Answer:
(x, y) = (5, 1)
Step-by-step explanation:
To <em>eliminate</em> x, you can double the second equation and subtract the first.
... 2(x +4y) -(2x -3y) = 2(9) -(7)
...11y = 11 . . . . . simplify
... y = 1 . . . . . . divide by 11
Using the second equation to find x, we have ...
... x + 4·1 = 9
... x = 5 . . . . . subtract 4
_____
<u>Check</u>
2·5 -3·1 = 10 -3 = 7 . . . . agrees with the first equation
(Since we used the second equation to find x, we know it will check.)
Answer:
Bowling Ball because a bowling ball has mass in the middle. Basketballs are empty inside but Bowling Balls are more dense
Step-by-step explanation:
Answer:
I hope this helps a little bit
Answer:
CPCTC
Step-by-step explanation:
Triangle BUT ≅ triangle ETU. Therefore, by CPCTC (Corresponding Parts of Congruent Triangles are Congruent), we can determine that ∠B ≅ ∠E.
Answer:
G=125 X + 
50
Step-by-step explanation:
Bob charges 125 pieces for each magical brooms . And 50 as one time charge .
We have to find the formula for the number of gold pieces G as a function of X.
Let X be the number of brooms he constructed
The charge for a broom stick is 125 . So the number of gold pieces he received when X brooms are constructed is 125 X
There will be 50 Gold pieces as one time charge
so the total number of gold pieces will be 125 X + 50
therefore G=125 X +50
