Let’s make two equations. D being dimes and Q being quarters.
D+Q=100
0.1d+0.25q=14.05
Now, let’s multiply the first equation by -0.10 so that we can cancel out D.
-0.1D-0.1Q=-10
0.1d+0.25q=14.05
Let’s solve
0.15Q=4.05
Let’s divide.
Q=27
So there’s 27 Quarters. Since there are 100 in total, there must be 73 dimes.
Let’s make sure this adds up.
0.25(27)+0.1(73)
6.75+7.30
14.05
So there’s 27 Quarters.
Answer:
-12
Step-by-step explanation:
To find the "quotient" of something is to divide the digits. -84 ÷ 7 = -12.
Try this solution/explanation:
1. the rule is: m∠TRP=m∠YTR.
2. using the rule described above, it is possible to write the following equation: 3x=2x+35; ⇒ x=35°
Answer: 35°
Answer:
37º
Step-by-step explanation:
∠ABC (Interior) = 360º - 5x
Sum of interior angles in a polygon is (n - 2) x 180
Sum of interior angles of ABCD = (4 - 2) x 180 = 360º
79 + 2x + (360 - 5x) + 32 = 360
79 + 2x + 360 - 5x + 32 = 360
471 - 3x = 360
3x = 111
x = 37º
Answer:
x = 5 z = 94
Step-by-step explanation:
12x + 26 = 86
12x = 60
x = 5
360 - 172 = 188
z = 188 : 2 = 94
