Mathematics: Write as an algebraic expression and simplify if possible: A number that is 20% greater than b

10, 5, 19Step-by-step explanation:Recall that So we can multiply the fraction by And get...

Write as an algebraic expression and simplify if

tristanart5749

30.01.2022

1.2b

Step-by-step explanation:

When we say, "a number that is 20% greater than b," we're talking about a number that is ...

b + 20%×b

= b + 0.20b

= b(1 + 0.20)

= 1.2b

0,0(0 оценок)

jalenshayewilliams

28.06.2021

10, 5, 19

Step-by-step explanation:

Recall that

${a}^{2} - {b}^{2} = (a + b)(a - b)$

So we can multiply the fraction by

$\frac{2 \sqrt{5} + 1 }{2 \sqrt{5} + 1 }$

And get

$\frac{ \sqrt{5} }{2 \sqrt{5} - 1} \times \frac{2 \sqrt{5} + 1 }{2 \sqrt{5} + 1 } = \frac{10 + \sqrt{5} }{20 - 1} = \frac{10 + \sqrt{5} }{19}$

0,0(0 оценок)