:

57

Step-by-step explanation:

[tex]f(x)=3x^2-2x+1;f(-4)[/tex]

Let [tex]x=-4[/tex]

[tex]3(-4)^2-2(-4)+1[/tex]

[tex]48-\left(-8\right)+1[/tex]

[tex]57[/tex]

~

4x+1= 2x +7
How to solve this equation?​

Answers

Answer:

3

Step-by-step explanation:

4x +1 =2x +7

4x - 2x =7 - 1

2x =6

x=6 :2

x=3

Answer:

-2x to both sides

-1 to both sides

then you get 2x=6

divide each side by 2

x=3

tep-by-step explanation:

The table shows the number of hours ladena spent sleeping each night for 12 nights. Use the table to answer exercises 1-3. 1. What is the mean of the data? Round to the nearest tenth. 2. What is the mode of the data?

Answers

Answer:

1. 7.6

2. 8

Step-by-step explanation:

for number one, add all the hours and then divide it by how many hours individually

for number two, the mode is the member which occurs the most

I hope this helps

PLEASE ANSWER!!! :/
:) PLEASE

Answers

Answer:

im pretty sure its 1440

Step-by-step explanation:

you have to do 6 x 60 for one minute, then multiply that by 4 and you get 1440.

Answer:

I think it is 1200 feet.

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