Question

The estimated costs for remodelling the interior of an apartment are: three 1-gallon cans of paint at $13.69 each, two paint brushes at $9.53 each, and $135 for a helper. The total estimated cost with the appropriate significant figures is $

Answer 1

$195

Step-by-step explanation:

Step 1: Given data

• Cost of a 1-gallon can of paint (cC): $13.69

• Number of 1-gallon cans of paint (nC): 3

• Cost of a paint brush (cB): $9.53

• Number of paint brushes (nB): 2

• Cost of a helper (cH): $135

• Number of helpers (nH): 1

Step 2: Calculate the total estimated cost for remodelling the interior of an apartment

We will use the following expression.

C = cC × nC + cB × nB + cH × nH

C = $13.69 × 3 + $9.53 × 2 + $135 × 1

C = $195