Answer:
Distribute -1/2 over (x - 4)
Divide both sides of the equation by -2
Answer:
The mechanic who worked 5 hours charged $115 per hour, the one who worked 15 hours charged $120 per hour.
Step-by-step explanation:
x = rate of mechanic who worked 5 hours
y = rate of mechanic who worked 15 hours
Then
x + y = 235
5x + 15y = 2375
Just solve these 2 equations above for x and y.
x + y = 235 ⇒ x = 235 - y
Substitute into second equation to find y.
5(235 - y) + 15y = 2375
1175 - 5y + 15y = 2375
10y = 1200
y = 1200/10 = 120
x = 235 - y = 235 - 120 = 115
Answer:
Total Area: 60
Step-by-step explanation:
The area of the rectangle is the easiest to find. Just multiply 12x4.
12x4=48
For the triangle. You can subtract 4 from the height of 10ft.
The height of the triangle is now 6ft.
To calculate the area of a triangle, multiply the height by the base (this is also known as the 'width') then divide by 2.
Btw the image was really small. Kind of hard to see the numbers.
Answer:
S = 3.500t
11 weeks, because in 11 weeks he will have saved up 38.500, + the 5 he has saved equals 43.500.
Step-by-step explanation:
Answer:
560 students
Step-by-step explanation:
6/10 so what i'd do is 1400 ÷ 10 = 140
now you wanna find out the kids that don't like science which was 4/10
so you do 4 × 140 = 560
