3 years ago

Answer this and I’ll make you Brainly if it’s right

Mathematics

1 answer:

svlad2 [7]3 years ago

8 0

Answer:

Step-by-step explanation:

f(x)=7x+6

If you replace 1 for x you get 7, then add 6 and you get 13.

Continue replacing x with the in numbers and you'll see they are all right

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10m +n2 when m =5 and n=4

Harman [31]

Answer:

putting value of m and n in the equation we get

10x5+ 4x2

= 50+8=58

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2 years ago

A rectangular balcony has an area of 32 square feet. its perimeter is 24 feet. what are the dimensions of the balcony?

Paul [167]

Answer:

Step-by-step explanation:

8 ft by 4 ft

8ft x 4ft = 32 ft

8ft + 8 ft = 16 ft 4 ft + 4 ft = 8 ft

16ft + 8 ft = 24 ft

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3 years ago

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mafiozo [28]

Hehe lovely what the

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3 years ago

A coach purchases 47 hats for his players and their families at a total cost of $302. The cost of a small hat is $5.50. A medium

frosja888 [35]

Answer:

The answer is below

Step-by-step explanation:

Let x represent the number of small hat purchased, y represent the number of medium hat purchased and z represent the number of large hat purchased.

Since a total of 47 hats where purchased, hence:

x + y + z = 47 (1)

Also, he spent a total of $302, hence:

5.5x + 6y + 7z = 302 (2)

He purchases three times as many medium hats as small hats, hence:

y = 3x

-x + 3y = 0 (3)

Represent equations 1, 2 and 3 in matrix form gives:

$\left[\begin{array}{ccc}1&1&1\\5.5&6&7\\-3&1&0\end{array}\right] \left[\begin{array}{c}x\\y\\z\end{array}\right] = \left[\begin{array}{c}47\\302\\0\end{array}\right] \\\\\\\\ \left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}1&1&1\\5.5&6&7\\-3&1&0\end{array}\right] ^{-1} \left[\begin{array}{c}47\\302\\0\end{array}\right] \\\\\\ \left[\begin{array}{c}x\\y\\z\end{array}\right] = \left[\begin{array}{c}6\\18\\23\end{array}\right]$

Therefore he purchases 6 small hats, 18 medium hats and 23 large hats

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3 years ago

Four decreased by the product of a number and 7 is equal to 11

Nana76 [90]

Answer:

See image below:)

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers