7 because if u divide 10,885 with 1,555 the answer is 7
Answer:
14a + 8b
Step-by-step explanation:
First, you need to combine like terms.
4a + 10a = 14a
12b + (-4b) = 8b
14a + 8b
Let f=number of five pound and e=number of eight pound dumbbells
5f+8e=282
8e=282-5f
e=(282-5f)/8
...
8f+12e=432, using e found above
8f+12(282-5f)/8=432
64f+12(282-5f)=3456
64f-60f+3384=3456
4f+3384=3456
4f=72
f=18, since e=(282-5f)/8
e=24
So there are 18 five pound and 24 eight pound dumbbells in the shipment.
Since 11/10 is 1.1 you can add that to 22 and get 23.1. Then you can subtract 35 - 23.1 and get
11.9
Add 10 to both sides
3x^2 = -5 + 10
Simplify -5 + 10 to 5
3x^2 = 5
Divide both sides by 3
x^2 = 5/3
Take the square root of both sides
x = √5/3
Simplify √5/3 to √5/3
<em>x = ±√5/3</em>
<u>Answer: A. x = ±√5/3</u>