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3 years ago

A wireless cafe charges $5.40 for 3/4 hour of Internet access. How much does the cafe charge per hour?

1 answer:

5 0

5.40/x=0.75/1

cross multiply:
0.75x=5.40

divide:
0.75x/0.75=5.40/0.75

x=$7.20

just to check:
5.40/3=1.8

1.8*4=7.2

the answer is $7.20 for 1 hour

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Step-by-step explanation:

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2 years ago

A team of scientist surveying a forest found that there were four oak trees for every 10 pine trees. If they counted 24 more pin

Ipatiy [6.2K]

Answer:

There are 16 Oak tree in the forest.

Step-by-step explanation:

Given: There are 4 Oak tree on every 10 pine trees.

There are total 24 more pine tree than Oak tree.

Using the ratio of trees to find the number of trees.

Lets assume there are total number of Oak tree be "x".

∴ Total number of Pine trees will be $"x+24"$

We know the ratio of Oak to Pine tree is 4:10 or $\frac{4}{10}$

⇒ $\frac{x}{x+24} = \frac{4}{10}$

Multiplying both side by $x+24$

⇒ $x= \frac{4(x+24)}{10}$

Using distributive property of multiplication, distributing 4 with x and 24.

⇒ $x= \frac{4x+96}{10}$

Multiplying both side by 10

⇒ $10x= 4x+96$

subtracting both side by 4x

⇒ $6x= 96$

dividing both side by 6

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4 years ago

-24+15-6=x

suter [353]

Answer:

x = -15

Step-by-step explanation:

-24 + 15 - 6 = x

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4 years ago

Read 2 more answers