Answer:
b. 97
Step-by-step explanation:
Home work = 88
20 % of 88 = 88 x 20/100 = 17.60
Quiz Average= 84
25 % of 88 = 84 x 25/100 = 21
Test Average= 92
40 % of 92= 92 x 40/100 = 36.8
Add all = 17.60 +21+ 36.8= 75.40
Let the marks be x in final exam
The percentage is 15 % and scores a 90 in a class we can write
15x/100 + 75.40 =90
0.15x= 90-75.40
0.15x= 14.60
x= 14.60/0.15= 97
final exam marks will be 97
Answer:
16 pounds
Step-by-step explanation:
1/5 is just 20% percent as a fraction so just multiply 80 by 205 to get 16.
Answer:
<DFE
Step-by-step explanation:
Verticle angles are when they are directly apart and equal. So,
Answer:
24.58
Step-by-step explanation:
In the big triangle, you see two little triangle
one of the little triangle is a 45-45-90 triangle (the number represent the angle measures of the triangle)
this means that the legs are the triangle can be considered one, and the hypotenuse can be considered
so in any 45-45-90 triangle, if you have a leg that is 4, then you know the other leg is also 4, and the hypotenuse would be 4 times (aka 5.65)
the other triangle is a 30-60-90 triangle (the number represent the angle measures of the triangle)
this means that the smallest leg of the triangle can be considered one, and the other leg (the bigger one) can be considered 2, and the hypotenuse can be considered
so the smallest leg here is 4, this means that the other leg would be 2 times 4 (aka 8)
and the hypotenuse would be 4 times (aka 6.93)
so the sides that count to the perimeter of the given triangle would be 4, 5.65, 8, and 6.93
add those up and you get: 24.58
2l + 2w = P
2(9) + 2w = P
Just use perimeter equation