Mathematics High School

Jerrod had scores of 75, 82, 94 and 77 on his first four history tests. What must he score on the next test to have an average of at least 85? (Note: Remember that average is found by dividing the sum of the numbers, by the number of numbers.)

Write as an inequality and show steps, please

Answers

Answer 1

Jerrod can score 97 on the next test to have an average of at least 85

What is Inequality?

a relationship between two expressions or values that are not equal to each other is called 'inequality.

Given that Jerrod had scores of 75, 82, 94 and 77 on his first four history tests.

We need to find the score on the next test to have an average of at least 85

Let x be the score of the next text.

75+82+94+77+x/5≥85

328+x/5≥85

328+x ≥ 85×5

328+x ≥425

Subtract 328 from both sides

x≥425-328

x≥97

Hence, Jerrod can score 97 on the next test to have an average of at least 85

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Related Questions

a scientist is studying wildlife. she estimates the population of bats in her state to be 270,000. she predicts the population to grow at an average annual rate of 2.9 percent

using the scientists prediction, create an equation that models the population of bats, y, after t years.

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Answer:

Step-by-step explanation:

y = 270,000 ×1.029^t

The simple interest earned for certain amount for 3 years at 5% is AED. 450. The amount invested is ________.

I need the steps also

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Answer:

AED 3000

Step-by-step explanation:

Let the invested amount is x

Interest rate is r = 5% simple = 0.05 timesTime is t = 3 yearsInterest amount I = AED. 450

Using the interest formula and solving for x:

P*r*t = Ix*0.05*3 = 4500.15x = 450x = 450/0.15x = 3000

The amount invested is AED 3000

The side lengths of a square are each 4p. By adding 3 to the length and subtracting 3 from the width, a rectangle is made. What is the area of the rectangle?

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Answer:

16p^2 - 24p - 9

Step-by-step explanation:

I literally just took the test lol

What is the product of these two binomials?
(x^2 - 5)(2x - 1)

Answers

Step-by-step explanation:

Please refer to the attachment

A certain region of America with over 500,000 households has a mean household income of $70,000 with a standard deviation of $20,000. Economists plan to take random samples of 625 households and calculate the sample mean income for each sample. Calculate the mean of the sampling distribution of x-bar.

Answers

Answer: Mean: 70,000

Standard Deviation: 500

Step-by-step explanation:

The mean is 70, 000 and standard deviation is 800.

What is Standard Deviation?

The term "standard deviation" (or " σ ") refers to a measurement of the data's dispersion from the mean. A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed.

Given:

A certain region of America with over 500,000 households.

Mean, [tex]\mu[/tex] = 70,000

and, Standard Deviation, [tex]\sigma[/tex] = 20,000

n = 625

So, the new mean = old mean

= 70, 000

and, the standard deviation = [tex]\sigma /[/tex]√n

= 20,000 / √625

= 20,000 / 25

= 800.

Hence, the mean is 70, 000 and standard deviation is 800.

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Graphf (x) = 3x + 4 and a h(x) = -f(x).

Answers

Answer:

I think the answer is 56 .

please please answer will give brainliest

Answers

Answer:

Step-by-step explanation:

.5xBxH=.5x16x5=8x5=40

Answer:

Step-by-step explanation:

sources: dude trust me

i really need help ASAP, its due on midnight

Answers

Answer:

a. s=94 b. s=8w+54 c. w=14

Step-by-step explanation:

I posted a picture how I got this answer

Hope this helped

Taylor and Katy repeatedly toss a fair coin. Katy wins if heads are thrown, Taylor wins if tails are thrown, and the game ends when someone has won three times. Katy is currently behind 1 to 2. The chance Katy wins is:

Answers

Answer:

25%

Step-by-step explanation:

In order to find the chance/probability that Katy wins we need to first find the probability of her winning a single coin toss and then multiply it twice. This is because Katy has 1 win already and needs two more win the entire game. Since a coin toss only has 2 options and only 1 of those outcomes will cause Katy to win, then this means that the probability of Katy winning is 1/2 or 50%. Now we can multiply this probability twice to get the probability of Katy winning the entire game

1/2 * 1/2 = 1/4 or 25%

20 pts help...................

Answers

Answer:

[tex]3 \frac{3}{4}[/tex]

Step-by-step explanation:

We have a right rectangular prism and the question is asking for the volume.

Look for the formula of volume :

V = LWH

L being length

W being width

H being height

The formula is basically saying to multiply all sides together, so let's do as so.

[tex]2*1\frac{1}{4} * 1\frac{1}{2}[/tex]

= [tex]3 \frac{3}{4}[/tex]

Answer:

Step-by-step explanation:

What is the sum of the rational expressions below? 2x + 7 / x + 5 + x - 3 / x + 5

Answers

Answer:

[tex]\frac{3x+4}{x+5}[/tex]

Step-by-step explanation:

Given

[tex]\frac{2x+7}{x+5}[/tex] + [tex]\frac{x-3}{x+5}[/tex]

Since both fractions have a common denominator then add the numerators, placed over the common denominator.

= [tex]\frac{2x+7+x-3}{x+5}[/tex]

= [tex]\frac{3x+4}{x+5}[/tex]

Answer:

The answer is

[tex] \frac{3x + 4}{x + 5} [/tex]

Step-by-step explanation:

We can do this by using the denominators.

[tex]then \\ \frac{2x + 7}{x + 5} + \frac{x - 3}{x + 5} \\ = \frac{2x + 7 + x - 3}{x + 5} \\ = \frac{3x + 4}{x + 5} [/tex]

find the length and the breadth of a rectangular plot whose area is 660 sq.m and its perimeter is 104

Answers

Answer:

find the mean median mean devialion

What is the justification for step 2? 4(x-5)= -12 Justification Step 1: 4x-20=-12 Distributive Property Step 2 4x= 8 ? Step 3 x=2 Division Property of Equality

Answers

Answer:

addition property of equality

Step-by-step explanation:

Given the equation 4(x-5) = -12

Expand

4x - 20 = -12

Add 20 to both sides (addition property of equality)

4x-20+20 = -12+20

4x = 8

x = 8/4

x = 2

Hence the value of x is 2

The justification for step 2 is addition property of equality

Help plssssssssssssss?

Answers

Answer:

Step-by-step explanation:

because when x, the input, is -3, the y, the output, is 3

16. Solve the system of equations by graphing.
y = x + 8
y = - x- 6

Answers

Answer:

Step-by-step explanation:

x + 8 = -x - 6

2x + 8 = -6

2x = -14

x = -7

y = -7 + 8

y = 1

(-7, 1)

The school production of 'Our Town' was a big success. For opening night, 391 tickets were sold. Students paid $4.00 each, while non-students paid $6.00 each. If a total of $1786 was collected, how many students and how many non-students attended?

Answers

Answer:

280 students

111 non students

Step-by-step explanation:

number of students (S)

number of non students (N)

S+N=391 S=391-N

4S+6N=1786

substitute S

4(391-N)+6N=1786

1564-4N+6N=1786

subtract 1564 from each side

2N=222

N=111

S=391-111=280

que son monomios? y 4 ejemplos

Answers

una expression algebraic

5x9

xy²

8x6y

find the value of z

Answers

Answer:

[tex] z = 12 \sqrt{5} [/tex]

Step-by-step explanation:

By geometric mean property:

[tex]y = \sqrt{24 \times 6} \\ \\ y = \sqrt{144} \\ \\ y = 12 [/tex]

By Pythagoras Theorem:

[tex] z = \sqrt{ {12}^{2} + {24}^{2} } \\ \\ z = \sqrt{144 + 576} \\ \\ z = \sqrt{720} \\ \\ z = 12 \sqrt{5} [/tex]

If 2 feet is equal to 60.96 centimeters how many centimeters are in 12 feet PLEASE HELP

Answers

Answer:

365.76

Step-by-step explanation:

If 2 feet is 60.96, then 1 foot is 30.48.

30.48 times 12 = 365.76

365.76 centimeters is the answer.

Hope this helps!

Plz, mark brainliest!

Answer:

365.76 cm in 12 feet

Step-by-step explanation:

Start by setting up two fractions which are equal to one another. We will use x as the unknown amount, which is the number of centimeters in 12 feet here.(see attached picture for a visual)

Now we can cross multiply, which gives us 12*60.96=2*x

Now, solving for x we divide 12*60.96=731.52 by 2, which gives us x=365.76 centimeters in 12 feet.

John has $80. Every week, he spends $7.
Create an equation that represents how much money, m, he has after t weeks.
How much money, in dollars, will he have after the fourth week?
Enter the equation and the answer on separate lines.

Answers

John would have 52 dollars left by the fourth week.
7(dollars spent each week) x 4 ( number of weeks)=28 (spent in 4 weeks)

80 - 28 =52

what this answer
954328- 864597

Answers

Answer:

Answer is 89,731

Step-by-step explanation:

I hope it's helpful!

Answer:

89731

Step-by-step explanation:

954328 - 864597

= 89731

Hope this helps :)

Let me know if there is any mistake!!

A tree casts a shadow that is 9 feet long. The distance from the top of the tree to the end of the shadow is 15 feet. What is the height of the tree?

Answers

Answer:

15 feet tall hi hi hi hi hi hi

Answer:

Step-by-step explanation:

Graph the following features:
• Slope = 2
Y-intercept = -5

Answers

y = mx + b

y = 2x - 5

you can go to desmos calculator online and simply put in the equation. but what you're going to do is find -5 on the y axis. then you will go up 2 and then 1 to the right.

it should look like this:

hope this helps !!

The equation is y=2x-5

yoo hii, could yall please help me!!

Answers

1. 9x-10 (I think)
2. B. x=6

12x - 6 - 3x + 4
Rewrite, if it helps, grouping like terms
12x - 3x -6 + 4
9x -2

For the second problem, the answer is B

-2x + 15 + 7x = 45
5x = 30
x = 6

120 pounds decreased by 5%

Answers

Answer:

114 pounds

Step-by-step explanation:

114 should be the answer

Clasificación de los ángulos de acuerdo a sus aberturas

Answers

Answer:

recto, agudo, obtuso, liano, completo, convexo, cóncavo

Step-by-step explanation:

PLEASE HELP ASAP!!!
(Question in picture! Please include steps :))

Answers

Answer:

90 degree - 60 degree = 30 degree always remember yn will be 90 degree

Answer:

MN = π

Step-by-step explanation:

The arc MN is calculated as

MN = circumference of circle × fraction of circle

= 2πr × [tex]\frac{60}{360}[/tex] ( r is the radius )

= 2π × 3 × [tex]\frac{1}{6}[/tex]

= 6π × [tex]\frac{1}{6}[/tex]

= π

Please help me on this I need help and nobody is really helping

Answers

I believe the answer is (0,0)

Answer:

(0,0)

Step-by-step explanation:

That is the middle.

Stu is buying a &35 tool. The store reduces the price by 5%. How much will Stu pay for the tool?

Answers

Correct question is:

stu is buying a $35 tool. The store reduces the price by 5% and then applies an $8 off coupon. How much will Stu pay for the tool

Answer:

$25.25

Step-by-step explanation:

The cost of the tool has been given as $35.

The price of this tool is then reduced by 5%.

When we apply this reduction to initial price

= 35 * 5%

= 35x0.05

= $33.25

If a coupon of 8 dollars is applied

The price to be paid for the tool will be

$33.25 - $8.00

= $25.25

Stu is going to pay $25.25 for the tool

which sentence demonstrates the multiplicative identity?

1. 1/2•1=1/2
2. 1/2•2=1
3. 1/2+0=1/2•

Answers

It’s 1/2•2 equals 1 because it showed correctly in the calculator. 0.5x2=1

Answer:

It’s 1/2•2 equals 1 because it showed correctly in the calculator. 0.5x2=1

Step-by-step explanation:

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Jerrod had scores of 75, 82, 94 and 77 on his first four history tests. What must he score on the next test to have an average of at least 85? (Note: Remember that average is found by dividing the sum of the numbers, by the number of numbers.)Write as an inequality and show steps, please

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Jerrod had scores of 75, 82, 94 and 77 on his first four history tests. What must he score on the next test to have an average of at least 85? (Note: Remember that average is found by dividing the sum of the numbers, by the number of numbers.)

Write as an inequality and show steps, please