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3 years ago

85+3x-5=180 what does x equal

Mathematics

2 answers:

fiasKO [112]3 years ago

5 0

Answer:

x = 100/3

Step-by-step explanation:

85+3x−5=180

Then we can simplify:

3x+80=180

Subtracting 80 from both sides gives:

3x=100

Dividing both sides by 3 gives our answer:

100/3 or 33 1/3

melisa1 [442]3 years ago

4 0

Answer:

33.3 repeating

Step-by-step explanation:

subtract 5 from 85

85-5+3x=180

80+3x=180

Subtract 80 on both sides

80-80+3x=180-80

3x=100

Divide by three

3x/3 =100/3

Turn it into a decimal

100/3=33.3

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Zander read 13 3/4pages in 1/4 of an hour. Sydney read 43 1/3 pages in 2/3 of an hour. At these rates, would Zander or Sydney re

kakasveta [241]

Answer:

At these rates Sydney read 10 pages per hour more than Zander.

Step-by-step explanation:

Zander read $13\frac{3}{4}$ pages in $\frac{1}{4}$ of an hour.

Therefore, pages read by Zander in 1 hour = $\frac{\text{Total pages read}}{\text{Total time taken}}$

= $\frac{13\frac{3}{4}}{\frac{1}{4}}$

= $\frac{55}{4}\times \frac{4}{1}$

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3 years ago

A shopkeeper sold a dressing table for 7512.75 at a profit of 19*1/4% What was the cost price.

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3 years ago