2 years ago

Explain why you would make one of the addends a tens number when solving an addition problem

1 answer:

5 0

use the term blocks to make your addition problem

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Natali5045456 [20]

Answer:

it is a irrational number

7 0

3 years ago

Fantom [35]

I believe that the answer is 1/5. I hope that this answer helps!<span />

3 0

3 years ago

Vitek1552 [10]

3:4
6:8
9:12

if u either multiply or divide a number from one side, u must do the same calculation to the other side. hope that helps :)

8 0

2 years ago

KATRIN_1 [288]

Answer: The age of the twins is 10 years.

Step-by-step explanation:

Suppose the age of older sister be x

Let the age of twins sister be x-9, as they are born after 9 years.

Product of their ages be

$x(x-9)(x-9)\\\\=x(x^2-18x+81)\\\\=x^3-18x^2+81x$

Sum of their ages will be

$x+x-9+x-9\\\\=3x-18$

According to question,

$1861+3x-18=x^3-18x^2+81x\\\\x^3-18x^2+81x-3x+18-1861=0\\\\x^3-18x^2+78x-1843=0\\\\x=19$

So, Age of older sister will be 19 years.

Age of the twins will be

$19-9=10\ years$

Hence, the age of the twins is 10 years.

3 0

3 years ago

sesenic [268]

Let's use the slope formula!

m = y2 - y1 / (x2 - x1)

m = 6 + 7 / (-3 + 7) = 13/4

3 0

3 years ago