Answer:
x=2, y=1
Step-by-step explanation:
y=x-1
y=3-x
x-1=3-x
2x=4
x=2
Answer:
= 34% decrease
Step-by-step explanation:
Calculate percentage change from Vsub1 = 1450 to Vsub2 = 957
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What you want to know here is: what is 20 percent of 70?
you calculate it by multiplying 70 by 20 percent.
20 percent can be written as a fraction: 20 over 100:

which means that the multiplication will be:

=

=7*2=14
the correct answer is: there were 14 competitors in soccer among these players!
Answer:
answer is 2/3
Step-by-step explanation:
probability it is an eclair is 1/15=3/(3+2x+6+x)= 1/(x+3)
so x+3=15 and then x = 12
so the probability it is a humbug is (2*12+6)/(3*12+9) = 30/45 = 2/3