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zimovet [89]
3 years ago
13

A box is 12 centimeters wide ,12 centimeters long, and 15 centimeters tall. What is the total surface area of 4 such boxes?

Mathematics
1 answer:
Grace [21]3 years ago
4 0
First you want to find the surface area of one box
SA=2(l*w)+2(h*l)+2(h*w)
SA=2(12*12)+2(15*12)+2(15*12)
SA=2(144)+2(180)+2(180)
SA=288+360+360
SA=1008 cm² is for one box
Multiply by 4 to get for 4 boxes
4*1008=4032 cm²
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Please solve x(2+2)+5x-12=x(4+4)-2
ladessa [460]

Answer:

x = 10

Step-by-step explanation:

x(2+2)+5x-12=x(4+4)-2 \\ x(4) + 5x - 12 = x(8)  - 2 \\ 4x + 5x - 12 = 8x - 2 \\ 9x - 12 = 8x - 2 \\ 9x - 8x = 12 - 2 \\ x = 10

4 0
3 years ago
The following price reductions are available
Juli2301 [7.4K]
Let's use 50 cents as the price of the item
Two for the price of one = $.50 for two (or $.25 each)
Three for the price of two = $1.00 for 3 or  approximately $.33 each
Buy one get 25% off the 2nd means $.50 + (.125 which is 25% of $.50) for a total of $.625 or about $.63 ($.315 or about $.32 each)
Buy Two get 50% off the 2nd means $.50 for the first and $.25 for the 2nd for a total of $.75 or $.375 - about $.38 each

We can see that two for the price of one is the best value since you save $.25 off of $.50 (that's half)  and that buy two get 50% off the 2nd is the smallest price reduction since the $.50 item only goes down to $.38 or twelve cents off.
This would work no matter what the cost of the item. The savings would still be in the same proportions.
4 0
3 years ago
there are 104 red candies in a candy machine. this represents 26% of the candy in the machine. how many total are in the candy m
Alborosie

There are 400 candies in the machine.

Step-by-step explanation:

Given,

Number of red candies in machine = 104

This represents 26% of the total candies.

Let,

x be the total candies in the machine.

According to statement;

26% of x = 104

\frac{26}{100}*x=104\\0.26x=104

Dividing both sides by 0.26

\frac{0.26x}{0.26}=\frac{104}{0.26}\\x=400

There are 400 candies in the machine.

Keywords: percentage, division

Learn more about percentages at:

  • brainly.com/question/317697
  • brainly.com/question/317616

#LearnwithBrainly

6 0
4 years ago
Please help me need a lot of help
Zina [86]
This is what i would do i would do this is every student has 40 then 1 student has 40 then he gets a movie ticket so 40 - 5 = 35 then he buys candy for 7.50 so 35 - 7.50 = 27.5 then buys a 2 dollar trolley ride so 27.5 - 2 = 25.5 so every student was left with 25 dollars and 5 cents
5 0
3 years ago
Read 2 more answers
Greg invests $500 in a savings account that earns 4% simple interest annually. If he does not make any additional deposits or wi
labwork [276]

Answer: 100

Step-by-step explanation: because I just got a 10/10

4 0
3 years ago
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