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2 years ago

10

Definition of order or operations

2 answers:

Nataliya [291]2 years ago

8 0

Order of operations: the rules of which calculation comes first in an expression.

They are: PEMDAS

<span><span>Do everything inside parentheses first: ()
</span><span>then do exponents: x2
</span><span>then do multiplies and divides from left to right
</span><span>lastly do the adds and subtracts from left to right</span></span>

andrew11 [14]2 years ago

8 0

Order of operations is a certain rule found in mathematics. Also known as BODMAS, the order goes Brackets any numbers or operation in brackets,
Of like any power, D for divison, M miultiplication A addition and S subtraction.
You must follow the order, but if there are 2 DM or 2 AS in a row, you can do it from left to right.
Hope it helps :)
Puffin

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3 years ago

110 +0.70x = 50+ 0.90x

timurjin [86]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{x = 300}}}}}$

Step-by-step explanation:

$\sf{110 + 0.70x = 50 + 0.90x}$

Move 0.90x to left hand side and change it's sign

⇒ $\sf{0.70x - 0.90x + 110 = 50}$

Move 110 to right hand side and change it's sign

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Hope I helped!

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5 0

2 years ago

Which triangles are similar? Fast please and show work!

irakobra [83]

here,

Q is the midpoint of PR.

O is the midpoint of PN.

So, the line joining the midpoints of two sides is half and parallel to the third side.

So, QO is parallel to NR.

Now,

in triangles OPQ and NPR,

i) angle OPQ = angle NPR (common angle)

ii) angle POQ = angle PNR (corresponding angles)

iii) angle OQP = angle NRP (corresponding angles)

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2 years ago

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2 years ago

Belinda eats 40 percent of the cake and Graham eats 25 percent of the remainder.

d1i1m1o1n [39]

Answer:

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Step-by-step explanation:

40%+25%=65%

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2 years ago