Step-by-step explanation:
1 _ 1.215
2_ 4.0608
3_1.5225
4_0.2875
5_3.6064
p= 1/7
Alright, so first, you need to flip the equation.<span><span>It will turn into p+<span>4/7</span></span>=<span>5/7
Next, you want to get the variable by itself so you need to subtract 4/7 from both sides. 5/7-4/7=1/7
p=1/7</span></span>
Answer:
37 meters
Step-by-step explanation:
The equation for the area of a trapezoid is 
.
Here, 
, 
, and 
is unknown.
The height of the trapezoid is the width of the garden, so the garden is 37 meters wide.
Let x be the number of 5 points question.
Let y be the number of 2 points question.
Total number of questions is 38
x + y = 38
Total points is 100
5x + 2y = 100
x + y = 38 ------------- (1)
5x + 2y = 100 ---------(2)
From (1):
x + y = 38
x = 38 - y -------------- sub into (2)
5(38 - y) + 2y = 100
190 - 5y + 2y = 100
3y = 90
y = 30 ------------------ sub into (1)
x + 30 = 38
x = 38 - 30
x = 8
There are 8 5-point questions and 30 2-point questions
60%
Working
£5:100%
£1:20%
£8:160%
So percentage increase is 60%
