The marks of Riju in Mathematics test increased from 20 to 30. What is the percentage of increase?

Answers

Answer 1

Answer:

hope it is helpful

Step-by-step explanation:

10 is the increase in number

orignal vale is 20

so

increase %=increase in orignal value/orignal value ×100

=10/20×100=50%


Related Questions

please help me 2/5+ -2 1/4

Answers

Answer:

-1.85

Step-by-step explanation:

Which r-value suggests a weak positive correlation?
A. r= -0.23684
B. r= 0.23684
C. r= -0.97917
D. r= 0.97917
The correct answer will get brainliest

Answers

Answer: D

Step-by-step explanation: I got this question on a test

I WILL GIVE BRAINLIEST
What is 10,000,000 written as a power of 10?

710

810

107

108

Answers

Answer:

[tex]10^7[/tex]

Step-by-step explanation:

There are [tex]7[/tex] zeroes in the number [tex]10,000,000[/tex]. Therefore, [tex]10,000,000[/tex] can be written as [tex]\fbox{$10^7$}[/tex].

*Any number written as [tex]10^n[/tex] will be equal to [tex]1[/tex] followed by [tex]n[/tex] zeroes.

Answer:10^7

Step-by-step explanation:

Two students are reading a book. Keith reads 6 pages a day. Tameka reads 5 pages a day, but he starts sooner and has already read 15 pages. Write a system of equations to represent the situation, using d for days and p for pages.

Answers

Answer:

P = 6d ; P = 5d + 15

Step-by-step explanation:

Given that :

Keith = 6 pages per day

Tameka = 5 pages per day

Tameka has already read 15 pages

If d = Number of days ; p = pages read

Keith :

Pages read, p = pages read per day * Number of days, d

P = 6d

Tameka :

Pages read, p = (pages read per day * Number of days, d) + pages read already

P = 5d + 15

The system of equations to represent the number of pages read per day by Keith and Tameka, using d for days and p for pages are,

[tex]\\P=6d[/tex]

[tex]P=5d+15[/tex]

What is the system of equation?

A system of equation is the set of equation in which the finite set of equation is present for which the common solution is sought.

Two students are reading a book.  Keith reads 6 pages a day. Equation for Keith, where d for days and p for pages can be given as,

[tex]P=6\times d\\P=6d[/tex]

Tameka reads 5 pages a day, but he starts sooner and has already read 15 pages. The equation for Tameka, where d for days and p for pages, can be given as,

[tex]P=5\times d+15\\P=5d+15[/tex]

Hence, the system of equations to represent the number of pages read per day by Keith and Tameka, using d for days and p for pages are,

[tex]\\P=6d[/tex]

[tex]P=5d+15[/tex]

Learn more about the system of equations here;

https://brainly.com/question/13729904

10. What is the value of xin the equation below?
4
2
+
7
2

Answers

2/x + 1/7 = 4/x

2/x + 4/x = -1/7 move the terms

Transform the expression

-2/x =-1/7 change the signs

2/x = 1/7 cross multiply

Final answer X= 14

Combine Like Terms
-3+5C+42C+12

Answers

Answer:

47C + 9

Step-by-step explanation:

arrange the like terms so you can combine them (5c + 42c) (-3 + 12)

Answer: -3 + 47C +12

Step-by-step explanation:

What is the value of x?
D
(x-4)
B
с
E
19
А
F

Answers

Answer:

How are we supposed to know what X is

Step-by-step explanation:

This doesn't make sense emphasize more

Answer:x=23 because 23-4=19 which equals to one side of the triangle

Step-by-step explanation:

Uhmm I got it right :D

what is the mean of these numbers?
-54,-32,-70,-25,-65,-42

Answers

Answer:

-48

Step-by-step explanation:

-54+-32+-70+-25+-65,+42 = -288

-288÷6= -48

Write an equation using x and y to represent the hanger?

Answers

Answer:

x + 3y = 4x + y

Step-by-step explanation:

it looks like both sides weight the same, also each triangle represents an x and each square represents a y

expand and simplify (2x+5)2

Answers

4x+10
(2x+5)2
2 x 2x= 4x
5 x 2= 10
4x+10
Answer:
4x + 10

Explanation:
2x x 2 = 4x
2 x 5 = 10

Emma needs to divide 7 by 4.
Which strategy can Emma use to get the answer?
A. She can multiply 7 by 2.
B. She can divide i by 7.
C. She can multiply 7 by 2.
D. She can divide 7 by 2.

Answers

Answer:

D) she can divide 7 by 2

Step-by-step explanation:

As, Division is not same as multiplication, so not the a option

And b doesn't have the right values

C is also wrong bc it have multiplication

So D is right

line segment AB is on the coordinate plane and has endpoints at A(-4,-8) and B(-5,-4) what is the length of the line segment to the nearest hundredth? A: 8.5 B: 4.12 C: 3.0 D: 2.24​

Answers

Answer:

D, 2. 24

Step-by-step explanation:

Angie wants to make a special cake for her family, but the recipe is in all metric measures. The recipe calls for 708 milliliters (ml) of milk. If 16 cups of milk = 3785.4 ml, how many cups of milk should Angie use for the cake? Round your answer to the nearest cup.

Answers

Answer:

theres some balls in my mouth

Step-by-step explanation:

Answer:

3 cups or 2.99254101 cups

Step-by-step explanation:

16 cups = 3785.4 mL

Convert 708 Milliliters to Cups

To calculate 708 Milliliters to the corresponding value in Cups, multiply the quantity in Milliliters by 0.0042267528198649 (conversion factor). In this case we should multiply 708 Milliliters by 0.0042267528198649 to get the equivalent result in Cups:

708 Milliliters x 0.0042267528198649 = 2.9925409964644 Cups

708 Milliliters is equivalent to 2.9925409964644 Cups.

How to convert from Milliliters to Cups

The conversion factor from Milliliters to Cups is 0.0042267528198649. To find out how many Milliliters in Cups, multiply by the conversion factor or use the Volume converter above. Seven hundred eight Milliliters is equivalent to two point nine nine three Cups.

Definition of Milliliter

A milliliter (also written "millilitre", SI symbol ml) is a non-SI metric system unit of volume which is commonly used as liquid unit. It is equal to 1/1000 liter, or one cubic centimeter, therefore, 1ml = 1/1000 L =1 cm3.

Definition of Cup

The cup is an English unit of volume, most commonly associated with cooking and serving sizes. It is traditionally equal to half a liquid pint in either US customary units or the British imperial system but is now separately defined in terms of the metric system at values between 1⁄5 and 1⁄4 of a liter. Because actual drinking cups may differ greatly from the size of this unit, standard measuring cups are usually used instead. In the United States, the customary cup is half of a liquid pint or 8 U.S. customary fluid ounces. One customary cup is equal to 236.5882365 millilitres.

The answer is 2.99254101 cups (rounded to the nearest cup it is 3 cups!)

Hope this helps!! ^^

Write an equation in slope-intercept form for the line that has a slope of 12 and passes through the point (3, 20).

Answers

Answer:

Step-by-step explanation:

It's a simple question as we know:

y-y1=m(x-x1)

y-20=12(x-3)

y=12x-36+20

y=12x-16

Now, your line is in slope intercept form you can compare it with

y=mx+c

m=12 and c=16. You can also put your point to verify your answer.

I’m not sure if it’s 1 but I know it’s not 3 and if you answer please Give an explanation !

Answers

Answer:

The answer is indeed 1.

Step-by-step explanation:

You are going to plug in the y values, and then plug in the choices for x to see which makes the statement true.

[tex]x + y = 6 - x \\ x + 4 = 6 - x \\ \\ (4) + 4 = 6 - (4) \: is \: 8 = 2\: \: \: |no| \\ \\ (2) + 4 = 6 - (2) \: is \: 6 = 4 \: \: \: |no| \\ \\ (3) + 4 = 6 - (3) \: is \: 7 = 3 \: \: \: |no| \\ \\ (1) + 4 = 6 - (1) \: is \: 5 = 5 \: \: \: |yes| [/tex]

Hey can someone kindly help me? If you respond with the answer I might consider giving you brainliest

Answers

Answer: The equation would be 250 + 20x = whatever the amount is  

They would pay $ 24,250 to rent it

Step-by-step explanation:

Can someone help? I really need help

Answers

The costs per 1 pound of grapes would be $3 since 9 divided by 3= 3

Yes she has enough because 6*3=$18 and she has $20

Hope this helps

Have a great day/night

Where do I place the dots at?

Answers

Answer:

Step-by-step explanation:

Simplify the expression:
4(2 + 4k)

Answers

Answer:

8 + 16k

Hope this helps

Step-by-step explanation:

Using Distributive Property : The answer will be 8+16k

775 earning 4.25% compounded annually after 12 years

Answers

the answer is $1,277.07

You must bye one hundred eggs with 100 cents. There are three types of eggs and you will need to buy all three types of eggs.Goose eggs must be bought in multiples of twenty. 1 chicken egg costs 5 cents 1 duck egg costs 1 cent 20 goose eggs costs 1 cent How many chicken, duck and goose eggs do you need to buy?

Answers

Answer:

1 duck egg

19 chicken eggs

80 goose eggs

Step-by-step explanation:

Given that:

Goose eggs must be bought in multiples of 20

20 goose eggs = 1 cent

1 chicken egg = 5 cents

1 duck egg = 1 cent

Total amount to spend = 100 cents

Total number of eggs to purchase = 100

In other to ensure that 100 cents is spent and 100 eggs is purchased :

Using logical analysis :

1 cent is spent on duck egg, so 1 duck egg is purchased

Goose eggs (sold in multiples of 20) for 1 cent each ; 4 cents is spent on (20 * 4) = 80 goose eggs

100 - (4 + 1) = 100 - 5 = 95 cents is spent on chicken eggs ; 95 / cost per chicken egg = 95 / 5 = 19 chicken eggs

Hence,

1 duck egg = 1 cent

(20 *4) goose eggs = 80 eggs ; 4 * 1 = 4 cents

19 chicken eggs = 19 * 5cent = 95 cents

(1 + 80 + 19)eggs = (1 + 4 + 95)cents

100eggs = 100centa

help asap i’ll give brainliest

Answers

The answer is a. 45 .

f(x) = 5x + 6; reflection in the x-axis

Answers

Once reflected over the x-axis y=5x-6

-5x + y = 1
- 10x + 2y = -2
plz answer right this is the last math problem i have to do!

Answers

Answer:

-1 -y/5

Step-by-step explanation:

-5x + y = 1

Subtract yy from both sides.

-5x=1-y

−5x=1−y

2 Divide both sides by -5−5.

x=-\frac{1-y}{5}

x=−

5

1−y

-10x+2y=-2

Factor out the common term 22.

2(5x+y)=-2

2(5x+y)=−2

2 Divide both sides by 22.

5x+y=-1

5x+y=−1

3 Subtract yy from both sides.

5x=-1-y

5x=−1−y

4 Divide both sides by 55.

x=\frac{-1-y}{5}

x=

5

−1−y

Please help me ASAP !!!

Answers

Answer:

B

Step-by-step explanation:

the first number x in (X,Y) is the domain and the second number y is the range. Domain is the set of all x values and range is the set of all y values

Janette has 386 pennies. 58 nickels and 19 dimes If Janette exchanges her coins for​ dollars, how many dollars will she have? How many cents will remiain?

Answers

Answer:

$8 ; 66 cents

Step-by-step explanation:

Given that:

Worth of penny, dimes and Nickel in cents and dollars

Nickel, n = 5 cents = $0.05

Dimes, d = 10 cent = $0.1

Penny, p = 1 cent = $0.01

Multiplying the number of each coin with its respective value ;

386(0.01) + 58(0.05) + 19(0.1)

$3.86 + $2.9 + $1.9

= $8.66

Changing it to dollar ,

$8.66 dollars = 8 dollars ;

$0.66 = 66 cents

Theo is using this spinner to predict the favorite movie genre of randomly chosen students in his school.

A spinner with 5 sections labeled action, drama, sci-fi, horror, comedy.

If Theo spins the spinner 60 times, how many times should he expect it to land on “Action”?
10
12
15
20

Answers

Answer:

c

Step-by-step explanation:

i took the quiz

Answer:

The answer is C) 15

Step-by-step explanation:


The length of a rectangle is 5 more than the width. The perimeter is 98.
What is the length, width and area of the rectangle? Explain

Answers

Answer:

Width=22, Length=27, Area= 594

Step-by-step explanation:

Let the width if the rectangle be represented by x

If the length is 5 more than the width

Length =x+5

The perimeter is given by

2(x)+2(x+5)=98

2x+2x+10=98

4x=88

x=22

Width=22

Length=27

Area= 22*27=594

Write 0.721 as a fraction. Show your work.

Answers

Step-by-step explanation:

721/100

It is correct answer

It would be 721/1000
(If you want me to explain I can)

Hope this helps

Have a great day/night

graph the solution to the inequality on the number line. please help me​

Answers

Answer:

Step-by-step explanation:

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