High School

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Susie has 8 pieces of string.

3 pieces are 7.8 inches long, and 5 pieces are 9.2 inches long.

How many inches of string does Susie have altogether?

Answer :

69.4 inches of string does susie have altogether.

What is Addition?

Addition (usually denoted by a plus sign +) is one of the four basic arithmetic operations, the other three being subtraction, multiplication, and division. Adding two integers gives the sum or sum of their values. The example in the adjacent image shows a combination of three apples and two apples, making a total of five apples. This observation is equivalent to the mathematical expression "3 + 2 = 5" (ie "3 plus 2 equals 5").

In addition to counting items, addition can also be defined and performed without reference to specific objects, using instead abstractions called numbers, such as integers, real numbers, and complex numbers. Addition belongs to arithmetic, a branch of mathematics. In algebra, another branch of mathematics, addition can also be performed on abstract objects such as vectors, matrices, subspaces, and subgroups.

Addition has several important properties. It is commutative, which means that the order of the operands does not matter, and it is associative, which means that if you add more than two numbers, the order of addition does not matter (see Addition). Repeated addition of 1 is the same as counting (see successor function). Adding 0 does not change the number. Addition also follows predictable rules for related operations like subtraction and multiplication.

Here given,Susie has 8 pieces of string and 3 pieces are 7.8 inches long ,and 5 pieces are 9.2 inches long.

So,total length of 3 pieces of string [tex] = (3 \times 7.8) = 23.4 \: inches[/tex]

and total length of 5 pieces of string [tex] = (5 \times 9.2) = 46 \: inches[/tex]

So,Susie have altogether (23.4+46) = 69.4 inches string.

Addition related one more question:

https://brainly.com/question/14092461

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Thanks for taking the time to read Susie has 8 pieces of string 3 pieces are 7 8 inches long and 5 pieces are 9 2 inches long How many inches of. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada

Answer:

64.9 inches

Step-by-step explanation:

3 * 7.8 = 23.4

5 * 9.2 = 46

23.4 + 46 = 64.9 inches