Answer:
12 cm
Step-by-step explanation:
width = x
length = x + 5
perimeter = 38cm
perimeter = length + width + length + width
x + 5 + x + x + 5 + x = 38
4x + 10 = 38
4x = 28
x = 7
length = x + 5 = 7 + 5 = 12
It would take a while to explain so here is an easier explanation to understand :http://www.virtualnerd.com/algebra-2/quadratics/transforming-functions/vertex-form/convert-vertex-to...
Hope this helps!
<h2>
Explanation:</h2>
Here we have to solve a system of linear equations in three variables. Let:
x: Cost of pens
y: Cost of pencils
We know that:
- Bailey buys 2 pens and 6 pencils and spends a total of $7.00. So:
- Jeremiah buys 3 pens and 5 pencils and spends a total of $7.50. So:
Multiplying eq1 by 3 and eq 2 by -2:
Then adding these two resultant equations:
How much will Maggie spend to purchase 4 pens?
Each pen costs $1.24, so 4 pens will cost:
I I'm almost positive the correct answer is c
Answer:
Apex Answer: $22,241.32
Step-by-step explanation: