Mr. Yi buys vegetables at a market. He purchases 6 pounds of potatoes, p, and 3 pounds of onions, n, for $18. Onions cost twice
as much as potatoes. To determine the unit price for each item, his daughter sets up and solves the system of equations shown.
2 answers:
Answer:
6 pounds of potatoes = $9
3 pounds of onions = $9
The onions cost $3 per pound
and the potatoes cost $1.50 per pound
Step-by-step explanation:
Answer:
Unit price of potatoes = $1.50.
Unit price of onions - $3.
Step-by-step explanation:
The system of equations is
6p + 3n = 18
n = 2p
Substitute n = 2p in the first equation:
6p + 3(2p) = 18
6p + 6p = 18
12p= 18
p = 18/12 = $1.50 .
Now plug p = 1.50 into the second equation:
n = 2*1.50 = $3.
You might be interested in
Answer:
y=2
Step-by-step explanation:
The answer fam is.......... "b.up"
Again take the variable to be x
x^12-15
Solution:
Two rows of tapes will fit in the box.
Box wide = 10 inches
Each tape wide = 5/8 inches
10/ (5/8) = (10 * 8)/5
= 16
There are two in each row. So, 32 tapes will fit in the box.
Answer:
$3.55
Step-by-step explanation:
You need to add 29% of $2.75 to $2.75.
That means the price will be 129% of $2.75.
129% of $2.75 =
= 1.29 * $2.75
= $3.55
