Answer:
x = 2
Step-by-step explanation:
Since the triangles are similar then corresponding sides are in proportion, that is
= 
, substitute values
= 
( cross- multiply )
7x² = 28 ( divide both sides by 7 )
x² = 4 ( take square root of both sides )
x = 
= 2
Answer:
7x^3+8
this is because 8 added=+8
and 7 and x cubed=7x^3
so
8+7x^3
hope this helps, if it does plz vot my answer the brainiest thanks!!
Answer:
Let x = # of commercials
y = # of movies
<u>System of Equations:</u>
x + y = 90
40x + 110y = 500
Step-by-step explanation:
We have to set our variables before we start solving. After setting the variables, we can set up the equations. If x = # of commercials and y = # of movies, then we can assume x + y = 90, as there have been a total of 90 commercials and movies played altogether. Then, we know that their worth is $500, so the price of all the commercials played and the price of all the movies played (which is 40x + 110y) sum to $500.
(I've just answered this question from your previous post. Unless my answer was wrong, I don't see why you would repost the exact same question.)
Each of the input changes is 1 unit.
Each of the output changes is 3 units, so the function is linear with a slope of 3.
The output is -2 when the input is 0, so the function is
.. y = 3x -2
Given :
A 18-mile taxi ride takes 21 minutes and costs $12.60.
To Find :
The cost of a 39- mile taxi ride. What unit price do you need.
Solution :
Unit price per mile :
Cost of 39 mile taxi ride :
Therefore, unit price is $27.3 and unit price is $0.7 / mile .
Hence, this is the required solution.
