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3 years ago

EMERGENCY!!!! 15-26 Please slove all of them it’s due tomorrow

Mathematics

1 answer:

DanielleElmas [232]3 years ago

5 0

I don’t have the time to do this, but there is a app called Socratic where you can take a pic of your homework and it searches everything on google.

That’s how I got Brainly

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Adding to "undo" subtraction and subtracting to "undo" addition are both examples of using inverse operations to solve equations

Andrews [41]

Answer:

see below

Step-by-step explanation:

Multiplication and division are also inverse operations

15 * 10 = 150

150 ÷10 = 15

Divide 150 by 10 and we get 15 back

The division undoes the multiplication

This also works in reverse

150 ÷ 10 = 15

15*10 =150

The multiplication undoes the division

5 0

3 years ago

solve the equation for x. show each step of the solution. name the justification for each step of the solution 9/2 (8-x) +36=102

Karo-lina-s [1.5K]

1. You have the following equation:

$\frac{9}{2}(8-x)+36=102-\frac{5}{2} (3x+24)$

2. First, you must apply the Distributive property:

$\frac{72}{2}-\frac{9x}{2}+36=102-\frac{15x}{2}-\frac{120}{2}$

3. Simplify:

$36}-\frac{9x}{2}+36=102-\frac{15x}{2}-60$

3. Add the like terms:

$-\frac{9x}{2}+\frac{15x}{2}=102-60-36-36\\ 3x=-30$

4. Solve for $x$ :

$x=-\frac{30}{3} \\ x=-10$

Therefore, the answer is: $x=-10$

3 0

3 years ago

Jan wants to protect the wooden box in question 4a by painting varnish on all of the outside surfaces, including the bottom. Wil

Dafna1 [17]

Answer:

As this question is incomplete, but we will try to solve this question by adding our own data to understand the concept of the problem.

Explanation is given below

Step-by-step explanation:

As this question is incomplete, but we will try to solve this question by adding our own data to understand the concept of the problem.

In order to answer this question we need to have the dimensions of the box.

Let's suppose there are 6 outside surfaces of the box and are equal in dimension including the bottom side which Jan wants to varnish.

So,

Let's suppose,

Surface area of the cube = 6 $a^{2}$

Here, Surface area = 275 square inch

Surface area of the cube = 6 $a^{2}$ = 275 square inch

$a^{2}$ = 275/6 = 45.833

a = $\sqrt{45.833}$

a = 6.77 inches

Now, for the amount of the varnish, we need the spreading rate of the varnish to be used on the box,

Let's suppose it is = 11 square incher per litre.

So,

Required Varnish = Surface area / Spreading rate

Required varnish = 275 / 11

Required varnish = 25 liters

If the 1 container of varnish contains 25 liters then it will be sufficient to protest the outside surfaces of the box.

6 0

3 years ago

One card is selected at random from a deck of card. Determine the probability that the card selected is not a 4

Ganezh [65]

Answer:

12/13

Step-by-step explanation:

A probability is the number of desired outcomes over the total number of outcomes.

Assuming that this is a standard deck of playing cards, there will be 52 cards, and there will be 4 "4" cards.

First, find the number of desired outcomes, and put it over the total number of outcomes.

Out of the total number of outcomes (52), there are 4 outcomes that are not wanted, hence the equation is:

52 - 4 = 48

So out of the 52 possible outcomes, 48 are desired. Set up the fraction and

simplify:

48/52

/4 /4

= 12/13

7 0

3 years ago

What is the median number of 4,8,10,5,9

Nady [450]

The answer is 10. because median means middle so 10 is the middle #.

5 0

3 years ago

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