3 years ago

Need answer ASAP please help

Mathematics

1 answer:

Step2247 [10]3 years ago

8 0

Answer:

Step-by-step explanation:

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Ivan's chocolate bar is 64% cocoa. If the weight of the chocolate bar is 68 grams, how many grams of cocoa does it contain? Roun

Gennadij [26K]

Answer:

0.64 x 68 = 43.5 grams

Step-by-step explanation:

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2 years ago

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The radius of a sphere is increasing at a rate of 2 mm/s. How fast is the volume increasing (in mm3/s) when the diameter is 40 m

daser333 [38]

Answer:

$\dfrac{dV}{dt}=502.65\ mm^3/s$

Step-by-step explanation:

The volume of a sphere is given by :

$V=\dfrac{4}{3}\pi r^3$

The rate of change of volume means,

$\dfrac{dV}{dt}=\dfrac{d}{dt}(\dfrac{4}{3}\pi r^3)\\\\\dfrac{dV}{dt}=\dfrac{4}{3}\pi \times 3r\times \dfrac{dr}{dt}$

We have, $\dfrac{dr}{dt}=2\ mm/s\ and\ r=40\ mm$

So,

$\dfrac{dV}{dt}=\dfrac{4}{3}\pi \times 3\times 20\times 2\\\\=502.65\ mm^3/s$

So, the volume is increasing at the rate of $502.65\ mm^3/s$ .

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3 years ago

so far, Jim has burned 5.22 calories. He wants to burn a total of 600 calories. how many more calories must jim burn?

alekssr [168]

Answer:

594.78

Step-by-step explanation:

600-5.22 = 594.78

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3 years ago

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The fish is 25 millimeters long. the guinea pig is 25 centimeters long whats the difference

PilotLPTM [1.2K]

Every millimeter is 1/10 of a centimeter, so 1 mm = 0.1 cm and 50 mm = 5 cm. This means that 25 mm can be re-written as 2.5 cm, and we can then find the difference by doing 25 - 2.5 = 22.5 cm. If you were looking for a different type of answer, you can also say that 25 mm is 10 times less than 25 cm.

I hope this helps!

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4 years ago

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Pete went to the store. He bought 3 pounds of chili peppers, 5 pounds of habanero peppers,

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Chili peppers: 3 pounds x $2 per lb = $6
Habanero peppers: 5 pounds x $2 per lb = $10
Red bell peppers: 1 pound x $2 = $2
6+10+2= $18 dollars spent total

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2 years ago