Mathematics College

Rory earned an 84% on his test. He answered 21 questions correctly. How many total questions were on the
test? Round to the nearest tenth if necessary

Rory Earned An 84% On His Test. He Answered 21 Questions Correctly. How Many Total Questions Were On

Answers

Answer 1

Answer:

25 questions,

$18.75

Step-by-step explanation:

Remember, to change percents to decimals, divide the number by 100 and remove the parentheses.

1. 84%, or 21 questions of Roy's test were correct.

Let's set the number of questions on the test as "x". We can then write this equation:

84% * x = 21

Simplify.

0.84 * x = 21

Divide both sides by 0.84

x = 25

There were 25 questions on the test.

2. Cheesecake Factory question

We need to find 15% of 125.

15% * 125 =

0.15 * 125 =

18.75

They need to leave a $18.75 tip.

I hope this helps! Feel free to ask any questions!

Related Questions

Can y’all help me on question 27?!

Answers

Answer:

B and D

Step-by-step explanation:

A would be:

57 + 2j

C would be:

13-t

The ratio of the vertical change to the horizontal change to any two points on a line is called _______ of the line

Answers

Answer:

The ratio of the vertical change to the horizontal change to any two points on a line is called ___slope___ of the line

Step-by-step explanation:

Slope will be your answer, hope this helps!

principal $2000 rate of interest 4% time 3 years

Answers

Answer:

principal =2000

rate of interest=4%

time=3 years

now,

P×T×R÷100

2000×4×3÷100

24000÷100

240....


After sales tax, a $96 watch costs
$101.28. What is the sales tax
percentage?

A:6.2%
B:5.5%
C:5.2%
D:8.5%

Answers

101.28-96 = 5.28
5.28/96 = 0.055
0.055 x 100% = 5.5%

last problem had the wrong photo so heres the right one

Answers

Answer:

J

Step-by-step explanation:

1. y = mx + c ( equation of a straight line,where "c" is the y intercept, i.e, the y co-oridnate of where it cuts the y-axis)

2. It is now clear to see that the value of "c", the y co-ordinate of the point of intercept is 3, eliminating F and G as options

3. Substitute a given point into the equation y = mx + 3 to solve for "m", the gradient. I chose (3; 1) as it is the only visible point that lies on the straight line

4. Solve for "m" algebraically and you'll find that the gradient is -2/3

5. Substitute "m" back into the equation and you'll find that your equation is y = -2/3x + 3 or J

ALTERNATIVELY:

You could just find the value of "c" as stipulated above, which would leave you with H and J as options. But since you know the coefficient of x in the equation is the gradient, you can just tell by looking at the line whether or not it will have a positive or negative gradient. The gradient is negative since the line is sloping downwards, so you're only option is J.

I just need help with this question please

Answers

Answer:

71.286

Step-by-step explanation:

60 x .09 = 65.4

65.4 x .09 = 71.286

Answer:

$71.29

Step-by-step explanation:

$60 x 1.09 = $65.40 (year one)

$65.40 x 1.09 = $71.286 (year two)

Plsssss first person to do all of them gets 40 points if you don’t do all of them i will report also if you put random stuff i will report if you do it all correct i will put brainlyist and put 5 stars and a heart

Answers

Answer:

Trapezoid: [tex]31.59cm^{2}[/tex]

Square: [tex]96.04 miles^2[/tex]

Circle: [tex]314.15926535898 miles^2[/tex]

Rectangle: [tex]44.7miles^2[/tex]

Step-by-step explanation:

I labeled one of the pictures wrong, but if you look at the numbers, you should be able to tell them apart ;)

I hope I helped, and I always appreciate brainliest!!! :)

Jonah drives his car to and from work. The total length of the trip to and from
work is 198 miles. In
August, Jonah worked 21 days.
How many miles in all did Jonah drive to and from work that month? Complete the explanation.
19.8
x21
(answer)
+(answer)
(answer Jonah drove(answer)
miles in August. (no files please, i need this due today)

Answers

514.8 your welcome

All you have to do is multiply 19.8 x 26


A water container was 1/4 full. Two litres of water was added. The container was then 1/3 full. How much did the container hold?

Answers

Answer:

Bárbara come la tercera parte de una caja de bombones. Su papá luego compra 7 bombones más y los pone en la caja. ¿Cómo se representa la cantidad de bombones que hay ahora en la caja?

Step-by-step explanation:

Bob has 4,000 grams of sand. If his brother has one kilogram more than Bob, how many kilograms of sand does Bob's brother have?

Answers

Answer:

5 kg

Step-by-step explanation:

1 kg = 1000 g

4 kg = 4000 g

? kg = 5000 g

model the unknown number problem by writing an algebraic expression. Then complete the statements
juan doubled his workout time

Answers

Is there a picture to the question

I need these 3 and I’ll give brainliest

Answers

14. k=-9 15. C makes the equation true so All real numbers. 16. There are no values of Y so the answer is “No soultion”.

I'll give points and brainalist for answer / explanation

Answers

Answer:

C

The perimeter of a square is the measure around it [ the square ]. The circumference of a circle is finding the distance/finding the measure of the distance around a circle.

Hope that helps! :)

At arman's Co. pretzels are move from ovens to packaging in a line of 25. Every fifth pretzels is tested fir weight. Every third pretzel is tested for size, how many of the 25 pretzels are not checked or tested?

Answers

Answer:

Step-by-step explanation:

5 times 25 3 times 25 add both anwsers

13 out of 25 pretzels are not checked or tested.

Let the 25 pretzels be:

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25.

Every fifth pretzels is tested for weight.

Collect all the multiples of 5 till 25.

So, pretzels that are tested for weight are: 5, 10, 15, 20, 25.

Every third pretzel is tested for size

Collect all the multiples of 3 till 25.

So, pretzels that are tested for size are: 3, 6, 9, 12, 15, 18, 21, 24.

Now, pretzels that are not checked or tested are: 1, 2, 4, 7, 8, 11, 13, 14, 16, 17, 19, 22, 23.

They are 13 in number.

13 out of 25 pretzels are not checked or tested.

Learn more about multiples here:

https://brainly.com/question/12017228?referrer=searchResults

I'm looking for the diagram related to question 5 ....pls if you can solve it correctly ,I will reward you as a brainlist ❤️​

Answers

Answer:

a. A capital letter that have corresponding angles is the letter 'E'

b. A capital letter that have alternate angles is the letter 'N'

Step-by-step explanation:

The capital letter 'F' is made two horizontal parallel lines that touch a common transversal. Therefore, in the letter F, the two horizontal parallel lines form corresponding angles with the transversal below each parallel line

Similarly, the letter Z form alternate angles below the horizontal parallel lines and the inclined diagonal

a. Another capital letter that have corresponding angles is the letter 'E'

b. Another capital letter that have alternate angles is the letter 'N'

Answer:

A

Step-by-step explanation:

the answer is a

Find the solution(s) to the system of equations below:
3x - 5y = 3 and y = 3x2 - 4x + 1

Answers

Answer:

1,0

8/15,-7/25

Step-by-step explanation:

3x - 5y = 3

5y = 3x-3

y = (3x-3)/5

y= 3x² -4x +1

or, (3x-3)/5 = 3x²-4x +1

or, 3x-3 = 15x²-20x+5

or, 15x² - 23x +8 =0

or, 15x² - (15+8)x +8 =0

or, 15x² - 15x -8x +8 = 0

or, 15x (x - 1) -8(x-1) =0

or, (x-1)(15x-8)=0

Either,

x-1=0

x = 1

when x=1,

y= 0

or,

15x-8=0

x=8/15

when x= 8/15,

y= -7/25

Which set of ordered pairs does not represent a function?
O {(3,4),(-9,5 (-3,8),(-2,8)}
O {(5,5), (5, -9),(-1,-8), (-4, – 7)}
O{(-5, -8), (0, -4),(-8,-8), (6,6)}
o{(-1,7), (1,8), (0, -3), (-4, -3)}

Answers

Answer:

B

Step-by-step explanation:

When 3 + 3x - 5 - 8x is simplified, the result is:
OOOO
-5X - 2.
-5x - 8.
- 11x - 15.
6x - 13x.

Answers

Answer:

A

Step-by-step explanation:

23=5-2/3d then what is the value of 6d?

Answers

Answer:

-162

Step-by-step explanation:

23=5-2/3d

2/3d=-18

d= -27

6d= 6* -27

6d= -162

Need help on this please

Answers

Answer:

dff

Step-by-step explanation:

saf

Can somebody pls help me on this one?

Answers

Here's link to the answer:

tinyurl.com/wpazsebu

Any hot you have an index card with a number 1 through 10 written on them find how many of the 10 possible numbers you can pick match describe event and drag and drop each of the numbers into the contact Box the order the event is most 1 likely to happen to most likely of happened 8 you will pick one card at random

Answers

there is a 10% possibility to every single number to be chosen.

If 50% of a number is 60, find 5% of that number.
i need it rn

Answers

Answer:

6

Step-by-step explanation:

if something has 60 as it's 50 percent, then 100 percent would be 120

now we have to find 5 percent of 120:

5/100 × 120= 6

Answer:

6

Step-by-step explanation:

Find the perimeter of quadrilateral ABCD. The side lengths are A (-3, 4), B (5, 4), C (5,-4), and D (-3, -4).

Answers

Answer:

32

Step-by-step explanation:

each line segment's distance is 8 (count them)

4 * 8 = 32

At an ice cream shop, a person can choose from 3 different
sizes of cones, 5 different flavors, and 5 different toppings. If
you want to buy an ice cream in a cone with a topping,
How many different options are there when you are buying
ice cream?
______ options

Answers

Answer:

13

Step-by-step explanation:

3 + 5 + 5 = 13

that is the answer




4. Patti and her friends want to see one of
two movies. One movie starts in 1 day
2 hours 20 minutes. The other movie
starts in 1 day 4 hours 10 minutes. The
later movie starts at 5:00 P.M. At what
time does the earlier movie start?

Answers

Answer:

The earlier movie starts at 1610 (4:10 PM)

Step-by-step explanation:

The later movie starts at 1700 (5:00 PM), and is in 1 day, 4 hours and 10 minutes. That means the time is __:50. Additionally, it's in 4 hours. 1700 - 400 = 1300 (1:00 PM). Now we know the time is 1350 (1:50 PM) presently.

If it's currently 1:50 PM, and the earlier movie starts 2 hours from this time tomorrow, then it begins at 1350 + 200 = 1550 (3:50PM). Take into account that there's also another 20 minutes before the movie commences, it will be 1610 (4:10 PM).

Good luck!!

There were 20 boys and 26 girls in a chess club last year. This year the number of boys increased by 30% but the number of girls decreased by 15%. Was there an increase or
decrease in overall membership?

Answers

Step-by-step explanation:

Boys

[tex]20 + (20 \div 100)30 = \\ = 20 + 0.2 \times 30 = \\ = 20 + 6 = \\26[/tex]

Girls

[tex]26 - (26 \div 100)15 = \\ = 26 - 0.26 \times 15 = \\ = 26 - 3.9 = \\ = 22[/tex]

Total last year 46

Total this year 48

Increase

Which of the following rules represents the function shown in the table?

Answers

Answer:

I do not know

Step-by-step explanation:

Jackie Chan is reviewing the total accounts receivable of his new department store in Hong Kong customers who paid with credit totaled $85,000 this month this represents 40% of our receivables do what is mr. Chan's total account receivable?

Answers

Answer:

Mr. Chan's total account receivable is of $212,500.

Step-by-step explanation:

$85,000 this month this represents 40% of our receivables

This means that 85000 is 40% = 0.4 of the receivables, which is x.

What is mr. Chan's total account receivable?

We have to find x

[tex]0.4x = 85000[/tex]

[tex]x = \frac{85000}{0.4}[/tex]

[tex]x = 212500[/tex]

Mr. Chan's total account receivable is of $212,500.

help me pls. answer correct

Answers

Answer:

1st answer is

[tex](x.y) = ( \frac{38}{5} . \frac{2}{5} ) \\ [/tex]

2nd answer is (x, y) =(36, 45)

Other Questions
How many sugar molecules are present in 300 mL of a 2.0 M solution? (The formula for sugar is C12H22O11) AND ADD STEPS PLEASE Ivy bought a new pair of basketball shoes that were on sale for 25% off. Ifthe regular price of the shoes was $75.95, what is the amount of discount? Over a long period, how might living things adapt to increased carbon dioxide levels and global warming? 3x - 12x + 8 when x = -2. If 18 g of air has 48 J of heat added to it, what will be the change temperature? (C = 0.25 J/g xC) FOR BRAINLIST which citys economy benefited the most from the discovery of oil?A.HoustonB.San AntonioC.LubbockD.El Paso Please help and tell me how u got it Help!!! State whether you agree with each of the following statements.1. A temperature of 35 degrees Fahrenheit is as cold as a temperature of-35 degrees Fahrenheit.AgreeDisagree Who was the famous inventor in new york during the 1800's? The diagram shows quadrilateral MNPQ.Quadrilateral M N P Q is shown. Sides N P and M Q are parallel. Angles P and Q are right angles. The length of M N is 10, the length of N P is 3, and the length of P Q is 6.What is the length of line segment MQ?8 units10 units11 units15 units Why is it important for nitrogen to be more abundant in our atmosphere than oxygen?A. Oxygen is only breathable if diluted with nitrogen.B. Nitrogen and oxygen combine to produce weather that is essential for life.C. Oxygen must be diluted because it is a highly combustible gas.D. Nitrogen is a heavy molecule that pulls oxygen, a light molecule, to the surface for oxygen-dependent life to use.(also report this idiot called americanlove if spot him, for the last 2 hours he has been going to almost every post just to steal points for no reason) Plsplspls help 22 points and brainly ONLY ANSWER IF YK THE ANSWER TY!! :) Sea f(x) = 5x + 3 entonces f(6) = ? Please help if not I with find you Which expression matches this algebraic expression after using Distributiveproperty a(b+cq - bd). abcq - abdab+ acq - abdab + acq -bdab + cq -bd Fred climbed to the top of a cliff 35 feet above sea level. he then dove into the ocean, traveling a total of 42 feet from the top of the cliff. What is Fred's location after the dive? Does the sentence make sense? First correct gets brainliest! Guys plz help me asap i dont get this. also DONT ANSWER FOR POINTS i will report i have lost many points pls DONT. DONT answer if you dont know. and dont give me websites, and dont answer saying that you will edit after. do as much questions as you can, but it would be very helpful if you do all. show work if you can. Which sentence describes the noise level at Lexington and concord as the British soldiers arrived on April 19,1775 A 0.22kg mousetrap car has 3.1 J of potential energy due to the spring in the mousetrap. What is the maximum speed the car will reach? Show your work and include units.