Answer:
B
Step-by-step explanation:
The number is between 10 and 49
The number is divisible by 3
Let the 10s digit = x
Let the units digit = y
1/3 * (10x + y) = x + y multiply both sides by 3
10x + y = 3(x +y) remove the brackets.
10x +y = 3x + 3y Subtract 3x from both sides
10x - 3x + y = 3y Combine\
7x + y = 3y Subtract y from both sides.
7x = 3y - y Combine
7x = 2y
x can't be very big. Even taking 1/3 will get out of range is you use 6.
Also x should be an even number. The units digit cannot have a fraction in it.
Try making x = 2
7*2 = 2*y
14 = 2y Divide by 2
14/2 = y
y = 7
So the number is possibly 27. Let's check it out.
- The number is between and includes 10 and 49. 27 is between these two endpoints.
- 27 is divisible by 3
- 1/3(27) = sum of digits
- 9 = (2 + 7)
All of the conditions are met. It's B
13.5 = 30% of 45
4.5 = 15% of 30
4.6 = 23% of 20
4.2 = 60% of 7
Hope this helps!!
I am currently doing this right now, make them equal each other, then follow what i do:
The answer would be 0.7 since we can say that 3/5 of 100 makes 60 while 0.7 is 70 which means that 0.7 has more.
Answer:
The answer is 2/3
Step-by-step explanation:
Let's solve your equation step-by-step.
2/
3(x)=4/9
Step 1: Multiply both sides by 3/2.
(
3/2)*(2/3*x)=(3/2)*(4/9)
so this means the answer is 2/3
