Answer:
1. a. 2,000
2. b. 10 years
3. a. 6.72937
4. d. 9%
Step-by-step explanation:
1. If 58% are boys, the percentage of girls is:
= 100 - 58
= 42%
That means 840 is 42% of the students in class. The students in class are therefore:
= 840 / 42%
= 2,000 students
2. If Birr 300 is invested at 6% per year, the amount in interest it earns per year is:
= 300 * 6%
= Birr 18
To get to Birr 180, it would take:
= 180/18
= 10 years
3. When a number is in percentage that means that it is a fraction with the denominator being 100. The number is decimal will therefore be it divided by 100:
= 672.937/100
= 6.72937
4. The investment accrued Birr 12 out of Birr 400 in 4 months. This means that it increased by:
= 12/400
= 3%
A year can be divided into three by 4 months. This means that the yearly rate is therefore:
= 3% * 3
= 9%
Answer:
V = 192 cm
Step-by-step explanation:
V=3(4^2)(12)/3
simplify to get the answer
The diameter is 8 you have to make it half to get the radius thats how you ge t the 3 for r.
A function associates a value from a set (domain) one and only one value from another set. IE, from the same x value you can have only one y. So pick a ruler and scan each graph parallel to the Y axis. If you touch the blue line in two points, that's not a function.
First add the whole numbers;
5 + 3 = 8
then add the numerators( you could add them cause they have like denominators);
8/12 + 5/12 = (8+5) = 13/12
13/12 = 1 1/2
so your final answer would be: 9 1/2 (I added the whole numbers)
Answer:
x = -23 and -2
Step-by-step explanation:
We can say;
<em>(x + 23) = 0</em>
<em>(2x + 4) = 0</em>
Therefore let's solve the first equation first;
(x + 23) = 0
x + 23 = 0
x = 0 - 23
<u>x = -23</u>
Now let's solve for the second equation;
(2x + 4) = 0
2x + 4 = 0
2x = 0 - 4
2x = -4
x = -4/2
<u>x = -2</u>
Hope this helps!