Mathematics Middle School

a.-7=3a-10
b.2a+13=3
c.-5a+14=59
d.-23=4a-15
e.-90=-9-9a

Answers

Answer 1

Answer:

a. 1

b. -5

c. -9

d. -2

e. 11

Step-by-step explanation:

a. -7 = 3a-10

-7+10 = 3a

3 = 3a

a = 1

b. 2a+13 = 3

2a = 3-13

2a = -10

a = -10/2

a = -5

c. -5a+14 = 59

-5a = 59-14

-5a = 45

-a = 9

a = -9

d. -23 = 4a-15

-23+15 = 4a

-8 = 4a

-2 = a

a = -2

e. -90 = 9-9a

-90-9 = -9a

-99 = -9a

-99/-9 = a

11 = a

a = 11

Related Questions

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What type of scenario produces a constant interval?

Answers

Answer:

A horizontal line; a melting ice cube. Step-by-step explanation: A constant interval appears as a horizontal line

Step-by-step explanation:

A horizontal line; a melting ice cube. Step-by-step explanation: A constant interval appears as a horizontal line.

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7f + 2f - 3b + b

I can't figure it out ​

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Answer:

9f-4b

Step-by-step explanation:

you add the two fs together and you add the two bs together to get the answer

Simplify by combining like terms 5 4/7i+4 3/5i

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Simplify by combining the real and imaginary parts of each expression

Answer: 356i/35

Please answer quickly!!!

Rewrite the expression you developed in part B as a single term with a fractional coefficient.

Expression: c + 1/4c

Answers

Answer:

Answer: 1 1/4c or 5/4c

Step-by-step explanation:

c is same thing as 1c

1c + 1/4c

(In simple words: Adding a whole to 1/4.)

1 + 1/4 = 1 1/4 or 5/4

same thing when having c:

1c + 1/4c = 1 1/4c or 5/4 c

Answer:

1 1/4c

Step-by-step explanation:

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Answers

Answer:

C

Step-by-step explanation:

Let's see if this makes sense and applies to all of the pairs.

1. y will be 2

x will be 6

2=1/3(6)

1/3 times 6 is 2.

2. y will be 1

x will be 3

1=1/3(3)

1/3 times 3 is 1.

3. y will be 0

x will be 0

0=1/3(0)

1/3 times 0 is 0.

4. y will be -1

x will be -3

-1=1/3(-3)

1/3 times -3 is -1.

They all apply to C meaning that C is the right answer.

Answer:

1) A. y= 3x

2)B.

3) C

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There are 4 breakfast choices in a school cafeteria: Cereal, Granola Bar, Breakfast Sandwich, and Fruit. The percentage of students that chose cereal is 20%. If 60 students chose cereal, what is the total number of students that ate breakfast?GIVING BRAINLIEST
A.
120
B.
300
C.
320
D.
360

Answers

Answer:

B. 300

60 · 5 = 300

Answer:

300 students

Step-by-step explanation:

So just to summarize the question we know that 20% of students = 60 students. and we know that there are five 20 percents in 100% if that makes sense the example below explains it much clearer:

 1          2         3          4        5

20% + 20% + 20% + 20% + 20% = 100%

So to figure out how many students are in 100% we have to multiply it by 5 since there are 5 20 percents in 100%

So 60 students times 5 = 300

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Answers

Answer:

3+105

Step-by-step explanation: Im so sorry if its wrong

Answer:

Simplified Expression: 3d + 105

Step-by-step explanation:

You have to distribute the number outside the parenthesis (3) to the number(s) inside the parenthesis (d + 35).

You can rewrite it like this: (3)(d) + (3)(35)

Please help me its the last question before i see my results im scared

Answers

Answer: 3

Step-by-step Explanation:

Answer:

3

Step-by-step explanation:

2*2=4

3*3=9

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16-9=7

7-4=3

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Answers

Answer:

80

Step-by-step explanation:

58+42=100

You need to get to 180

180-100=80

So answer 80

Answer:

80 degrees

Step-by-step explanation:

58+42= 100

total in a triangle is 180

180-100=80

80 degrees

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Answers

Answer:4:1  , 16:4 , 40:10

Step-by-step explanation:

HOpe it helps

Answer:

32 : 8

16 : 4

24 : 6

Are all equivalent to 8:2.

Hope this helps :)

-ilovejiminssi

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Answer:

2 triangle surfaces: 2.5 X 2 X 1.7 = 8.5 square meters

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18 X 3 = 54 square meters

54 + 8.5 = 62.5 square meters

62.5 square meters is the correct answer

Which is a correct representation of x + 5 using algebra tiles?
5 boxes contain x.
5 boxes contain plus signs.
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Answers

5 boxes containin x plz mark Brainly

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Answer:

460

Step-by-step explanation:

The first person is correct

Please Help Its Urgenttt!

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Answer:

C

Step-by-step explanation:

C is the answer because if u look at the number line it shows it

Jordan Michael runs a basketball camp. A group of randomly selected camp participants were asked to give their shirt size. The table below shows the results of the survey. There are 308 camp participants this year.

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Small 6

Medium 15

Large 23

Extra large 12

Double extra large 4

Based on the data, what is the most reasonable estimate for the number of this year's camp participants who will need a medium shirt?



Choose 1 answer:

(Choice A)

A 21

(Choice B)

B 31

(Choice C)

C 77

(Choice D)

D 118

Answers

Choice c 77 because I did the math please give me Brainlyest

Answer:

i agree with the other person it is c

Step-by-step explanation:

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Answer:

i think you use y=mx + b to find the answer but  im not 100% on it

Step-by-step explanation:

getting p . o1 . n t .    s

Answer:

0.6

Step-by-step explanation:

6 - 9      -3

-------- = ------- = 0.6

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Answers

Answer:   so, i only know number 6 which is human fertilization

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8. Matching chromosomes are called homologous pairs.

9. During prophase 1 of meiosis these pairs form a tetrad process called crossing over or recombination.

10. When homologous chromosomes exchange genes it's called synapsis.

11. 2 daughter cells are created at the end of meiosis 1 and 4 are created at the end of meiosis 11.  

12. During the meiosis chromosomes will split into daughter cells randomly making each gamete unique this is called Cytokinesis.

13. The process by which sperm is made is called Sertoli cells.

14. The process by which eggs are made is called oogenesis.

15. During the creation of an oocyte, 3 additional haploids are created that will not be fertilized these cells are called Polar bodies.

I really hope this helps.

Step-by-step explanation:

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Step-by-step explanation:

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what

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Answer:

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Step-by-step explanation:

I hope this helps yoy

M=-2 man I gotchu :)))

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Answer:hope this helps

Step-by-step explanation:

First you multiply the number of what you r multiply by if that makes sense then get the quotient of ur answer and multiply that if you a reminder if it is not a decimal add that to your mutilation

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The volume of the world's oceans is nearly 1.5 x 10^9 cubic kilometers. Write this number in scientific notation.

Answers

The volume of the world's ocean in scientific notation is 1.5 × 10⁹ cubic kilometres.

How to represent a number in scientific notation?

The volume of the world's ocean is 1.5 × 10⁹ cubic kilometres.

The volume of the ocean in scientific notation can be represented as follows:

1.5 × 10⁹ cubic km

The volume of the world ocean is 1500000000 cubic km.

But the volume of the world's ocean in scientific notation is 1.5 × 10⁹ cubic kilometres.

learn more on scientific notation here:https://brainly.com/question/17655409

#SPJ1

Answer:

1500000000 km^3

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Use the word MISSISSIPPI to match each ratio.

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4 11:1t he ratio of I's to M's
5 4:1 the ratio of S's to I's

Answers

Basically, them to the correct answer, comment if you have a question

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B: 4:2

C: 11:1

D: 2:11

E: 4:1

1:the ratio of S's to P's

2:the ratio of I's to M's

3:the ratio of S's to I's

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A rider sits on a motorcycle. The motorcycle has a mass of 237kg. The rider has a mass of 89kg. What is the total mass of the motorcycle and the rider?

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Answers

Just add. 237kg + 89kg = 326kg

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Answer:

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Step-by-step explanation:

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Answers

Answer:

Supplementary, 39+5x=180, x=28.2

Step-by-step explanation:

So we know that a straight line is 180 degrees, therefore 52+(5x-13) must equal 180. This is a supplementary relationship. That's our equation, now we just have to solve.

52+5x-13=180

We can straight away combine numbers, giving us

39+5x=180

Now we subtract 39 from both sides, giving us

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Now we will answer.

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I'm not sure if this is right, but this is my answer :)

180 minus 52=72. And then you divide 72 by 5

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Answers

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B) If the graph is not a vertical line, it is a function.
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Answers

the right answer is d

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Answers

Answer:

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Step-by-step explanation:

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