Answer:
easy 230-80 which is 150 so imagine a triangle with base 150 and hight 130-60=70 so times for area 150×70÷2 because it's triangle which is <em>5</em><em>2</em><em>5</em><em>0</em> so plus that with 130x80 for rectangle which is 10400 and add so it's 15650
What is it you need help with?
Answer:
Number of pineapples= 10
number of pears = 19
number of kiwis = 10 -2 = 8
Step-by-step explanation:
Cost of a pear = $ 0.50
Cost of a pineapple = $ 1.5
cost of a kiwi = $ 0.3
Let the pineapples = p
Number of pears = 9 + p
Number of kiwis = p - 2
The cost is
0.15 p + 0.5 (9 + p) + 0.3 (p - 2) = 13.50
0.15 p + 4.5 + 0.5p + 0.3 p - 0.6 = 13.50
0.95 p = 9.6
p = 10
Answer:
8:39
Step-by-step explanation:
because when simplified, all the rest are 1:5
Answer:
The lines representing these equations intercept at the point (-4,2) on the plane.
Step-by-step explanation:
When we want to find were both lines intercept, we are trying to find a pair of values (x,y) that belongs to both equations, which means that it satisfies both equations at the same time.
Therefore, we can use the second equation that gives us the value of y in terms of x, to substitute for y in the first equation. Then we end up with an equation with a unique unknown, for which we can solve:
![x+y=-2\\x+(2x+10)=-2\\x+2x+10=-2\\3x+10=-2\\3x=-2-10\\3x=-12\\x=\frac{-12}{3} \\x=-4](https://tex.z-dn.net/?f=x%2By%3D-2%5C%5Cx%2B%282x%2B10%29%3D-2%5C%5Cx%2B2x%2B10%3D-2%5C%5C3x%2B10%3D-2%5C%5C3x%3D-2-10%5C%5C3x%3D-12%5C%5Cx%3D%5Cfrac%7B-12%7D%7B3%7D%20%5C%5Cx%3D-4)
Next we use this value we obtained for x (-4) in the same equation we use for substitution in order to find which y value corresponds to this:
![y=2x+10\\y=2(-4)+10\\y=-8+10\\y=2](https://tex.z-dn.net/?f=y%3D2x%2B10%5C%5Cy%3D2%28-4%29%2B10%5C%5Cy%3D-8%2B10%5C%5Cy%3D2)
Then we have the pair (x,y) that satisfies both equations (-4,2), which is therefore the point on the plane where both lines intercept.