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3 years ago

Is 85 prime or composite

Mathematics

1 answer:

prohojiy [21]3 years ago

6 0

Composite. It is divisible by 5and 17 as well as 185

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7 - 3x = 5x + 13. <br><br> What is x?

eduard

Answer:

x= -3/4 or -0.75

Step-by-step explanation:

1) subtract 7 from both sides which would make it

-3x= 5x+6

2) Subtract 5x from both sides which would make it

-8x-6

3) Divide both sides by -8

which gives you -3/4

7 0

3 years ago

Read 2 more answers

Solve 4x−9y=13 for y.

Irina18 [472]

Answer:

$y = - \frac{13}{9} + \frac{4}{9} x$

Step-by-step explanation:

$4x - 9y = 13$

$4x - 9y - 4x = 13 - 4x$

$- 9y = 13 - 4x$

$y = 9y \div (9) = (13 - 4x) \div ( - 9)$

$y = (13 - 4x) \div( - 9)$

$y = 13 \div ( - 9) - 4x \div ( - 9)$

$y = - 13 \div 9 - 4x \div ( - 9)$

$y = - \frac{13}{9} - 4x \div ( - 9)$

$y = - \frac{13}{9} + 4x \div 9$

$\boxed{\green{y = - \frac{13}{9} + \frac{4}{9} x, x E R}}$

8 0

3 years ago

How to draw a diagram that shows 1/5 times 30 equals 6

Andrew [12]

Multiplying by 1/5 is the same as dividing by 5, so we can show a diagram of division. This can be done by constructing a horizontal line of length 30 cm and dividing it into 5 equal parts; each part will measure 6cm.

6 0

3 years ago

Won has a container with the shape below.

katrin2010 [14]

Answer:

4cm

Step-by-step explanation:

6 0

3 years ago

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The plot below shows the volume of paint left in 444 cans.

yKpoI14uk [10]

The amount of paint that would be contained in each of the can would be 8.

<h3>How to solve for the amount of paint.</h3>

Using the information in the question we have the following

We have to solve the equation as

(2 1/2) + 2(4) + 1(5 1/2) =

2.5 + 8 + 5.5

= 16

Each of these would have to hold 16/2 = 8 pints.