Find the value of when and .
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Algebra Toolkit
Find the value of when and .
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Work out the value of when and
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Sofia is trying to simplify
Her method is
divide by
then
add
Evaluate her method.
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Use the formula .
Calculate when = 5, = 10 and = 3.
= ..............
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Calculate when and .
= ................................................
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Find the value of when and
................................................
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.
Find the value of y when , and .
..............................................
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The body mass index, , for a person of mass kg and height metres is given by the formula
Usman has a mass of 50 kg.
He has a height of 1.57 m.
Work out Usman's body mass index.
Give your answer correct to one decimal place.
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Tom's height is 1.80m.
He wants his body mass index to be 21
Work out the mass that will give Tom a body mass index of 21.
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Work out the value of .
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Work out the value of
Write down all the figures on your calculator display.
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Work out the value of when
...................................................
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Find the value of when
.........................................
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Find the value of when and .
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Find the value of when and .
= ..............................................
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Find when
Give your answer in standard form, correct to 4 significant figures.
= ....................................................
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Work out the value of when
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and are positive values.
Show that always simplifies to the same value.
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Amy has beads.
Billy has three more beads than Amy.
Carly has four times as many beads as Billy.
Circle the expression for the number of beads that Carly has.
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