Answer: 90 it is the correct answer
Step-by-step explanation:
Since know mean is the same as average, we have the expression:
(7+8+3+9+10+6+5)/8 = 48/8 = 6
Answer:
The greatest number of groups he could have made is 4 groups
Each of the four groups will have:
4 Squares each
7 circles each
Step-by-step explanation:
16 squares
28 circles
Find the highest common factor of 16 and 28
16: 1, 2, 4, 8, 16
28: 1, 2, 3, 4, 7, 14, 28
The highest common factor of 16 and 28 is 4
This means the greatest number of groups he could have made is 4 groups
Each of the four groups will have:
16 squares = 16 / 4
= 4 Squares each
28 circles = 28 / 4
= 7 circles each
Each of the four groups will have:
4 Squares each
7 circles each
a - length of side of a square
t - length of side of a triangle
The perimeter of a square:
The perimeter of a triangle:
We have the area of a triangle:
The formula of an area of an equilateral trinagle:
Substitute:
<em>multiply both sides by 4</em>
<em>divide both sides by </em>
The perimeter of a triangle:
Substitute to the formula of a perimeter of a square:
<em>divide both sides by 4</em>
The formula of a diagonal of a square:
Substitute:
Answer:The expression can be simplified in following steps;
Step-by-step explanation:
(16+a)+15=0
16+15+a=0
31+a=0
a=-31