Answer: 70%
Step-by-step explanation:
Total number of jersey = 50.
Total number of medium sized jersey = 35
The percent of the jerseys that are medium sized jerseys will be:
= Number of medium sized / Total number of jersey × 100
= 35 / 50 × 100
= 70%
Solve either equation for either variable. Since the second one has y on its own, the easiest choice is to solve that for y.
-5x + y = 13 ⇒ y = 5x + 13
Now substitute this into the other equation to eliminate y and rewrite it entirely in terms of x :
-3x + 3y = 3 ⇒ -3x + 3 (5x + 13) = 3
Simplify and solve for x :
-3x + 15x + 39 = 3
12x = -36
x = -3
Substitute this into either original equation to solve for y. Plugging x = -3 into the first equation would give
-3 (-3) + 3y = 3
9 + 3y = 3
3y = -6
y = -2
So the solution to the system of equations is (x, y) = (-3, -2).
Answer:
x = 10
Step-by-step explanation:
if there 2 same triangle then they are right triangle
By using Pythagorean theorem for 1 of right triangle, we have
= +
74 = 49 +
74 - 49 =
25 =
therefore, x = = = 10
Answer:the third one
Step-by-step explanation: