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3 years ago

X + (-9) + 9 = 8 solve the equation using mental math

Mathematics

1 answer:

Studentka2010 [4]3 years ago

8 0

Answer:

X=8 simplify equation

Step-by-step explanation:

-9+9=0

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Students in a class are divided into 6 equal groups with at least 4 students in each group. how many students in the class? writ

Rashid [163]

There is no upper limit so, so x is greater than or equal to 24 (x ≥ 24)

3 0

3 years ago

john read the first 114 pages of a novel which is 3 pages less than 1/3 of the novel. write the equation

tatyana61 [14]

The equation is:

$114=\frac{p}{3}-3$

And

Total number of pages are 351

Step-by-step explanation:

The equation has to be formed by using the given information.

Let p be the total number of pages in the novel

Then

1/3rd of the p will pe:

$\frac{p}{3}$

Total pages read by John = 114

Then according to the statement

$114=\frac{p}{3}-3$

We can solve the equation to get the total pages of the novel

$114=\frac{p}{3}-3\\Adding\ 3\ on\ both\ sides\\114+3=\frac{p}{3}-3+3\\117=\frac{p}{3}\\Multiplying\ both\ sides\ by\ 3\\3*117 = \frac{p}{3}*3\\p=351$

The equation is:

$114=\frac{p}{3}-3$

And

Total number of pages are 351

Keywords: Linear equation, variable

Learn more about linear variable at:

#LearnwithBrainly

8 0

3 years ago

Someone help? Plz I will give u more points

Rina8888 [55]

Answer:

4.255 ft²

Step-by-step explanation:

the area of the figure =

(2.25 × 1.5)+(1/8 ×3.14× 1.5²)

= 3.375 + 0.88

= 4.255 ft²

6 0

2 years ago

What is 8 divide by 18.88?

yarga [219]

=0.4237288136 ..... 0.423 | 7 +1 ~~ 0.424

7 0

3 years ago

The area of a trapezium shaped field is 480m^2,the distance between two parallel

meriva

Answer:

Area of trapezium = 1/2 * h (a+b)

here, 480= 1/2 *15*(20+b)

(20+b)=960/15

or, b=64-20

therefore, b= 44

.....

Hope u got it...xd

3 0

3 years ago