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3 years ago

How many solutions does this system have? X+ 5y = 0 20y = -4x

Mathematics

1 answer:

AysviL [449]3 years ago

4 0

2 have solutionsof each way if

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Evaluate x 3 for x = 2.

solong [7]

If you mean 3x then that would be 6

hope this helps you

6 0

3 years ago

Shelly has a roll of fabric and decides to make some scarves for her friends. The roll contains 623

swat32

Total length of the fabric is $6\frac{2}{3} =\frac{20}{3}$

We need to find the number of scarves can she make if she needs 5/6 of a yard for each scarf.

Let she needs x scarves. So, ATQ

Hence, she can make 8 scarves.

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2 years ago

Big Bob’s Pizza is having a special on pizza and is offering two different choices:

Anna71 [15]

Answer:

The Choice N#1 will give more pizza for your money

Step-by-step explanation:

step 1

Find the area of one slice Choice #1

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=22/2=11\ in$ ----> the radius is half the diameter

assume

$\pi =3.14$

The area of one slice is equal to

$A=(1/8)\pi r^{2}$

substitute

$A=(1/8)(3.14)(11)^{2}$

$A=47.4925\ in^{2}$

Divide the cost by the area

$4.95/47.4925=0.10\frac{\$}{in^{2}}$

step 2

Find the area of the entire personal pizza Choice # 2

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=6/2=3\ in$ ----> the radius is half the diameter

assume

$\pi =3.14$

substitute

$A=(3.14)(3)^{2}$

$A=28.26\ in^{2}$

Divide the cost by the area

$3.75/28.26=0.13\frac{\$}{in^{2}}$

therefore

The Choice N#1 will give more pizza for your money

5 0

3 years ago

What are the constant(s) in the expression 6y+3x-2

Anna71 [15]

Answer:

2 is a contact but 6 and y are not because six is with y and 3 is with x

Step-by-step explanation:

7 0

2 years ago

Marriana buys 3 3/4 feet of rope. How many inches of rope does she buy?

SVEN [57.7K]

Answer:

Step-by-step explanation:

4 0

3 years ago