Answer:
Jay is 18
Step-by-step explanation:
Because if Nadia is 6 and Jay is 3 times her age, then he would be 18.
Also, you add 10 to both of their ages, there is an age gap of 12 years.
Answer:
You can substitute the x value of coordinate (x,y) in the equation. If the outcome = the y value in the coordinate (x,y), then you have determined it to be on the system of linear equations.
Step-by-step explanation:
Point P has a coordinates: ( Px , Py ).
You can choose which value is easy to substitute. Eighter start with the Py or you could start with the Px. It could save you time if you pick the right one for the job.
If you want to verify if any point is valid in any (linear) equation(s), you can:
a) substitute the x value of coordinate (x,y) in the equation, and if the outcome has the same value as y in the coordinate (x,y), then that point is a valid solution of the (linear) equation.
b) substitute the y value of coordinate (x,y) in the equation, and if the outcome has the same value as x in the coordinate (x,y), then that point is a valid solution of the (linear) equation.
Answer:
x = 10.0
Step-by-step explanation:
Using the geometric mean formula:
x projection
----------------- = ---------------
entire base x
Here, the projection is 5 and the entire base is (20 + 5). So:
x 5
------------ = ------------
25 x
Cross multiply:
x² = 25 (5)
x² = 100
√x² = √100
x = 10
Answer:
48
Step-by-step explanation:
if 5 students out of 60 choose enchiladas we can calculate the percentage of students who chose enchiladas. We get 8.33% So in order to find the no. of Students who would choose enchiladas out of 576 students, we simply have to multiply 8.33% with 576. we would get 47.98. As people's no. cannot be in decimal we have to change it to whole number which is 48 out of 576.