Area of a triangle = 1/2 x base x height
.
Area = 1/2 x 4 x 3 = 6 cm²
.
Answer: Area = 6 cm²
38 pages of the book will cost $57.
Data;
- number of page = 20
- cost = $30
<h3>Proportions</h3>
To solve this question, we have to know the cost of one page of the book.
In the first scenario, 20 pages cost $30, let's find the cost of one page here.
We can confirm our answer here by testing with the second scenario;
Now can say that one page of the book cost $1.5, let's divide 57 by this to determine the number of pages
From the calculations above, 38 pages of the book will cost $57.
Learn more on proportions here;
brainly.com/question/18437927
Answer:
256271
Step-by-step explanation:
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Umm I'm not that good at this but my guess is One triangle let me know if that was right
Answer:
30% of $40 would be $12
Step-by-step explanation:
To figure this out you can do cross multiplication. Take 30 over 100 like a fraction (30/100) and then that equals x over 40 (x/40), x being 30% of $40. then you would multiply diagonally. 100 times X and 30 times 40 getting you to 100x = 1200 then isolate the variable so there is no numbers with it, meaning you have to divide both sides by 100. 100x divided by 100= X and 1200 divided by 100= 12. So X=12, meaning 30% of $40 is $12.
