MATHEMATICS MIDDLE SCHOOL

there are 3 red marbles in a bag and there are 4 blue marbles in the bag which of the following is a possible total number of marbles?

Answers

Answer 1
Answer: 3+4 is 7. That means any multiplies of 7 can be a possible total number of marble. For example, 14 is a multiple of 7 and can also be a possible number; 3*2=6, 4*2=8, 6+8=14!
Hope that helps!!!

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Which expressions are equivalent to -3-(7.5+4)

Answers

-3-(7.5+4)
PEMDAS
P for Parenthesis
E for Exponents
M/D for Multiplication/Division
A/S for Addition/Subtraction
We should first clear the ones in parenthesis: (Oder Of Operations)
= -3-(11.5)
= -3-11.5
= -14.5
Basically -3-(11.5)

The odds of winning a contest are 1:50. what is the probability of winning the contest?

Answers

1 out of 50.... u answer is in the question by the way

Write an inequality for each situation. Use x for the variable.1. Noah has fewer than 8 tennis balls.
2. Mariposa read at least 45 pages of the book.
3. Jaxon read no more than 38 miles.
4. Kira spent more than $85.

Answers

1. x<8
2. x≥45
3. x≤38
4. x>85

Are z³ and 3z equivelent?explain​

Answers

Yes because you are multiplying 3 z’s and also 3z’s

If i travel 100 miles in 4 hours what is that unit rate

Answers

To find a unit rate you need to divide. We will divide 100 miles by 4 hours. What ever the answer is it will be your unit rate.

100 ÷ 4 = 25

CHECK OUR WORK:-

25 × 4 = 100

We were RIGHT!!!!!

So, 25 miles per hour.

Hope I helped ya!!
100 miles in 4 hours. The unit rate would be 25 miles per hour.

100miles / 4hrs = 25 miles per hour

Therefore, for every hour you travel, you will gain 25 miles. Or for every 25 miles you travel, you've spent 1 hour traveling it.

y = 25x
where y is the total miles traveled, 25 is the constant unit rate, and x is the number of hours traveled.

for example: you traveled for 8 hours and you want to know how long you've traveled while maintaining the rate of 25mph. Just use the formula

 y = 25x
y = 25(8)
y = 200 miles.  you have traveled 200 miles in 8 hours.

One radian is the exact same measure for all circles?
true or false

Answers

The answer is True.

One radian is the central angle that subtends an arc length of one radius (s = r). Since all circles are similar, one radian is the same value for all circles. The arc measure of the central angle of an entire circle is 360º and the radian measure of the central angle of an entire circle = 2π.
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