Answer:
No, a trapezoid is not a parallelogram. A trapezoid is defined as having Exactly two parallel sides while a parallelogram has two pairs of parallel sides.
Step-by-step explanation:
Let x be your first alloy
2/5x+7/10(30-x)=1/2(30)
4x+210-7x=150
3x=60
x=20
So, you need 20 lbs of the first alloy, and 10 parts of the second to make 30 lbs of half iron and half silver alloy!
Answer:
$1045.85.
Step-by-step explanation:
A=p(1+r/12)^6
Here r = 0.09, P = $1000 so
Amount of money needed to pay off the loan =
1000(1 + 0.09/12)^6
= $1045.85.
In order to get an accuarte answer, make sure to divide 1.49 by 3. You'll end up with .50 (rounded). To find out the second unit price make sure to divide .69 by 18. You should end up with .04 (once again, rounded). It is better to buy the second set because it is about .46 cheaper than the first. Hope this helps!
A.) The rate of change is the ratio of y changing to x. In other words, it's the slope of the line
b.) This can also be found based on the slope. If the slope is positive, y increases as x increases. If it is negative, y decreases as x increases. If the slope is 0, y is neither increasing nor decreasing because it is a horizontal line. Hint: it may be helpful to graph the line so you can see what's going on
c.) The y-intercept is where the line crosses the y-axis. This can be found by plugging in x=0 into the equation. For number 11, the y-intercept is 0.
d.) This can be found by plugging in any number for either variable and then solving for the other. For number 11, if you plug in x=10, you get y=15, so you get the point (10,15)
