Answer:
28/21
Step-by-step explanation:
tan= opposite/adjacent
Answer:
- 4 bread loafs, 1 pound of meat, 3 pounds of cheese
Step-by-step explanation:
Let loaf of bread be b, meat be m and cheese be c
<u>Based on the given, we have following equations:</u>
- b + m + c = 8
- c = 3m
- b + 4m + 3c = 17
<u>Subtract the first equation from the third and substitute c with m:</u>
- b + 4m + 3c - (b + m + c) = 17 - 8
- 3m + 2c = 9
- 3m + 2(3m) = 9
- 9m = 9
- m = 1
<u>Then</u>
- c = 3*1 = 3
- b = 8 - (1 + 3) = 4
Answer:
the value of line ST is 6 centimeters long
Step-by-step explanation:
The attached image in conjunction with the question is shown in the file below.
We can see from the RT segment that the equation given can be expressed as:

so; if we solve for x ; we have ;

divide both sides by 5 ; we have:


However ; the value of ST is represent by the information:

replcaing the value for x; we have :


Thus, the value of line ST is 6 centimeters long
Answer:
1/12
Step-by-step explanation:
The probability that Helen will roll a 4 is 1/6 the probability that she will get tails is 1/2. Multiply those two events together to find the probability of P(A and B)
Answer:
Let x= liters of 18% solution to be added to a 10% solution.
20-x= liters of 10% solution to be mixed with 18% solution.
..
18%(x)+10%(20-x)=15%(20)
.18x+2-.1x=3
..08x=1
x=1/.08=12.5
ans:
12.5 liters of an 18% alcohol solution must be added to a 10% alcohol solution to get 20 L of a 15% acohol solution.
I hope it's helpful!