2 years ago

Answer Please............

Mathematics

1 answer:

erik [133]2 years ago

6 0

90 is the right answer

You might be interested in

What's 17⁄12 as a mixed number? A. 1 5⁄12 B. 1 12⁄7 C. 1 7⁄12 D. 7 1⁄2

Tju [1.3M]

Answer:

Step-by-step explanation:

17 / 12

(12 + 5) / 12

12/12 + 5/12

1 5/12

8 0

3 years ago

A floor is made up of 20 triangular tiles, each with sides 40 cm, 24 cm and 32 cm. Find the cost of polishing the floor at the r

pochemuha

Answer:

$15360\,\,rupees$

Step-by-step explanation:

Let sides of the triangle be $a,b,c$

$a=40\,,\,b=24\,,\,c=32$

Semi-perimeter (s) = $\frac{a+b+c}{2}$

$=\frac{40+24+32}{2}\\ =\frac{96}{2}\\=48$

Area of one tile $=\sqrt{s(s-a)(s-b)(s-c)}$

$=\sqrt{48(48-40)(48-24)(48-32)}\\ =\sqrt{48(8)(24)(16)}\\ =\sqrt{147456} \\=384\,\,cm^2$

So,

Area of 20 tiles $=20(384)=7680\,\,cm^2$

Cost of polishing the floor at the rate of 2 rupees per sq.cm = $7680(2)=15360\,\,rupees$

7 0

2 years ago

32 is 40% of what number? please show working.

blagie [28]

32 40%
80 100

to find the answer, you do 32 times 100, the. divide that by 40 which equals 80

6 0

2 years ago

Modeling with systems of linear inequalities

NeX [460]

Huh what you mean.....

8 0

3 years ago

If you could please help good sir...

Vladimir [108]

Answer:10

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Answer Please............​

Answer Please............