All categories

2 years ago

1. 81 1/2 x 27 1/3 2. 32x = 729

Mathematics

1 answer:

stepan [7]2 years ago

3 0

Answer:

Step-by-step explanation:

1. 1.811/2=3.622 271/3=813

3.622*813=2,944.686

this is number one

2. 32x=729

divide both sides by 32

32x=729/32=

22.78125 approximate=22.8 or 23

You might be interested in

3x-12+10=8-2x what does x equal?

nikitadnepr [17]

X=2 because first you have to combine like terms. Than you have to bring the Varible on one side. Finally you solve for the Varible and you get the answer2.

5 0

3 years ago

Read 2 more answers

A student earns $11.75 per hour for gardening. if she worked 21 hours this month, then how much did she earn? show work

ankoles [38]

Answer:

$246.75

Step-by-step explanation:

A student earns $11.75 for 1 hour

If she works for 21 hours this month then the total amount earned can be calculated as follows

= 11.75 × 21

= 246.75

Hence the total amount earned this month is $246.75

4 0

2 years ago

What is the MODE of the data - (12, 8, 6, 12, 16, 12) *<br><br> help plsssss

Nostrana [21]

Answer: Mode = 12

Explanation: The mode is the most frequent value, so it is the value that shows up the most. In this case, that would be the value "12" since it shows up three times (while the other values only show up once).

7 0

2 years ago

Read 2 more answers

Prove that two non-zero vectors are collinear if and only if one vector is a scalar multiple of the other.

erastovalidia [21]

The Prove that two non-zero vectors are collinear if and only if one vector is a scalar multiple of the other is given below.

<h3>What are the proves?</h3>

1. To know collinear vectors:

∧ ⁻a ║ ⁻a

If ⁻b = ∧ ⁻a

then |⁻b| = |∧ ⁻a|

So one can say that line ⁻b and ⁻a are collinear.

2. If ⁻a and ⁻b are collinear

Assuming |b| length is 'μ' times of |⁻a |

Then | 'μ' ⁻a| = | 'μ' ⁻a|

So ⁻b = 'μ' ⁻a

Learn more about vectors from

brainly.com/question/25705666

#SPJ1

3 0

2 years ago

Keiko has seven colors of lanyard. She uses three different colors to make a keychain. How many different combinations can she c

AleksAgata [21]

Combination = doesn't matter what order
Permutation = order matters

There are <u>two</u> methods to work out combinations.

Method 1 List out possibilities
123 124 125 126 127 134 135 136 137 145 146 147 156 157 167
234 235 236 237 245 246 247 256 257 267
345 346 347 356 357 367
456 457 467
567

For a total of 35 combinations.

Method 2 Use a formula.
It's a rather complicated one, so only use it if you have a lot of possibilities.

$\frac{n!}{r!(n-r)!} = \frac{7!}{3!(7-3)!} = \frac{7!}{3!*4!} = \frac{7*6*5*4*3*2*1}{3*2*1*4*3*2*1} = \frac{7*6*5}{3*2*1}=\frac{210}6=35$

(n is the number of choices, r is the amount you choose, and ! is a function that multiplies together all numbers down to 1)

7 0

3 years ago