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alisha [4.7K]
3 years ago
13

A mystery number rounds to 200 when rounded to nearest hundred. The sum of its ditgits is 10. When rounded to the nearest 10, it

rounds to a number whose digits have a sum of 5. What is the mystery number
Mathematics
1 answer:
9966 [12]3 years ago
7 0

Step-byiioiiiiiioiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

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Emma buys packets of coloured beads.
ryzh [129]

Answer:

purple:5

red:8

blue:4

7 0
3 years ago
12. The table shows the number of people who attended a
Nataly_w [17]

Answer:

1. See the graph attached

2. 13,400 thousands people will attend the new movie on the 8th day, if the pattern shown in the graph continues.

Explanation:

The <em>table </em>that shows the number of people who attend a new movie ofver teh course of a week is:

Day   Attendance (thousands)

1          12,200

3         12,600

5         13,000

7         13,400

8              x

The <em>graph</em> showing that pattern is attached.

It is a discrete graph because days can take only positive integer values.

You can see that the relation is linear and can calculate the change in the number of people every two days by subracting any two consecutive pairs of data:

  • 12,600 - 12,200 = 400
  • 13,000 - 12,600 = 400
  • 13,400 - 13,000 = 400

Hence, every two days the increase in the number of people is 400 thousands.

For one day the increase is: 400 thousands / 2 days = 200 thousands/day.

Since you know the attendance for the day 7, you can calculate the attendance for the day 8 adding 200 thousands to 13,400:

  • 13,400 thousands + 200 thousands = 13,600 thousands.

7 0
2 years ago
Find the difference and reduce to the lowest terms 12 4/9 - 8 5/6 =
butalik [34]

Answer: 3\frac{11}{18}

<u>Turn 12 4/9 into an Improper Fraction</u>

Multiply 12*9 and get 108. Now add 4 and get 112.

12\frac{4}{9} =\frac{112}{9}

<u>Turn 8 5/6 into an Improper Fraction</u>

Multiply 8*6 and get 48. Now add 5 and get  53.

8\frac{5}{6} =53/6

<u>Find Common Denominator</u>

9: 9,18,27,36,45\\6: 6,12,18,24,30\\\CD=18

Your new problem: \frac{112}{18}-\frac{53}{18}

<u>Subtract</u>

<u></u>\frac{112}{18}-\frac{53}{18}=\frac{65}{18}<u></u>

<u></u>

<u>Simplify</u>

<u></u>\frac{65}{18} =3\frac{11}{18}<u></u>

6 0
3 years ago
Read 2 more answers
Amir deposits $325 in a bank account that earns 3% each year. How much will the account have in 5 years? Assume they make no add
Neko [114]

Answer:

C - 376.76

Step-by-step explanation:

each year, multiply the previous year's amount by 1.03 - the 1 because it will be increasing and the .03 because it will be increasing by 3% (.03 = 3% in decimal form)

year 0: 325

year 1 (+3%): 325 x 1.03 = 334.75

year 2 (+3%): 334.75 x 1.03 = 344.79

year 3 (+3%): 344.79 x 1.03 = 355.14

year 4 (+3%): 355.14 x 1.03 = 365.79

year 5 (+3%): 365.79 x 1.03 = <u>376.76</u>

4 0
2 years ago
Rationalise 1/√7-√3<br>PLEASE GIVE ANSWER IT'S URGENT ​
IgorLugansk [536]

\dfrac 1{\sqrt  7- \sqrt 3}\\\\\\=\dfrac{\sqrt 7 + \sqrt 3}{\left ( \sqrt 7 -\sqrt 3\right) \left( \sqrt 7 + \sqrt 3\right)}\\\\\\=\dfrac{\sqrt 7 + \sqrt 3}{\left(\sqrt  7 \right)^2 - \left(\sqrt 3 \right)^2}\\ \\\\=\dfrac{\sqrt 7 + \sqrt 3}{7-3}\\\\\\=\dfrac  14\left(\sqrt 7 + \sqrt 3\right)

5 0
2 years ago
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