Answer:
Area: 16.5 square inches
Perimeter: 20.6 inches
Type: Right triangle
Step-by-step explanation:
The formula for the area of a triangle is 1/2bh, so substitute ‘a’ for ‘b’ and ‘b’ (from the question) for ‘h’.
1/2*7.5*4.4 = 16.5
Perimeter is the sum of all three sides, so add a+b+c.
7.5+4.4+8.7 = 20.6
The triangle has a right angle, so it is a right triangle.
Answer:
Brianna saved $108
Step-by-step explanation:
First take away 120 from the total, you will be left with 216
Then divide the final amount in two 216/2 will be 108
This may help :))
She worked 9 hours on store and gave piano lessons for 6 hours
Let x be the no. of hours she worked on store
Cost of 1 hour on shop = $8.47
Cost of x hours on shop = $8.47x
Let y be the no. of hours she gave piano lessons
Cost of 1 hour for piano lessons = $17
Cost of y hours on shop = $17y
B. Kayla walks 23 4/5 miles in 7 days, the reason is because there are 7 days in a week and it says, "Kayla walks 3 2/5miles each day! (KEY WORK. EACH DAY) so since there is only 7 days in a week than the answer is B. If I am wrong please correct me. Hopefully this helps!
Now, keep in mind that, we'll be using 25mile intervals, notice, that at a cost of 200 bucks, it went for 50 miles, now the charges are just for every 25miles only, so, if you drive 30 miles, you pay for 25miles and if you drive for 49 miles, you still only pay for 25 miles, but because 50/25 is 2 intervals, then if you drive for 50 miles, you're paying for 2 intervals of 25miles, not just one.
now, also let's keep in mind that, when the car was driven for 200 miles, that's 200/25 or 8 25mile intervals, so the 25mile charge kicked in 8 times.
