Explain how to calculate these mentally

a. 15 is what percentage of 30
b. 3 is what percentage of 12
c. 6 is what percentage of 10

Answers

Answer 1
A. 15 is 50% of 30
B. 3 is 25% of 12
C. 6 is 60% of 10

Related Questions

What is the value of the expression when x=2:

7x - 5

Answers

The answer to your question is 2

Which function has a greater rate of change? Explain. (2 points total, correct rate of change

Answers

Function A has a greater rate of change

To find the rate of change for function A, you have to divide the value of y by the value of x, and when you do that, you get about 4.55 and Function B already has the rate of change because in the equation, the rate of change is going to be multiplied by the value of x, so the rate of change is -4.5. 4.55 is greater than -4.5 so function A has a greater rate of change
I agree with the other comment

I have provided the question below

Answers

the answer is to the question is b

Which correlation does the two-way table suggest?

Answers

Answer:

The answer is C.

Hope this helps :)

-ilovejiminssi♡

6.) c - 7x when c = -4 and x = -7 *
5 points
7.) 2s - 9w when s = 7 and w = -3 *
5 points
8.) 6f- 4n - 5 when f = -8 and n = -3 *
5 points
9.) 4r + 2c -7 when r = -5 and c = 6 *
5 points
10.) 4h - n when h = 8 and n = 6 *
5 points

Answers

6.45
7.-13
8.-41
9.-15
10.26
Exactly what he said

Find the area of a circle whose center is at (5, 3) and passes through the point (5, 8).

Answers

Answer:

Step-by-step explanation:

5,8 hope I helped

Answer:

Step-by-step explanation:

where the vid or somthing

Tyler paid $16 for 4 raffle tickets.
What is the price per ticket?

Answers

Answer:

$4

Step-by-step explanation:

16 divide by 4 equals 4

Answer:

$4 per raffle ticket

Step-by-step explanation:

I would make a proportion:

?= price per ticket

4 - $16

1  - ?

Solve: 1×16÷4= 4

Simplify the Radical Expression, Step-by-step. If you don't you'll get reported.

[tex]\sqrt[45]{-125}[/tex]

Answers

the answer is as shown on the photo

add use models if needed (-3x+7)+(-6x+9)

Answers

-9x+16 is the answer , pls lmk if i’m wrong !!

A student formed a pattern in which each term is represented by a sum. The first four terms of the pattern are shown below.
sum table

A n squared

B 4n

C n + 3

D 2 to the power of n

Answers

Answer:Its C \pi r^{2}h

Step-by-step explanation:

did that before

please in through steps, how would i solve this problem? i have never done this and i want to learn.
the problem:
4(2h+g)

ty!

Answers

1.) Rearrange terms                                 Hope this helps!! :))

    4(2h+g)

    4(g+2h)

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

2.) Distribute

    4(g+2h)  

    4g+8h

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

Solution

4g+8h

Answer:

║⊕║Hello Person║⊕║

How to Solve: 4(2ℎ+)

Rearrange terms

4(2ℎ+) To 4(+2ℎ)2

Distribute

4(+2ℎ) To 4+8ℎ

Solution

4+8ℎ

Step-by-step explanation:

Hope this helped! Brainliest would be appreciated! If you wish share the smarts! :D I was happy to help!

Have a wonderful and blessed day!

Please help with this question

Answers

The answer is c because when you have 1 number and a variable(s) you just add the number to the variable(s)
The answer is C love

he scatter plot shows the average heights of children up to age 5.
Part A
Drag numbers to complete an equation for the trend line. Numbers may be used once, more than once, or not at all.

(22, 2.5, 18, 32, 4.5)

y = ?x + ?

Part B
Using the linear equation, predict the average height for a two-year old.

A. 15 inches
B. 22 inches
C. 31 inches
D. 35 inches​

Answers

I think answer should be d. Please give me brainlest let me know if it’s correct thanks bye
ITS D THATS Goin BE THE RIGHT ANSWER

Please help me with acellus

Answers

I know its something‍♂️

correct=brainleist
whats x= ?

Answers

Answer:

x = 45. Flip the fraction, then multiply by the answer.

Answer:

x=5 (not 45lol)

Step-by-step explanation:

Thomas has four jugs of different sizes. One holds 1.2 liters, one
holds 1.3 liters, one holds 2.3 liters, and one holds 2.6 liters. He
has to fill a large barrel with exactly 5 liters of water. How can
he use the jugs to pour this amount into the barrel? Find as
many ways as possible.


I understand but I don’t- so yeah if you can help that would be great.., I’ll give Brainliest

Answers

I don’t know how to do these

Will give Brainliest this is a composite figure show work too and find the area

Answers

Answer:

80 in.

Step-by-step explanation: you add 13 plus 13 plus 7 plus 7 plus 20 plus 20 because for the whole area.

13

13

20

20

 7

 7

-------

80  

Which pair shows equivalent expressions?

Answers

Answer:

-2x-10 = -2(x+5)

Answer:

It is the 2nd one

Step-by-step explanation:

trust me and don't forget to give me brainliest

please help me with this

Answers

Answer:

Step-by-step explanation:

s=7

because 56=8s

need help with this one

Answers

Answer:

C

Step-by-step explanation:

Answer:

The last one I think

Step-by-step explanation:

vhhzksnnsnxbxkxbxjs

Gavin and Ethan are training for a race. Last week, Gavin ran 7 kilometers, and Ethan ran twice as far as Gavin. What is the total distance that Gavin and Ethan ran last week? Express your answer in meters.

Answers

They ran 21 kilometers in total
Gavin + Ethan = 21 kilometers

x2/5 = 3/20
Solution: x=________

Answers

X=0 solve by simplify both sides of the equation then isolating the variable sorry if wrong
2/5 x = 3/20
x = 3/8 or 0.375

Answer quickly for a reward. [Even more, points if it's correct!]

--See attachment--

Answers

Answer:

c & a

Step-by-step explanation:

36,000 x 1.045 = 37620

37620/365 104.5

(37620 divided by the number of days in a year)

(104.5 = the % increscent every year &

37620 = how much he is payed right now per year)

A = John initially earns $37,620 per year

C = John's salary increases 104.5% per year

c and a is the correct choice

A jogger runs 3/5 of a mile in 1/4 of an hour. If they continue at the same rate, what is thw unit rate of the jogger, in miles per hour? Type in the number as a decimal that would be accurate to the problem.

Answers

Answe

Step-by-step explanation:

Answer:2.20

Step-by-step explanation:

4x3=12

12/5=2 2/5 of 2.20

On treat day at a school, every 9th student through the lunch line receives a free cookie, and every 12th student receives a free ice cream sandwich. What is the number of the first student who will receive BOTH the free cookie and ice cream sandwich?

Answers

The correct answer should be 36

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

C.

Step-by-step explanation:

7 distributes and subtracted by 25

Answer: C
= 7·(s + d) - 25

Explanation;

Cost of each plant both buys = $7
No. of plants Stephanie wants to buy = s
Total cost of plants bought by Stephanie = 7·s
No. of plants Diego wants to buy = d
Total cost of plants bought by Diego = 7·d
Total cost = 7·s + 7·d
= 7·(s + d)
Discount applied through coupon = $25
So, Total cost of all their plants with discount = 7·(s + d) - 25

Solve the problem below and then choose the correct answer.
(6x - 6.3) divided by 3
Group of answer choices
(2x -2.1)
(8x + 28)
(3x - 3.15)

Answers

(2x - 2.1)
Hope this helps
Option one is correct.

Ok dont look at the one i marked just figure it out ..I will give you brainliest...
By the way dont steal my points

Answers

Answer:

7.5

Step-by-step explanation:

Answer:

3rd one

Step-by-step explanation:

take it or leave it

The total cost of your pizza is 6.46.

The total number of pizzas needed to feed 120 students is 30.
Using the cost per pizza and the number of pizzas need to feed 120 students, how much would it cost to feed the 120 students? (Each student will only get one slice) giving brainlist for the first correct answer

Answers

Answer:

193.80

Step-by-step explanation:

30x6.46=193.80

Correct answer would be $193.80

How many 1/16s are in 10 & 1/2?

Answers

Answer:

Step-by-step explanation:

First, let's see how many 1/16's go into 10.

16*10

160

160 1/16's go into 10.

Now let's see how many 1/16's go into 1/2.

8/16 = 4/8 = 2/4 = 1/2

8 1/16's go into 1/2.

Now let's add those two numbers together.

160 + 8 = 168

168 1/16's go into 10 1/12.

Hope this helped!

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