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inna [77]
3 years ago
10

7cm•5cm•9cm•12cm•4 1/2cm

Mathematics
1 answer:
olchik [2.2K]3 years ago
5 0

i believe the answer is 17,010cm

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Karen had 15 snicker bars. she gave 7 to her brother. what percent did she give away
Mekhanik [1.2K]

Step-by-step explanation:

The way to get this is that you put them in fraction form 7/15 and then you make it equal to to x/100 and then divide the known part of the fraction which in this case is 100/15 which gives 6.67 (rounded). After you get that you multiply it by 7 which give you 46.69%

6 0
2 years ago
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
3 years ago
Determine whether the data in the table can be modeled by a linear equation. Explain.
kotykmax [81]

Answer:

yes, because they're varying in a constante rate

y = -1/2x +3.5

7 0
2 years ago
A cart accelerates at 2 m/s2 when a force of 60 N is applied. What is the mass of the cart? (Formula: F=ma)
shepuryov [24]

Answer: the answer is 30 kg

explanation: I did the the test

6 0
3 years ago
Read 2 more answers
Hari walked 2 miles in 1/2 hour. True or False: Hari walked 1 mile in 15 minutes. Can you please explain.
4vir4ik [10]
2 miles = 1/2 hour (a whole hour is 60 mins so half of that is 30 mins) 1 mile = 15 mins (15 mins is half of 30 mins) so yes its true
5 0
3 years ago
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