3 times a number x, subtracted from 18, is less than−90.

2 answers:

7 0

3x-18 is less than -90
First, you add 18 to both sides of the inequality (getting 3x is less than -72). Then you divide by 3 on both sides giving you your answer x is less than -24

melamori03 [73]3 years ago

5 0

X is greater than 36. to find this you substraction 18 from both sides which leaves you with -3x<-108 then you divide both sides by -3 and when working with inequalities you have to flip the sign whenever you multiply or divide by a negative. so you end up with x>36

You might be interested in

Help me with this math equation.<br><br>

Stells [14]

8/2•m or to simplify 4m

7 0

2 years ago

The volume of a rectangular tank is 20 000 cm3 . Given that the length is 40 cm and width is 25 cm, find its height

olga nikolaevna [1]

<em> $answer \\ 20 \: cm \\ solution \\ volume = 20000 \: {cm}^{3} \\ length = 40 \: cm \\ breadth = 25 \: cm \\ height = \\ now \\ v = l \times b \times h \\ \: \: \: \: \: \: or \: 20000 = 40 \times 25 \times h \\ or \: 20000 = 1000 \times h \\ or \: h = \frac{20000}{1000} \\ h = 20 \: cm \\ hope \: it \: helps$ </em>

5 0

3 years ago

Read 2 more answers

Which of the following is the solution to the equation - n/2 + 14 = 0 ?

poizon [28]

The answer is n=28;

1. Subtract 14 from both sides (-n/2 = -14)

2. Multiply by 2 on both sides to get rid of the fraction (-n = -28)

3. Divide by -1 to get n by itself (n = 28)

You could also eliminate step three by multiplying by -2 instead of just 2.

Hope this helps!

4 0

3 years ago

-1 -5(-2k+ 3) = - 76

Ket [755]

Answer is -6(see photo for step by step):

4 0

3 years ago

Find the area of the rectangle.

Levart [38]

<h2>Multiply 50 * 14 =700 so the answer is <em><u>700</u></em></h2><h2><em>Hope this helps!</em></h2>

6 0

3 years ago

Read 2 more answers