x + y = 9 equation 1<span> the sum of the digits of a two-digit number is 9
</span>the number formed by interchanging the digits is 27 less than the original number<span>
we are looking at the number xy,
10x+y for x is a tens digit.
10y + x = 10x + y + 27
simplify it,
9y = 9x + 27 divide by 9
</span>x + y = 9 equation 1
y= x + 3 equation 2
by subtitution we put y in equation 1
x + (x+3) = 9
2x = 6
x= 6/2= 3
y = x+3=3+3=6
Answer:
5 cans
Step-by-step explanation:
$2/1 can = $10/x cans
x = 5
4)
(1/6)÷2
(1/12)
5)
(1/3)÷4
(1/12)
6)
(1/4)÷2
(1/8)
A simple way to solve fraction divided by while number problems is to multiply the denominator and the whole number together, but that only works if the numerator is 1, which in this case, they were all in fact, 1s.
After 2 weeks Ramona will have twice as much as Claire.
work
claire 8$
8*2=16
12*2=24
