Answer:
yz=34
Step-by-step explanation:
have a nice day!!
Answer:
C.
Step-by-step explanation:
Answer:
21C
22D
23B
24C
25A
Step-by-step explanation:
Answer:
Mass of coffee A beans = 9 kg
Step-by-step explanation:
Coffee A = 3
Coffee B = 5
Coffee C = 7
A : B : C = 3 : 5 : 7
Total ratio = 15
Total mass of the bag = 45 kg
find the mass coffee beans A in the mixture?
Mass of coffee A beans = ratio of coffee A / total ratio × total mass of the bag
= 3/15 × 45
= 1/5 × 45
= (1 * 45)/5
= 45/5
= 9 kg
Mass of coffee A beans = 9 kg
Mass of coffee B beans = ratio of coffee B / total ratio × total mass of the bag
= 5/15 × 45
= 1/3 × 45
= 45/3
= 15 kg
Mass of coffee C beans = ratio of coffee C / total ratio × total mass of the bag
= 7/15 × 45
= (7*45)/15
= 315/15
= 21 kg
First, determine the area of the triangle. When all sides of the triangle are given, you can determine its area through the semi-perimeter. This is the half of a perimeter.
s = (30 + 25 + 40)/2
s = 47.5
Then, we apply the Heron's formula:
A = square root [s(s-a)(s-b)(s-c)], where a, b and c are side lengths of the triangle
A = square root [47.5(47.5-30)(47.5-25)(47.5-40)]
A = 374.53 sq feet
To find the number of cows, divide the area by 50:
Number of cows = 373.53 ft2 / 50 ft2 per cow
Number of cows = 7.4906
The estimated number of cow is 7.