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yawa3891 [41]
2 years ago
14

A survey determined that 39% of the students at Lake Middle like math. There were 400 students in the cafeteria on Thursday. Wha

t is a good estimate for the number of students in the cafeteria who like math?​
Mathematics
1 answer:
anygoal [31]2 years ago
3 0

Answer:

math organization and the other one day is the best way to get a runner up

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Two teachers purchase supplies for their classrooms.
inna [77]

Answer:

Cost of One Journal =  $3.99

Cost of One pen =  $0.59

Step-by-step explanation:

Let

Cost of One Journal = x

Cost of One pen = y

We can make equation from given statements.

Mr. Bowden purchases 18 journals and 40 pencils for $95.42.

18x+40y=95.42

Ms. Jacinto purchases 11 journals and 16 pencils for $53.33.

11x+16y=53.33

Now solving these equations to find the value of x

18x+40y=95.42--eq(1)\\11x+16y=53.33--eq(2)

Multiply eq(1) with 2 and eq(2) with 5

36x+80y=190.84\\55x+80y=266.65\\-\:\:\:\:-\:\:\:\;\:\:\:\:\:\:\:-\\---------\\-19x=-75.81\\x=\frac{-75.81}{-19}\\x=3.99\\

We get the value of x is: x=3.99

Now, putting value of x in equation 1 to find value of y.

18x+40y=95.42\\18(3.99)+40y=95.42\\71.82+40y=95.42\\40y=95.42-71.82\\40y=23.6\\y=\frac{23.6}{40}\\y= 0.59

So, we get the value of y: y = 0.59

Now, finding the costs:

Cost of One Journal = x = $3.99

Cost of One pen = y = $0.59

7 0
2 years ago
Aaliyah needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer fo
Fofino [41]

Answer:

Equation: (441-66)divide by 3

91

Step-by-step explanation:

441-66=275

275/ 3=91.6666 repeat

8 0
2 years ago
Did I get this right? If I did t could someone explain it to me
Kisachek [45]

Answer:

Yes, you are correct.

Step-by-step explanation:

3 0
2 years ago
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Expand the expression using the Distributive Property. <br> Expression: 2 (q-9)
Sveta_85 [38]

Answer:

2q-18

Step-by-step explanation:

3 0
3 years ago
5 + 4 + 2 (-3) +7+(-5)
kirza4 [7]

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

Let's Solve!

Step-by-step explanation:

5 + 4 + 2(-3) + 7 + (-5)

\__/     \__/  

 9     + (-6) + 7 +  (-5)

              |_______|

 9     + (-11) + 7

  |________|

    16 + (-11)

<em>      </em>|____|

         5

<em />

<em>Your answer is bolded.</em>

<em>I hope this helps!</em>

3 0
3 years ago
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