Joseph is shopping for school supplies. The store is selling 4 notebooks for $5. Joseph needs to buy 5 notebooks. How much will
1 answer:
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Answer:
Triangle ABC is dilated by a scale factor of 1.5
Step-by-step explanation:
The general rule for the dilation about the origin with a factor of k is
You are given two triangles ABC and A'B'C'.
In triangle ABC:
- A(2,4)
- B(4,0)
- C(6,6)
From the diagram, in triangle A'B'C':
- A'(3,6)
- B'(6,0)
- C'(9,9)
As you can see
So, triangle ABC is dilated by a scale factor of
Answer:
9 labours
Step-by-step explanation:
In order to solve this, we must know which kind of proportionality is this. There are two types of proportions, direct and indirect/inverse proportions. In direct proportion, if one quantity increases, the other quantity also increases.
In indirect proportion, if one quantity increases, the other decreases and vice versa.
As per this question, we know if the number of labour increases, the number of days to complete a work decreases, thus proving that this is an indirect/inverse proportion.
6 labours => 12 days
x labours => 8 days
Since its an inverse proprotion, multiply 6 with 12, and x with 8.
8x = 6 × 12
x =
∴ x = <u>9 labours</u>