Answer: 5 days
Step-by-step explanation:
so we need to find:
55 - 6a = 40 - 3a
with a being the days we need to find
-40 on each side
15 - 6a = -3a
+6a on each side
15 = 3a
divide each side by 3
5 = a
The answer is the last one
Answer:
Step-by-step explanation:
h(x) = x² - 5x
x² - 5x = 104
x² - 5x - 104 = 0
D = (- 5)² - 4(1)(- 104) = 441 = 21²
= (5 - 21) / 2 =<em> - 8</em>
= (5 + 21) / 2 =<em> 13</em>
Answer:
4 + 3 × 5 = 19
Step-by-step explanation:
→ Work out 3 × 5
15
→ Add 4
19
