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defon
3 years ago
13

ed has $36 to buy paint and brushes for school project. Jars of paint cost $4 each. The paint brushes are $2 each write an equat

ion to determine the combination of brushes and paint he can buy if he bought 3 jars of paint how many brushes can he buy
Mathematics
1 answer:
Sauron [17]3 years ago
8 0
Ok so basically it will be 4 x 3 = 12 which leaves $24 ok then you divide 24 by 2 and you get 12 so the amount of brushes that can be purchased is 12.
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If you apply the linear combination method to the system like:
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A, B, and C are collinear B is between A and C.
mixas84 [53]

Answer:

x = 7

Step-by-step explanation:

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5 0
3 years ago
Help me please with explanation
8_murik_8 [283]

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angle AOB = x+3

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7 0
3 years ago
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
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Answer:

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Step-by-step explanation:

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<u>Volume of a cylinder</u>

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

Given:

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  • 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

<u>Density formula</u>

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

where:

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  • m = mass
  • V = volume

Given:

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  • \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:

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

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