Mathematics High School

help im stupid plzzzzz

Answers

Answer 1

Answer:

the third option: x + 2(2x - 4) = 10

Step-by-step explanation:

the question tells you that y = 2x - 4.

so, instead of writing y in the equation, just replace it with 2x - 4.

x - 2y = 10

becomes

x - 2(2x-4) = 10

Related Questions

What is the value of the expression 12 x (-1.6)

Answers

Answer: -19.2

Step-by-step explanation:

Solve for x: 2 over 3 (x − 4) = 2x. (1 point)

AHHHHH I CANT GET THIS

A.) 2
B.) -2
C.) -8
D.) -4

Answers

Answer:

-2

Step-by-step explanation:

2/3 (x-4)=2x

or, 2x-8/3 =2x (multiply(x-4) by 2/3)

or, 2x-8 =3×2x

or, 2x-8 =6x

or, 2x-6x = 8

or, -4x = 8

or, x= 8/(-4)

or, x= -2

Sarah jumps rope to keep in shape. She jumps an average of 20 times in 15 seconds. Which of these describes her jumping rate?

- 60 jumps per minute
- 60 minutes per jump
- 80 jumps per minute
- 80 minutes per jump

Answers

60/15=4
4•20=80
*80 jumps per minute*

What is the slope of the line shown.

Answers

Answer:

The answer is negative one half. If I am wrong let me know because the picture is a little hard to read.

Step-by-step explanation: To find the slope, you look at the Y axis and see where the line crosses perfectly(or goes through) the Y axis first. Then, you look at the x axis and see where the line crosses perfectly on the x axis. For example, the line crosses the Y axis at negative, and the line crosses the X axis at positive 2. The vertical line is the y axis and the horizontal line is the x axis.

Admission to the fair is $8.50 and each ride costs $1.25. He has $40 to spend at the fair. write an inequality to represent the situation. Solve the inequality to determine the maximum number of rides Jaylen can enjoy.
PLSSSSS HELPPP IM TIMED AND I WILL MARK BRAINLIEST AND HELP OUT WITH UR QUESTIONS!!!

Answers

Answer:

8.50 divided by 1.25 then when u get the answer subtract 40

Answer:

Step-by-step explanation:

so instantly 40-8.50=31.5

The question is very vague because it doesn't state the number of rides he wants to go on in minimum.

if you do 1.25x25=31.25

According to that, he will leave with a change of 0.25 and obv u cannot go on half a ride...

So in about 2 mins i guess it is 25???

Add me on instagram: vnshl

Subtracting fractions with unlike denominators 9/3-6/10

Answers

Answer:

2 2/5

Step-by-step explanation:

Hello, 40 POINTS + BRAINLIEST to a answer with a long explanation. The question below is just an example, I need to know how to solve exponents.....
The prime factorization of _________ is 2 (to the fourth power) × 5.
How do you solve with the fourth power thing? I am confused....
Please help as soon as possible :)

Answers

Answer:

you times the number by itself the number of times the power is. 10 to the fourth power is 10 times 10 times 10 times 10, etc.

Step-by-step explanation:

For instance 10 to the third power is 1000 because 10 times 10 times 10=1000/

For your example the answer is 2 times 2 times 2 times 2=16. To figure out how much you times it by is if it is to the power of 4, you times it by itself 4 times, power of 5 = times it by itself 5 times, etc. Hope it helps!

Which statement about the ordered pairs (3, – 8) and (4, 4) is true for the equation
3x - = 112
O (3, – 8) is a solution to the equation but not (4, 4).
Both ordered pairs are solutions.
Neither ordered pair is a solution.
O (4, 4) is a solution to the equation but not (3, – 8).

Answers

Answer:

Niether

Step-by-step explanation:

its not a solution

Niether it’s not a solution

Water flows through a pipe at a rate of 5 quarts every 2 days. Express this rate of flow in cups per year.

Answers

The rate of flow in cups per year is 3645 cups per year.

How to determine the rate of flow in cups per year

To convert the rate of flow from quarts per day to cups per year, we first need to convert quarts to cups and days to years.

1 quart is equal to 4 cups,

So 5 quarts is equal to 5 x 4 = 20 cups.

1 year is equal to 365 days, so

2 days is equal to 2/365 = 1/182.5 years.

So the rate of flow in cups per year is 20 cups / (1/182.5 years) = 3645 cups per year.

Answers

Answer:

-2

Step-by-step explanation:

-5 - 3 -(-2) + 7 - 3

-5 - 3 + 2 + 7 - 3

-8 + 9 - 3

1 - 3

-2

Simplify an expression for the perimeter of the equilateral triangle shown below, in centimeters.
Show your work AND Label your answer!
1.75x – 2

Answers

Answer:

1.75×2-2

Step-by-step explanation:

Like drives to his grandmother’s house on Saturday. For the first three hours, he drives at a constant sped of 50 miles per hour.

Answers

Step-by-step explanation:

if you're asking for distance then,

V = s / t

50 mph = s / 3 hrs

50 mph × 3 hrs = s

150 miles = s

Find the root of 5x-20=0

Answers

Answer:

x=4

Step-by-step explanation:

5x-20=0

+20 +20

5x=20

5 5

x=4

Add 20 to both sides cancelling out the left side.

Than you divide 5 leaving the x on one side and 20 over 5 which is 4

Which of the following numbers are less than -0.625
choose all that apply
A: - 8/5
B: -5/8
C:-0.5

Answers

C is the answer to the question

Answer:

Step-by-step explanation:

C is the answer becuase it is a negative number less than -0.625

solve all 4 please.

Answers

1.) 11/2
2.) -12
3.) 308
4.) 4

A number is in expanded form: (9 x 10) + (6 x 1) + (2 x 1/100) + (3 x 1000) What is the number is standard form?

Answers

Answer:

96.023 is the answer yeah

Keiala drives 324 miles in 4 hours. How many miles does she drive each hour?

Answers

She drove an average of 81 miles per hour.

324/4 = 81

she drove 81 miles an hour.

Help!!! What is Find the product of –35 • (–1.5)???

Answers

Answer:

52.5

Step-by-step explanation:

Two negatives make a positive so the answer is 52.5

HELP! I CANT GET ANY WRONG

Answers

It is 44 or 46

Yee sorry if it wrong

It’s 44. Hope this helps

If 3a-4=26 what is the value of 2/5a?

Answers

the answer is 4 since a=10

Find f(-3) if f(x)=X+ 2x - 1

Answers

Answer:

i 100% do not know

Step-by-step explanation:

Answer: f(-3)=-10
Explanation: We are given f(x)=X+2x-1. You would replace every x variable with -3. You’re new equation would look like this: f(-3)=-3+2(-3)-1. Then solve: f(-3)=-3+2(-3)-1
f(-3)= 3-6-1
f(-3)= -10

Aiden has c pieces of candy. He gives away 72 of the pieces. Choose the expression that shows the number of pieces of candy Aiden has left.

Answers

Answer:

C= c - 72

Step-by-step explanation:I think, I have not done this a looooooong time. so I'm probably wrong.

There are 65 people in a restaurant. The restaurant has a maximum capacity of 84 people. Write an inequality that represents the number x of additional people who can enter the restaurant

Answers

Answer:

x+65≤84

Step-by-step explanation:

Inequality that represents the number 'x' of additional people who can enter the restaurant is -

x + 65 ≤ 84

What is inequality?

Inequality refers to a relationship that makes a non-equal comparison between two numbers or other mathematical expressions.

Given is a restaurant which has 65 people in it. The restaurant has a maximum capacity of 84 people.

Assume that 'x' more people can enter inside the restaurant. Then -

the inequality can be written as follows -

x + 65 ≤ 84

65 people were already inside. 'x' more people can enter it such that the total number of people inside is either less or greater than 84.

Therefore, inequality that represents the number 'x' of additional people who can enter the restaurant is -

x + 65 ≤ 84

To solve more questions on inequality, visit the link below-

https://brainly.com/question/21857626

#SPJ5

Please answer this for me

Answers

The answer is x=-5 thank me later

Use the Distance Formula to find the distance between (-1,4) and (4,1)

Answers

Answer:

[tex]\sqrt{34}[/tex] or 5.831

Step-by-step explanation:

Plug the coordinates into the formula and there's your answer.

Rebecca writes 1/5 of a page in 1/14 minute. How many pages can she write in one minute? (fraction) pages per minute.

Answers

Answer:

She can write 2 pages and 4/5 extra.

Step-by-step explanation:

What you're going to do is multiply 14 by 1/5.

14/1 x 1/5 = 14/5

14/5 = 2 4/5

What is the y-intercept of the graph shown?
A)3
B)-5/2
C)1
D)5/2

Answers

Answer:

Step-by-step explanation:

A dot has a x - intercept and a y - intercept.

When looking for a y - intercept, you look at the y line in the graph. Where does the graph cross it?

The answer (in this case) is 3, because it's right in the middle between 2 and 4

-1 x f(-8) - 4 x g(4)

Answers

Answer:

=8fx−16gx

Step-by-step explanation:

Label each scenario as proportional (P) or non-proportional (NP). If a scenario is proportional, calculate the k-value.

Response area 3 pounds of grapes cost $6.57 Response area

Response area Pizza Palace charges $8 per pizza plus a $3 delivery fee. Response area

Response area Jay has 2 pencils and buys a new one each week. Response area

Response area It takes 1.5 ounce of glue to make 12 ounces of slime.

Answers

Answer:

Proportional kvalue-2.19

Non-proportional

Non-propotional

Proportional kvalue-8

Step-by-step explanation:

4
Jenna is planning to buy a new phone. She earned $168 one week and $325 the next
week. The phone that Jenna plans to buy is $196.50 after taxes. If Jenna uses the
money she earned within those two weeks, how much would she have after
purchasing the phone?
A $296.50
B$493
C) $689.50
D) $323.50

Answers

Answer:

a. she would still have $296.50

The correct answer is A) $296.50.

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