Daniel made an error in line 3. He wrongly divided the sum of sides and height. The area of the trapezoid is 42 cm².
<h3>What is the area of the trapezoid?</h3>
A trapezoid is a convex quadrilateral. A trapezoid has at least on pair of parallel sides.
Area of a trapezoid = 1/2 x (sum of the lengths of the parallel sides) x height
- Line 1: A = 1/2 x (6) + (7 + 7)
- Line 2: A = 1/2 (6) (14)
- Line 3 : 3 x 14
- Line 4 : A = 42 cm²
To learn more about trapezoids, please check: brainly.com/question/25748893
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Assume the sum is 100. The ratio of the two numbers is 15:10. This means that we can divide this indow 15+10, or 25 parts. Let us do that. Divide 100 into 25 parts and see how much is in each part. 100/25 is 4, meaning that there is 4 in each part. 15 parts will have 15*4, or 60. 10 parts will have 10*4, or 40. To confirm, add 40 and 60. It matches with what we started out with, 100.
The two numbers, assuming the sum is 100, are 40 and 60. 60 is the greater value.
If you would like to solve the following proportion 15 / 21 = 5 / x, you can do this as follows:
15 / 21 = 5 / x /*x
15 / 21 * x = 5 /*21
15 * x = 5 * 21 /15
x = 5 * 21 / 15
x = 7
The correct result would be C. 7.
Answer:
x = 5km/h
Step-by-step explanation:
If he walks 5km/h, he would reach 30km in 6hrs. However, if he walks 1km/hr faster which is 6km/h, he wouls reach 30km in 5hrs. This meaning he can complete the same distance 1 hour faster. Hope this helps you. Follow me for faster replies. And smash that Thank you button.❤
