Mathematics Middle School

what is the value of 2x^2-2(x+4) when x = 5?
A.–32
B. 24
C. 32
D. 40

Answers

Answer 1

Answer:

Algebra 1 Answer Key with notes.pdf go on that and there are the anwers and the answer key :)

Step-by-step explanation:

Answer 2

Answer:

b

Step-by-step explanation:

Related Questions

Please help me I have a C in math and the marking period is over this week

Answers

Answer:

30%

Step-by-step explanation:

just do 25 x 3 and you get $75

HELPPPPPPP MEEEEEEEEEEEEEEEEEE

Answers

The ans to no 1 .is 2

and the ans to no 2. is 9

PLEASE HELP ASAP!!!! WILL GIVE BRAINLIEST

Jesse and Amir were assigned the same book to read. Jesse started reading on Saturday, and he is reading 30 pages a day. Amir didn't start until Sunday, but he is reading 35 pages a day.

How many days will it take Amir to catch up to Jesse, and how many pages will they each have read?

1. Write an equation to represent the number of pages Amir has read. Use x to represent the number of days Amir has been reading and y to represent the number of pages he has read.

2. Write an equation to represent the number of pages Jesse has read.

Using x, the number of days Amir has been reading, write an expression to represent the number of days Jesse has been reading. Remember that Jesse started reading one day before Amir. Use this expression to write an equation for the number of pages Jesse has read. Let y represent the number of pages read.

3. Write the system of equations using your answers from questions 1 and 2.

4. You will use substitution to solve this system. Which variable will you substitute for and why? Show the equation that results from the substitution.

5. Solve the system of equations. Show your work.

Answers

Answer:

6 days

210 pages

Step-by-step explanation:

As stipulated by the question, let the number of days Amir has been reading be x and the number of pages he had read to be y.

Now since he reads 35 pages per day.

The answer is 6 days.

210 Pages

STEP-BY-STEP:

Amir has been reading X and the pages is Y

Now since he reads 35 pages per day

mathematically it's: y = 35x

For Jesse, he started to read a day before:

Days he read would be x + 1.

Since he reads 30 per day the total number of pages is

30(x+1)

So it's y = 30(x+1)

Now The Work:

35x = 30(x+1)
35x = 30x + 30
35x -30x = 30
5x = 30
x = 30/5
x = 6 Days

It will take Amir 6 days to catch to Jesse

35 * 6 or 30(6+1) = 210

3 algebra questions ill give brainliest!! no random answers or ill report.

Answers

Answer:

14)$9,320.00. 15)Chen has 8 nickels, 2 dimes, and 6 quarters.     16)10%

Step-by-step explanation:

14)A = $9,320.00

I = A - P = $1,320.00

Equation:

A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal

r = R/100 = 5.5%/100 = 0.055 per year.

Solving our equation:

A = 8000(1 + (0.055 × 3)) = 9320

A = $9,320.00

The total amount accrued, principal plus interest, from simple interest on a principal of $8,000.00 at a rate of 5.5% per year for 3 years is $9,320.00.

16)R = 1011.1111%/year

Equation:

r = (1/t)(A/P - 1)

Calculation:

Solving our equation:

r = (1/1)((1250/112.5) - 1) = 10.11111111

r = 10.11111111

Converting r decimal to R a percentage

R = 10.11111111 * 100 = 1011.1111%/year

The interest rate required to get a total amount, principal plus interest, of $1,250.00 from simple interest on a principal of $112.50 over 1 years is 1011.1111% per year.

Answer:

203003 203203 x 233 x 2322

guys need help with this question NOTE: the answer is a mixed number not a whole number.

Answers

Answer:

5 2/5

Step-by-step explanation:

Find the area and perimeter of parallelogram.

Answers

Answer:

Area: 40 cm Perimeter: 30 cm

Step-by-step explanation:

When finding the area of a parallelogram, you use the inside length (in this case, 5cm) and the base (8cm). With perimeter, you use the base and the length (6cm).

8*5=40

8+8+6+6=30

I WILL GIVE 69 POINTS AND BRAINLIEST TO WHOEVER ANSWERS ALL 5 QUESTIONS

Answers

you can only see the top sentence
The first answer is c I believe

a triangle has a side length of 13 cm and 5 cm. Which could be the value of the third side. 19 cm or 13 cm?

Answers

Answer:

The value of the third slide is 12

Step-by-step explanation:

Angelica is deciding which bank would give her the best simple interest rate on a $300 deposit. One bank says she will have $320 in her account if she leaves the principal for 2 years. Is this enough information for Angelica to find the interest rate?

PLEASE HELP

Answers

Answer: No. I don't believe that is enough information.

Step-by-step explanation:

Answer: No

Step-by-step explanation:

You'll need to know what the second bank will do before deciding.

A square has a side length of . Which of the following rational numbers best describes this value?

Answers

Answer: 8.7

Step-by-step explanation:

sqare root of 75 is 8.66 so the closest is 8.7

Answer:

8.7

Step-by-step explanation:

[tex]\sqrt{75} =8.66 = 8.7[/tex]

Help me please im dying becuase of this

Answers

Answer:

C

Step-by-step explanation:

what is the solution

Answers

Answer:

1+1=a a=solution

Step-by-step explanation:

The solution is 1+1=a

Which pair of expressions are equivalent?
A
3x+2+2x and 7x

B
8(x−3) and 8x−24

C
4(x+1) and 4x+1

D
3(5x) and 8x

Answers

Awnser is A :))))))))
it should answer A






hope this helps

Jason earns $20 per game as a referee in youth soccer games. Write an expression to find how much money Jason will earn for refereeing n number of games. How much will he earn for refereeing 6 games?
plz plz i beg

Answers

The correct answer is

20n: $120

$120

The total made would be found by multiplying the amount me makes per game by the number of games he referees.

Total = 20n

To find the total for 6 games replace n with 6:

Total = 20(6)

Multiply:

Total = $120

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP :O Simple Algebra! I'll give BRAINLIST!!!!!!!! Pls look at the image below. Please do all. Tell me which is equivalent. TY. Quick pls

Answers

Answer:

Step-by-step explanation:

There is no picture. Can I have brainly still?

what is 2(x - 3) + 3y = 0 solve for y :D

Answers

Answer:

2x+3y=5

Step-by-step explanation:

Answer:

y-intercept: (0,0)

Please mark brainiest :)

Can anyone help me with this question

-5(y+10)

Answers

Answer:

-5y-50

Step-by-step explanation:

-5(y+10

-5y-50

Answer:

-50

Step-by-step explanation:

If Brenna's original interest rate was 4.575%, what is her new interest rate after the points purchase​

Answers

Answer: 7%

Step-by-step explanation:

Thats the answer

is 4/3y=x a direct variation?

is y-7x=0 a direct variation?

is y=2x+4 a direct variation?

Giving Brainliest to the first CORRECT answer. I will delete your answer if you try to just get the points!!! So, I would advise just to answer the question with smarts in reward of Brainliest! :)

Answers

Answer:

1 yes 2 no 3 no

Step-by-step explanation:

1 yes 2 no 3 no...........

$22.95 shirt, 10% markup and 6% tax

Answers

Answer:

I believe its $26.77

Step-by-step explanation:

good luck!

Determine a rational number in between -2 1/4 and -2.8 justify and graph where it would be on a number line

Answers

Answer:

Its going to be on the -5, 0 point

Step-by-step explanation:

a pair of jeans cost 35.00. the sales tax is 7%. how much is the sale tax?

Answers

Answer:

2.45

Step-by-step explanation:

$2.45

we know that because you take the 35.00, move the decimal point on 7% and times 35.00 by the .7. Making 2.45 dollars!

Hope this helps!

Sheldon harvests the strawberries and tomatoes in his garden.

He picks 125 kg less strawberries in the morning than in the afternoon. If Sheldon picks 214 kg in the morning, how many kilograms of strawberries does he pick in the afternoon? Explain your answer using words, pictures, or equations.

Answers

The answer is 336.

oooooooooooo

Use the function graphed on the coordinate plane below.

Answers

Answer:

Answer #3

Step-by-step explanation:

Also, this is Algebra 2, so it should be in the high school section.

Please answer ASAP!!! I really need this fast, ty! :)

Answers

Answer:

I got -8. Not sure if it's correct though.

Answer:

-8 I could be wrong

Step-by-step explanation:

The number of calories burned by a 90-pound cyclist is proportional to the number of hours the cyclist rides. The equation to represent this relationship is y = 225x. What is the constant of proportionality?

Answers

it should be 135





hope this helps

The constant of proportionality is 225.

Given that,

The number of calories burned by a 90-pound cyclist is proportional to the number of hours the cyclist rides. The equation to represent this relationship is y = 225x

Based on the above information, the calculation is as follows:

y = kx

So here the constant should be 225.

Learn more: brainly.com/question/17429689

Do not steal my points i will report
DONT LOOK AT THE ONE I MARKED JUST FIGURE IT OUT

Answers

1: dont be so rude we’re trying to help u 2: i think 24
lol uh its prolly 24

is 9% of 20 greater than or less than 2?

Answers

Answer:

Less

Step-by-step explanation:

10% of 20 = 2. So, 2 does not equal 9% of 20.

Answer:

less than.

Step-by-step explanation:

9% of 20 is 1.8, which is less than 2.

1. What is the simple interest on $4,500 for 2 and a half years at 4% per year?
2. On a loan of $4,500 for 2 1/2 years at 4% per year, how much do you wind up paying to pay off the loan?
3. What is the simple interest on $40,000 for 10 years at 12%?
4. For a loan of $40,000 at 12% for 10 years, how much do you wind up paying back?

Answers

Answer: 1st is 180$ sorry if I’m wrong

Step-by-step explanation:

Answer:

1. $450

2. $4950

3. $48,000

4. $88,000

Step-by-step explanation:

I took a test and got these questions correct. I hope this helps!

How can you tell whether a function is a linear function?

A. Graph it and check to see if the graph is a straight line.

B. Check to see if it fits the pattern y = a + bx.

C. Look at the slope and make sure it's always changing.

Answers

Answer:

a

Step-by-step explanation:

I'm pretty sure that's it

The correct answer is A
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