Answer: 0.2
Step-by-step explanation:
Answer:
a = 7
Step-by-step explanation:
3(1 - 2a) = -3a - 18
3 - 6a = - 3a - 18
Add 18 to each side:
3 + 18 - 6a = - 3a - 18 + 18
21 - 6a = - 3a
Add 6a to each side:
21 - 6a + 6a = - 3a + 6a
21 = 3a
3a = 21
Divide each side by 3:
3a ÷ 3 = 21 ÷ 3
a = 7
Answer:
x = -25.
Step-by-step explanation:
If f(x) = 2x + 1, and g(x) = -5x + 2, then f(g(x)) = 2(-5x + 2) + 1 = -10x + 4 + 1 = -10x + 5.
f(g(x)) = -10x + 5, and x = 3.
-10 * 3 + 5
= -30 + 5
= -25.
Hope this helps!
9514 1404 393
Answer:
$17.97
Step-by-step explanation:
It should be no surprise that the total cost is the sum of the costs of the items being purchased.
We can add the costs of repeated items into the sum several times, or we can use multiplication to find their cost. Most folks use multiplication to find the sum of repeated numbers.
milk + strawberries + bananas
= $3.49 + 2×$4.99 +6×$0.75
= $3.49 +9.98 +4.50
= $17.97
Jane spent $17.97 on these food ingredients.
_____
<em>Additional comment</em>
If you're paying attention, you see that this is what happens at the cash register every time you buy something at a store.
