Brian has 8 feet of canvas. He needs 1/4 foot to make a painting.

Mathematics

2 answers:

Charra [1.4K]3 years ago

3 0

Answer:

32 paintings

Step-by-step explanation:

You have to divide 8 by $\frac{1}{4}$

turn 8 into a fraction by putting a 1 under it, $\frac{8}{1}$ , and flip the other fraction, $\frac{4}{1}$

now, you multiply the fractions

$\frac{8}{1}$ × $\frac{4}{1}$ = $\frac{32}{1}$ , so you get 32 over one, which you can just simplify into 32

Brian can make 32 paintings.

VladimirAG [237]3 years ago

3 0

Answer:

Brian can make 32 paintings.

Step-by-step explanation:

Since the numerator is 1, we can multiply the whole number by the denominator. So all in all, 8 times 4 is 32.

So Brian can make 32 paintings.

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The isotope cobalt-60 has a nuclear mass of 59.933820 u

Lesechka [4]

Cobalt has an atomic number (Z) of 27, which means the nuclei of all its isotopes have 27 protons. Cobalt 60 has an atomic mass of 60, so it has 60-27 = 33 neutrons.

The mass of 27 isolated protons plus the mass of 33 isolated neutrons would be:

27*(1.007825 u) + 33*(1.008665 u) = 60.497220 u

The actual mass of the nucleus of 60-Co is 59.933820 u.

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The mass defect is equal to the binding energy of a nucleus.
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3 0

4 years ago

Which of these is the algebraic expression for "4 times the sum of 2 and y?"

Volgvan

Answer:

$4(2 + y)$