MATHEMATICS MIDDLE SCHOOL

Mariel wrote these checks from her checking account: $10, $10, $31, and $10. Which number shows the change in the balance of her checking account?a: $ -61
b: $ -1
c: $ 1
d: $ 61

Answers

Answer 1
Answer: A:$-61 is the correct answer
Answer 2
Answer: I would say A, if Mariel is writing the checks, doesn't this mean that she is taking money away from her accounts? A: $ -61

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Which is bigger, 70% of 200 or 3/4 of 160
The diagram below shows the contents of a jar from which you select marbles at random.a. What is the probability of selecting a red marble, replacing it, and then selecting a blue marble? Show your work. b. What is the probability of selecting a red marble, setting it aside, and then selecting a blue marble? Show your work. c. Are the answers to parts (a) and (b) the same? Why or why not?
16% of 95 is what number?
Enter the value of n so that the expression (ny + 25.7) + (–45.2y + 13.9) is equivalent to (–33.7y + 39.6).
marvin has a chain that is 3 5/12 feet long . he uses 2 1/3 feet of the chain , how much chain is left

Which pair of ratios is proportional? A. 5:7 and 25:35 B. 6:9 and 18:36 C. 9:18 and 16:36 D. 35:120 and 75:250

Answers

one way is to make into fracitons and simplify

A.5/7=25/35?
yes, true

B. 6/9=18/36?
no

C. 9/18=16/36?
no

D. 35/120=75/250?
no


another way is
if a/b=c/d, then (ad)/(bc)=1 or ad=bc


A is answer

-3(x - 1) 7x=27 You have to Distribute it to get the answer​

Answers

First you would distribute the -3

-3x+1+7x=27

Combine like terms

4x+1= 27

Minus 1 on both sides

4x= 26

Divide by 4

X= 6.5

One side of a triangle is 3 1/3 cm, another side is 2/3 cm shorter than the first side, and the third side is 1 2/3 cm longer than the first side. What is the perimeter of the triangle?Thanks so much

Answers

Good evening ,

_______

Answer:

perimeter = 22/3 cm

____________________

Step-by-step explanation:

Look at the photo below for the details.

:)
3 1/3 - 2/3 = 2 2/3
3 1/3+ 1 2/3 = 5
3 1/3 + 5 + 2 2/3 = 11

Solve the system if equations by substitution

Y=3x-13
3x+2y=19

Answers

\left \{ {{y=3x-13} \atop {3x+2y=19}} \right. \n\nSubstitution\n\n3x+2(3x-13)=19\n\n3x+6x-26=19\n\n9x-26=19\ \ \ |add\ 26\n\n9x=45\ \ \ | divide\ by\ 9\n\nx=5\ny=3x-13=3*5-13=15-13=2\n\n\nx=5\ny=2

The solution to the system of equations is x = 5 and y = 2.

Given that:

The system of equations:

y = 3x - 13                                   (1)

3x + 2y = 19                                 (2)

Step 1: Solve equation (1) for Y:

y = 3x - 13

Step 2: Substitute y from equation (1) into equation (2):

3x + 2(3x - 13) = 19

Step 3: Simplify the equation and solve for x:

3x + 6x - 26 = 19

9x - 26 = 19

9x = 19 + 26

9x = 45

x = 45/9

x = 5

Step 4: Substitute x = 5 into equation (1) to find Y:

y = 3(5) - 13

y = 15 - 13

y = 2

So, the values of x and y are 5 and 2, respectively.

Learn more about Equation here:

brainly.com/question/29657992

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Why is 1/7 greater than 1/10

Answers

when you time 1/7 with 10 to top and bottom you will get 10/70 and when you time 1/10 by 7 to top and bottom you will get 7/70. so the top number of 1/7 is greater than the top number of 1/10.

The coordinates of points A and L are -4 and 8, respectively. What is the coordinate of the midpoint between them? A. 4 B. 6 C. 2 D. 0

Answers

Let c be the midpoint of a and b, then c=\frac{a+b}2.

hence here the midpoint is \frac{-4+8}2=\frac{4}2=\boxed{2}
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