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Mathematics

2 answers:

aleksley [76]3 years ago

8 0

Can you specify please?

Phoenix [80]3 years ago

4 0

I do not understand your question could you please be more descriptive

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A Student with N600 pocket money was spent on the following; Book N50, Pen N80, Maths Set N270, Bag N150, Food N50; the angles t

Vera_Pavlovna [14]

<span>Total pocket money: N600 Spent as follows: Books N50 Pen N80 Maths set N270 Bag N150 Food N50 To find: Angles that pen and food represent on pie chart. Solution: Pie is made on circle, and sum of angles of a circle is 360Â°. Angle that pen represent = (80/600)*360Â° = 48Â° Angle that food represent = (50/600)*360Â° = 30Â°</span>

3 0

3 years ago

A scale drawing of a lake has a scale of 1 cm to 80 m. If the actual width of the lake is 1,000 m, what is the width of the lake

Andreas93 [3]

Answer: 12.5 cm

Step-by-step explanation:

Equation would be:

1:80

?:1000

So you'll just have the cross multiply the equation above to find ? ( scale drawing lake). It'll be 1000*1/80 which will be 12.5 cm.

7 0

3 years ago

The population of a school and is increasing at a rate of 2%per year;6yearsPLEASE HElp <br> Thanks

Shkiper50 [21]

Answer:

It can be modeled with the equation $A=P(1.02)^6$ but needs a starting population number to finish.

Step-by-step explanation:

To find the population in a future year, use the formula:

$A = P (1+/-r)^t$

where A is the amount, p is the starting population, r is 2% or 0.02, and t is the number of years.

Since the population is increasing it is addition. Substitute r=0.02 and t=6. Without a starting population, we cannot find the population in 6 years.

$A = P (1+r)^t\\A=P(1+0.02)^6\\A=P(1.02)^6$