Answer:
5:9
Step-by-step explanation:
the ratio of the number of girls to the number of boys who attended the competition is 5:9
Answer:
y=7
x=5
Step-by-step explanation:
x-y=-2
+y +y
x=-2+y
then substitute -2+y into the x in the other equation
so:
2(-2+y) + 4y = 38
-4+ 2y +4y = 38
-4+6y= 38
+4 +4
6y=42
divide both sides by 6
y=7
to get X:
x-y=-2
x-(7)=-2
+7 +7
x=5
It depends how much the cat and dog toys cost
Answer:
x = 8.69
Step-by-step explanation:
we know that the perimeter of the dodecagon is 54, so each edge will be 54/12
54/12 = 4.5 cm
if we draw the lines to remove 6 vertices and form a hexagon, 6 triangles with 2 sides of 4.5 cm are formed.
we know that the angle of each vertex is 150 ° because it is a dodecagon
if we apply the law of cosines we can take the other side of the triangle, since we only need 2 side and the opposite angle to the side we want to know
a would be our x
b = 4.5
c = 4.5
A = 150°
a^2 = b^2 + c^2 - 2bc * cos (A)
x^2 = 4.5^2 + 4.5^2 - 2 * 4.5 * 4.5 * cos (150)
x^2 = 20.25 + 20.25 - 40.50 * -0.866
x^2 = 40.50 + 35.07
x = √ 75.57
x = 8.69
Answer:
Solution given:
total no of girls [g]=25
let no of boys [b]=b
according to the question
g=2b+3
25-3=2b
b=22/2
b=11
<u>total number of boys going to Hershey Park is 11</u><u>.</u>
