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gtnhenbr [62]
3 years ago
6

[[((3^3 - 7) • 5)/10] + ((1 + 3 + 6 + 9) - 10)]

Mathematics
1 answer:
Gekata [30.6K]3 years ago
7 0

Answer: 19

Step-by-step explanation:

3^3=27, 27-7=20, 20·5=100, 100/10=10.

1+3=4, 4+6=10, 10+9=19, 19-10=9.

10+9=19.

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5% of the toddlers in a preschool class drink water with their lunch. How many toddlers are in the class if 3 drink water with t
OLga [1]

Answer:

<u>There are 60 toddlers in the preschool class</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

Percentage of the toddlers in a preschool class drink water with their lunch = 5

Number of the toddlers in a preschool class drink water with their lunch = 3

2.  How many toddlers are in the class?

We'll solve the question, using the Direct Rule of Three, this way:

Percentage      Toddlers

      5                       3

    100                     x

*******************************

5x = 3 *100

5x = 300

x = 300/5

x = 60

<u>There are 60 toddlers in the preschool class</u>

6 0
3 years ago
Steve built a square hamster pen that has a perimeter of 240 centimeters What is the length of one side of Steve’s hamster pen?
natka813 [3]

Answer:

60

Step-by-step explanation:

since its a square, and has four sides then you would divide total length by four to find the length of each side

5 0
3 years ago
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Answer:

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Step-by-step explanation:

7 0
3 years ago
The half-life of the radioactive element unobtanium-43 is 10 seconds. If 48 grams of unobtanium-43 are initially present, how ma
natka813 [3]

Answer:

At time, 10 seconds, the mass remaining is 24 grams

At time, 20 seconds, the mass remaining is 12 grams

At time, 30 seconds, the mass remaining is 6 grams

At time, 40 seconds, the mass remaining is 3 grams

At time, 50 seconds, the mass remaining is 1.5 grams

Step-by-step explanation:

Given;

initial mass of the radioactive element  = 48 grams

half life, t = 10 seconds

time of decay (s)                          remaining mass of the  radioactive element

0 ------------------------------------------------- 48 grams

10------------------------------------------------- 24 grams

20 ------------------------------------------------- 12 grams

30 -------------------------------------------------- 6 grams

40 --------------------------------------------------- 3 grams

50 ----------------------------------------------------- 1.5 grams

60------------------------------------------------------0.75 grams

Thus;

At time, 10 seconds, the mass remaining is 24 grams

At time, 20 seconds, the mass remaining is 12 grams

At time, 30 seconds, the mass remaining is 6 grams

At time, 40 seconds, the mass remaining is 3 grams

At time, 50 seconds, the mass remaining is 1.5 grams

7 0
3 years ago
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cestrela7 [59]
4 packs of bottled water (35*4=140)
7 packs of candy bars (20*7=140)
8 0
3 years ago
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