Mathematics High School

does anyone know how to do this percentage I need help I don't understand how to

Answers

Answer 1

Answer: 21

Step-by-step explanation:

Answer 2

Answer:

21$

Step-by-step explanation:

30 divided by 10 = 3 (10%)

3 x 3 = 9 (30%)

Related Questions

simplify,[-5]+[5] please give me explanation

Answers

Answer:

your answer should be 0

Step-by-step explanation:

-5 + 5 = =

Find the missing values in the ratio table.

Answers

Answer:

ok i cant tell if the dot is a decimal or a spot, im thinking its just a spot

so the answer would be 8:2 4:1 2:0.5

Step-by-step explanation:

if it is a decimal

the first box would be 8:0.2

Someone please help me on this I'm unsure if my answer is correct

Answers

Answer:

its correct

Step-by-step explanation:

i just did that one lol

please help I'm so confused pls look at picture

Answers

Answer:

The estimated solution is N = 12.

Step-by-step explanation:

1) Round the equation to [tex]N - 6 = 6[/tex].

2) Get the N on one side, and the values on the other side. To do this, add 6 to both sides. You end up with [tex]N = 12[/tex].

3) N = 12 is therefore the answer.

Hope this helps! Feel free to give me Brainliest if you feel this helped. If you need any more clarification just comment below. Have a good day. :)

lol bro somebody help

Answers

Answer:

168 miles

Step-by-step explanation:

168
Miles because if you use pemdas and add the two you get 168

How do i total this please help
8.3m
5.2m
4.36m
42.1m
86.1m

Answers

Add them all up so it would equal 146.06

Which graph best represents a function with range -4 ≤ y ≤ 3?

Answers

Answer:

3rd one

Step-by-step explanation:

The range of a function is the set of output values the function can take

The graph that represents the range [tex]-4 \le y \le 3[/tex] is graph (b)

The range of the function is given as:

[tex]-4 \le y \le 3[/tex]

The above inequality can be rewritten as:

[tex][-4,3][/tex]

This means that,

The output values start from -4 and ends at 3 (inclusive).The endpoints are closed values at -4 and 3

The graph that represents this range is graph (b)

Answers

3 3/4 = 15/4

We have to deal with each rod since they are not combined.

24/(15/4) = 24(4/15) = 32/5 = 6 2/5

The 2/5 is waste.

6(32) = 192 pieces

need help in math plz

Answers

Answer:

Reflection

Step-by-step explanation:

Reflecting it across the origin will give you the other one.

40.8-10 to the power of 2

Answers

Answer:

-4

Step-by-step explanation:

8-10 = -2

-2^2 = -4

948.64

Subtract then multiply by itself

No offense but can't you use a calculator?

How do I combine like terms
14(x - 2)

Answers

Answer:

14x - 28

Step-by-step explanation:

Hey there!

14(x – 2)

14(x) + 14(–2)

14x – 28

Answer: 14x – 28 ☑️

You DON’T have ANY LIKE TERMS, so there’s NO NEED to combining the numbers /figures

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

Identify the quadratic function that contains the points (-1,-4), (0,0) and (2,-10).

f(x) = 3x^2 - x

f(x) = 3x^2+x

f(x) = - 3x^2+x

f(x) =-3x^2-x

Answers

9514 1404 393

Answer:

Step-by-step explanation:

Points either side of (0, 0) have lower y-values, so you know the parabola opens downward. This eliminates the first two choices.

Trying one of the other points in the one of the remaining equations tells you which equation works.

For example, usint (-1, -4) in the third choice, we get ...

f(-1) = -3(-1)^2 +(-1) = -3 -1 = -4 . . . . . matches point (-1, -4)

The correct function is the third choice:

f(x) = -3x^2 +x

How to solve this question I am stuck
please help

Answers

Answer:

x=3

Step-by-step explanation:

WY is an angle bisector, which makes both sides equivalent (it’s an isosceles triangle)

Which of the following expressions could be used to represent "the difference between -12 and 10"?

Answers

Answer:

-2

Step-by-step explanation:

I took the test :)

Answer:

-12-10

Step-by-step explanation:

difference means subtraction so it is saying subtract -12 and 10

7. If f(x) = 3x + 5, find f(2). *

Answers

Answer:

f(2)=3×2+5

=11

Step-by-step explanation:

plz make me brainliest

Answer:

fx2=1

Step-by-step explanation:

i hope this helps if not im sorry i tried

what is the perimeter of the warehouse?

Answers

Answer:

(100)

Step-by-step explanation:

Hope I helped

A ship leaves port at 1 pm traveling north at the speed of 30 miles/hour. At 3 pm, the ship adjusts its course on a bearing of N 20º E. How far is the ship from the port at 4pm?

Answers

It was not until the end of the day I will be able to get the most out of the way ↕️ the first place in the first half of the season ⛄ and a few others are doing it is not the only one who has a lot of very high quality of care and treatment for me and the second is a very nice, but it does was the only thing I do you know that you can get the best out there that can be used for the first time in a long time, but I think it is a very nice and the other hand, the more I think about it, I was able to get the most out of your way to a new study by its is the only one who has a very nice to be able to get the most from a variety of different types of people and a few others.

Select the real-world problem that could be solved using a proportion.

Answers

the answer is D

300/6 = x/10

once solved, it will be proportional

ratio of width to length is 2:3 if the length 18 meters what is the width

Answers

Answer:

Step-by-step explanation: 18/3=6 6(2)= 12

Mark often buys lunch at the deli next to his work. Lunch at the deli costs $7.50. Mark sets aside $150 for lunches at the deli at the beginning of the month. Which equation describes how much money, y, Mark has after eating lunch at the deli x times during the month?

Answers

Answer:

y = 150 - 7.50x

Step-by-step explanation:

Given that:

Cost per lunch = 7.50

Amoint budgeted for lunch = $150

The equation which models the amount of money, y Mark has after eating x times at the Deli

Amount left = Amount budgeted for lunch - (cost per lunch * number of lunch eaten)

y = $150 - ($7.50 * x)

y = 150 - 7.50x

Mai bought gas for her car.

Gas cost $2.95 per gallon
Mai bought 8.2 gallons
What was the total cost for Mai's gas?

Express the answer as dollars.cents.

Only 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, . , -, and / are allowed in your answer.
Answers that are mixed numbers must be entered as an improper fraction or decimal.

Answers

fjfuvtjfihhhcjgchgifygcifuvggg IG fi

PLZ HELP ASAP ASAP HELP

Answers

Answer:

Sue

Step-by-step explanation:

Ron: 48/3

Joe: 45/5

Sue: 34/2

Ron: 16 per hour

Joe: 9 per hour

Sue: 17 per hour

please help
what is 55/5*9

Answers

Answer:

Step-by-step explanation:

55/5 is 11

11*9

is 99

Answer:

Step-by-step explanation:

bidmas is used here

55/5=11

11*9=99

why this worked. Think about what we did, play around with some numbers, try to visualize it.

******HINT: If you have anything you can use to SHOW why it worked, try that. I recommend M&M's or a candy that has color. I suggest showing your number, and whats done to it in one color... 10 and what happens to that in another.*******

Think of a number 1-10
Double it
Add 10 to that number
Divide it by 2
Subtract your original number

Your answer is 5

Answers

Answer:

10 divided by 2 equals 5 and your original number added then subtracted would be 0, so 0 + 5 equals 5

Step-by-step explanation:

I have two question I NEEDS HELP
1# Jason is participating in a walkathon. He writes the equation m = 2d + 50 to represent the amount of money he collects from each sponsor for walking d kilometers. What number represents the rate of change?
2# Cierra is keeping track of the amount of money in her lunch account each week. She writes the equation A = -6w + 40. What number represents the rate of change?

Answers

Answer:

The rate of change is the slope

In this case

m=2d+50 is a slope intercept equation.

where m is where the y would be

the 2 which is originally where the slope or (m) would be

the d for the (x)

and 50 for the y intercpet or (b)

#1=2

The expalantion is the same but different numbers, when asked for the rate of change look at the slope or the number next to the variable. Also put it in y=mx+b form to make sure the number is correct.

#2= -6

f(3) = 3x² +b For the function, f, defined above, f(4) = 49. What is the value of b?

Answers

Answer: 5.4~

Step-by-step explanation:

For the problem F(3) = 3x^2 +b, you have to first figure out what F(3) is and in this case it is 49, so now you have part of the question solved. Then you start working on the other side of the equation 3x^2 +b = 49, we don't know what x is so lets figure it out, by that you need to do 3x^2, the equals 9. So, so far we have the equation 49 = 9x +b. Now we need to get rid of the x on the 9, having a variable is considered multiplying so you need to divide 9 by 9, but remember what you do to one side you have to do to the other, so now you have to divide 49 by 9 and you get 5.444444444. Now the equation is b=5.4~ meaning that b is around 5.4, I hope this helps.

Jill is cooking bread. The recipe calls for 4 1/2 cups of flour. She has already put in 4 3/10 cups. How many more cups does she need to put in?

Answers

Answer:

im not sure but i think she should not put more because she already put more than it said

Answer: 2/10 more cups

Step-by-step explanation:

The nth term of a sequence is 2n2 − 1 The nth term of a different sequence is 40 − n2 Show that there is only one number that is in both of these sequences.

Answers

Answer:

Step-by-step explanation:

nth term of a sequence = 2n² - 1

Therefore, terms of the sequence will be,

1, 7, 17, 31, 49, ........... n terms

nth term of a different sequence = 40 - n²

Therefore, terms of the sequence will be,

39, 36, 31, 24, 15, 4, -9, -24 .......... n terms

Since, there is no negative number in the first sequence,

Therefore, out of 6 positive terms of second sequence only one number (31) is common in both the sequences.

Tristan and Evan are employees for a company. Tristan is making a salary of $49,000. Evan is earning a salary that is 29% lower than the salary of Tristan. What salary is Evan earning?

Answers

tristan = $49,000
evan=$34790
you can do this two ways:

Find what is 29% of 49,000:
29/100 x 49,000 = 14,210
Then, minus it from 49,000:
49,000-14,210=34790
Evan earns $34790

The second way to do this is by using a multiplier:

First, minus 29 from 100:
100-29=71
Then, convert it to a multiplier by dividing by 100:
71/100=.71
.71 is now your multiplier, multiply this with 49,000:
49,000x.71=34790

You get the same answer as the first method

please help me :( A standard six-sided die is rolled. What is the probability that it is not a 4?

Answers

Answer:

The answer is 5/6, or .833, 3 repeated.

Step-by-step explanation:

The 4 is only one side of the die, or 1/6 if the surface of the die. So the other part that is left is the other 5/6 of the surface.

Answer:

5/6

Step-by-step explanation:

6 faces on a dice

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