Answer:
he could buy 5 cookies and 7 brownies
Step-by-step explanation:
8.75 for the brownies and it is 3.75 for the cookies = 12.50
7*1.25=8.75 5*0.75= 3.75 equals 12.50 all together
he can't buy more than 12 cookies and brownies all together.
Answer:
C = 2d + 15
Step-by-step explanation:
$2 per km, so $40 for 20km.
55-40 is 15 so $15 is a fixed price.
Hence, C = 2d + 15
7.79cm It is an equilateral triangle so it has 3 equal sides. That means each side is 9cm. <span>
Now draw a line from the top of the equilateral triangle to the base, and dividing it into two. You will have made two smaller triangles, with sides 9, 4.5, and h (the one you want to find).
A line drawn from the apex of an equilateral triangle to the midpoint of the base is perpendicular to the base, so you can use Pythagoras' Theorem!
4.5^2 + h^2 = 9^2
h = sqrt(9^2 - 4.5^2)
Therefore, the height is 7.79cm (2 decimal places)</span><span>
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