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3 years ago

Estimate 246.78 divided by 83 please answer

1 answer:

3 0

The question is to estimate. You start estimating by rounding. 246.78 can be rounded into 250. 83 can be rounded to 80. Now we divide. 250 divided by 80 is 3.125. That is the rounded estimate.

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What is the value of 280

hammer [34]

Answer: Well, do you mean the whole value? If so... it's two-hundred and eighty. If you mean the individuals, then the two is two-hundred, the 8 is eighty.

Step-by-step explanation:

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3 years ago

Need help to solve please?? Need to proof

inysia [295]

Answer:

Step-by-step explanation:

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3 years ago

How do you simplify this ? 8(x - 4) - 6(x - 1) + 9x

Neporo4naja [7]

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4 0

3 years ago

Read 2 more answers

Sally finds a coin with a radius of 1.5 centimeters and a thickness of 0.25 cm. It has a measured mass of 18.54 grams. How can S

mote1985 [20]

Answer:

Silver

Step-by-step explanation:

Find the volume of the coin

Volume of a cylinder

$\textsf{V}=\sf \pi r^2 h \quad\textsf{(where r is the radius and h is the height)}$

Given:

r = 1.5 cm
h = 0.25 cm

Substituting given values into the formula to find the volume:

$\sf \implies V=\pi (1.5)^2(0.25)$

$\sf \implies V=0.5625 \pi \:cm^3$

Find the density of the coin given it has a measured mass of 18.54 g

Density formula

$\sf \rho=\dfrac{m}{V}$

where:

$\rho$ = density
m = mass
V = volume

Given:

m = 18.54 g
$\sf V=0.5625 \pi \:cm^3$

Substituting given values into the density formula:

$\implies \sf \rho=\dfrac{18.54}{0.5625 \pi}$

$\implies \sf \rho=10.49149385\:g\:cm^{-3}$

Given:

$\textsf{Density of Lead}=\sf 11.3\:g\:cm^{-3}$

$\textsf{Density of Silver}=\sf 10.49\:g\:cm^{-3}$

Therefore, as $\sf \rho=10.49\:g\:cm^{-3}$ the coin is made from silver.

4 0

2 years ago

What is the place value of 9 in 6545 . 965

Lana71 [14]

Answer:

Tenths is the correct answer because the first digit after the decimal represents the tenths place. the next digit after the decimal represents the hundredths place the remaining digits continue to fill in the place values until there are no digits left.

4 0

3 years ago