Hello!
We can solve this by using substitution
we can plug y = x - 1 into the other equation
So 2x - 3( x - 1) = -1
We can distribute the -3 to (x - 1)
2x - 3x + 3 = -1
Combine like terms
-x + 3 = -1
Subtract 3 from both sides
-x = -4
Since x is negative we can multiply both sides by -1
x = 4
We can plug x into the first equation
y = (4) - 1
y = 3
The answers are x = 4 and y = 3
Hope this helps!
Answer:
5
Step-by-step explanation:
All you have to do is add the numbers
1 + 8 + 4 + 7 + 7 + 6 + 7 + 0 = 40
Since there is 8 numbers, you divide 40 by 8.
40/8 = 5
The mean of the set of numbers is 5.
Maybe step 3 because you try to get rid of the x on both sides
2.5=2 dozen cookies
x=15 dozen cookies
2/5 / 2= 1.25 (unit rate)
15*1.25=18.75, or 18 and 3/4 cups of flour.
Hope I helped, and if I did feel free to vote brainliest!
The percentage of births that occurred among women between the ages of 40 and 42 is 26.41%
<h3>Calculations and Parameters</h3>
First, we would add up the ages of the mothers
27 +98+239+326+389+436+468+490+460+387+286+180+102+48+19+5+1
= 3961
Thus, to find the percentage of births occurring among women between the ages of 40 and 42 was:
102+48=150
3961/150= 26.41%
Read more about percentages here:
brainly.com/question/24304697
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