Answer:
your answer is b let me know if im wrong or nah
Step-by-step explanation:
Answer: Lydia’s new balance would be $12.26.
Explanation:
Deposit means add so,
-18.24+30.50=12.26
Now Lydia will have $12.26 in the account.
Answer:
(L + 10)/(L + 16) = 0.8
Step-by-step explanation:
She needs to answer L more questions to get a grade of 80%.
When she answers L more questions correctly, she will have answered L + 10 questions correctly.
The total number of questions will be L + 16.
L + 10 must be 80% of L + 16
(L + 10)/(L + 16) = 0.8
The key to solving this problem is drawing a rectangle outside the figure and subtracting the reas of the triangles formed from the are of the rectangle. You can look at the attched image if you want a visual.So first let's find the area of the rectangle, the length is 11 and the width is 5 so the area is 55. Now let's find the area of the trinagles. Triangle 1 has sides of 4 and 3 so the area is 6. Triangle 2 has sides of 5 and 5 so the area is 25/2. Triangle 3 has sides of 2 and 5 so the area is 5. Now let's add the area of the triangles up to get 47/2. Now let's subtract 47/2 from 55 to get the area of the figure which is *drumroll*...63/2. that's all.