2 years ago

Fred salmon purchased six 1000 bonds at 92. the bonds pay 6.5%

Mathematics

1 answer:

Feliz [49]2 years ago

6 0

I think that's what you mean

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ollegr [7]

I don't get how it would be a system of equations.

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2 years ago

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3. A penny is made by combining 0.1 g of a copper alloy that costs $5.50 per kilogram (1000 grams) with

lbvjy [14]

.0001*5.5 + 1.5*x = 2
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2 years ago

Cheddar cheese costs $4.50 per pound at the deli counter. Which equation best represents y, the total cost of x pounds of chedda

NISA [10]

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4.50x=y

Step-by-step explanation:

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3 years ago

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A spherical balloon is being inflated at a rate of 3 cubic inches per second. Determine the change in the rate of the radius.How

Novay_Z [31]

Answer:

The rate rate of change of radius is $\frac{1}{48\pi}$ inches per second when the diameter is 12 inches.

The radius is changing more rapidly when the diameter is 12 inches.

Step-by-step explanation:

Consider the provided information.

A spherical balloon is being inflated at a rate of 3 cubic inches per second.

The volume of sphere is $V=\frac{4}{3}\pi r^3$

Differentiate the above formula with respect to time.

$\frac{dV}{dt}=4\pi r^2\frac{dr}{dt}$

Substitute the respective values in the above formula,

$3=4\pi 6^2\frac{dr}{dt}$

$\frac{1}{48\pi}=\frac{dr}{dt}$

The rate rate of change of radius is $\frac{1}{48\pi}$ inches per second when the diameter is 12 inches.

When d=16

$3=4\pi 8^2\frac{dr}{dt}$

$\frac{3}{256\pi}=\frac{dr}{dt}$

Thus, the radius is changing more rapidly when the diameter is 12 inches.

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3 years ago

Sasha baked 21 cookies with 3 scoops of flour. How many scoops of flour does Sasha need in order to bake 28 cookies? Solve using

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4 because 21 is 3x7 and 28 is 4x7

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