All categories

3 years ago

How can fact families and multiplication facts help you divide

Mathematics

2 answers:

k0ka [10]3 years ago

6 0

You know ur fact family and multiplication
5x10=50
10x5=50
when it comes to division
50/10=5
u already know the answer

mrs_skeptik [129]3 years ago

5 0

Answer:

Fact families and multiplication helps to divide . In any division problem, we use its divisor and check whether we get the dividend by multiplying a number to divisior.

For example:- Consider a division problem $40\div5$

Here, Dividend= 40 and divisor = 5

Now, search the fact families of 5 which give 40 as an answer, we get

$5\times8=40\ or\ 8\times5=40$

$\\\Rightarrow\ 40\div5=8$

we can check our answer by multiplying divisor to the answer

$5\times8=40$

You might be interested in

Mr John leased two thousand fifty meter square of land from the city administration. He gave one eighth of his land to his broth

slamgirl [31]

Answer:

1793.75 m²

Step-by-step explanation:

Given that :

Total amount of land leased = 2050 m²

Fraction of land given to brother = 1/8

Amount of land given to brother :

1/8 * 2050 = 256.25 m²

Amount of land left :

2050 m² - 256.25 m²

= 1793.75 m²

8 0

3 years ago

Change the subject of the formula L = v 4kt - p to k.

Romashka [77]

Answer:

$\boxed{k = \frac{L^2 + p}{4t}}$

General Formulas and Concepts:

Algebra I

Basic Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Step-by-step explanation:

Step 1: Define

Identify given.

$\displaystyle L = \sqrt{4kt - p}$

Step 2: Solve for k
We can use equality properties to help us rewrite the equation to get k as our subject:

Let's first square both sides:

$\displaystyle\begin{aligned}L = \sqrt{4kt - p} & \rightarrow L^2 = \big( \sqrt{4kt - p} \big) ^2 \\& \rightarrow L^2 = 4kt - p \\\end{aligned}$

Next, add p to both sides:

$\displaystyle\begin{aligned}L = \sqrt{4kt - p} & \rightarrow L^2 = \big( \sqrt{4kt - p} \big) ^2 \\& \rightarrow L^2 = 4kt - p \\& \rightarrow L^2 + p = 4kt \\\end{aligned}$

Next, divide 4t by both sides:

$\displaystyle\begin{aligned}L = \sqrt{4kt - p} & \rightarrow L^2 = \big( \sqrt{4kt - p} \big) ^2 \\& \rightarrow L^2 = 4kt - p \\& \rightarrow L^2 + p = 4kt \\& \rightarrow \frac{L^2 + p}{4t} = k \\\end{aligned}$

We can rewrite the new equation by swapping sides to obtain our final expression:

$\displaystyle\begin{aligned}L = \sqrt{4kt - p} & \rightarrow \boxed{k = \frac{L^2 + p}{4t}}\end{aligned}$

∴ we have changed the subject of the formula.

---

Learn more about Algebra I: brainly.com/question/27698547

---

Topic: Algebra I

6 0

2 years ago

Which of the following are one-dimensional and have infinite length?

e-lub [12.9K]

Answer:

Answer is line and ray.

Step-by-step explanation:

Ray - A ray starts from a point and ends to the infinity.

Therefore, ray is one dimensional and has infinite length.

Point - It is one dimensional but has no length.

Plane - It may be three/two dimensional.

Segment - It is one dimensional but has a limited length.

Line - It's one dimensional with infinite length.

Angle - It's two dimensional structure.

Answer is line and ray.

5 0

3 years ago

the high temperature one day was -1°f. The low temperature was-5°f. What was the difference between the high and low temperature

Kazeer [188]

The answer is 4.

Hope this helps you!

3 0

3 years ago

Write a ratio for boys to girls if there are 22

Natali [406]

Answer:

10: 12, 5: 6, 5/6, 10/12

Step-by-step explanation:

4 0

3 years ago