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AlexFokin [52]
3 years ago
5

Find three consecutive odd integers whose sum is 13 more than twice the largest of the three intergers

Mathematics
1 answer:
Yuki888 [10]3 years ago
4 0

15,17,19 
Suppose the three odd integers are #n#, #n+2# and #n+4# 
Their sum is: 
#n + (n+2) + (n+4) = 3n+6# 
#13# more than twice the largest of the three is: 
#2(n+4)+13 = 2n+21# 
From what we are told these two are equal: 
#3n+6 = 2n+21# 
Subtract #2n+6# from both sides to get: 
#n = 15# 
So the three integers are: 
#15, 17, 19#
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Answer:

80 hours

Step-by-step explanation:

let d represent doug, let l represent laura

first, set up a system of equations representing the problem:

since doug spent 10 less than twice the hours laura did, and we know that the total amount of hours they spent together is 230:

l=2d+10

d+l=230

then solve:

*first i rearranged the equations so i can solve this system of equations using elimination method*

l-2d=10

l+d=230

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3d=240

d=80

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Arla and kal both work in jobs where they get paid by the hour in their first week on the job they each worked 40 hours and toge
valkas [14]

Question is Incomplete;Complete question is given below;

Arla and kal both work in jobs they get paid by the hour in their first week on the job they each worked 40 hours and together there total earnings were $1300 in their second week on the job business was slow so arla worked 20 hours and kal worked 16 hours their total pool earning was $580 what is each persons hourly wage.

Answer:

The hourly wage of Arla is $15 and hourly wage of Kal is $17.5.

Step-by-step explanation:

Let the hourly wage of Arla be 'x'

Also Let the hourly wage of Kal be 'y'

Now Given:

first week on the job they each worked 40 hours and together there total earnings were $1300

So we can say that;

40x+40y=1300   ⇒ equation 1

Also Given:

Number of hours worked by Arla in second week = 20

Number of hours worked by Kal in second week = 16

Total Money earned in second week = $580

So we can say that;

20x+16y=580   ⇒ equation 2

Now Multiplying equation 2 by 2 we get;

2(20x+16y)=580\times2

Applying Distributive property we get;

40x+32y =1160   ⇒ equation 3

Now Subtracting equation 3 from equation 1 we get;

(40x+40y)-(40x+32y)=1300-1160\\\\40x+40y-40x-32y=140\\\\8y=140

Now Dividing both side by 8 we get;

\frac{8y}{8}=\frac{140}{8}\\\\y= \$17.5

Now Substituting the value of y in equation 1 we get;

40x+40y=1300\\\\40x+40\times17.5 =1300\\\\40x+700=1300\\\\40x=1300-700\\\\40x=600\\\\x=\frac{600}{40}\\\\x=\$15

Hence The hourly wage of Arla is $15 and hourly wage of Kal is $17.5.

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Answer:

Step-by-step explanation:

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