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madreJ [45]
3 years ago
15

justin was trying to figure out how to write the expression 7 less than 'the double of twenty five. help justin write the expres

sion correctly, and then solve.
Mathematics
2 answers:
Amanda [17]3 years ago
7 0
The double of 25 is (25+25), or (25x25). 7 less would be (25+25) -7. Figure out what 25 + 25 is, then subtract 7 from your answer.
vova2212 [387]3 years ago
7 0
25 x 2 -7 = 43.

Hi! The “7 less than” would immediately go to the back because it is subtracting from something. The double means to multiply the 25 times two. You wouldn’t need parenthesis because of the rules of PEMDAS. 50-7 = 43.

Hope this helps!
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It takes Daisy 2 hours to complete her homework from school. how long does it take Daisy to complete her homework in min ______
maksim [4K]

Answer:

120 minutes

Step-by-step explanation:

1 hour = 60 min

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x = 60

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4 0
2 years ago
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In math class, 4 students complete individual surveys to determine the percentage of high school teachers that have a second job
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If your surveys are the following:
A. A survey of 110 teachers showed that 28 of them have a second job. 
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<span>C. A survey of 70 teachers showed that 21 of them have a second job. </span>
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3 0
3 years ago
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Maya has 3 times as many dimes as nickels. She has 4 more quarters than nickels. if she has a total of $9.40, how many of each t
puteri [66]

Answer:  nickels = 14, dimes = 42, quarters = 18

<u>Step-by-step explanation:</u>

Let n represent nickels <em>which has a value of $0.05 </em>

Let d represent dimes <em>which has a value of $0.10</em>

Let q represent quarters <em>which has a value of $0.25</em>

It is given that:

                       n = n

                      d = 3n

                      q = n + 4

and their total value is $9.40    ⇒     n + d + q = $9.40

Use substitution to find the quantity of nickels:

.05(n) + .10(3n) + .25(n + 4) = 9.40

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 5n    +   30n   +  25n + 100 = 940          <em>distributed</em>

                            60n + 100 = 940          <em>added like terms</em>

                            60n           = 840          <em>subtracted 100</em>

                                 n           = 14            <em>divided by 60</em>

n = 14

                d = 3n

                   = 3(14)

                   = 42

                                       q = n + 4

                                          = (14) + 4

                                           = 18

4 0
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Answer: c

Step-by-step explanation:

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a garden table and bench cost $738 combined the garden table costs $88 more than the bench what is the cost of the bench
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Hello 

the answer to this is 

650

becomes we subtract 
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738-88 and we get 650

so we get 

650
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