Answer:
x-2y = 6
x=6+2y....,.........1
Зх — бу = 18.............2
putting the value of x in ..2
3(6+2y)-6y=18
18+6y-6y=18
0=o
Answer:
y= 3x + 19, x E R
Step-by-step explanation:
y - 7 = 3 (x + 4)
(distribute the 3 through the parentheses)
y= 3x + 12 + 7
(add the numbers)
y = 3x + 19
(write the solution/answer Y in parametric form)
y = 3x + 19, x E R
<h2>
Hello!</h2>
The answer is:
She still needs to ride
<h2>
Why?</h2>
From the statement, we know that Nance's friend is 4 1/2 miles away and she only has ridden 2 3/5 miles.
So, let be "x" the distance that she still need to ride to get to her friend's house.
The equation will be:

Remember that:

Also, if we need to add/substract fractions we must remember that:

If we need to switch fractions to mixed numbers, we need to:
- Perform the division
- Keep the whole number and make a fraction with the aproximated next whole number (remainder) as numerator, and the original denominator. We need to use the remainder to approximate to the next whole number.

Where:

So,

Then, substituting the given information into the equation, we have:

So, she still need to ride 
or
To prove if the answer is reasoable, let's substituite the obtained value into the equation and check if the equation is satisfied:




Have a nice day!
Answer:
A
Step-by-step explanation:
Rectangle - all angles are equal (90')
parallelogram - two adjacent angles are equal.
<span>1) the rectangle has all right angles </span>
<span>2)a rectangle diagonal bisects but not a parallelogram </span>
<span>3)a parallelogram has slanted lines </span>
<span>4)a parallelogram has acute and obtuse angles but not a rectangle</span>