All categories

2 years ago

How many two-digit numbers can be made from the following cards?

Mathematics

1 answer:

liraira [26]2 years ago

8 0

Answer:

25 numbers

Step-by-step explanation:

we have five different bases to choose from

(1,2,3,4,5)

$5 {}^{2} = 25$

You might be interested in

A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n indepe

Mila [183]

<h3>Answer: 0.1319</h3>

==========================================

Work Shown:

$P(x) = (_n C_x)*(p)^x*(1-p)^{n-x}\\\\P(14) = (_{15} C_{14})*(0.8)^{14}*(1-0.8)^{15-14}\\\\P(14) = 15*(0.8)^{14}*(0.2)^{1}\\\\P(14) \approx 0.13194139533312 \\\\P(14) \approx \boldsymbol{0.1319} \\\\$

Side note: you can use the nCr formula to compute $_{15} C_{14}$ ; however, it's much quicker to use the shortcut formula $_{n} C_{n-1} = n$ . You can also use Pascal's Triangle to find the value of $_{15} C_{14}$

3 0

2 years ago

chris works as an electrician with the central electric company. he earns $16.25 per hour with time and a half after 40 hours. i

guajiro [1.7K]

($16.25×40)+($16.25×1.5×3)= $650 + 73.13 = $723.13
*regular hrs *overtime hrs
**multiplying the regular wage of $16.25 times 1.5 gives you the overtime, or time and a half, rate.

7 0

3 years ago

There are 4 times as many monkeys as elephants at the zoo. If the totAl number of monkeys and elephants is 35, how many monkeys

Tanya [424]

Let's call the number of elephants x.
x+4x=35
5x=35
x=7
So there are 7 elephants. There are four times as many monkeys.
7×4=28
There are 28 monkeys.

8 0

2 years ago

Read 2 more answers

Rewrite! Write an new and equivalent equation that is easier to solve

Marysya12 [62]

$\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}$

Given - an equation in a standard form

To do - simplify the equation so as to obtain an easier one

Since the equation provided isn't in it's general form , let's first convert it ~

General form of a Linear equation -

$\bold{ax + b = 0}$

The equation after getting converted will be as follows ~

$- 7 + ( \frac{4x + 2}{2} ) = 8 \\ \\ \implies \: \frac{ - 14 + 4x + 2}{2} = 8 \\ \\ \implies \: - 14 + 4x + 2 = 16 \\ \\ \implies \: 4x = 16 + 14 - 2 \\ \\ \implies \: 4x = 28 \\ \\\bold{ General \: form \: \dashrightarrow \: 4x - 28 = 0}$

hope helpful ~

6 0

1 year ago

the double number line shows that in 3 seconds an ostrich can run 63 meters. how far can the ostrich run in 5 seconds

inna [77]

Answer: 105 meters

Step-by-step explanation:

Ostrich's running rate is 63 meters/3 seconds. This can be reduced to 21 meters/second (21 m/s).

(21 m/s)*(5 sec) = 105 meters

5 0

2 years ago