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3 years ago

I need your help Brainly Users, please! help me ?!

Mathematics

2 answers:

olasank [31]3 years ago

8 0

The slope is 10. For every 1 increase in x, y increases by 10.

lana [24]3 years ago

3 0

Slope: change in y/ change in x
take any two points and subtract the ys and the xs

-20-(-10)/0-1= 10

c

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snow_lady [41]

3x+2=5x-8 so 2x=10 therefore the answer is x=5

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3 years ago

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Cerrena [4.2K]

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3 years ago

A 16\dfrac1216 2 1 ? kilometer stretch of road needs repairs. Workers can repair 2\dfrac142 4 1 ? kilometer of road per week. Ho

olganol [36]

Answer:

$7\frac{1}{3}$ weeks.

Step-by-step explanation:

We have been given that a $16\frac{1}{2}$ km stretch of road needs repairs. Workers can repair $2\frac{1}{4}$ kilometer of road per week.

To find the number of weeks it will take to repair the stretch we will divide $16\frac{1}{2}$ by $2\frac{1}{4}$

$\text{Number of weeks it will take to repair the stretch of road}=16\frac{1}{2}\div 2\frac{1}{4}$

Upon converting our mixed fractions into improper fractions we will get,

$\text{Number of weeks it will take to repair the stretch of road}=\frac{33}{2}\div \frac{9}{4}$

Dividing a fraction with another fraction is same as multiplying the 1st fraction with the reciprocal of second fraction.

$\text{Number of weeks it will take to repair the stretch of road}=\frac{33}{2}\times \frac{4}{9}$

$\text{Number of weeks it will take to repair the stretch of road}=\frac{33*2}{9}$

$\text{Number of weeks it will take to repair the stretch of road}=\frac{11*2}{3}$

$\text{Number of weeks it will take to repair the stretch of road}=\frac{22}{3}$

$\text{Number of weeks it will take to repair the stretch of road}=7\frac{1}{3}$

Therefore, it will take $7\frac{1}{3}$ weeks to repair the stretch of the road.

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3 years ago

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Vedmedyk [2.9K]

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The answer is D.

Step-by-step explanation:

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Anit [1.1K]

Answer:1

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