Algebraic expression for x subtracted from 15

15-x

Step-by-step explanation:

x subtracted from 15 - key word is subtracted from

that means flip it when it is written so it is 15-x

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➷ The algebraic expression for x subtracted from 15 is:

15-x

This is because it says x subtracted from 15, meaning x is taken out of 15.

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TROLLER

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

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step-by-step explanation: