MATHEMATICS MIDDLE SCHOOL

Need help on question 10
please help
need help on question 10 please help - 1

Answers

Answer 1
Answer: It has to be a parallelogram. And if you cut it just right then it can be a rectangle and it can be a square. This is a fun problem to work with at home. Make rectangular prisms of cake. Then cut each one at different angles. See what shapes of cuts you get. And then eat the pieces.

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You buy a sandwich for $2.95, an apple for $.45, and a bottle of juice for $1.05. What is the total cost?

Answers

The total is going to be $4.45 because 2.95 plus 0.45 plus 1.05 equals 4.45. I hope this helped.
2.95
+
1.05
___
$4.00 + $.45
=$4.45

Which is greater -4 4/25 or 4.12?

Answers

the answer would be 4.12 because the other one is a negative
4.12 because it is a positive number. If both are negative then it would be the first one. 

A tire company wants to know how quickly the tread on its tires wears down with average use. Have x represent the number of months the tire was used and have y represent the thickness of the tire tread, in millimeters. The equation for the line of best fit is:y = -3/7x +20

1. What is the slope of the line? *
3/7
-3/7
20
-20

What does the slope represent for the tire company? *
The decrease of time (in months) the tires were used.
The increase of time (in months) the tires were used.
The tire tread decreases by this much each month.
The tire tread increases by this much each month.

2. What is the y-intercept of the line? *
3/7
-3/7
20
-20

What does the y-intercept represent for the tire company? *
How thick the tires were when they started.
The number of months they measured the tire tread.
The increase in tire tread.
The decrease in tire tread.

Answers

1) m=-3/7 in y=-3/7x+20

2) not sure

3)b=20 in y=-3/7x+20
1) y=mx+b
m=slope
m=-3/7 in y=-3/7x+20

2) Since the slope is negative it is decreasing, as seen on a graph. So, the tire tread would be decreasing by the month (x).

3) y=mx+b
b=y-intercept
b=20 in y=-3/7x+20

A number is 6 greater than 1\2 another number. If the sum of the numbers is 21,find the numbers.

Answers

Let 1 number equal x
Let the other number equal 1/2x + 6

x + (1/2x + 6) =21
1 & 1/2 x + 6 =21
1 & 1/2 x =15

Jay and Blair went fishing together they caught 27 fish. Jay caught 2 times as many fish as Blair. How many fish did Jay and Blair each catch? write an equation and solve. Explain your work

Answers

Blair caught 9 fish, and Jay caught 18 fish out of 27 fish. By using the two equations.

Let's assume the number of fish Blair caught is represented by the variable "B". Since Jay caught 2 times as many fish as Blair, the number of fish Jay caught can be represented by the variable "J" as 2B.

According to the given information, Jay and Blair caught a total of 27 fish. We can write this as an equation:

B + J = 27

Substituting the values for J and B in terms of each other:

B + 2B = 27

Combining like terms:

3B = 27

Now, we can solve the equation for B by dividing both sides by 3:

B = 27 / 3

B = 9

So, Blair caught 9 fish.

To find the number of fish Jay caught, we substitute the value of B back into the equation:

J = 2B

J = 2(9)

J = 18

Therefore, Jay caught 18 fish. In conclusion, Blair caught 9 fish, and Jay caught 18 fish.

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the answer is 18 because 27 minus 18 is 9 and 9 is 2x less

Which pairs of numbers are relatively prime? Select all that apply.12 and 25
12 and 27
14 and 21
15 and 32

Answers

it is 1`2.25 and 15.32
12 and 25
Is the only one I know
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