Answer:
See below ~
Step-by-step explanation:
Let the bases be x and x + 6.
Substituting the known values into the formula :
- A = 1/2 x (a + b) x h
- 48 = 1/2 x (x + x + 6) x 4
- 2x + 6 = 24
- 2x = 18
- x = 9
The base lengths are :
- x = 9 inches
- x + 6 = 9 + 6 = 15 inches
The depth of the joist that was drilled by Freddy is 5 1/3 inches.
From the information given, we are informed that Freddy drilled into a piece of wood and a joist to attach them and that be drilled 4 inches and the wood was 1 1/3 inches thick.
Therefore, to get the depth that was drilled, we'll need to add the fractions given together. This will be:
= 4 + 1 1/3
= 5 1/3 inches.
Therefore, the depth of the joist that was drilled by Freddy is 5 1/3 inches.
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