Answer:
-15 is how many tests per hour i think, and 78 is how many tests total
Step-by-step explanation:
= 78 − 15ℎ
1 hour would be
78-(15x1)=63
2 hours would be
78-(15x2)=48
and so on.
Answer:
2/9
Step-by-step explanation:
The probability of getting any letter once is 1/3
The probability of getting any combinations = 1/3 * 1/3 = 1/9
The probability of getting two of the combinations = 1/9 + 1/9 = 2/9
The answer is <span>C. Percy earns a greater hourly wage of $7.50 at the library.</span>
Answer:
-9
Step-by-step explanation:
Its dropping down from 2 to 0 so that is negative then the -11 so it would be -9.
Answer:
3/35
Step-by-step explanation:
to solve this expression 1⁄5 × 4⁄7 × 3⁄4
solution
1⁄5 × 4⁄7 × 3⁄4
= 1 x 4 x 3/5 x 7 x 4
= 12/140
= 6/70
= 3/35
