Mathematics Middle School

What is the sum of all two-digit whole numbers
whose squares (think exponents!) end with the
digits 21?
What is the sum of the two digit numbers?

Answers

Answer 1

Answer:

11x11

Step-by-step explanation:

11 x 11 =121

Answer 2
11 x 11 = 121…………………..

Related Questions

Gerry bought tires for his car. The tires cost $80 each and should be replaced every
64000 km. Gerry drove 4000 km on his vacation. What was the cost of the wear on his tires?

Answers

Answer: $5.32

Step-by-step explanation:

4000/64000 = 0.065

0.065x100  = 6.65%

6.65% of $80 is $5.32

The answer is = 5.82 I hope this helps!!!!!

Help please!!!!!! 8 minutes left

Answers

Answer:

C. 6.9 miles

Step-by-step explanation:

Use Pythagoras theorem!

a^2 = b^2 + c^2 where a is the hypothenuse

rearrange to find x

a^2 - b^2 = c^2

so 8^2 - 4^2 = x^2

64 - 14 = 48

√48 = 6.9 miles :)

ITS OK I ALREADY WORK OUT THE PROBLEM THE PROBLEM IS C

Lily needs to order some new supplies for the restaurant where she works. The restaurant needs at least 420 spoons. There are currently 159 spoons. If each set on sale contains 6 spoons, write and solve an inequality which can be used to determine s, the number of sets of spoons Lily could buy for the restaurant to have enough spoons.

Answers

They need 420 spoons, right?
But they already have 159.
So they are missing 261.
The spoons on sale, are 6 spoons per set.
So you are gonna divide 261 by 6.
Which gives her 43.50 sets of spoons
But you have to round that up to 44 sets of spoons.

(sorry if that was confusing or it didn’t make sense i’m not that good at math but i try lol.)
44 set of spoons- 420-159=261. 261/6=43.5 round it to 44

if 2+2=4 what does 4000 +900 +500+900+800+100+500+500+500=

Answers

Answer: 8,700

Step-by-step explanation:

lets say you have 500 animals, and you decide to get another 500, but you decide that you want an extra 500, and then your kid says that they want another 500 animals. You now have 2000 animals, but you also need 4000 chickens so you now have 6000 animals. Then you need 900 pounds of animal food, but 900 pounds is weird so you get an extra 100 to make your total 1000. But now you need 800 dogs so you now have 2800 animals.

4000 + (500 x 4) + 900 + 100 + 800 = 8,700

Answer:

The answer would be 8700

HELP ME PLEASE!!!!!? Question on photo

Answers

Answer: The hieght is 12.7 inches

Step-by-step explanation:

r=d/2

3.5/2=r

r=1.75

v=pir²h

122.5 =piR²h

122.5=pie1.75²h

The frist thing to solve for r sense exponents come before multiplication in bedmask

122.5 =pi3 .06g

so then it's pie times r

122.5=9.61 *h

122.5/9.61=h

12.7=h

Height is 12.7 inches

The photography club is selling hot chocolate at soccer games to raise money for new cameras. The table shows their profit per game for the first five games.
Game Profit ($)
1 −12.50
2 −10.15
3 18.65
4 25.90
5 45.75
Based on the average profit per game, how much total money can the club expect to earn by the end of the 10-game season?



__ dollar(s)

Answers

Answer:

First, we need to take the average of the numbers. So, we will add 12.50, 10.15, 18.65, 25.90, and 45.75, getting us 112.95. Then we need to divide this by 5 to get the average profit for each game, getting us the number 22.59. Then we add up the money already earned with 22.59*5 (getting us 112.95 + 112.95), which gives us the number $225.9.

Hope this helps!

The total profit by the end of the 10-game season is $225.9.

How to calculate the average?

In order to calculate average, divide the total sum of the data to the total number of data. An average is a standard number for a given data whose value can both be more or less than it.

The given problem can be solved as follows,

The average profit for the five games can be calculated by summing the profits all the five games and then dividing it by 5 as below,

(12.50 + 10.15 + 18.65 + 25.90 + 45.75)/5 = 112.95/5 = 22.59

Now, the profit for 10 games is the average profit multiplied by 10.

22.59 × 10 = 225.9

Hence, the total money the club can expect to earn by the end of the 10-game season is $225.9.

To know more about average click on,

https://brainly.com/question/12322912

#SPJ2

Question is in picture, thank you

Answers

Answer:the answer is c

Step-by-step explanation:

Answer is c I’m sure hope that helps!!!

PLEASE HELP ME

Evaluate.

a−2b when a=−2 and b=4

Enter your answer in the box.

Answers

-2-2*4=
-2-8=-10,,, replace the numbers with the letters, perform the operations. Multiplication before subtraction or addition
The answer is 6

Start with -2-2(4)

Multiplication first, so 2(4) is 8
Now you have -2-8

-2-8 is -10

How much interest does a $7,149.38 investment earn at 5% over three years?

Answers

Answer:

Step-by-step explanation:

5% x $1,000 x 4 = $200 so its 200

$1072.41 is what im assuming base off the fact that you can just multiply the investment times .05 = 357.47 after being rounded times 3

50 divided by 7???


JUST ANSWER PLEASE XDD

Answers

7 1/7
OR
7.14
Hope this helps

Answer:

7 1/7 or ~7.14

Step-by-step explanation:

Use long division. See the attached image for my work.

A track team needed to run or jog 20 laps for their practice. Of the total 20 laps, Sara completed 45, Jamie completed 58, Keenan completed 59, Maya completed 0.833, and Trey completed 0.875. Identify the descending numeric order of the laps completed.

Answers

Answer:

59 keenan

58 Jamie

45 sara

0.875 trey

0.833 maya

The descending numeric order of the laps was completed as 59, 58, 45, 0.875,0.833

What is descending order?

Descending order is defined as when numbers (or other items) are arranged from the largest numbers to the least numbers, it is said to be in descending order.

Sara finished 45 laps, Jamie completed 58, Keenan completed 59, Maya completed 0.833, and Trey completed 0.875.

We have the given numbers as:

45, 58, 59, 0.833, 0.875

we have to determine the descending order of given numbers

Here the largest numbers to the least numbers, it is said to be in descending order.

⇒ 59  > 58  > 45  > 0.875 > 0.833

Hence, the descending numeric order of the laps completed:

Keenan completed 59 laps

Jamie completed 58 laps

Sara completed 45 laps

Trey completed 0.875 laps

Maya completed 0.833 laps

Learn more about the descending order here:

brainly.com/question/233644

#SPJ2

SOLVE CORRECTLY AND SHOW WORKKKK!

Answers

Answer:

36 square miles and 23040

Step-by-step explanation:

36 is given and 640x36

36 square miles
23040 acres


Work:
640x36

Help please? Am literally crying rn pls help it’s due tmrw :(

Answers

$70.88

$103.69
$419.78
$1312.50

$13125.00

Answer:

$67.50- $3.38- $70.88

$98.75-$4.94-$103.69

$399.79-$19.99-$419.78

$1,250.00-$62.50-$1,312.50

$12,500.00-$625.00-$13,125.00

Brainliest to the correct answer! >.>

The temperature of a solution increases by 1.2∘F each minute for 3 minutes. The solution is then placed in an ice bath, and its temperature decreases by 12∘F over the next minute. What is the current temperature?

Enter your answer as a decimal in the box.

Answers

Answer:

-8.4

Step-by-step explanation:

multiply 1.2 x 3 then subtract the answer by 12


-8.4
you can multiply 1.2 by 3 then subtract the answer by 12

Question on photo
A. 16
B. 29
C. 27
D. 21

Answers

It’s gonna be A 16 BECAUSE ….
The answer would be A-16

Tristan and three of his friends travel across the country. They spend three days at a hotel. They decide to split the cost of the hotel room that cost a total of $275.00. How much did each person spend? Use long division to answer

Answers

Answer:90

Step-by-step explanation: If you do 275 divided by 3 it equals 90

An equation that shows that two ratios are equal is a(n) _________.


rate
ratio
unit rate
proportion

Answers

Answer: proportion

Step-by-step explanation: a proportion shows that two or more fractions or ratios are equivalent

It would be a Proportion

PLEASE HELP MEE, ILL GIVE 10 POINTS FOR IT

Answers

The answer to the problem is (-3, -6)

Answer:

  (x, y) = (-3, -6)

Step-by-step explanation:

You want the solution to the system of equations 6 = -4x +y, -5x -y = -21 using the substitution method.

Expression for y

Adding 4x to the first equation gives an expression for y:

  6 +4x = y

Substitution

This can be substituted into the second equation:

  -5x -(6 +4x) = 21

  -9x -6 = 21 . . . . . simplify

  -9x = 27 . . . . . . . add 6

  x = -3 . . . . . . . . . divide by -9

  6 +4(-3) = y . . . . . . . find y using the expression for y

  6 -12 = -6 = y

The solution is (x, y) = (-3, -6).

SOLVE CORRECTLY AND SHOW WORKKKK!

Answers

Answer:

$50

Step-by-step explanation:

75(3)= 225

225-175= 50

Your budget is $225 and you exceeded it by $50 so you need atleast $50 dollars more.

50 dollars.

75*3=225
225-175 is 50

What is the cost of the bicycle repair?
Labour: 1.25h at $14.60/h
Parts: $8.87

Answers

It would cost $27.12
14.60*1.25=$18.25
$18.25+8.87=$27.12

27.12 is the correct answer because 1.25 x 14.60 + 8.87 = 27.12

Help
Evaluate.

(2a−7)÷b when a=8 and b=3

Enter your answer in the box.

Answers

Answer:

3

Step-by-step explanation:

So you have to take the equation, (2a - 7) ÷ b, and you must plug in the numbers for the variables.

(2a - 7) ÷ b

(2(8) - 7) ÷ 3

(16 - 7) ÷ 3

(9) ÷ 3

= 3

Hope this helps!!! :)

Help
Evaluate.

(2a−7)÷b = 3

A line passes through the points (2,20) and (9,27) Write a linear function rule in terms of x and y for this line.

Answers

Answer: It would be x = y-18

Step-by-step explanation:

When you line them up it would look like this

2,20

9,27

To get to 9 from 27 you would have to subtract 27 by 18 and you would get 9

To get to 2 from 20 you would have to subtract 20 by 18 and you would get 2.

HELPPPP
Ravi wants to buy a new guitar that costs $129.99. He has $27, and decides to give music lessons to earn the rest of the money. Ravi decides to charge $22 per lesson. Which inequality would best help Ravi find m, the number of lessons he would need to give in order to buy the guitar?

Answers

Answer:

Step-by-step explanation:

A. 22m + 27 129.99

27 + 22m ≥ 129.99

this is because ravi needs AT LEAST $129.99. (it could be = too if thats an option, but you said inequality so i think its this!!)

ravi already has $27, and he just needs to charge music lessons to get the rest, which is $22 per m (music lesson).

so, 27 + 22m ≥ 129.99!!

i hope this helps!! im sorry im bad at explaining things! <33

A lemonade recipe calls for 1/4 cup of lemon juice, 1/2 cup of sugar, and 1 cup if water.
You want to make three batches.
Complete the table for each batch.
Sugar (cups) Lemon Juice (cups
2 _
10 _
5 _
Please do a step-by-step answer. Due tomorrow!!

Answers

Malanie is making lemonade and finals a recipe that requires lemon juice, sugar, and water in the ratio of 1:2:8

She uses 2 lemons to obtain 6 tablespoons of lemon juice.

16 tablespoons = 1 cup
1 tablespoon = 1/16 cup
6 tablespoons = 6/16 cup = 0.375 cups
Since ratio between lemon and sugar is 1:2

So amount of sugar required = 0.375 x 2=0.75 cups

Ratio between lemon and water is 1:8

So amount of water requires = 0.375 x 8= 3 cups

Therefore amount of lemon juice, sugar, and water required = 0.375 cups, 0.75 cups sugar and 3 cups respectively

help pls its due today thank you

Answers

6:3, 16:8, 2:1. To figure out if ratios are equivalent, depict them as fractions and see if they simplify to the same value.
The answer is 6:3, 16:8, 2:1. To figure out if ratios are equivalent, depict them as fractions and see if they simplify to the same value.

Find the difference between 288 and 122

Answers

There are 166 numbers in between 288 and 122.

If that didn`t help and I need to add more, tell me and I will!

Answer: The answer is 166. Difference stands for subtraction (-).

I hope this helps.

Question on photo!!! Help please!!

Answers

Answer:

ITS B)

Step-by-step explanation:

NP:D

The answer is B. Multiply all the sides together to calculate the surface area of a rectangular prism. Length x width x Height

Enter your answer and show all the steps that you use to solve this problem in the space provided.

Factor the expression.

20k + 50


need answers now pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls

Answers

10(2k +5)

When you factor you take the GCF of both numbers and place it outside of the parentheses

Distribute the exponent (2a/p^2*q^3)^4

Answers

Answer: 16a^4/p^8 * q^12

Step-by-step explanation:

(2a/p^2*q^3)^4=

(2a/p^2)^4 * (q^3)^4=

(2a)^4 / (p^2)^4 * (q^3)^4=

2^4 * a^4 / (p^(2*4)) * (q^(3*4))=

16 * a^4 / p^8 * q ^ 12 =16a^4/p^8 * q^12

How much interest is earned on $2,078.24 at 0.6% for eight years?

$1096.99
$109.96
$199.76
$99.76

Answers

I’m sorry but Yk try 0.6% of 2078.24
2078.24 times 0.6% (divide by 100=0.06) so 2078.24 times 0.06 equals interest for 2078.24
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