B ) a red six , given that it’s not a black card
Remember
(ab)/(cd)=(a/c)(b/d)
and

1kg=1000g=1*10^3g
hmm, I estimate, 4 of them
x=number of attoms
mass of 1 times x=1*10^3
3.95*10^-22 times x=1*10^3
divide both sides by 3.95*10^-22
x=

=

=

a million has 9 zeroes
so 24 zeroes is alot that is a <span>septillion, so there are 2.5316 septillion uranium atoms in 1kg
a. 4
b. underestimate
</span>
Answer:
800,000,000 90,000,000 5,000,000 3,000 40 9
Step-by-step explanation:
-1 7/9= -2 5/6 + 1/3x
+2 5/6 to each side
-1 7/9 + 2 5/6 = 1 1/18
1 1/18 = 1/3x
Divide each side by 1/3
Answer is 3 1/6
Answer:
t = 1
Step-by-step explanation:
5t + 8 = 13
Subtract 8 from both sides
5t + 8 - 8 = 13 - 8
5t = 5
Divide both sides by 5
5t/5 = 5/5
t = 1
Check:
5t + 8 = 13
5(1) + 8 = 13
5 + 8 = 13