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ozzi
2 years ago
9

Lucy is saving money to buy a game. The game costs $21, and so far she has saved one-third of this cost. How much money has Lucy

saved?
Mathematics
2 answers:
Masteriza [31]2 years ago
6 0

Step-by-step explanation:

one third of $21 is $7 this is your answer

Svetach [21]2 years ago
5 0

Answer:

$7

Step-by-step explanation:

just did 21 divided by three since it says she has saved one third of the $21.

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1/5 of 2 liters...." of " means multiply

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8 0
3 years ago
Dimtry bought a pair of pants at the discounted price of $30. The original price of the pants was $40. What was the percent of t
AVprozaik [17]

Answer:

25%

Step-by-step explanation:

Say we start from the beginning with $40. If the pants are discounted but we don't know the percent discount, then we need a variable, x:

40 - x% * 40 = 30

The total is 40. When we take a discount off of 40, we are taking a percent of 40 and subtracting that from 40. From the problem, this should be 30. Thus, the equation above.

Add x%*40 to both sides and subtract 30 from both sides:

x%*40 = 10

Divide by 40:

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Multiply each side by 100:

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The answer is 25%.

5 0
2 years ago
Counting the number of times a third-grade student leaves his seat without permission during a 30-minute observation period is a
notka56 [123]

Answer:

Behavioral modality of measurement

Step-by-step explanation:

Observing a 3rd grade student for 30 minutes as to how many time he leaves his seat without permission is a clear example of using behavioral modality of measurement.

In this modality of measurement the behavior of the object or system is observed when it is put into action.

This example shows as to what will happen or what is supposed to take place when a 3rd grade student is is seated and observed for 30 minutes. It counts as to how many times he leaves his seat in reaction to his stimulus from the environment.

6 0
3 years ago
Corinne made a deposit of $6,000 into an account with a simple interest rate of 5%. How much interest will be in the account aft
oksian1 [2.3K]

Answer:

$8,864.73

Step-by-step explanation:

Base amount: $6,000.00

Interest Rate: 5% (yearly)

Effective Annual Rate: 5%

Calculation period: 8 years

8 0
3 years ago
X+6=20 so what must X represent to get blank plus 6=20??
Gelneren [198K]

Answer:

14

Step-by-step explanation:

20-6=14

x=14

8 0
3 years ago
Read 2 more answers
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