Answer:
$2.20
just count the coins and add 'em up :)
Step-by-step explanation:
1°.2°.3°.4°.5°.6°.7°.8°.9°.10°.11°.12°.13°.14°.15°.16°.17°.18°.19°.20°.
Answer:
for the first one
77 for the second one
the last one is -72x^-5
Step-by-step explanation:
i dont know about the other two, but i hope these answers help
Answer:
n+3 = 15 ; n = 12
3n -6 = 12; n=6
Step-by-step explanation:
more than means it comes after
a number
n
3 more than
n+3
is 15
n+3 = 15
Subtract 3 from each side
n+3-3 = 15-3
n = 12
Subtract from comes after
three times a number
3n
six subtracted from
3n -6
is 12 means equal to
3n -6 = 12
To solve add 6 to each side
3n -6+6 =12+6
3n = 18
Divide by 3
3n/3 =18/3
n =6
Since there are parenthesis, you have to distribute the exponent to the whole thing. That ends up as -0.2^4 x^4 y^4. -0.2^4 can be simplified, it’s -0.0016. End answer is
-0.0016 x^4 y^4. The ^ symbols just mean that it’s to the power of four. x^4 = x to the power of four.