3 years ago

I need this on khan academy.

Mathematics

1 answer:

Alja [10]3 years ago

7 0

9514 1404 393

Answer:

A. (1 2/3, 4 2/3)

Step-by-step explanation:

If you graph the equations, you see the lines intersect at the solution point:

(x, y) = (1 2/3, 4 2/3)

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If you apply a scale factor of 5 to the side measuring 8, what will the length of the new side be?

Leona [35]

Answer:

Step-by-step explanation:

The scale factor of 5 to the side measuring 8 means that you multiply that side by the scale factor.

Basically, the equation would go like this:

Original Side Length: x

Scale Factor: y

New Side Length: z

xy=z

If we plug in our numbers, we get:

8*5=z

40=z

5 0

2 years ago

Please fill in the blanks between the numbers with correct math symbols 5_6_15_9=24

vekshin1

Answer:

$5*6-15+9=24\\$

Step-by-step explanation:

To try to solve these problems, you could plug 'n play. If all the blanks are addition, you/ll be > 24

If all the blanks are subtraction, it will be < 0

Multiplication doesn't work for all of them.

I did notice that 15 + 9 = 24, 5*6 = 30, and you get back to 15 if you subtract 15 after multiplying 5 and 6

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3 years ago

What is the value of a3 - b2 for a = 3 and b = ?

Ludmilka [50]

Answer:

$26 \frac{3}{4}$

Step-by-step explanation:

a = 3
$b = \frac{1}{2}$

<h3>Answer</h3>

${a}^{3} - {b}^{2}$

$= {3}^{3} - { \frac{1}{2} }^{2}$

$= 27 - \frac{1}{4}$

$= \frac{107}{4}$

$= 26 \frac{3}{4}$

<h2>sorry if wrong :)</h2>

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3 years ago

The production rate of a steel factory is declining due to old machinery. Over the last eight days production has dropped by 1.2

Marysya12 [62]

Find the unit rate:

-1.2 tons
------------- = -0.15 ton/day, or -3/20 ton/day
8 days

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3 years ago

Read 2 more answers

the radii of two circles are in the ratio of 3 to 1 find the area of the smaller circle if the area of the larger circle is 27

stepan [7]

3 1

3x 27 =

<h2><u>Answer: 81</u></h2>

6 0

3 years ago