Answer:
A rational number is a number that can be express as the ratio of two integers.
Step-by-step explanation:
A number that cannot be expressed that way is irrational. For example, one third in decimal form is 0.33333333333333 (the threes go on forever).
The expression x=20-3D will present the amount Amy has left after buying D sodas.
Step-by-step explanation:
Given,
Total amount = 20 quarters
Cost of sodas = $0.75 = 0.75*100 = 75 cents
25 cents = 1 quarter
1 cent = 
75 cents = 
= 3 quarters
Amount of D sodas = 3D
Let x be the amount left with Amy.
Amount left = total amount - Amount of D sodas
The expression x=20-3D will present the amount Amy has left after buying D sodas.
Keywords: fractions, subtraction
Learn more about subtraction at:
#LearnwithBrainly
Answer:
She has $37 out of $50, which can be written as a fraction, 37/50.
In order to be written as a decimal, then we need something like 1/10, which is 0.1, or 5/100, which is .05.
So, 37/50 = ?/100
The easiest way for me to do this problem is to look at our denominators. 50 x 2 = 100, right? This means we need to multiply 37 x 2 to get the missing numerator. 37 x 2 = 74.
Now, how do we write 74/100 as a decimal? .74
B. a = 2.37
Hope it helps!
Answer:
circle P has a circumference of 800mm which is equal to 80cm
circle Q is 200cm
circle R is 4m which is equal to 400cm
You will get the sum of the distances by placing the figures under one measurement that is meters
And so add the figures in cm(200+400+80) and get 680
Then convert this to meters and get 6.8m
Hence your answer is C
