Answer:
124
Step-by-step explanation:
360 - (90+146) = 124
Let h = weight of the hardcover book.
Let p = weight of the paperback book.
<span>"The hardcover version of a book weighs twice as much as its paperback version."
h = 2p
"</span><span>The hardcover book and the paperback together weigh 5.3 pounds.</span><span>"
h + p = 5.3
The equations are:
h = 2p
h + p = 5.3
</span>
-2.5 would be the opposite
Answer:
d 13
Step-by-step explanation:
Subtracting means adding the opposite.
To subtract -4, you add the opposite of -4 which is 4, so you add 4.
9 - (-4) = 9 + 4 = 13
Answer: d 13
Answer: an = 4 × 5^(n - 1)
Step-by-step explanation:
The given sequence is a geometric sequence because consecutive terms differ by a common ratio. The
formula for determining the nth term of a geometric progression is expressed as
an = a1r^(n - 1)
Where
a1 represents the first term of the sequence.
r represents the common ratio.
n represents the number of terms.
From the information given,
a1 = 4
r = 20/4 = 100/20 = 5
Therefore, the explicit formula for the sequence is
an = 4 × 5^(n - 1)
