MATHEMATICS MIDDLE SCHOOL

Select all the equations that have x=20 as a solutionA)2x =40
B)2x =10
C)4x =5
D)4x =80

Answers

Answer 1
Answer: The correct answers are A. 2x= 40 and D. 4x= 80~

A. 2*20= 40
D. 4*20= 80

Hope this helps~
Answer 2
Answer: A and D

A) 2x = 40
2x / 2 = 40 / 2
x = 20

D) 4x = 80
4x / 4 = 80 / 4
x = 20

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What is 26 divided by 130

Answers

26:130=(26)/(130)=(26:13)/(130:13)=(2)/(10)=\boxed{0.2}=(2:2)/(10:2)=\boxed{(1)/(5)}

How do you solve x+2x=15 ; 5x=2y+3 using the substitution method?
please explain

Answers

    The subtitution method is where you fill in a number into the place of the variable, the check the problem to see if the number fits by solving it..
x+2x=15
    I don't see why someone would use the substitution method on this one. x+2x can be 3x because of how multiplication works like addition. Then you'd have 3x=15. You can then find the value of x by dividing each side by 3 so that the variable is alone. You'll have x=5
5x=2y+3
    If the equations are part of the same problem, then you'll have 25=2y+3.
You could also solve this normaly, but I'll use the method you want this time.
You could put a number like 6 in for y. Then solve. You'll have that 25=15. Meaning 6 is too small, so then you could use a number such as 12. Solve, and you'll get 25=27. The answer would be too large, but barely. You could move down one, to 11. you'll have 25=25, so eleven is correct. Sorry if I typed too much.
    If you wish to use the subtitution method, simply place a digit, that you think might fit, into the place where the variable is.


Write your answer in simplest form 5-2 4/5

Answers

2 1/5 because 5/1-14/5=11/5=2 1/5
5-2 = 3
3 ( 2, 5/5) - 4/5 = 2, 1/5
Glad to Help!

Name two quadrilaterals in which all the sides have an equal length

Answers

Square, Rhombus.

Their sides are equal! :D
simple the square and the rhombus are two quadrilaterals in which all the sides have an equal length

Which of the following facts would be sufficient toprove AACE - ABCD?
erior
180.
ABCD is a right triangle.
G AB = ED
Hm A = MZE
AE | BD
to​

Answers

Answer:

aace

Step-by-step explanation: 344-531=aace

Answer: aace

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ICE CREAM you are planning to make and sell ice creams at a schools sports event.

You expect to make and sell 300 ice creams

•You buy ice cream in 1 liter tubs. Each tub costs $2.
•you can fill ten cones from each tub.
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Answers

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