Answer:
2.4 or 2 2/5
Step-by-step explanation:
Answer: x=2 and y=−1
Step-by-step explanation:
5x+7y=3for x:
5x+7y=3
5x+7y+−7y=3+−7y(Add -7y to both sides)
5x=−7y+3
x=
−7/
5
y+
3
/5
Substitute
−7
/5
y+
3
/5 for x in2x+3y=1:
2(
−7/
5
y+
3
/5
)+3y=1
1
/5
y+
6
/5
=1(Simplify both sides of the equation)
1
/5
y=
−1
/5
y=1
Substitute −1 for y in x
−7
/5
y+
3
/5
:
x=
x=2
x=2(Simplify both sides of the equation)
Answer:
See explanation below.
Step-by-step explanation:
Let's assume that we have an original function
and let's suppose that we have a constant
and if we define this new function:

We see that if c>1 the dunction would be vertically stretched by c units.
And if
we see that we will have a vertically shrinking by a factor of c units
So for example we can use the following function:

For this case our constant is c=0.75 and we can define the new function like this:

We will see if we plot the two figures that we have a vertical shrinking of 0.75 units.
Answer:
40 Laps per Hour
Step-by-step explanation:
45 * 5 * 12 = 2700
2700/60 = 45
1800/45 = 40