The student that did more maths problems per minute is Diedra.
In order to determine which student did more maths problems per minute, the rate of each student has to be determined. Rate is the total questions solved divided by the time.
Rate = total questions / total time
Malcolm = 15 / 18 = 0.833 problems per minute
Diedra = 16/ 17 = 0.941 problems per minute
To learn more about rate, please check: brainly.com/question/9834403
Answer:
7 out of 9
Step-by-step explanation:
this because 2 out of 9 tells us there are 9 marbles.Since the number of yellow ones is 2 the the probability of non- yellow ones is (4+3)÷9
Answer:
14x²(2x³ + 1)
Step-by-step explanation:
Split the value: 28x⁵
28x⁵ = 28x³x²
14x² + 28x³x²
28 = 14 × 2
14x² + 14 · 2x³x²
Factor:
14x²(2x³ + 1)
No homo
Answer:
required expression = 11x-5
Step-by-step explanation:
We have information about the following things :
- Its a two digit number
- Units digit is 5 less than the tens digit
- tens digit is x
Since units digit is 5 less than the tens digit, then the unit digit will become
x-5
Now we have these two things:
- Tens digit is x
- Units digit is x-5
Now let us look at some two digit numbers like 29 , 43 and 78
in 29, tens digit is 2 and units digit is 9
29 is formed by multiplying the tens digit by 10 and multiplying the units digit by 1 like this : 29 = (2×10) + (9×1)
Similarly;
43 = (4×10) + (3×1)
78 = (7×10)+(8×1)
Now to get out two digit number from the question, we similarly need to multiply the tens digit with 10 and units digit with 1 and add them like this:
tens digit : x
Units digit : x-5
Hence the number is (x × 10) + [(x-5)×1] = 10x + x-5 = 11x-5
hence the required algebraic expression is 11x-5
(2,0,-1,-1,-2) that is the domain from what I remember. Hope that help