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3 years ago

Solve the part that need solving.

Mathematics

1 answer:

amid [387]3 years ago

5 0

dowload this app now hehe:) p.h.o.t.o.m.a.t.h

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The perimeter of a triangular field is 84 m, if the ratio of its sides are 13: 14:15, Find the area of the field. *

denis-greek [22]

Answer:

$Area = 336\ m^2$

Step-by-step explanation:

If the ratio of the sides is 13:14:15, we can say that the length of each side is 13x, 14x and 15x.

Then, if the perimeter is 84 m, we have:

$P = 13x + 14x + 15x = 84$

$42x = 84$

$x = 2$

The length of each side is:

$13x = 26\ m$

$14x = 28\ m$

$15x = 30\ m$

Now, to find the area of the field, we can use the following formula:

$Area = \sqrt{p(p-a)(p-b)(p-c)}$

Where a, b and c are the sides and p is the semi perimeter:

$p = P/2 = 42\ m$

So we have that:

$Area = \sqrt{42(42-26)(42-28)(42-30)}$

$Area = 336\ m^2$

8 0

3 years ago

Nia is baking pies for the party. Each pie requires 2 1/2 cups of

Rashid [163]

Answer:

2.93

Step-by-step explanation:

8 0

3 years ago

What 8s the answer please I need help

Sphinxa [80]

Tha answer
s are 200 and there are 20 tens

4 0

3 years ago

Read 2 more answers

Please help!!! I’ll mark brainliest!! (Look at picture)

Svetllana [295]

Answer:

$\huge\boxed{\sf (x*4) + (x*5) = 54}$

Step-by-step explanation:

$\sf x(4+5) = 54\\\\Applying \ distributive \ property\\\\(x*4) + (x*5) = 54\\\\Distributive\ Property\ is:\\\\A(B+C) = (A*B)+(A*C)\\\\\rule[225]{225}{2}$

Hope this helped!

4 0

3 years ago

)Marcus painted one-third of his bedroom in fourth-fifths of an hour. At this rate, how long would it take him the paint the ent

antoniya [11.8K]

1/3 = 4/5
2/3 = 4/5
3/3 = 4/5
-----------------
12/5 = 2 and 2/5 of an hour

2 hours and 24 mins
(i hope so, check my work)

4 0

4 years ago