Given :
Now, Substituing the value of y in equation (ii) :
Now, substituting the value of x in equation (i) :
Answer:
B) Parallel lines
Step-by-step explanation:
the lines are parallel because the lines don't cross each other and are straight up and down.
skew line- a line on a shape that is not parallel and does not intersect.
parallel- when lines are straight up and down and don't cross each other. example ||
horizontal- when lines are straight left to right and don't cross each other. example =
intersecting- when lines cross each other.
7 gallons for minute because 49 divided by 7 (which is the mins) would be 7. Leading to the answer of ) gallons per minute
Answer:
Step-by-step explanation:
3 coins pulled are 10 cents or more
5 coins are under 10 cents
so 3 out of 8 coins are 10 cents or more
the jar contains 200 coins
This is a ratio problem 3 is to 8 as x (an unknown value) is to 200
3/8 = x/200 solve for x
times both sides by 200
200(3/8) = x solve directly here using a calculator
600/8 = x or keep similifying until you can divide more
300/4 = x easily I kept dividing the numerator and the
150/2 = x denominator by 2 until i got 150/2 = 75
75 = x
Harvey would need to multiply the first equation by -2 and the second equation by 7.
You can tell this by looking for the least common multiple of each x coefficient. Below are the multiples of both numbers.
7: 7, 14, 21, 28, 35, 42
2: 2, 4, 6, 8, 10, 12, 14, 16, 18
You'll notice that the first number to appear in both lists is 14. So we must multiply so that one x is 14 and the other is -14. To do this, we know we must multiply 7 by -2 and 2 by 7. This will give us the desired result. You can solve for y after that.