to form new numbers, zero is placed in different position from left to right in the number 697 325. Observe the position of zero
1 answer:
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Answer:
A box = $11
Step-by-step explanation:
Given
Represent the first order with A and the second with B.
So, we have:
Solving (a): Find B.
To find B, we make use of:
Make B the subject
Substitute values for Total and A
Open bracket
Collect Like Terms
Solving (b): Cost of a box of light bulb
This means that:
Substitute 7x + 13 for Total
Collect Like Terms
Make x the subject