Exercise B. Answer each problem1. Tommy can exchange 18 dollars for P 810. At th...

Questions

lexieslacayangamarce @lexieslacayangamarce

October 2022 1 0 Report

Exercise B. Answer each problem
1. Tommy can exchange 18 dollars for P 810. At this rate how many dollars can Tommy get
with 27 dollars?
2. Francine can complete 91 oil changes in 7 days. How many oil changes in 11
days?___
3. Lorie is a cashier, She can ring up 24 customers in 18 minutes. At this rate, how many
minutes does it take her to ring up 8 customers?
4. It takes 52 minutes for 5 people to paint 5 walls. How many minutes does it take to 20
people to paint 20 walls?
5. A small robot can travel a distance of 32.5 meters in 13 seconds. What is the average speed
of the small robot?

Answers & Comments

WanderingInBlue

Verified answer

ANG SAGOT!

Pare, alam mo bang ang mga word problem na ito ay halimbawa ng ratio?

Ang ratio ay expression na nagpapaikli ng pariralang "may number na ganito sa bawat number na ganoon" o "number na ganiyan for number na ganito" o "number na ganiyan per number na ganito". In short, nagpapakita ng proportion.

Halimbawa, sa halip na "may limang piso sa bawat $0.07", pwede namang 5 : 0.07.

Karaniwang may colon : sa gitna ng dalawang number ang ratio.

Alalahaning pwedeng maging fraction ang ratio sa pamamagitan lang ng pagpalit ng colon : na magiging fraction bar —.

Halimbawa, 5:7, magiging 5/7.

Ngayon, let's solve na!

>>>>>

1. P1215

$\frac{18}{810} = \frac{27}{ x} \\ 18x = (810)(27) \\ \frac{18x}{18} = \frac{21870}{18} \\ x = 1215$

2. 143 oil changes

$\frac{91}{7} = \frac{x}{11} \\ 7x = (91)(11) \\ \frac{7x}{7} = \frac{1001}{7} \\ x = 143$

3. 6 minutes

$\frac{24}{18} = \frac{8}{x} \\ 24x = (18)(8) \\ \frac{24x}{24} = \frac{144}{24} \\ x = 6$

4. 208 minutes

$\frac{52}{5} = \frac{x}{20} \\ 5x = (52)(20) \\ \frac{5x}{5} = \frac{1040}{5} \\ x = 208$

5. 2.5 m/s

$s = \frac{d}{t} \\ s = \frac{32.5}{13} \\ s = 2.5$

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