Answer:
12
Step-by-step explanation:
3 ÷ 1/4
Copy dot flip
Keep the first number, change the divide to multiply and take the reciprocal of the 2nd number
3 * 4/1
12
Answer:
18x+5
Step-by-step explanation:
Rhe perimeter of a triangle is the sum of its three sides which here are (6x-3), (5x+6), (7x+2).
So we add them all up, 6x-3+5x+6+7x+2=18x+5
Answer:
D. 30
Step-by-step explanation:
-5(-8)(3)(-1) /(-4)
Lets simplify the numerator first
-5*-8 = 40
40 *3 = 120
120*-1 = -120
Replace -5(-8)(3)(-1) with -120
-120/-4
A negative divided by a negative is a positive
30
Given:
Tom's earnings: x
Jan's earnings: 2x - 150
Total earnings: 1380
x + 2x - 150 = 1380
3x = 1380 + 150
3x = 1530
3x/3 = 1530/3
x = 510
Tom's earnings: x = 510
Jan's earnings: 2x - 150 = 2(510) - 150 = 1,020 - 150 = 870
total earnings: 1,380
510 + 870 = 1,380
1,380 = 1,380
The answer is C. 89 in^2
This is found by (1/2(

))+70
r in this equation stands for radius which is half the diameter. Sice the diameter equals 7, the radius equals 3.5
You have to solve this by putting it into a calculator since you can't really solve for an equation with pi in it otherwise.
Hope this helps!