Brenda took a math quiz last week. She got 21 problems correct and 4 problems incorrect. What percentage did Brenda get correct?

Answers

Answer 1

Answer:

84%

Step-by-step explanation:

Add the total number of questions (21+4 = 25)

divide 25 by 21

25/21 = 0.84

Multiply 0.84 by 100 to change it to a fraction

0.84*100 = 84%

Answer 2

The percentage that Brenda got correct was 84 percent


Related Questions

3) Champs sold twice as many footballs as basketballs and 5 more soccer
balls than basketballs. If they sold a total of 65 balls, how many of each
kind of ball did they sell?

Answers

Answer:

12, 15

Stepby-step explanation:

A rectangle is drawn so that the width is 2 feet shorter than the length. The area of the rectangle is 63 square feet. Find the length of the rectangle

Answers

Answer:

9

Step-by-step explanation:

is this a supplementary angle or a complementary angle or neither?? number 1

Answers

Answer:

its neither

Step-by-step explanation:

supplementary means the angles would equal 180° and complementary means the Angel's would equal 90°

in this case the angles equal to neither.

Answer:

1.neither

as there sum =56+142=198°

3.supplementary

sum =57+123=180°

3.
B
ge
18cm
A
60°
20cm
с
Calculate the size of angle ABC.

Answers

Answer:

Step-by-step explanation:

Tina paid $6.60 for some $0.15 stamps and some $0.20 stamps. She bought 37 stamps in all. How many of each kind did she buy?
PLS HELP

Answers

Answer:

1 set of A= $0.15

1 set of B= $0.20

Total Stamps bought = 37

Total purchase = 37

Let X= Set A of $0.15 each

Y= Set B of $0.20 each

x+y = 37----------X=37-Y

0.15X + 0.20Y = 6.60

0.15(37-Y) + 0.20Y = 6.60

5.55- 0.15Y + 0.20Y =6.60

0.05 Y = 6.60-5. 55

Y=1.05/ 0.05= 21

X= 37-21= 16

A line passes through (0, -1.8) and has a slope of -3. Write an equation of the line.​

Answers

Answer:

y=-3x-1.8

Step-by-step explanation:

y-y1=m(x-x1)

y-(-1.8)=-3(x-0)

y+1.8=-3(x)

y+1.8=-3x

y=-3x-1.8

Using the equation y=kx what would be the proportionate equation if she worked 25 hours and made 150.00

Answers

Answer:

y = 6x

Step-by-step explanation:

Equation representing the relation between duration of work and earning is,

y = kx

Here, y = earnings

x = Working hours

k = Proportionality constant

By substituting the values in the given equation,

x = 25 hours

y = $150

150 = k(25)

k = 6

Therefore, equation modeling the situation will be,

y = 6x

This equation can be used to find p, the number of dollars Della earned after selling her handmade doll clothes at a craft fair. p = 210 − (20 × 4) What was the amount of Della's profit?

A) $80

B) $105

C) $130

D) $150

Answers

Answer:

C) $130

Step-by-step explanation:

simplify the equation:

p = 210 - (20 * 4)

p = 210 - (80)

p = 130

I think the answer is c

can some one give th the right anwser and no website plz ill give u brainlynest

Answers

Answer:44

Step-by-step explanation:

Just you the proportions:

so you will get (20*33)/15 which is equals to 44

Answer:

44

Step-by-step explanation:

From the one side the relationship is 15:20, so for this side it's 33:??

15/20 = .75

33/.75 = 44

Find the lateral area and surface areas of a regular triangular right prism with base edge 10 cm and height 13cm. Round to the nearest tenth.

Answers

Ummm dang this a tuff one

A spinner with 20 equal-sized sections has 5 red, 10 blue, 3 green, and 2 yellow sections. Ann pays $10 to spin the spinner. If she spins a yellow, she wins $20; if she spins green, she wins $15; otherwise, she loses.She plays the game twice. What is the expected payoff for her games?

Answers

Answer:

The expected payoff for Ann is that she loses the game

Step-by-step explanation:

The expected payoff for Ann is that she loses the game, this is because only 5 out of the 20 sections allow Ann to win money, this is only 25% of the spinner. Meaning that 75% of the spinner will cause Ann to lose the game. Rolling two times increases the odds that she will lose the game. Since the greatest probability is that Ann will land on a section that causes her to lose the game, then this is the expected payoff.

Equation of a line


Equation of a line.

⚠️IF YOU KNOW, PLEASE HELP ME THIS I HAVE TO SUBMITTED TODAY!!! ( ⚠️


Write the Equation of the line in fully simplified slope- intercept form


Answers

Answer:

y=-6/5x-2

Step-by-step explanation:

We are given points (5,-8) and (-5,4)

Slope = m = (y₂-y₁)/(x₂-x₁) = (-8-4/(5-(-5)) = -12/10 = -6/5

Y-intercept = b = (0,-2)

Final equation: y=-6/5x-2

Answer:

y=-6/5x-2

Step-by-step explanation:

y=mx+b

Its sloping downwards, so a negative slope.

two points: (-5,4) and (5,-8)

---------------------------------------------

so first find the slope.

y2-y1 / x2-x1  <= formula

so: -8-(4) / 5-(-5)

which becomes => -12/ 10

which is 6/5 the slope is 6/5

------------------------------------------

plug this into y=mx+b, where m is the slope

so: y=6/5x+b

------------------------------------------

obviously b is the y intercept, where the line meets y

the y intercept is -2

sooooooo final answer is

----------------------------------

y=6.5x+(-2)

-----------------------------------

Negative slope, so becomes y=6/5x-2

What is the missing term?

Answers

Answer:

-8

Step-by-step explanation:

Multiply -4 and 2

Answer:

-8

Step-by-step explanation:

A package of Little Bites dog cookies costs $9.20. Which equation can be used to find the total cost, c, of p packages of dog cookies?

Answers

Answer:

c=9.20p

Step-by-step explanation:

cost is what you're solving for so that goes on the outside. each package costs 9.20 so you multiply however many packages by that number when finding the cost.

What is the point-slope form of a line with slope 2 that contains the point
(1,3)?

Answers

Answer:

(y-3) = 2(x-1)

Step-by-step explanation:

Point slope form is

(y-y1) = m(x-x1)  where m is the slope and (x1,y1) is a point on the line

(y-3) = 2(x-1)

BRAINLIEST TO CORRECT ANSWER! :) NO links as answers, or you will be reported!! (question 20)

Answers

It’s c if it’s not it’s B

Students sell 80% of the books at a book slae. They sell 48 books in all. How many books are at the book sale? Show your work.

Answers

Answer:

60 books were at the book sale

Step-by-step explanation:

Let

x = total books at the book sale

Percentage of books sold = 80% of x

= 80/100 * x

= 0.8x

Number of books sold = 48

Therefore,

0.8x = 48

Divide both sides by 0.8

0.8x / 0.8 = 48 / 0.8

x = 60 books

x = total books at the book sale = 60 books

Number of books unsold = Total books at the book sale - number of books sold

= 60 - 48

= 12

Number of books unsold = 12 books

Please help I have been stuck for a while now

Answers

Answer:

L'(1;1) M'(5;1) P'(5;4)

I need help with these questions its a bit hard to understand ill mark you the brainiest whos ever answer is in full sentence and makes sense

Answers

Answer:

Step-by-step explanation:

1. 520/13=40

140/7=20

40*20=80

2. 300*150=45000

   45000*6=270000

3. 230-70*2=90

   90/2=45 (width)

   70*45=3150(area)

 

What are the cordinates of the point on the directed line segment from -3 -9 to 4 5 that partitions the segment into a ratio of 5 to 2

Answers

Answer:

[tex](x,y) = (2,1)[/tex]

Step-by-step explanation:

Given

Coordinate: (-3,-9) and (4,5)

Ratio= 5 : 2

Required

Determine the point at the segment

The coordinate of the point is calculated using:

[tex](x,y) = [\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n}][/tex]

Where:

[tex]m : n=5:2[/tex]

[tex](x_1,y_1) = (-3,-9)[/tex]

[tex](x_2,y_2) = (4,5)[/tex]

So, we have:

[tex](x,y) = [\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n}][/tex]

[tex](x,y) = [\frac{5 * 4 + 2 * -3}{5+2},\frac{5*5+2*-9}{5+2}][/tex]

[tex](x,y) = [\frac{14}{7},\frac{7}{7}][/tex]

[tex](x,y) = (2,1)[/tex]

The coordinate of the point is: (2,1)

An aeroplane is 528 ft directly above an automobile and starts east at the rate of 20 miles an hour at the same instant the automobile starts east at the rate of 40 miles an hour. How fast are they separating

Answers

Answer: 20 mph

Step-by-step explanation:

Given

The airplane is at a height of 528 ft with a rate of 20 mph

The automobile is also directing east at the rate of 40 mph

at this instant, they are separating by the relative velocity between them

[tex]\Rightarrow v_{rel}=40-20=20\ mph[/tex]

plsssssssssssssssssssssssssssssssssss help

Answers

Answer:

m=10

n=12

Step-by-step explanation:

[tex]\frac{1}{5} m-\frac{1}{6} n=0\\m=\frac{5}{6} n\\5 \times \frac{5}{6} n-4n=2\\25n-24n=12\\n=12\\m=\frac{5}{6} \times 12=10[/tex]

There are 10 girls and 5 boys in Ms. Sander's class. Each day, she randomly asks one student to take attendance. In 180 school days, which is the best prediction for the number of times that the student will be a girl?

Answers

Answer:

120

Step-by-step explanation:

The probability of a girl being picked one day = 10/15 = 2/3

Total number of days = 180

Therefore, the nunber of times it will be a girl = 2/3 x 180 = 2 x 60 = 120

Hope this helps

Beth wants to buy a gaming system for $220.
• She plans to buy some games for $24.99 each.
• She will have to pay a 6% tax on all of her purchases.
• She must not spend more than $340.

Enter the greatest number of games that she can buy.
I NEED ASAP NOW

Answers

answer:

she can only buy 4 games

Of the 60 students who auditioned in a singing contest, 40% were asked to come back for a second audition. After the second audition, 6 students were asked to come back for a final audition.

What percentage of the students from the second audition were asked to come back for the final audition?

Answers

Answer:

25%

Explanation:

60 • 0.4 = 24

6/24 = 0.25 / 25%

Proof:

24 • 0.25 = 6

Work out the size of the interior angle of a regular 18-sided polygon.

Answers

Answer:

160°

Step-by-step explanation:

The formula below gives the measure of an interior angle of a regular polygon of n sides.

[(n - 2)180]/n

[(18 - 2)180]/18

16(10)

160

Answer: 160°


PLEASE HELP ME I REALLY NEED IT PLZZ !!

Answers

Answer: 72.32

Step-by-step explanation:

The line is 180 so

7x + 8x + 44.4 = 180

15x + 44.4 = 180

-44.4         =  -44.4

15x = 135.6

divide both by 15

x = 9.04

So 8 * 9.04 = 72.32

Answer:

The answer is 72.32°

Step-by-step explanation:

So, since that is a straight line, we know that all of the angles add up to get 180° total. Using this knowledge, we can determine that 44.4 + 8x + 7x = 180°.

First, we need to find what x is to find the missing values. To do that, we have to set all the values, 44.4, 8x, and 7x equal to 180, because we know they add up to 180°.

44.4 + 8x + 7x = 180

Combine the like terms.

44.4 + 15x = 180

Bring the 44.4 over to the other side in order to get x alone by subtracting it from 180.

15x = 135.6

Divide both sides by 15 to get x completely alone.

x = 9.07

Now we have what x is, 9.07.

All you need to do now is substitute 9.07 into the place of x.

8(9.07) = 72.32

So now you know that the highlighted angle is 72.32°.

Calculate the average rate of change for the graphed sequence from n = 2 to n = 4.
(2 points)

Answers

Answer:

Average rate of chage = [change of y] / [change of x] = [- 10.125 - (-.35)] /[4 - 2] =

= -3.3125

Answer: option B.

Step-by-step explanation:

please mark as brillant

Answer:

B.) −3.3125

Step-by-step explanation:

I am doing the test on flvs right now.

Determine whether the given value is a solution of the equation: x + 15 = 10; x=5 *

Answers

Answer:

It is not correct, x = -5

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

because 5+15=10

-15=15

x= -5

which means its NOT a solution because it equals -5

Zymirah earns 5% commission on all sales at a jewelry store plus $10 an hour. Yesterday she sold $3,200 in merchandise and earned a total of $240. How many hours does she work?

Answers

Answer:

8 hours

Step-by-step explanation:

Given data

Commission= 5%

Sales= $3,200

Total earnings= $240

Let us find the amount in commission earned

=5/100*3,200

=0.05*3,200

=$160

Hence 240-160=$80

$80 is the amount earned yesterday

we are told that per hour is $10

Hence $80 will be earned for

=80/10

=8 hours

Other Questions
Write a sentence illustrating each of these rules.1.The first word of every sentence must be capitalized.2.Every proper noun (or name) needs to be capitalized. 3.Always write the word I as a capital letter, no matter where you use it.4.Capitalize words that refer to relatives when using them as a name.5.Capitalize a title such as Mr., Dr., General, or President.6.Use a capital letter to begin each important word in the name of a place.7.Use a capital letter to begin the name of a country, the name of a nationality, or a word made from the name of a country or nationality.8.Capitalize days, months, and holidays, but not seasons.9.Capitalize the first word of a direct quotation.10.Capitalize the first word in every important word in the title of a book, a story, a poem, or a song. in what tab the translate button found Why did nationalism contribute to the rise of an empire in this period? After Rosa Parks was arrested on a Montgomery bus for refusing to give up her seat to a white passenger, civil rights leaders organized a nonviolent protest.What strategy did they use?A organized a protest march from Selma to MontgomeryB wrote letters to express their feelings about segregationC boycotted the Montgomery bus system LCM OF (2^335) and (35) is (a)8(b)120(c)40(d)180 chips. try chips now 7) Rob and Amy are selling cheesecakes for a school fundraiser. Customers can buy New Yorkstyle cheesecakes and chocolate marble cheesecakes. Rob sold 11 New York style cheesecakesand 7 chocolate marble cheesecakes for a total of $266. Amy sold 4 New York style cheesecakesand 14 chocolate marble cheesecakes for a total of $280. What is the cost each of one New Yorkstyle cheesecake and one chocolate marble cheesecake? The blue whale, the fastest marine mammal, can travel 60 miles in 2 hours. The fastest fish, the sailfish, can travel 136 miles in 2 hours. How much faster is the sailfish than the blue whale? A. 76 mph faster B. 58 mph faster C. 38 mph faster D. 26 mph faster If the outside diameter of a pipe is 1.25 ft and the inside diameter is 0.975 ft how thick is the pipe The list above are the results of which of the following? What is the value of x in the figure shown below? Which gives all the solutions of the equation x2 2x + 1 = 0? Which is bigger a population or a sample?a - Populationb - Samplec - They are both the same Answer the following question in 1-2 complete sentences. What is the difference between the Internet and intranet. 6.) Convert the following linear equation into slope-intercept form.4x + 3y = 9 Mark and Henry win some money and share it in the ratio 4:3. Mark gets 9 more than Henry. How much did they get altogether? A motorbike accellerates from 15m/s to 25m/s in 15 seconds. How far does thew motrobike trsavel in this time? why were white settlers and American Indians typically unable to live peacefully and neighboring areas Tom walks 2.12 km to the park he then walks a further 670 to the shop how many km has Tom walked in total Will mark brainliest.A radio disc jockey has 8 songs on this upcoming hour's playlist: 4 are rock songs, 2 are reggae songs, and 2 are country songs. The disc jockey randomly chooses the first song and the second is a reggae song? Write your answer as a fraction in simplest form.