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3 years ago

Can someone give me the correct solution to the inequality of 3x<-21?

Mathematics

2 answers:

Slav-nsk [51]3 years ago

8 0

Answer:

x < -7

Step-by-step explanation:

3x < -21

<u>Step 1: Divide both sides by 3</u>

3x < -21

3x / 3 < -21 / 3

x < -7

Answer: x < -7

levacccp [35]3 years ago

8 0

X < -7 that is your answer

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Your teacher will grade your response for questions 21–23 to ensure you receive proper credit for your answer.

mario62 [17]

Answer:

(a) Arts take longer

(b) By 2/9 hours

Step-by-step explanation:

Given

Arts = four over nine hours

Maths = two over nine hours

Solving (a): Which takes longer?

First, represent both as fraction

$Arts = \frac{4}{9}\ hours$

$Maths = \frac{2}{9}\ hours$

Convert fraction to decimal

$Arts = \frac{4}{9}\ hours$

$Arts = 0.444\ hours$

$Maths = \frac{2}{9}\ hours$

$Maths = 0.222\ hours$

By comparison:

$0.444 > 0.222$

Hence, Arts take longer

Solving (b): How much longer?

To do this, we calculate the difference.

$Difference = Arts - Maths$

$Difference = \frac{4}{9} - \frac{2}{9}$

Take L.C.M

$Difference = \frac{4 - 2}{9}$

$Difference = \frac{2}{9}\ hours$

8 0

3 years ago

A car travels 30 miles in 1/2 hour. What is the average speed at which the car is traveling in miles

Dmitry_Shevchenko [17]

Answer:

the car is traveling 60 miles per hour

Step-by-step explanation:

Since it is going 30 miles in half an hour, we just need to double both values to find the speed for an hour

30*2=60

1/2*2=1

60 miles per hour

hope this helps pls give crown <3

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3 years ago

How do you describe how to turn 2/3 into a decimal.

Dimas [21]

So basically... you divide the 3 to 2 and that's how you get the decimal. The decimal is... 0.666666666667

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matrenka [14]

Answer:

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