How to multiply 25 by 5 without using calculator?

Answers

Answer 1

Answer: Hey There

In multiplication you have to know the process of regrouping, which means to take away from tens. Also, you multiply from left to right.

Steps
1. First multiply 5*5=25, the two adds to the product of 5*2

2. Now you have to multiply 5*2=10, now you have to add two because of regrouping, 10+2=12, so you're final answer is 125.

In conlusion, 25*5=125

Hope this helps :)

Answer 2

Answer: 2 5

× 5
___________
1 2 5
____________

1st step: 5 × 5 = 25. Put down 5 . Keep 2 aside.

2nd step: 5 × 2 = 10. 10 plus the 2 kept aside = 12

3rd step : write down 12.

That brings the answer to 125.

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18-6and -18+6 is the same thing

Answers

Answer:

Step-by-step explanation:

18-6=12

-18+6=-12

It is the opposite because rather than subtracting from a positive, you're adding to a negative.

Hope this helps :)

find the volume of the cone shown as a decimal rounded to the nearest tenth hight is 16th and radius is 8 yd?

Answers

$H=16\n\nr=8\n\nV=(1)/(3)\pi r^2H\n\nV=(1)/(3)\pi\cdot8^2\cdot16=(1024)/(3)\pi$

How many solutions exist for the given equation?

1/2
(x + 12) = 4x – 1

Answers

There are two ways to look at this, one is by solving this and the other is by looking at the variable

First, if we want to solve it, we would take our equation, (i like decimals) .5(x+12)=4x-1 and distribute the .5 to both things in the parentheses. when we do that we get .5x+6=4x-1. now we get our variables to the same side by subtracting .5x from both sides. When we do this, we are left with 6=3.5x-1. next we add 1 to each side and get 7=3.5x. Now we divide each side by 3.5, and get x=2. Now we have to plug it into the original equation and get .5(2+12)=4(2)-1. when we simplify this we get .5(14)=7, which goes to 7=7. this is a true statement, so we know that x=2. since we only have one value for x, we know the answer is that only one solution exists.

Another way that is simpler, but not always accurate, is to look at the variable. There can only be as many solutions for x as the highest exponent x is to, in this case, x has no exponent so there can't be more than one solution, so we say that it has one solution. This way is a lot faster, but can be wrong if the equation has a false solution. This false solution happens when you solve the equation and get a value, but it doesn't work for the original equation.

The second way is a lot faster, but the first way will always give you the right answer

Answer:

One solution, option B for edge2020

Step-by-step explanation:

what is the equation in point-slope form of the line passing through (4, 0) and (2, 6)? y = 4x − 2 y = 2x − 4 y = −3(x − 4) y = 3(x 4)

Answers

Equation in point slope form is given by y - y1 = m(x - x1); where m = (y2 - y1)/(x2 - x1).

y - 0 = (6 - 0)/(2 - 4) (x - 4)
y = 6/-2 (x - 4)
y = -3(x - 4)

Answer:b

Step-by-step explanation:

What are the solutions to the equation (x – 6)(x + 8) = 0?x = –6 or x = 8
x = –6 or x = –8
x = 6 or x = –8
x = 6 or x = 8

Answers

x=6 and x=-8

To solve this, you would treat x-6=0 as one equation, you add 6 to each side to get rid of -6, hence you would get x=6.

Same goes for x+8=0, subtract 8 from each side to get rid of the +8, then you get x=-8

The third option mam.

How many terms are in the expression 20x + 9y

Answers

Two terms:

20x and 9y

A Term is either a single number or a variable.

There are 2 terms.

Term 1 : = 20x

Term 2 : = 9y

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4(-2)² + 8(-2) + 3(-2) + 6 =

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