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-Dominant- [34]
3 years ago
8

Write the Number with the same value as 28 tens

Mathematics
1 answer:
zvonat [6]3 years ago
3 0
280 because 28 *10 is 280.
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The manager of a food store noted that for every 20 persons who visit the store, they sell 6 burgers at $2.35 each, 8 aerated dr
marishachu [46]
(2.35*6+1.6*8+2*4)/20=$1.745=$1.8
3 0
2 years ago
Solve the following system of equations by using the elimination method.
mariarad [96]

Answer:

the answer is (6, 1)

Step-by-step explanation:

x² + y² - 12 x - 2 y + 12 = 0

(x²-12x) +(y² -2y) +12 = 0

(x²-2(6)(x)+6²)-6² +(y² -2y+1) -1+12 = 0

(x-6)² +(y-1)² = 5²

the center of a circle is (6, 1)

4 0
3 years ago
A day can be evenly divided into 86,400 periods of 1 second; 43,200 periods of each 2 seconds; or in many other ways. In total,
Leni [432]

Answer:

96 ways

Step-by-step explanation:

Given

Day = 86400\ seconds

Required

Ways to divide it into period of seconds

What this question implies is to determine the total number of factors of 86400

To start with, we determine the prime factorization of 86400

To do this, we continually divide 86400 by 2; when it can not be further divided, we divide by 3, then 7, then 11...

86400/2 = 43200

43200/2=21600

21600/2=10800

10800/2=5400

5400/2= 2700

2700/2 = 1350

1350/2=675

675/3=225

225/3=75

75/3=25

25/5=5

5/5 = 1

This implies that:

86400 = 2^7 * 3^3 * 5^2

The number of factors d is the solved by:

d = (a+1)*(b+1) *(c+1)

Where

n = 2^a * 3^b * 5^c

By comparison:

a = 7

b = 3

c=2

So:

d = (7+1)*(3+1) *(2+1)

d = 8*4 *3

d = 96

<em>Hence, there are 96 total ways</em>

7 0
3 years ago
Alex is 5 feet 6 inches tall. There are 2.54 centimeters in 1 inch. What is Alex’s height in centimeters?
Anna35 [415]
Im not sure about the second one, but for the first one, Alex’s height is 167.64 cm. :)
7 0
3 years ago
A newspaper provided a​ "snapshot" illustrating poll results from 1910 professionals who interview job applicants. The illustrat
Darya [45]

Answer:

confidence level is missing

Step-by-step explanation:

<em>1.confidence level  </em>

The results can be given only in a predetermined confidence level

<em>2. point estimate</em>

The illustration states the estimate 26% of the professionals who interview job applicants said the biggest interview turnoff is that the applicant did not make an effort to learn about the job or the company.

<em>3.sample size</em>

Sample size is given as 1910 people

<em>4.confidence interval </em>

Confidence interval is given ±3 around the point of estimate

3 0
3 years ago
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