Determine the value of a + b in the system of equations below. 5a + 4b = 22 7a-b= 11
1 answer:
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A graph and a table are provided below this discussion. You should plot these in this order.
y = 1 - 3x In red. It might be hard to see
y < 1 - 3x In blue
The table which is to the left of the graph
The table is constructed by putting a value in for x
x = 2
y = 1 - 3(2)
y = 1 - 6
y = - 5
Answer:
$331.25
Step-by-step explanation:
Given:
The jewelry center bought a pair of earrings for $250
They are going to mark the price of the earrings up 32.5%
Question asked:
How much will they sell the earrings for ?
Solution:
Cost price of a pair of earrings = $250
Mark up value = 32.5% of $250
=
Now, we can find selling price of a pair of earring by simply adding the cost price and the mark up value.
Selling price = cost price + mark up value
= 250 + 81.25
= $331.25
Thus, they sell the earrings for $331.25