Answer:
4. 2(3k+4y-14).
5. 76+34.9.
6.10t-8
Step-by-step explanation:
4.since it's 6k+8y-14 all of the numbers can be divided by 2 then the you just put a 2 in front of everything and then(3k+4y-14).
5. (22+11.5x)+(54+23.4x).
=(22+54)+(11.5x+23.4x).
=76+34.9x.
=34.9x+76.
6.(9t-3)+(-5+t).
=(9t+t)+(-3-5).
=10t-8.
Answer:
It is 7
Step-by-step explanation:
y = mx+b
y is the total cost.
x is the number of hours.
b : that's 16 dollars.
y = 9x+16
The problem states that the cost was 79 dollars.
Substitute that for y and solve for x.
79 = 9x+16
63 = 9x
x = 7 hours
Answer:

Step-by-step explanation:
we know that
The total area of the figure is equal to the area of the square plus the area of the triangle
step 1
Find the area of triangle
The area of triangle is equal to

where
b is the base of triangle (is the same that the length side of the square)
h is the height of triangle
we have

Applying the Pythagorean Theorem
Find the length side b




Area of triangle

step 2
Find the area of the square
The area of the square is

we have

substitute

step 3
Find the total area of the figure
Adds the areas

Answer:
131
Step-by-step explanation: