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andrey2020 [161]
3 years ago
14

Is the expression 3(x+1 1\2)-3 equivalent to 3x+1 1\2

Mathematics
1 answer:
Ket [755]3 years ago
3 0

Answer:

no

Step-by-step explanation:

first simplify or solve the original expression ( 3(x + 11/2)-3 )

1.  Parenthesis go first so do the 11/2 = 5.5 (x+5.5)

2. Distribute the 3 to the parenthesis (3x + 16.5)

3. subtract 3 from the expression (3x + 13.5)

Compare new equation with 3x + 11/2. Are they the same? (3x+13.5 vs. 3x + 11/2)

They are not the same thing.

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Tanner has 200 baseball cards. Of those, 42% are in mint condition. How many of the cars are in mint condition?
Thepotemich [5.8K]

The number of cars that are in mint condition are = 84

<h3>Number of cars in mint condition</h3>

The number of baseball cards owned by Tanner = 200

The percentage of baseball cards that are in mint condition = 42%

Therefore the number of cars in mint condition

=

\frac{42}{100}  \times  \frac{200}{1}

\frac{8400}{100}

= 84

Therefore, the number of cars that are in mint condition are = 84

Learn more about multiplication here:

brainly.com/question/10873737

3 0
3 years ago
Find the indicated term of the given arithmetic sequence.
Evgen [1.6K]
a_n=a_1+(n-1)d\\\\a_1=45;\ d=-6\\\\a_n=45+(n-1)\cdot(-6)=45-6n+6=51-6n\\\\\boxed{a_n=51-6n}\\\\n=8\\\\a_8=51-6\cdot8=51-48=3\\\\\boxed{a_8=3}\to\fbox{c.}
4 0
3 years ago
Plz help it is a probability question it is soo hard - I have tried and tried
zalisa [80]
I think there's an easy way and a hard way to do this, and I think that the way
I'm about to describe is the easier way.

Probability = (number of successful outcomes)/(total number of possible outcomes)

<em>How many total pairs can be drawn from 8 total pens ?</em>
-- The first one drawn can be any one of 8 pens. For each of these . . .
-- The second one drawn can be any one of the remaining 7 .
-- Total number of ways of drawing a pair = (8 x 7) = 56 ways.
-- But there aren't 56 different different pairs. Whether you draw A and then B,
or B and then A, you wind up with the same pair.  There are 2 different ways to
draw each pair, so the 56 ways of drawing a pair only produces <u>28</u> different pairs.

<u>How many pairs are two of the same color ?</u>

<em>Possible number of blue pairs:</em>
The reasoning is exactly the same as calculating the TOTAL number of
pairs, as explained above.
With 5 blue pens, you can make <u>10</u> different pairs.
AB, AC, AD, AE, BC, BD, BE, CD, CE, and DE.

<em>Possible number of red pairs:</em>
The reasoning is exactly the same as calculating the TOTAL number of
pairs, as explained above.
With 3 red pens, you can make <u>3</u> different pairs.
AB, AC, and BC.

Total number of possible same-color pairs = 10 + 3 = 13

successes / total possible outcomes = 13/28 = <u>46.4</u>%  (rounded)
3 0
3 years ago
It is estimated that there are 22 deaths for every 10 million people who use airplanes. A company that sells flight insurance pr
Alex Ar [27]

Answer:

The insurance company can make $0.78 for each policy that it sells

Step-by-step explanation:

The loss incurred to the insurance company for each death claim is:

L = \$1-\$100,000=-\$99,999

This event has a 22 in 10 million probability of happening.

The gain for the company for each policy not claimed is:

G= \$1

This event has a 9,999,978 in 10 million probability of happening.

The expected value is:

EV =\$1*\frac{9,999,978}{10,000,000} -\$99,999*\frac{22}{10,000,000} \\EV=\$0.78

Therefore, over the long run, the insurance company can make $0.78 for each policy that it sells.

7 0
3 years ago
Please help me pls ASAP thank YOUU
Mama L [17]

Answer:

I think D

Step-by-step explanation:

Sorry if it's wrong, but it's the only one I think makes sense. Brainlist me if u get it right! :)

3 0
3 years ago
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