Answer:
C
Step-by-step explanation:
This question asks us to find the difference in output or y values or consecutive x-values (values 1 unit away from each other). This is just a rate of change or slope. We will use the slope formula:
Slope:
We substitute and
Answer C.
value of x is and value of y is
Step-by-step explanation:
We need to solve the system of equations by elimination
Solving the systems:
Rearranging equation(1)
Multiply equation(1) with 5 and add with equation 2
So, value of x is
Now finding value of y
Multiply eq(1) with 3 and eq(2) with 5 and add both equations
So, value of y is
Keywords: System of Equations
Learn more about System of Equations at:
#learnwithBrainly
Answer:
1
Step-by-step explanation:
All the numbers provided can have a factor of 1.
eg.)
1*24=24
1*14=14
1*21=21
This is because there is only one factor they all commonly share, 1.
Let
x--------> Peter's drive speed on the highway in mph
y--------> Peter's drive speed on country roads in mph
we know that
x=25+y-------> equation 1
70/y=120/x------> 70*x=120*y-----> x=120*y/70------> equation 2
remember that
time=distance/speed
equate equation 1 and equation 2
25+y=120*y/70-----> multiply by 70 both sides
70*[25+y]=120*y-----> 1,750+70*y=120*y-----> 50*y=1,750------> y=35 mph
x=25+35------> x=60 mph
the answer is
Peter's drive speed on the highway is 60 mph
Peter's drive speed on country roads is 35 mph
Answer:
13
Step-by-step explanation:
5+3+5=13