Mathematics Middle School

Use mental math to find the sum.
28 + 65

Answers

Answer 1

Answer:

94 is the answer hope this helps

Answer 2

Step-by-step explanation:

Sum: 93

I don't know what u mean by mental math sorry...

Related Questions

The length of an island is changing at the rate of –17 inches per year. How long will it take for the change in the length of the island to be –255 inches?

Answers

Answer:

15 years

Step-by-step explanation:

-255/-17=15

Based on the future dates concept, and the available content of the question, it will take 15 years for the change in length of the island to be -255 inches.

What is the Future date?

Future date is a term that is used to describe the major activities of a certain place or humans.

In this case, the time it takes for the change in length to be -255 inches we can set up the following equation:

Change in length = rate * time

-255 inches = -17 inches/year * time

To solve for time divide both sides of the equation by -17 inches/year:

time = -255 inches / (-17 inches/year)

Simplifying the expression:

time = 15 years

Therefore, in this case, it is concluded that it will take 15 years for the change in length of the island to be -255 inches.

Learn more about future events here: https://brainly.com/question/33300210

#SPJ2

HURRY PLS! fill in the boxes

Answers

Answer: the answer is y=[tex]\frac{5}{2}x+5[/tex]

Step-by-step explanation: the y intercept is where the line hits the y axsis in this case it happens to be 5 REMEMBER the RISE OVER RUN

pick any 2 points in the graph (always Pick the point that intersect the graph to make your life easier)

the points I picked wreally (-2,0) and (0,5) the RISE is going to be +5 and the RUN is going to be 2

( you really have to count slowly and carefully and always check your work i like to use Desmos for these type of questions to check)

y= 5/2x + 5 is the answer

Help me!! im stuck and please help me with range

Answers

Answer:9

Step-by-step explanation:

The range is the simplest measurement of the difference between values in a data set. To find the range, simply subtract the lowest value from the greatest value, ignoring the others.

Your answer, in this case, is 9. If your largest number is 10 and the smallest is 1.

10-1=9

Answer:

9

Step-by-step explanation:

The range is the simplest measurement of the difference between values in a data set.  So 10-1 is 9

Hope that helps

Is the statement true? explain
32 + (-17) is 17 units from 32, in the positive direction

Answers

The equation is not true because
32-17 is not equal to 32 + 17
Hope it helps!
Plz give me brainliest answer

Answer:

32 +( -17)=15

Step-by-step explanation:

I need help plz!!!!!!!!!!!!

Answers

6)486

7)28.32

8)3.3

9)2.538

10)34.45

11)7.92

12)22.125

13)38.5093

these should all be correct^^!

just type exactly the problem, into a calculator!
good luck on the rest of your assessment.

What’s 1000+2000+3000+4000+5000+600+70+80+9+69+12+35,574=
The best answers get brainliest

Answers

Answer:

51414

Step-by-step explanation:

1000+2000 = 3000

3000+4000 = 7000

5000+600+70 = 5670

3000 + 5670 = 8670

8670 + 7000 = 15,670

80+9+69+12+35,574= 35744

35744 + 15,670 = 51414

Answer:

1000+2000+3000+4000+5000+600+70+80+9+69+12+35,574= 51,414

Please solve questions 3-5!!! PLEASE SOLVE ON PAPER, PHONE ETC!! PLEASE SHOW WORK DUE TOMORROW!! I WILL GIVE BRAINLEST TO PERSON WHO SLOVES IT RIGHT OR FIRST

Answers

There u r 3-5 ^^ Hope u have a great day :D

Answer:

4) 32522              ( is the slash a one? )

5) 153822

6) 41634

7) 60214

8) 976336

10) 779394

11) 120317

12) 34980

Step-by-step explanation:

You multiply

I hope it is ok that I didn't show how I did but I answered them for you

need help on this pls

Answers

Answer: 2

Step-by-step explanation:

Slope is rise over run. So if we look at the points (1,1) and (0,3), you can see that it goes up by 2 units and over one unit, leaving you with "2/1", which is equivalent to 2.

Hope This Helps! :)

1. Round 7.058 to the nearest whole number.

2. Round 35. 61 to the nearest tenth.

3. Round 724.398 to the nearest hundredth.

4. Round $1.362 to the nearest cent.
Someone do these for me please.

Answers

1. 7
2. 35.6
3. 724.40
4. 1.36
1 . 7
2. 35.6
3. 724.40
4. 1 cent

What is the missing value for x on the diagram below?

Answers

Answer:

56 degrees

Step-by-step explanation:

Right angle is always 90

Triangle is 180

90+34= 124

180-124= 56

I think the a answer is 54: If they gave you a 90 degree angle, and another angle. Subtract the total from 180 degrees to find the remaining angle.
I’m not sure if I’m right

Plz help me with these last 2 questions

Answers

I believe it’s 192 Square inches

Answer:

192

Step-by-step explanation:

Use mental math to find the difference.
82-37

Answers

Answer:

45

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

I made the 8 turn into a 7 and made the 2 into a 12 and subtracted 12 - 7 which give you 5 for the right side of the number, then did 7 minus 3 which is 4 for the left side giving you 45

The temperature in the potter’s kiln dropped 760 degrees in 4 hours. On average, how much did the temperature drop per hour?

Answers

160 degrees per hour
140 degrees per hour I think

Please help explain this to me

Answers

You divide 12 and 90 with 2 you can’t divide it anymore because you can’t divide 6 and 45 with the same answer.
I hope you understand a little better

Answer:

2/15  12/90=2/15

both 12 and 90 are multiples of 6 so we divide both of this by 6

so 12 divided by 6 is 2 and 90 divided by 6 is 15

so simpiflied 12/90 is 2/15

write in word form: 40-(8+6)

Answers

Answer:

Not exactly sure if this is what you mean but...

forty minus, parenthesis, eight plus six, end parenthesis

Step-by-step explanation:

40 minus In parentheses 8 plus 6

Rinni was able to plant 15 flowers in five minutes. At this rate how many flowers because she plant in 45 minutes ANSWER RATS

Answers

Answer:

The correct answer is 135

Step-by-step explanation:

This is because her rate is 15 flowers per 5 minutes, and there is 45 minutes. Therefore, 5 minutes occurs 9 times in 45 minutes and fifteen flowers times 9 groups of five minutes is 135.

Answer:

135

Step-by-step explanation:

Because if it took 5 mins to plant 15 flowers, you can count how many 5's there are in 45 which there is 9 fives In 45 so, 15x9=135 and therefore she planted 135 flowers in 45 minutes :)

List 5 examples of positive and negative things around us

Answers

The 10 Common Positive Emotions:

Love.Serenity.Forgiveness.Awe.Joy.Interest.Hope.Pride.

Examples of negative thoughts include: All or nothing: “If this date isn't successful, I'll be single forever.” Overgeneralizing: “I've been bad at every single job I've had.” ... Mind reading: “All my friends/co-workers/family think I'm mad

- BRAINLIEST answerer ❤️✌

Negative things around us
- people’s negative thoughts or feeling
- the air quality
- pollution
- toxics in the air
- fires

Positive things
- plants
-animals
-people
- family
- friends

Which of the following is an improper fraction?
[tex]\frac{21}{25}[/tex]
[tex]\frac{8}{7}[/tex]
[tex]\frac{6}{11}[/tex]
[tex]\frac{2}{3}[/tex]
May i please know this quickly! :)

Answers

Answer:

8/7

Step-by-step explanation:

8/7 because the numerator is greater than the denominator.

Answer:

8/7

Step-by-step explanation:

a fraction in which the numerator is greater than the denominator, such as 5/4.

A local farmer started the year with 56 farm animals. At the end of the year, the farmer had 63 farm animals. What was the percent of change? (Show work)

Answers

Answer:the percentage change is 7.

Step-by-step explanation:

The percentage is 7 because 63-56=7

Answer:

The answer is a increase of 12.5%

Step-by-step explanation:

The equation to find this is new minus old divided by old times 100, so it would be 63 minus 56 divided by 56 which gives you 7 over 56 times 100. 7 over 56 times 100 equals 12.5 so 12.5% is the answer

Referring to the figure, find the circumference
of the circle. Round the answer to the nearest whole inch.

Answers

Answer:

188 inches

To find the circumference, multiply the diameter by pi which is 3.14

Step-by-step explanation:

A certain whale can eat up to 2,400 pounds of food in a day. Which of the following best represents an estimate of the pounds the whale can eat in a day?

A. 2 x 10³

B. 3 x 10²

C. 2 x 10⁴

D. 3 x 10³

Daily Question For Fun!!!

Answers

The answer is A because if you do 10*10*10 that would give you 1k and if u multiply that by 2 you get 2k

Answer:C

Step-by-step explanation:

3/16+ (-11/20)
Can you help me?

Answers

Answer:

-29/80

Step-by-step explanation:

remove parenthesis 3/16 - 11/20

then simplify

-29/80

The answer is -0.3625

PLease help if its right you get brainliest. No cap. Also please make sure you get it right. Lol

Answers

Answer:

63

Step-by-step explanation:

1 : 21

2 : 42

3 : 63

Hopefully this helps!

Make an equation that has the numbers : -3.78 , -1.2y, and -4.2y

Answers

Answer: In solution

Step-by-step explanation:

Well, first you need to arrange the numbers in anyway, separated by operations. I just did:

-3.78 + (-1.2y + -4.2y)

We then need to come up with the other side of the equation.

For this, I added the like terms:

-3.78 + (-1.2y + -4.2y) = -3.78 -5.4y

Then, I came up with a value for y. Y = 5

Then, I multiplied -5.4 by 5, getting -27 so,

-3.78 + (-1.2y + -4.2y) = -3.78 - 27

Again, I collected like terms:

-3.78 + (-1.2y + -4.2y) = -30.78

Now, I have my equation.

———————————————————————————————

HOW TO SOLVE THE EQUATION

-3.78 + (-1.2y + -4.2y) = -30.78

1. Add 3.78 to both sides

-1.2y + -4.2y = -27

2. Collect like terms

-5.4y = -27

3. Divide both side by -5.4

y = 5

Answer:-

-3.75 + -1.2y = -4.2y

Step-by-step explanation:

the answer would then be that y= 1.26 when solved

HELP

Would i times them

Answers

Answer:

yeah you would

Step-by-step explanation:

yes you would times them

solve -3 < -x - 2 < 4

a) -5 < x < 2
b) -5 > x > 2
c) -1 < x < 6
d) -6 < x < 1

Answers

-5<×< 2 it is a. answer

ok va ma

please help i need to pass so bad

Answers

Answer:

A

Step-by-step explanation:

sorry if i am wrong

Answer:

I believe its A. Sorry if i'm wrong.

Step-by-step explanation:

7x+9=23
WHAT IS X
please answer thx

Answers

Answer:

x = 2

Step-by-step explanation:

23 - 9 = 14

14 / 7 = 2

Choose all the fractions that are equivalent to [tex]\frac{4}{8}[/tex]. (Click all that apply)
[tex]\frac{2}{6}[/tex]
[tex]\frac{8}{16}[/tex]
[tex]\frac{1}{2}[/tex]
[tex]\frac{3}{6}[/tex]
[tex]\frac{5}{10}[/tex]
[tex]\frac{7}{11}[/tex]
I really badly need to know this soon!

Answers

1/2, 3/6, and 8/16. Do you know how to simplify?

Answer: 8/16, 1/2, 3/6, and 5/10.

Step-by-step explanation:

4/8 simplified is 1/2, so if you simplify all the fractions, you will get the results I listed in the answer.

i need help i start school any minute!!!! How many cups of cornmeal should be added to 45 gallons of water pls help

Answers

10 1/2 is the correct answer actually
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