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4 years ago

Use counting rules to find the following probabilities.

Mathematics

1 answer:

lions [1.4K]4 years ago

8 0

Answer:

0.00144

Step-by-step explanation:

(13/1)(4/3)(12/1)(4/2)/(52/5)=(13)(4)(12)(6)/2598960=3744/2598960≈0.00144

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If 40 is decreased by 80%, what is the new amount?

vladimir1956 [14]

Hello Again!

New value =

40 - Percentage decrease =

40 - (80% × 40) =

40 - 80% × 40 =

(1 - 80%) × 40 =

(100% - 80%) × 40 =

20% × 40 =

20 ÷ 100 × 40 =

20 × 40 ÷ 100 =

800 ÷ 100 =

8;
40 decreased by 80% = 8 
Absolute change (actual difference): 8 - 40 = - 32

Hope this Helps! Have A Wonderful Day! :)

7 0

4 years ago

Use a fives fact to help you solve 7x6.

DanielleElmas [232]

Answer:

Step-by-step explanation:

Since 7x5=35, then 7x6=42. This is known as the fives fact rule, and I used it to figure it out.

Hope this helps! :)

3 0

3 years ago

What is the value of x? Please show the steps

nordsb [41]

Let D be the endpoint of the angle bisector opposite A on lying on side BC. The angle bisector theorem states that the ratio of BD to CD is equal to the ratio of AB to AC. In this case, you have

$\dfrac{2x-1}{3x}=\dfrac9{15}$

(This is the same equation that you have, it's just rearranged.)

Multiply both sides by $3x$ and 15.

$15\times3x\times\dfrac{2x-1}{3x}=15\times3x\times\dfrac9{15}$
$15(2x-1)=3x\times9$

Now you can solve for $x$ .

$30x-15=27x$
$3x=15$
$x=5$

6 0

3 years ago

If PX = 56, Find (x - 2)!

coldgirl [10]

Step-by-step explanation:

p (x) =(x-2)

let,

p(x)=(x-2)

56= x-2

56+2 = x

58 = x

then,

x = 58

6 0

4 years ago

43 divided by 4759 and 69 divided by 6267

Goshia [24]

43÷4759=0.0090355117 and 69÷6267=0.0110100527 is your answers

6 0

4 years ago