Answer:
- There are 10 bags.
- 9 of the bags have real coins, 1 bag has fakes.
- A real coin weighs 10 g, a fake coin weighs 9 g.
Take 1 coin from the first bag, 2 coins from the 2nd bag, 3 coins from the 3rd bag, 4 coins......., 5 coins............, .........10 coins.......
If there are no fakes at all, the total weight should be: 550 grams.
If the weight is 545 grams, there would be 5 fakes, and so the fake bag would be Bag 5. (because there is a 5 gram difference)
I hope this helps!
pls ❤ and mark brainliest pls!
Answer:
Step-by-step explanation:
∠BEC is supplementary with ∠BEA
<u>Find the measure of ∠BEA</u>
- m∠BEA = 1/2(mCD + mAB)
- m∠BEA = 1/2(120° + 100°) = 110°
<u>Supplementary angles sum to 180°</u>
- m∠BEC + m∠BEA = 180°
- m∠BEC = 180° - 110° = 70°
Correct choice is D
The instructions are to find a solution set graphically, which I have attached. Substituting the two ordered pairs into the original system of equations proves that we solved correctly. I have also attached a step-by-step algebraic solution. Similarly, checking the solutions shows that there are no extraneous solutions.
The solution set is {0, 5}.
Answer:
x=-2/3+2y/9-3y=8
Step-by-step explanation:
solve the equation for y
y=-6
put y=-6 into the equation x=-2/3+2/9×(-6)=-2
(x,y)=(-2,-6)
Answer:
where is the diagram or the explanation of the circle?