Mathematics High School

Keegan and Annie are working on an experiment in the science lab. Their mixture contains ingredients that weigh 5.22 grams, 5.7 grams, and 7.43 grams. Keegan calculates the combined weight to be 18.35 grams; Annie calculates it to be 13.22 grams.
Who is correct, and why?

Keegan And Annie Are Working On An Experiment In The Science Lab. Their Mixture Contains Ingredients

Answers

Answer 1

Answer:

C

Step-by-step explanation:

Related Questions

will x + 1/2 = x - 1/2 be always true or never true?

Answers

True 1/2 would be the same either way
if it’s between always or never i’m pretty sure it’s never true

HEYYYYY PLEASE HELP thank you: )

Answers

Answer:

the first one

when adding a negative number its basically subtracting

Answer:

Top left :D

Step-by-step explanation:

a keyboard that costs 475 is on sale for 175. How much money will you save buying it on sale?

Answers

Answer:

$300

Step-by-step explanation:

First, you subtract 475 and 175.

Which equals 300. That means that you saved $300.

Answer:$300

Step-by-step explanation:

475 (base price) - 175 (sale price)

=300 (saved price)

Help what is the range

Answers

c- 37 because it is adding 2 more to what it added everytime so it would be 26+11

WHICH ONE IS IT IM BEGING U GUYS PLZ HELP AND DONT IGNORE ME

Answers

Answer:

1.4x10^9

Step-by-step explanation:

1400000000

Can someone help me?

Answers

Answer: x = 34°

Step-by-step explanation:

180°-92°-54° = 34°

Answer: 34°
Explanation:
92+64+x=180
156+x=180
-156 -156
X=34




on a number spinner of 9 what is the probability of spinning a number greater than 5

Answers

4/9 hope this helps!

What is the value of t in the equation 2t-8+4t-13=27

Answers

Answer:

t=8

Step-by-step explanation:

If the class started at 11:30 A.M. and ended at 12:25 P.M., how long did the class last?

Answers

Answer:

55 minutes

Step-by-step explanation:

3. If Jeff is walking 2 miles per hour (mph), how far can he travel in 1 hour?
A. 2 miles
B. 3 miles
C. 4 miles
D. 5 miles

Answers

Jeff can travel 2 miles in one hour

A plane flew at a constant speed between Denver and Chicago. It took the plane 1.5 hours to fly 915 miles. How far does the plan fly in 1 hour?

Answers

Answer:

610

Step-by-step explanation:

multiply 915 x 2/3 because 1 is 2/3 of 1.5 and you get 610

Find the coordinates of point b on ac such that the ratio of AB to BC is 5:1

Answers

Step-by-step explanation:

To find coordinates, we need the equation of the line segment with restrictions. I think you meant to say “line segment” as lines go infinitely in 2 directions and could not be broken up into ratios. Let’s say your segment is 24 feet long. You could then label AB as 5x and BC as x since that is a ratio of 5:1 …………We’d then have an equation

5x + x = 24 … or 6x = 24…..or x = 4 which would make AB = 20 and BC = 4…but this would not give us coordinates of points.

Select all that apply.

Which of the following ratios are equivalent?

3 to 4

6/7

15/20

3/4
​

Answers

Answer:15/20 3/4

Step-by-step explanation:

Because 3 times 5 =15 and 4 times 5= 20 so that will be 15/20

Then if you multiply 3 and 4 by 1 it will give you 3/4

Answer:

15/20 3/4

Step-by-step explanation:

helppppppppppppppppppppppppppppppppppppppppppppppppppppp

Answers

I think it’s 10ft^3

Which represents the domain of the following relation? {(-6, 5), (-4, 3), (-1, 0), (4, 3)}

a) 5,3,0,3
b) -6,4,1,-4
c) 6,4,1,4
d) -6,-4,-1,4

Answers

Domain are the x values
It would be d) -6, -4, -1, 4

help me look at the picture​

Answers

Answer:

1. 3,485mm = 0.003485km

2. 94.22L = 9422cL

3. .003cm = 0.03mm

Plzzzzz help me!!! I am supposed to find the measure for the angle!

Answers

Answer:

the angle of this is 80 all havevtobdo is add all the sides of the angle

Demetrius received his phone bill in the mail. The bill was for $99.00 and the sales tax was 4.5%. He ended up paying $94.54 for his bill.

True
or
False

Answers

Answer:

false

Step-by-step explanation:

i think the answer is false srry if i am wrong

A skier is trying to decide whether or not to buy a season ski pass. A daily pass costs $78. A season ski pass costs $350. The skier would have to rent skies with either pass for $25 per day. How many days would the skier have to go skiing in order to make the season pass less expensive than the daily pass?

Answers

Answer:

4 days

Step-by-step explanation:

to find this our you must add 78 and 25 before doing anything as they are both part of the daily pass rates

78 + 25 = 103

now you must divide 350 by 103

350/103 = 3.39805825

because you want to find when the season pass is less expensive than the daily pass you must round up

4 is your answer

5+7n>-37 and n +8 <4
Solve each compound iniquity and graph its solution.

Answers

Answer:

-6 < n < -4

Step-by-step explanation:

Solving the inequality 5 + 7n > -37  :

5 + 7n > -37

⇔ 7n > -37 - 5

⇔ 7n > -42

⇔ n > -42/7

⇔ n > -6

Solving the inequality n + 8 < 4 :

n + 8 < 4

⇔ n < 4 - 8

⇔ n < -4

Then , the solution to the compound inequality

5 + 7n > -37 and n + 8 < 4 is :

All real numbers n ,where -6 < n < -4

The solution in interval notation (-6 , -4)

You are measuring temperature using a thermometer that gives degrees in Fahrenheit. You want to know what the temperature is in degrees Celsius. This formula converts temperatures from degrees Celsius to degrees Fahrenheit: F = 9/5C + 32. Rewrite this formula to convert Fahrenheit to Celsius. In your answer, use fractions instead of decimal numbers.

Answers

Answer:

F = 9/5C + 32

Step-by-step explanation:

F = 9/5C + 32

Since F means Fahrenheit and C means Celsius

Therefore the answer is already written

Answer: F = 9/5C + 32

Answer: C = 5/9 ( F - 32 )

Step-by-step explanation:

i dont know to do the 5 over 9 on the computer but thats the answer

Edmentum Answer

WILL GIVE BRAINLIEST TO CORRECT ANSWER

Answers

Answer: 80

Step-by-step explanation:

Multiple 8 x 10

The price of a pair of headphones is $49.99 before tax. Ron bought the headphones for a 50% discount. He then paid sales tax of 8% on the discounted price.

Part A: How much did Ron pay in sales tax? Show all work and steps in your solution.
Part B: What is the total amount that Ron paid for the headphones? Show all work and steps in your solution.

Answers

Answer:

1. Ron paid 4 dollars on sales tax and 2. The total Ron paid was 28.99

Step-by-step explanation:

Answer:

Answer to Part A: To solve this we must first find out how much of a discount is there. First we must divide 49.99 by 2 which equals about 24.99. After that we minis the discount with the original price, which equals 25.00. Then we divide 25.00 by 8 which equals 3.12. So then the sales tax must be 3.12 dollars.

Answer to Part B- First do all the math from Part A, then just add 3.12 to the price of 25.00. Which equals 28.12 so the answer must be 28.12 Dollars.

Step-by-step explanation:

Answer to Part A: To solve this we must first find out how much of a discount is there. First we must divide 49.99 by 2 which equals about 24.99. After that we minis the discount with the original price, which equals 25.00. Then we divide 25.00 by 8 which equals 3.12. So then the sales tax must be 3.12 dollars.

Answer to Part B- First do all the math from Part A, then just add 3.12 to the price of 25.00. Which equals 28.12 so the answer must be 28.12 Dollars.

Casey traveled 4 3/5 miles. She then stopped for a break. After her break, she traveled another 1/2 mile and stopped to eat a snack. Then, Casey went an additional 1/4 mile. How many miles did Casey travel altogether

Answers

Answer:

5.4miles

Step-by-step explanation:

Step one:

given

Casey traveled 4 3/5 miles

She traveled another 1/2 mile

Then,  an additional 1/4 mile

Required:

the total distance travelled

Step two;

the total distance is the summation of the individual distances covered

=4 3/5  + 1/2 + 1/4

= 23/5+1/2+1/4

lcm = 20

92+11+6/20

=109/20

=5.4miles

SOMEONE PLEASE HELP THIS IS TIMED IM NOT SURE WHAT TO DO!!!

Tony and Mia want to go to the Gwinnett Carnival for their first date. Each ride cost $5 and tickets cost $10 per person. They have $80 total to spend on tickets and rides.

Part A: Write an equation that models this situation.

Part B: Tony believes he and Mia can go on 12 rides each. Do you agree or disagree?

Part C: If Mia contributes an additional $20 to the total amount of money they could spend, how many more additional rides can Tony and Mia go on?

Answers

Answer:

80 total to spent evrytin is 20 percent

Step-by-step explanation:

Put the following equation of a line into slope-intercept form, simplifying all
fractions.
9x – 6y = -42

Answers

Answer:

slope-intercept form is y=mx + b where m is the slope and b is the y-intercept (i.e. when x=0, what is y?)

Step-by-step explanation:

Answer:

y= 3/2x + 7

Step-by-step explanation:

solve using elimination....
8x - 3y = -6
-8x + 7y = -18
( ___ , ___ )

Answers

Answer:

x= -3

y= -6

Step-by-step explanation:

8x - 3y= -6 .........equation 1

-8y + 7y= -18..........equation 2

Using elumination method

Multiply equation 1 by -8 and multiply equation 2 by 8

-64x + 24y = 48

-

64x + 56y =-144

-32y = 192

y = 192/-32

y= -6

Substitute -6 for y in equation 1

8x - 3(-6) = -6

8x + 18= -6

8x= -6 -18

8x=-24

x= -24/8

x= -3

Hence x = -3 and y = -6

Solve for the missing variable

3.5x=14

Answers

divide each term by 3.5 to get x=4.

Kyle had $450 in his bank account on Monday. On Tuesday he wrote five checks for $24.50 each. On Wednesday he made three deposits of $45 each. How much money was in his account after the checks and deposits cleared?
pls help

Answers

Answer: $462.5

Step-by-step explanation:

1.) You are going to multiply 24.50 and 5

(24.50×5= 122.5)

2.) Then subtract your answer with the money that's in the account:

(450-122.5= 327.5)

3.) Now he added money to his account so you add but first you figure out the amount

(45×3= 135)

Now you can add the amount to the remaining balance

(327.5+135= 462.5)

please help due today!!!!!

Answers

i think it would be 2. because if you do 2 plus 1 plus 2 plus 1 plus 2 it makes 8. and the other side equals eight because if you count all the ones together you get eight and they would be equal so your answer is 2!! please give me brainliest!!

The answer will be 2.

If you add 2+2+2 it will equal 6 + the 2 on the scale will be 8 that makes it equal to the other scale

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