The answer is :
( y^2 +7 )^2
It is given in the question that Driving at a constant speed, Reggie travels 300 kilometers in 1 hour.
So here distance is 300 kilometers and time is 1 hour .
The formula of speed is
Substituting the given values of distance and time, we will get
So when distance is 300 km and time is 1 hour, so speed is 300 km/hour and that's the answer .
Answer: 300 kilometers per hour
Step-by-step explanation:
Given : Driving at a constant speed, Reggie travels 300 kilometers in 1 hour.
Now, the formula to find speed is given by:-
i.e. Reggie’s speed in kilometers per hour =
i.e. Reggie’s speed in kilometers per hour =
Hence, Reggie’s speed is 300 kilometers per hour.
Answer:
To make it simpler than the answer on top of this one the ANSWER IS B
Step-by-step explanation:
C = child’s dosage in milligrams
a = age of the child
A = adult dosage in milligrams
Answer:
Step-by-step explanation:
The given expression is
Where , because according to the problem, the child is 6 years old.
Replacing and solving, we have
Therefore, if the adult dosage is 180 milligrams, and the child is 6 years old, the right dosage is 60 milligrams.
Answer: C=222 and A =120
Step-by-step explanation:
Let C be the number of children tickets and A be the number of adult tickets.
Then, According to the question, we have the following system:-
Multiply equation (1) by 5 on both sides ,we get
Eliminate equation (3) from equation (2), we get
Substitute the value of A in (1), we get
Hence, the number of children tickets sold = 222 and the number of adult tickets sold =120
Answer:
The answer is A: a=-5
Step-by-step explanation:
took the test
12 and 18
10 and 20
8 and 14
Answer:
Find out the numbers .
To prove
Let us assume that one number be x.
Let us assume that second number be y.
As given
The sum of two numbers is 30.
Than the equation becomes
x + y = 30
Their difference is 6.
x - y = 6
Thus two equation are .
x + y = 30 and x - y = 6
Subtracted x - y = 6 from x + y = 30
x - x + y - (-y) = 30 - 6
y + y = 24
2y = 24
y = 12
Put in the x - y = 6
x - 12 = 6
x = 6 + 12
x = 18
Therefore the two numbers are 12 and 18 .