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3 years ago

Is 8,397 divisible by 9? Why?

1 answer:

7 0

If you divide 8,397 by 9 it gives you get 933 therefor it is divisible because 9 fit into 8397 933 times and it gives you a even number.

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Student Produced Response - Calculator

faltersainse [42]

Answer:

$\dfrac{a}{b}=0.75$ .

Step-by-step explanation:

If two equations $a_1x+b_1y+c_1=0$ and $a_2x+b_2y+c_2=0$ has infinitely many solutions, then

$\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}=\dfrac{c_1}{c_2}$

The given equations are

$ax+by=10$

$3x+4y=20$

It is given that the above system of equations has infinitely many solutions. So,

$\dfrac{a}{3}=\dfrac{b}{4}=\dfrac{10}{20}$

$\dfrac{a}{3}=\dfrac{b}{4}=\dfrac{1}{2}$

Now,

$\dfrac{a}{3}=\dfrac{1}{2}$ and $\dfrac{b}{4}=\dfrac{1}{2}$

$a=\dfrac{3}{2}$ and $b=\dfrac{4}{2}$

$a=1.5$ and $b=2$

So, a=1.5 and b=2.

Now,

$\dfrac{a}{b}=\dfrac{1.5}{2}=0.75$

Therefore, $\dfrac{a}{b}=0.75$ .

5 0

4 years ago

Solve for y. c=5(y+k)

luda_lava [24]

$c=5(y+k)\\\\c=5y+5k\\\\5y=c-5k\\\\y=\dfrac{c-5k}{5}$

7 0

3 years ago

Read 2 more answers

A bookstore carries 48 magazines. 50% of the magazines are women's magazines. How many women's magazines does the bookstore carr

Finger [1]

Answer:

24 women's magazines

Step-by-step explanation:

50% = 0.5

48*0.5=24

3 0

3 years ago

Read 2 more answers

L.c.m of 84 ,27,35,45 please help

den301095 [7]

Answer:

3780

Step-by-step explanation:

84 = 2^2 * 3 * 7

27 = 3^3

35 = 5 * 7

45 = 3^2 * 5

lcm = 2^2 * 3^3 * 5 * 7 = 3780

8 0

3 years ago

Given

babymother [125]

Answer:

f(x) - g(x) = -x⁸ + 8x³ + 5x² - 13

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Algebra I

Combining like terms

Step-by-step explanation:

Step 1: Define

f(x) = -5x⁹ - x⁸ + 3x³ - 8

g(x) = -5x⁹ - 5x³ - 5x² + 5

Step 2: Find f(x) - g(x)

Substitute: f(x) - g(x) = -5x⁹ - x⁸ + 3x³ - 8 - (-5x⁹ - 5x³ - 5x² + 5)
Distribute -1: f(x) - g(x) = -5x⁹ - x⁸ + 3x³ - 8 + 5x⁹ + 5x³ + 5x² - 5
CBT (x⁹): f(x) - g(x) = -x⁸ + 3x³ - 8 + 5x³ + 5x² - 5
CBT (x³): f(x) - g(x) = -x⁸ + 8x³ - 8 + 5x² - 5
CBT (Z): f(x) - g(x) = -x⁸ + 8x³ + 5x² - 13

And we have our final answer!

8 0

3 years ago