PLEASSEEEE HELP W THIS QUESTION!!!!

Mathematics

2 answers:

vladimir2022 [97]3 years ago

6 0

The tree is 15 feet.

For every foot, there is a 1.4 foot shadow.

5 • 1.4 = 7

28 - 7 = 21

21 ÷ 1.4 = 15

You can also:

5 ÷ 7 = 0.714285714285714

0.714285714285714 • 21 = 15

brilliants [131]3 years ago

3 0

X/28 = 5/7
x = 28 * 5 / 7
x = 20

answer
x = 20 ft

You might be interested in

Evaluate the expression when f = 4.16/f

astraxan [27]

9514 1404 393

Answer:

Step-by-step explanation:

Maybe you want the value of 16/f when f=4. Put the value of f where f is and do the arithmetic.

$\dfrac{16}{f}=\dfrac{16}{4}=\boxed{4}$

5 0

3 years ago

Which is the simplified rational expression for r2-4r+5/r-4

Sliva [168]

Step-by-step explanation:

$\frac{ {r}^{2} - 4r + 5}{r - 4} - \frac{ {r}^{2} + 2r - 8}{r - 4} \\ = \frac{ ({r}^{2} - 4r + 5) - ( {r}^{2} + 2r - 8) }{r + 4} \\ = \frac{ {r}^{2} - {r}^{2} - 4r - 2r + 5 - 8 }{r - 4} \\ = \frac{ - 6r - 3}{r - 4}$