Answer:
The 5 unknown are 1 quarter, 3 dimes, and 1 penny.
Answer:
x=2;DE,EF=9,DF=5
Step-by-step explanation:
Since DEF is isoceles, you can set the equations
x+7 and 2x+5 equal to each other
x+7=2x+5, now solve for x
-x=-2,
x=2, now plug in for each side
DE,EF=9
DF=3(2)-1=5
Answer:
230
Step-by-step explanation:
20x11=220
20x0.5=10
220+10=230
it's very simple, 694-72= 622
so in order for you to check you answer you do the opposite
694-72 would equal 622
622+72 would equal 694
According to PEMDAS multiplication is first so:
52 + 8*2
52 + 16
68
Hope this helped!
<span />