Answer: the answer is 36
Step-by-step explanation:
we can solve this using an algebra equation
so first from the world problem, we can tell that mother and daughter's ages added together is 45 we can represent this by saying x (mother's age), plus y (daughter's age) is 45.
(x+y)=45
Then we from the problem we know that 5 years ago the product of their ages is four times the mother's age at that time. From this, we can write
(x-5)*(y-5)=4*(x-5)
Then we just subtract the common denominators which is (x-5) so then the equation becomes
(y-5)=4
add 5 to both sides
y=9
Then all we do is plug the answer for y into the very first equation
x+9=45
Subtract both sides by 9
x=36
To double-check let's put the answers in the second equation
(36-5)*(9-5)=4*(x-5)
we get
(31)*(4)=4*(31)
so it's right I think
Answer:
The trend line for scatterplot A will have a negative slope, and the trend line for scatterplot B will have a positive slope.
Step-by-step explanation:
The data in scatterplot A has a general decreasing trend. This is because as x increases, the values of y tend to decrease. This means the trend line will have a negative slope.
The data in scatterplot B has a general increasing trend. This is because as x increases, the values of y tend to increase. This means the trend line will have a positive slope.
Since 111 is greater than 33, I will assume that you meant 11 votes for a candidate. Also, assuming that each student can vote only once, the answer would be
11/33 x 100=33.333333...
About 33.333 of the voters voted for candidate a.
Answer:
9x-7
Step-by-step explanation:
AB =3x-2
BC= 6x-5
AC=AB+AC
AC=(3X-2)+(6X-5)
AC=3X-2+6X-5
AC=3X+6X-2-5
AC=9X-7
