Solve: -3k(1-6k)=6k+21
1 answer:
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Answer:
A, 6
Step-by-step explanation:
<em>subtract</em> from both sides
<em>divide</em> both sides by
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Answer:
87.5 teaspoons
Step-by-step explanation:
Given that a mixture of purple paint contains 6 teaspoons of red paint and 15 teaspoons of blue paint.
So, Purple paint : Blue paint = 6 :15
To make the same shade the ratio of purple and blue paint must be the same.
In the new mixture, the amount of purple paint =35 teaspoon.
let the amount of red paint =x teaspoon.
So, in the new mixture,
Purple paint : Blue paint = 35 : x
So, to make the same shade, the ratio of purple and red paint must be the same, i.e
35 : x = 6 :15
Hence, 87.5 teaspoons of red paint required to mix with 35 teaspoons of purple paint to make the same shade.