Answer: x=7
Step-by-step explanation:
Replace x with 3 and solve for y to equal 12:
y = 4(3) = 12
the answer is y = 4x
Answer:
28 and 7
35
Step-by-step explanation:
The area of a triangle is base*height/2, no matter the shape.
So the big one is 8*7/2 = 28 in²
And the little one is 2*7/2 = 7 in²
The total trapezoid therefore has an area of 28+7=35 in²
Answer:

Step-by-step explanation:
Assuming this is a right triangle.
<u>Trigonometric ratios</u>

where:
is the angle- O is the side opposite the angle
- A is the side adjacent the angle
- H is the hypotenuse
Given:
= 35°- O = x
- A = 26



Therefore, x = 18.21 (nearest hundredth)
The mean is the average of the numbers: a calculated "central" value of a set of numbers.
Therefore: If the amount spent on books per month by all her classmates is leveled that amount would be $30
To calculate it: add up all the numbers, then divide by how many numbers there are