47.60 + 0.20(47.60) = 47.60 + 9.52 = 57.12
OR
47.60(1.20) = 57.12
Answer:
B = 65
C = 115
Step-by-step explanation:
Givens
ABCD is a parallelogram
It is lettered in such a way that B is opposite D
B = 3n+20
D = 6n-25
Solution
<B = <D Property of Parallelogram
3n + 20 = 6n - 25 Add 25 to both sides
3n + 20 + 25 = 6n Combine
3n +45 = 6n Subtract 3n from both sides
3n +45 = 6n-3n Combine
45 = 3n Divide by 3
45/3=3n/3
n = 15 Value of n
B = 3n + 20 Find B. Let n = 15
B= 3*15+20 Combine
B = 45 + 20 Combine
B = 65
==================
B and C are supplementary. They add up to 180
B + C = 180
65 + C = 180
C = 180-65
C = 115
You simply have to add the two numbers together, however, you have to convert everything into inches only. You know that there are 12 inches in one foot. To calculate the length of the longer slide, it is simply doing 12 feet TIMES 12 (since there are 12 inches in one foot). This makes 144 inches. Add 1/2 feet in there, this is adding 1/2 of 12 inches, which is 12/2=6 inches. The long slide is therefore 144+6= 150 inches. Now you want to convert 3 feet and 7 inches into inches only. 3 feet TIMES 12 = 3x12=36 inches. Add 7 inches to this, and you will get 36+7=43 inches. To know how long the small slide is, subtract 43 inches from 150 inches, and this will give you 150-43=107 inches. So, the small slide is 107 inches. :)
2(3x) and 2(-9)
so 2*3x equals 6x and 2*-9 equals -18
6x-18
Answer:
1. 84 in
2. 300 ft
3. 2500 cm
4. 5000 m
5. 6 lbs
6. 10560.03937 ft
7. 3520.0131234 yd
8. 4.375 c
9. 1.5 L
10. 6000 mg
11. 48
12. 80000 lbs
13. 1.5 m
14. 1500 mm
15. Dan's phone is 157 millimeters long. How many inches is this? 5
Step-by-step explanation:
