Answer: 0.0546 and 0.9829
Step-by-step explanation:
solution:
= P( 1.50< Z <2.25 )
= P(Z <2.25 ) - P(Z <1.50 )
Using z table,
= 0.9878-0.9332
=0.0546
b.
= P( -2.12< Z <3.73 )
= P(Z <3.73) - P(Z <-2.12 )
Using z table,
= 0.9999-0.0170
=0.9829
I think the Anwser is A I'm not sure tho
Answer:
12x + 20
Step-by-step explanation:
2(4x + 6 +2x + 4)
Answer:
$16.83
Step-by-step explanation:
If the usual price is $19.80 and they are on sale for 85% of the usual price, you can set this up in the form of a proportion.
With this, you first multiply 85*19.80 and then you divide that answer by 100 to solve for x, the sale price.
Another way you can approach it is by changing 85% into it's decimal form (.85) and multiplying this by the original price (19.80).