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vodomira [7]
3 years ago
13

Janie and David made two different kinds of cookies. The first recipe 1// cup sugar, while the second recipe uses 3/4 cup of sug

ar. They wanted to make 3 batches of each kind of cookie. The sugar canister was half full when they started using it. Now it has 2 1/4 cups left in it. How many cups does the canister hold when it is full?
Mathematics
1 answer:
Finger [1]3 years ago
8 0

Answer:

8 cups

Step-by-step explanation:

So say the canister hold x when it's full. Half is 0.5x

he used 1 + 0.75 = 1.75

Subtract that from 0.5x and get an equation:

0.5x - 1.75 = 2.25

0.5x = 4

x = 8

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8 0
3 years ago
a catering service offers 6 appetizers, 10 main courses, and 8 desserts. A banquet committee is to select 2 appetizers, 3 main c
S_A_V [24]

There are two different answers that you could be looking for.
You might be asking how many different meals can be served at the banquet,
or you might be asking literally how many 'ways' there are to put meals together.

I'm going to answer both questions.  Here's how to understand the difference:

Say you have ten stones, and you tell me "I'll let you pick out two stones
and take them home.  How many ways can this be done ?"

For my first choice, I can pick any one of 10 stones.  For each of those . . .
I can pick any one of the 9 remaining stones for my second choice.
So the total number of 'ways' to pick out two stones is  (10 x 9) = 90 ways.

But let's look at 2 of those ways:
   -- If I pick stone-A first and then pick stone-G, I go home with 'A' and 'G'.
   -- If I pick stone-G first and then pick stone-A, I still go home with 'A' and 'G'.
There are two possible ways to pick the same pair.
In fact, there are two possible ways to pick <em><u>every</u></em> pair.
So there are 90 <em><u>ways</u></em> to pick a pair, but only 45 different pairs.

That's the reason for the difference between the number of <em><u>ways</u></em> the
committee can make their selections, and the number of different <em><u>meals</u></em>
they can put together for the banquet.

So now here's the answer to the question:

-- Two appetizers can be selected in (6 x 5) = 30 ways.
(But each pair can be selected in 2 of those ways,
so there are only 15 possible different pairs.)

-- Three main courses can be selected in (10 x 9 x 8) = 720 ways.
(But each trio can be selected in 3*2=6 of those ways,
so there are only 120 possible different trios.)

-- Two desserts can be selected in (8 x 7) = 56 ways.
(But each pair of them can be selected in 2 of those ways,
so there are only 28 possible different pairs.)

-- The whole line-up can be selected in (30 x 720 x 56) = <em>1,209,600 ways</em>.

But the number of different meals will be  (30 x 720 x 56) / (2 x 6 x 2) =

                                                                   (15 x 120 x 28) =  <em><u>50,400 meals</u></em>.



5 0
4 years ago
License plates in a particular state consist of 4 digits followed by 2 uppercase letters
zubka84 [21]

Answer:

2,620,800  license plates can there be in this state if the first digit cannot be 2, and repetition of letters and numbers is not permitted.

Step-by-step explanation:

Here the licence plate has 4 numbers and 2 uppercase letters.

Given: The first two numbers CANNOT be 2.

           Repetition in NOT permitted.

Now, according to the question:

The available options in the first number = Any number other then 2

= <u>9 options.</u>

The available options in the Second  number = Any number other then 2  and the first number as  Repetition in NOT permitted.

= <u>8 options.</u>

The available options in the Third  number = Any number other then first     and second  number as  Repetition in NOT permitted.

= <u>8 options</u>

The available options in the Fourth number = Any number other then first     second and third number as  Repetition in NOT permitted.

= <u>7 options</u>

The available options in the Fifth place Alphabet =<u> 26 options</u>

The available options in the Fifth place Alphabet = Any number other then first alphabet  Repetition in NOT permitted.

<u>= 25 options</u>

<u />

So, the total number of options =   PRODUCT OF ALL POSSIBLE OPTIONS

= 9 x 8  x 8 x 7 x 26 x 25

= 2,620,800 options.

Hence, 2,620,800  license plates can there be in this state if the first digit cannot be 2, and repetition of letters and numbers is not permitted.

4 0
4 years ago
HELP I WILL GIVE BRAINLIEST Which choice is equivalent to the quotient below the square root of 12 over 2 square root of 2
mixas84 [53]

It would be the last option

3 0
3 years ago
Jonah has a large collection of marbles he notices that if he borrows five marbles from a from a friend he can arrange the marbl
olga nikolaevna [1]

Answer:

The remainder is 8

Step-by-step explanation:

Let Jonah's Marble=x

If he arranges x marbles into y rows of 13 each, and there are remainders(R)

Then:

x/13=y+(R/13).....(I)

If he borrows 5 marbles from a friend, there will be no remainder. However, the number of rows y, will be increased by 1

New Total Marbles=x+5

(x+5)/13=y+1.....(ii)

x+5=13(y+1)

x=13y+13-5

x=13y+8

From (I)

x=13y+R

Comparing the values of x derived from (I) and (ii)

13y+R=13y+8

Therefore the Remainder, R= 8

5 0
4 years ago
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