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Katyanochek1 [597]
3 years ago
13

The bag was filled with red marbles and blue marbles in the ratio of 5:7. If there were 180 marbles in the bag,how many were red

?
Mathematics
2 answers:
SOVA2 [1]3 years ago
3 0
You just have to multiply each number by 180 and that's how many you have of each color respectively
7nadin3 [17]3 years ago
3 0
R + B = 5/7 x 180
R + B = 900/7 = 128, 4/7
If R = B than R is 450/7 = 64, 2/7
R or B = 64, 2/7
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V = (4/3) pi  r^3

9.  V = (4/3)(3.14)(7.62)^3 = 1852.4  meters^3
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5 0
3 years ago
The surface area of a right cone is 400.2 m2. The radius of the cone is 6.0 m. Determine the height of the cone to the nearest m
svetoff [14.1K]
                 S = πr(r + √(h² + r²))
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          18.84                 18.84
        21¹⁰⁹/₄₇₁ = 6 + √(h² + 36))
        - 6         - 6
        15¹⁰⁹/₄₇₁ = √(h² + 36)
231²²¹⁰⁰⁵/₂₂₁₈₄₁ = h² + 36
- 36                       - 36
195²²¹⁰⁰⁵/₂₂₁₈₄₁ = h²
                14 ≈ h
8 0
3 years ago
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