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4 years ago

H e l p ? p l e a s e

Mathematics

1 answer:

Bingel [31]4 years ago

6 0

To clear the fractions we multiply both sides by the least common multiple of all the denominators.

1/2 x + 2/3 = 4

Denominators 2 and 3, so multiply both sides by [Answer]: 6

3/4 x + 1 = 5/6

Denoms 4 and 6, LCM=12 Answer: 12

6/7 x - 2/3 = 5/21

LCM(7,3,21)=21 Answer: 21

3/5 + x/2 = 9

LCM(5,2) Answer: 10

25/4 = 6 + 1/2 x

LCM(4,2) Answer: 4

You might be interested in

Find the component form of the vector that represents the velocity of an airplane at the instant its wheels leave the ground, if

vekshin1

Answer:

The component form of the vector that represents the velocity of the airplane is $(74.1 i , \ 11.73j)\ mph$

Step-by-step explanation:

Given;

velocity of the airplane, v = 75 mph

direction of the plane, θ = 9°

The vertical component of the velocity is given by;

$V_y = vsin\theta\\\\V_y = (75)(sin \ 9^0)\\\\V_y = 11.73 \ mph$

The horizontal component of the velocity is given by;

$V_x = vcos \theta\\\\V_x = (75)(cos9^0)\\\\V_x = 74.1 \ mph$

Therefore, the component form of the vector that represents the velocity of the airplane is given as;

$(V_x , \ V_y) = (74.1 , \ 11.73)\ mph$

3 0

3 years ago

34+0+18+26 use properties to find the sum or product please show work I’ll give 20 points the picture is an example of what you

lora16 [44]

6 x 89 is 534
6 x (90 - 1) is 534. BUT you have to subtract 90 from 1 and that's 89. So then you multiply 6 by 89.
6 x 90 is 540 and 6 x 1 is 6. you take 540 subtract 6 and that's 534.
540 - 6 is 534.

8 0

4 years ago

A stack of books is 24 inches high.

JulsSmile [24]

Answer:

Step-by-step explanation:

Let's say n such books make up the stack.

If each book is 3/4 inch thick, it contributes 3/4 to the total height of the stack – 24 inches.

==> number of books × 3/4 = 24

(to get this result add the heights of n such book, and equate it to 24. You'll get something like:

3/4 + 3/4 +. . . . n times = 24

And that's what's meant by 3/4 × n = 24)

==> n × 3/4 = 24

multiply both sides by 4

==> n × 3 = 24 × 4

divide both sides by 3

==> n = (24 × 4)/3

==> n = 8 × 4

==> n = 32

We assumed the number of books to be n.

so the answer is:

32 books, each if height 3/4 inch, are required to build a stack 24 inches high.

4 0

3 years ago

Select the correct answer from each drop-down menu. using the distributive property to factorize the equation 3x2 24x = 0, you g

yKpoI14uk [10]

Using the distributive property to factorize the equation 3x² + 24x = 0, you get 3x(x + 8) = 0 and the solution of the equation is x = -8

<h3>How to factorize the expression?</h3>

The expression is given as:

3x² + 24x = 0

Factor out 3x

3x(x + 8) = 0

Divide both sides by 3x

x + 8 = 0

Subtract 8 from both sides

x = -8

Hence, the solution of the equation is x = -8

Read more about factorized expressions at:

brainly.com/question/7438300

4 0

2 years ago

We learned that multiplying by i produces a 90° counterclockwise rotation about the origin. What do we ned to

Bingel [31]

Answer:

For producing 90° rotation clockwise abut origin we have to multiply with -i

Step-by-step explanation:

We know that when we multiply with i in an number then it will give 90° counterclockwise rotation

We have to find the quantity after which it will produce 90° clockwise rotation

Generally we take counterclockwise as positive angle and clockwise as negative angle

So basically we have to produce -90° angle

For producing 90° rotation clockwise abut origin we have to multiply with -i

6 0

3 years ago