Answer:
a. 20h + 8
Step-by-step explanation:
-2(-7h-4) + 6h = 14h + 8 + 6h = 20h + 8
Hello,
Please, see the attached file.
Thanks.
Part A:
C= a + bn
Make the two equations out of the words:
82 = a + b100 * 2.5 = 205 = a + b250
157 = a+ b250
Subtract the two,
205 = a + b250
- ( 157 = a + b250)
48 = a
Find b by substituting in a:
82 = a + b100
82 = 48 + b100
34 = b100
b = 0.34
Answer for part a: a = 48 , b = 0.34
Part B:
C = a +bn <- when n = 300 , put in a and b, then solve
C = 48 + 0.34(300)
C = 48 + 102
C = 150
Cost when hiring a lorry to travel 300 miles is 150 pounds
If she can make 15 per hour that would mean that each hour she is making 15 cans.
She has 6 hours that means that she will make 90 products.
How To Do The Math: 15<span>×6=90
Since we are finding out how many pins she need and not haw many products we will have to check how many pins she will need per product.
She needs 3 pins per product.
Since she will be making 90 products all we have to do is multiply 90 by 3 which will equal 270.
How To Do The Math:90</span><span>×3=270
Your Answer will be 270 Pins.</span>
