Answer:
17 dimes, 21 quarters
Step-by-step explanation:
I suppose you want to know how many dimes and quarters she had in her jar.
Let's say x = dimes and y = quarters.
We can make the following 2 equations:
1) x + y = 38 (number of coins in the jar)
2) 10x + 25y = 695 (a number of dimes plus a number of quarters sum up to 695 cents)
From 1), we can isolate y: y = 38 - x, and place that value in the second equation:
10x + 25y = 695
10x + 25 (38 - x) = 695
10x + 950 - 25x = 695, then we subtract 950 on both sides and simplify
-15x = -255
x = 17
So, Jenna had 17 dimes.
y = 38 - x, so y = 38 - 17 = 21
And she had 21 quarters.
Answer:35
Step-by-step explanation:
We add or subtract from left to right to find the value of the expression:
3
Because the result is negative, she is below the cave entrance (by 35 feet).
Answer:
b. 40.5
Step-by-step explanation:
The appropriate formula for the area is ...
area = (1/2)bc·sin(A) = 63·sin(40°) ≈ 40.5 . . . . square units
The answer is b)04 I did this on my test and got it correct
784/4 = 196
196 * 4 = 784
4 * 196 = 784
So the answer is : 196