Answer:
12
Step-by-step explanation:
1st of all we should let the ration of boys to girls be 2x and 3x.
After that we should make the sum between 2x and3×and the sum of 2numbers is equal to 30
i.e.2x+3x=30
Then ,by solving this eqation we get the value of x=6
After that put the value of x in the number of boys
i.e.
2x=2×6=12
Hence ,the number of boys is 12
Answer:
Surface area ~ 197.33
<em>Hope that helps!</em>
Step-by-step explanation:
Answer:
Step-by-step explanation:
Please see the attachment for full step by step solution
Answer:
false
Step-by-step explanation:-3 in the () means -3 x -3 which is positive 9, where as without () it's -3x3 which is -9. Positive 9 is bigger than -9.
Answer:
<h3>6.5</h3>
Step-by-step explanation:
The triangle shown is right angles where;
opposite side = x
adjacent side = 8
Angle of elevation = 39°
Using TOA trigonometry identity
tan 39° = opp/hyp
tan 39° = x/8
x = 8tan39°
x = 6.48
<em>Hence the value of x is 6.5 to the nearest tenth</em>
