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mina [271]
3 years ago
13

Describe a real life multiplication situation for which an estimate make sense

Mathematics
1 answer:
Wittaler [7]3 years ago
5 0
So, let's say that I have 3 bills: a 50 dollar bill, a 100 dollar bill and 1 dollar bill.

I need to buy 9 pens for my friends, and each of the pens costs 4.34 dollars.

I want to know if I can just take the 50 dollar bill, since I'm not too comfortable to carry the 100 dollar bill the whole day.

A quick estiate tells me that 10 times 5 is 50, and since both numbers are less, then in fact, 50 dollar bill will be enough!
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You have 24 months left until you graduate and you plan on buying yourself a new $20,000 car on graduation day. If you invest $3
shusha [124]

Answer: No, the money won't be enough to buy the car

Step-by-step explanation:

you plan on buying yourself a new $20,000 car on graduation day and graduation day is 24 months time. If you invest $300 a month for the next 24 months.

The principal amount, p = 300

He is earning 4% a month, it means that it was compounded once in four months. This also means that it was compounded quarterly. So

n = 4

The rate at which the principal was compounded is 4%. So

r = 4/100 = 0.04

It was compounded for a total of 24 months. This is equivalent to 2 years. So

n = 2

The formula for compound interest is

A = P(1+r/n)^nt

A = total amount that would be compounded at the end of n years.

A = 300(1 + (0.04/4)/4)^4×2

A = 300(1 + 0.01)^8

A = 300(1.01)^8

A = $324.857

The total amount at the end of 24 months is below the cost of the car which is $20000. So he won't have enough money to buy the car

3 0
3 years ago
A brother and a sister are in the same math class. there are 8 boys and 10 girls in the class. one boy and one girl are randomly
timama [110]
The best one is 1/9 maybe

5 0
3 years ago
Read 2 more answers
You can run 5 miles in 25 minutes. At this rate, how many miles can you run in 3 hours
kotegsom [21]
Well, if you run 5 miles in 25 minute you run a mile every 5 minutes. So, there is 190 minutes in 3 hours. So we would need to divide 190 by 5 which is 38. So, the person could run 38 miles in 3 hours. 
7 0
2 years ago
Lines l and m are parallel lines cut by the transversal line t. Which angle is congruent to ∠7?
pav-90 [236]

Answer:

<3, <2 or <6

Step-by-step explanation:

6 0
3 years ago
URGENT DUE BY 3:00!
lys-0071 [83]
You can put the 2 circles together to get 1 circle
so basically we just find

area of rectangle taht is 8ft by 18ft
and area of ciecle with disameter of 8


area rectangle=18 times 8=144 square feet

area of ciecle=pir^2
d/2=r, 8/2=4
area=pi4^2=16pi, pi=3.14 so then
50.24


toal is rectangle+circles=144+50.24=194.24 suare feet
rounded
194 square feet
8 0
2 years ago
Read 2 more answers
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