Answer:
(7, - 2 )
Step-by-step explanation:
Given the 2 equations
x = - 3y + 1 → (1)
- 3x - 3y = - 15 → (2)
Substitute x = - 3y + 1 into (2)
- 3(- 3y + 1) - 3y = - 15 ← distribute and simplify left side
9y - 3 - 3y = - 15
6y - 3 = - 15 ( add 3 to both sides )
6y = - 12 ( divide both sides by 6 )
y = - 2
Substitute y = - 2 into (1) for corresponding value of x
x = - 3(- 2) + 1 = 6 + 1 = 7
solution is (7, - 2 )
Answer:
are of the tilted square is 45 sq. units.
Answer: 18/25 chapters / hour
Step-by-step explanation:
<u>Concept:</u>
Here, we need to know the idea of unit rate.
A unit rate is a rate with 1 in the denominator.
In simple words, the unit rate is something per one thing. For example, when you go to a store, you bought a book that is priced at $10. In actually meaning, it is $10 per book, or $10/book.
<u>Solve:</u>
<em>Given formula</em>
Unit rate = Number of chapters / Hours
<em>Substitute the value into the formula</em>
Unit rate = (3/5) / (5/6)
<em>Convert to multiplication by taking the reciprocal of the divisor</em>
Unit rate = (3/5) · (6/5)
<em />
<em>Numerator times numerator / denominator times denominator</em>
Unit rate = (3 × 6) / (5 × 5)
Unit rate = 18 / 25 chapter / hour
Hope this helps!! :)
Please let me know if you have any questions
