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3 years ago

a city police force is made up of 24% females. if there are 72 females on the force how many males are on the force

2 answers:

8 0

Let x be the total number of person in the police force
24/100 × x = 72
x = 72/0.24
Therefore x = 300

The # of males = 300 - 72 = 228

evablogger [386]3 years ago

3 0

Let x be the total of people on the police force 24x=72 Divide both sides by 24 x=300 since there is 300 people on the force and 72 are ladies. We subtract 300-72= 228 So there is 228 male police officers :)

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Step-by-step explanation:

Given: Cost of first hour rent of jet ski is $55

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Assuming the number of additional 15-minutes increment be "x"

Jeremy´s total spending would be first hour rental fees and additional charges for each 15-minutes of jet ski.

Lets put up an expression for total spending of Jeremy.

$\$55+ \$ 10\times x$

We also know that Jeremy can not spend more than $105

∴ Putting up the total spending of Jeremy in an inequality.

$\$ 55+\$10x\leq \$ 105$

Now solving the inequality to find the greatest number of time Jeremy can rent the jet ski,

⇒ $\$ 55+\$10x\leq \$105$

Subtracting both side by 55

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Dividing both side by 10

⇒ $x\leq \frac{50}{10}$

∴ $x\leq 5$

Therefore, Jeremy can rent for $60\ minutes + 5\times 15\\= 60\ minutes + 75= 135\ minutes$

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