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Anton [14]
3 years ago
9

What is the value of 1-18 25 if you subtract then add? If you add then subtract?Why is order of operations necessary?

Mathematics
1 answer:
Solnce55 [7]3 years ago
4 0
1-18+25
if u subtract first the answer would be 8
if u add first it would be 42
the order of operations is necessary otherwise we would get different and wrong answers
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Compare. Select &lt;, &gt;, or=.<br> 3.568 ? 3.577
alexira [117]

Answer:

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Step-by-step explanation:

3.568 < 3.577

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Simplify the following expressing. Show your work and explain each step. <br><br> 7-(5-3(2+6(2^2)))
Anon25 [30]

Answer:

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Step-by-step explanation:

7-(5-3(2+6(2^2)))

When a question has multiple signs, the rule of BODMAS is used. That is, Bracket Of Division Multiplication Addition and Subtraction. The question above will therefore be solved in that order.

The first bracket, we have 2^2

That gives 4

Rewriting the question will give

7-(5-3(2+6(4)))

The question in the next bracket will follow

(2+6(4))

In this bracket too, we have the plus sign and the multiplication sign, so the multiplication will first be solved, them addition will follow.

(2+24)

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Rewriting the question again, we have

7-(5-3(26))

And then, we have the last bracket

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But we have both the Subtraction sign and the Multiplication sign in this bracket also, so the multiplication will first be solved, before the Subtraction.

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And lastly we have

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3 years ago
WILL MARK BRAINLIEST!!
Snowcat [4.5K]
15/10 = 18-x/x is the ratio of the larger to the smaller triangle

Cross multiply:
15x = 10(18 - x)
15x = 180 - 10x
25x = 180
x = 7.2

Plug back in to check
15/10 = 1.5

18-7.2/7.2 = 10.8/7.2 = 1.5 :)
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Answer:

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Step-by-step explanation:

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