Answer:
<u>We bought 3 specialty pens and 5 standard</u>
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
Standard pencils cost $0.85
Specialty pencils cost $1.25
You buy 8 pencils for $8
2. How many specialty pencils did you buy?
Number of specialty pencils = x
Number of standard pencils = 8 - x
Let's write our equation to solve for x:
0.85 (8 - x) + 1.25x = 8
6.8 - 0.85x + 1.25x = 8
0.4x = 8 - 6.8
0.4x = 1.2
x = 1.2/0.4
x = 3 ⇒ 8 - x = 5
<u>We bought 3 specialty pens and 5 standard</u>
Use the table to draw the graph of height(y-axis) against week(x-axis).
The graph is a straight line.
Find the gradient of the graph as the first step.
Gradient = (y2-y1)/(x2-x1)
= (17-12)/(4-2)
= 5/2
Use this gradient to find the equation of the line. Use one of the point from the table (e.g. (8,27)) and another general point (x,y).
∴5/2=(y-27)/(8-x)
5/2 (x-8) = y-27
(5/2)x - 20 = y-27
y=(5/2)x - 20 + 27
y = (5/2)x + 7
The answer is A
Answer:
rise/run
1/3
Step-by-step explanation:
9.95^2 x 29.8 = 2,950.2745 and Yes the answer is sensible.
9/10 cannot be a mixed number. It is the final fraction.
