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FromTheMoon [43]
3 years ago
10

The students are selling cookies at a school fair. Sara is selling three chocolate chip cookies for $2.49.

Mathematics
1 answer:
yan [13]3 years ago
4 0

a)

3 chocolate chip cookies  -    $2.49 .

So 1 chocolate chip cookies  costs 2.49/3=$0.83

b)

1 chocolate chip cookie  costs  $0.83

20 chocolate chip cookies cost 0.83*20=$16.6

Full credits to a Brainley User.

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Under what circumstances would you file form 1040a? form 1040?
dusya [7]
The 1040 can be used by the individual taxpayer to report all worldwide income from all sources plus take care of all of the ather amounts that you would not be able to enter on the 1040 a tax form.
4 0
3 years ago
Mr.Jackson bought 1 3/5 lb.of beef. He cooked 3/4 of it for lunch. How much does he have left
Luda [366]

===> Mr. Jackson bought / . of beef:

===> He cooked / of it for lunch:

Solution ===> Mr Jackson, had 2 / 5 Lbs. left

===> If he cooked / of it for lunch:

===> Mr Jackson, had / of the original amount left.

===> Since ( / )( / )

===> / * /

===> /

Mr Jackson, had / . left.

write the answer as one expression; Then Solve:

( / )( − / )

8 / 5 ( 1 - 3 / 4 )

= 8 / 5 ( 1 / 4 )

= 2 / 5 ( Decimal: 2 / 5 ====> 0.4 )

Answer, 2 / 5 Lbs.; of beef, Mr Jackson, Had left.

Hope that helps!!!!! : )

Hope that Helps!!!! : )

7 0
2 years ago
$3.68÷17= step by step
Mnenie [13.5K]

Three ventilation fans, each working alone, can clear the smoke out of a room in 12 hours, 16 hours, and 24 hours respectively. How long would it...



8 0
3 years ago
3a-4b=12 what does a solve?
leonid [27]

Answer:

a = 4 + -1.333333333b

Step-by-step explanation:

Simplifying

3a + 4b = 12

Solving

3a + 4b = 12

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-4b' to each side of the equation.

3a + 4b + -4b = 12 + -4b

Combine like terms: 4b + -4b = 0

3a + 0 = 12 + -4b

3a = 12 + -4b

Divide each side by '3'.

a = 4 + -1.333333333b

Simplifying

a = 4 + -1.333333333b

8 0
3 years ago
A class consisting of 4 graduate and 12 undergraduate students is random divided into 4 groups of 4. what is the probability tha
MrRissso [65]
Total = 16
Graduates = 4

\frac{4}{16}  =  \frac{1}{4}
\frac{1}{4}  \div 4  \\ =  \frac{1}{4}  \times  \frac{1}{4}  \\  =  \frac{1}{16}
\frac{1}{16}  = 0.0625
Rounding off to 2 decimal places,
Answer is 0.06

Hope this helps. - M
5 0
3 years ago
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