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3 years ago

1080 labels on 90 sheets or 2250 labels on 150 sheets? which is the greater rate?

Mathematics

1 answer:

Alexandra [31]3 years ago

6 0

1080/90 = 12
2250/150 = 15

There would be a higher rate on the 2250 labels on 150 sheets.

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$239 television; 10% discount

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Step-by-step explanation:

cost of television-$239

discount-10%

239÷10

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3 years ago

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All factors pairs of 20?

Degger [83]

1 x 20

2 x 10

4 x 5 (these go the other way round as well, like 10 x 2, etc)

all factors of 20 = 1,2,4,5,10,20

hope this helps!

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The coefficient of "x" in 7-15xz is

hjlf

Answer:

-15

Step-by-step explanation:

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3 years ago

B. 8/27 D. 1/3 10. Three spheres of radii , 2r, and 3r, respectively, are melted and formed into a new sphere. Find the surface

Dahasolnce [82]

Answer:

$A_{f}=4\pi (\sqrt[3]{36} r)^{2}\\\\V_{f}=\frac{4}{3} \pi (36r^{3})$

Step-by-step explanation:

In order to find the final radii of the sphere, we need to calculate the volume, knowing that volumes are additive:

$V_{1}=\frac{4}{3} \pi (r^{3})\\\\V_{2}=\frac{4}{3} \pi (2r)^{3}\\\\V_{3}=\frac{4}{3} \pi (3r)^{3}\\\\V_{f}=\frac{4}{3} \pi (r^{3}+(2r)^{3}+(3r)^{3})\\\\V_{f}=\frac{4}{3} \pi (r^{3}+8r^{3}+27r^{3})\\\\V_{f}=\frac{4}{3} \pi (36r^{3})\\\\V_{f}=\frac{4}{3} \pi R^{3}\\\\R=\sqrt[3]{36} r$

Now that we know the radii of the new sphere, we can calculate the surface area:

$A_{f}=4\pi R^{2}\\\\A_{f}=4\pi (\sqrt[3]{36} r)^{2}$

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3 years ago

4 to the 3rd power X blank =1 what is the blank?

BaLLatris [955]

If you mean this: $4^{3x} = 1$ then x = 0. The property in play here is the following: Any number raised to the "0" power is equal to "1". In this case, we would need to set the exponent of 3x = 0 and solve for x...

If you mean the equation: $4^{3} x = 1$ then to solve for x(your blank), simply divide both sides of the equation by $4^{3}$ :

You would have x = $\frac{1}{4^3}$ this can also be written as $4^{-3}$

6 0

4 years ago