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4 years ago

Write 10 1/2 as a decimal number

Mathematics

2 answers:

VikaD [51]4 years ago

7 0

Answer:

10.5

Step-by-step explanation:

1/2 as a decimal is 0.5

so 10 is a whole number so i dont have to change it.

then answer is 10.5

never [62]4 years ago

7 0

Answer:

10.5

Step-by-step explanation:

1/2 as a decimal is 0.5

10 is a whole number so don't change it.

answer is 10.5

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When renting a limo for prom, the number of people varies inversely with the cost per person. Originally there were 12 people an

pashok25 [27]

The answer would be $10.

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3 years ago

How do you solve this equation?

Travka [436]

Exponentail thingies

easy, look at all them them, see that they have 5 in common?
rremember how esay it was to factor
ax^2+bx+c=0

now we have
5^(2x)-6(5^x)+5=0
remember that 5^(2x)=(5^2)^x or (5^x)^2
in other words, we can rewrite it as
1(5^x)^2-6(5^x)+5=0
if yo want, replace 5^x with a and factor
1a^2-6a+5=0
(a-1)(a-5)=0
a=5^x
(5^x-1)(5^x-5)=0
set each to zero

5^x-1=0
5^x=1
take the log₅ of both sides
x=log₅1

5^x-4=0
5^x=4
take the log₅ of both sides
x=log₅4

x=log₅1 and/or log₅4

second quesiton

same thing

1(2^x)-10(2^x)+16=0
factor
(2^x-8)(2^x-2)=0
set each to zero

2^x-8=9
2^x=8
x=3

2^x-2=0
2^x=2
x=1

x=3 or 1

first one
x=log₅1 and/or log₅4
second one
x=1 and/or 3

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3 years ago

A high school drama teacher organizes a musical production

NeX [460]

Yes she does, shes also a great teacher for putting in the work for the production if the play.

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2 years ago

What is 37 divided by 6 in fraction form

kotegsom [21]

Answer:

$\frac{37}{6}$ thats the answer

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3 years ago

Read 2 more answers

(b) As in part (a), how many three-digit phone prefixes are possible that do not start with 0 or 1, but contain 0 or 1 as the mi

Lubov Fominskaja [6]

Answer:

The number of 3-digit phone prefixes that do not start with 0 or 1, but contain 0 or 1 as the middle digit is 160.

Step-by-step explanation:

The phone prefix for any area is of the form X X X.

These prefixes can take values from 0 to 9.

The condition to create a phone prefix is:

The first digit cannot be 0 or 1
The middle digit is either 0 or 1.

The possible number of ways to fill the first place is 8 since 0 or 1 cannot be the first digit.

The possible number of ways to fill the second place is 2 since the middle digit can be occupied by either 0 or 1.

The possible number of ways to fill the last place is 10 since there are no condition applied to the last digit.

Then the number of phone prefixes that can be formed is = $8\times2\times10=160$

Thus, the possible number of phone prefixes possible is 160.

7 0

3 years ago