Answer:
It will take a total of 2.73 hours if they worked together
Step-by-step explanation:
Here, we are seeking to calculate the joint rate.
Let the amount of work to be done is say x
Seth’s rate will be x/6 , while violet’s rate will be x/5
Their joint rate will be ;
x/6 + x/5 = 11x/30
The time it will take them to build the house together will be equal to the amount of work divided by the joint rate.
That will be x divided by 11x/30
= x * 30/11x
= 30/11 hours which is Approximately 2.73 hours
Answer:
The constant of variation is 5
Step-by-step explanation:
We know direct variation is of the form
y = kx
We know y =25 and x=5
25 = k*5
Divide each side by 5
25/5 = 5k/5
5 = k
Answer:
a. √9
Step-by-step explanation:
a. √9 = 3
b.√15 = sqrt(5*3) cannot be simplified
c. √18 = sqrt(9) sqrt(2) = 3 sqrt(2) cannot be simplified farther
d. √20= sqrt(4) sqrt(5) = 2 sqrt(5) cannot be simplified farther
a is the only answer that is a rational number
7^2 = 6^2 + 9^2 - 2(6)(9)cos(m)
-68 = 2(6)(9)cos(m)
cos(m) = -0.6296
m = arcos ( -0.6296)
m = 129.0 degrees
Hello
Answer:
The correct answer is B
Step-by-step explanation:
You just use the Distribuatd property to solve
You multiply 10 to all the varibles inside the parthense
Becasued y is equal to 7 you would do 10x7=70
then 10x8=80
and 70+80=150
and the answer says the primeter is 150 when y=7
Hope this helps
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