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Anettt [7]
2 years ago
6

1. A school ordered 3 large boxes of board markers. After giving 15 markers to each of 3

Mathematics
1 answer:
Rainbow [258]2 years ago
8 0
There was 45 markers originally in each box.
How do we know?
Well, 3*x = 15*3 + 90 = 45 + 90 = 135
Divide both of the sides by 3
X = 135/3 = 45
Therefore, that’s how we know that there was 45 markers originally.
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A flying disc has has a circumference of 81.64 cm what is the area of the flying disc used 3.14 for pie
katrin [286]

Answer:

530.66 cm squared

Step-by-step explanation:

c = 2(3.14)r

81.64 = 2(3.14)r

Divide both sides by 6.28

The radius is 13

a = 3.14(13 squared)

a = 530.66

8 0
3 years ago
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Which variable is most important to the following problem? At 9:00 a.m., a wind speed of 20 miles per hour was recorded. After t
slavikrds [6]

Answer:

option-C

Step-by-step explanation:

We are given

At 9:00 a.m., a wind speed of 20 miles per hour was recorded

So, initial wind speed =20 miles per hour

Each measurement showed an increase in wind speed of 3 miles per hour

The strongest wind was recorded at 4:00 p.m

so,

top wind speed = initial wind speed + ( total number of hours between 9:00 am and  4:00 pm)*(change in wind speed)

top wind speed = 20 mph+(16-9)*3

=20+7\times 3

=41 miles per hour

Since, change in wind speed and initial wind speed are constant

but the number of hours it took for the wind speed to reach its minimum for the day can be changed

so, most important variables is

the number of hours it took for the wind speed to reach its minimum for the day can be changed

8 0
3 years ago
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In a line of students, Jenna is number 8.The teacher says that a rule for a number pattern is add 4. The first student inline sa
Virty [35]

Answer:

Formula for nth term in Arithmetic sequences is:

a_n =a+(n-1)d

where a is the first term, d is the common difference and n is the number of terms.

As per the statement:

The rule for the pattern is add 4.

As the first term in line says the first term i,e 7

a= 7

common difference(d)= 7

As the Jenna number is 8th in line.

Series we get;

7, 11, .........a_8

We have to find the 8th term.

n = 8, a = 7 and d = 4

Using above formula:

a_8 = 7+(8-1)4 = 7+7 \cdot 4 = 7 +28 = 35

Therefore, 35 number should Jenna say.

3 0
3 years ago
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mr. Williams and mrs.sims drove 380 miles for a school conference. Mrs.sims drove 55% of the miles. What fraction of miles did m
lisov135 [29]
So 55% is really 55/100
You take 100 - 55 to find how much Mr. Williams drove
100 - 55 = 45

So Mr. Williams drove 45/100 of the miles
Simplified is 9/20 of the miles
6 0
3 years ago
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Find all the real fourth roots of 4096​
goldfiish [28.3K]

Answer:

The square root of 4096 is 64. The cube root of 4096 is 16. The fourth root of 4096 is 8 and the fifth root is 5.2780316430916.

Step-by-step explanation:

3 0
3 years ago
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