Answer:9
Step-by-step explanation:
First, the equation for this:
50 + 3x = 250
Now, to isolate variable, -50 on both sides.
50-50 = 0. 250-50 = 200.
3x = 250.
250/3 = 83.3333....
So, round it up. And you get 84 sales
3/4 Of a 40$ restaurant bill is 30$
Mary used 8 apples!!
24 divided into 6 is 4, then you times that by 2
We get the age of Jack is 29 years and the age of Jill is 16 years.
We are given that the sum of Jack's age and Jill's age is 45 years.
Let Jack's age be x.
Let Jill's age be y.
x + y = 45
x = 45 - y
Now, we are also given that jack's age next year will be twice Jill's age last year.
Jack's age next year = x + 1
Jill's age last year = y - 1
ATQ, We get the equation as:
x + 1 = 2( y - 1)
x + 1 = 2 y - 2
x = 2 y - 2 - 1
x = 2 y - 3
We get that:
45 - y = 2 y - 3
2 y + y = 45 + 3
3 y = 48
y = 48 / 3
y = 16 years.
x + y = 45
x + 16 = 45
x = 45 - 16
x = 29 years.
Therefore, we get the age of Jack is 29 years and the age of Jill is 16 years.
Learn more about equation here:
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