Answer:
-3
Step-by-step explanation:
First you subtract the first equation from the second one and you get:
3x + 3y = 3
x + y = 1
y = 1 - x
Then you use it on the first equation
888x + 889 (1 - x) = 890
888x + 889 - 889x = 890
-x = 1
x = -1
y = 1 - x
y = 1 - (-1) = 2
Now that you have those two numbers, we have to subtract the value of x from y:
x - y
-1 - 2 = -3
Hope this helps bro
Answer:
yes nate has enough for the groceries.
Step-by-step explanation:
to get the 6% tax you have to do 46 * .06=2.76
2.76 is the tax that would be charged, so nate's total would be $48.76 which is under his $50 dollar limit.
Answer:
60cm^2
Step-by-step explanation:
15 times 8 = 120
divided by 2 = 60
The values of x and y from the figure is 9 and 5 respectively
<h3>Similarity theorem of triangle</h3>
Two triangles are similar if the ratio of the similar sides is equal to a constant. From the given diagrams;
x/(8+4) = 6/8
x/12 =6/8
8x = 6 * 12
8x = 72
Divide both sides by8 to have:
8x/8 = 72/8
x = 9
Similarly;
10+y/x = 10/6
10+y/9 = 10/6
10+y/9 = 5/3
Cross multiply
3(10+y) = 5(9)
30 + 3y = 45
3y = 45-30
3y = 15
y = 5
Hence the values of x and y from the figure is 9 and 5 respectively
Learn more on similar triangles here: brainly.com/question/14285697
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The answer that I got was side WX = 12 inches
It says that WY is congruent to XY which means that they are the same. That means that XY is also 3m-4. It also says that the perimeter of the triangle is 76 inches.
With this information I set up an equation:
3m-4 + 3m-4 +m = 76
(The number on the right side is the perimeter given to us in the problem and the numbers on the left side are the 3 side lengths).
I combined like terms on the left side and ended up with:
7m-8=76
I added 8 to both sides of the equation and got 7m=84.
Finally I divided both sides by 7 and got m=12
m is equivalent to side WX..
Hope this helps!