All categories

3 years ago

What's the area and perimeter of a right triangle with sides 5, 12 and 13( 5 and 12 are the base and height)

Mathematics

2 answers:

umka21 [38]3 years ago

8 0

Area of a right triangle =base*height/2=5*12/2=5*6=30

uysha [10]3 years ago

7 0

Perimeter is 30
Area is also 30.

Add the numbers to get the perimeter and then use 1/2bh to get the area.

You might be interested in

Douglas invests money in two simple interest accounts. He invests three times as much in an account paying 14% as he does in an

Rainbow [258]

Douglas invested $ 1300 altogether

Solution:

Let x represent the amount invested in the account paying 14% interest.

Let y represent the amount invested in the account paying 5% interest

He invests three times as much in an account paying 14% as he does in an account paying 5%

Which means,

x = 3y

The simple interest is given by formula:

$S.I = \frac{p \times n \times r}{100}$

Where,

"p" is the principal

"n" is the number of years

"r" is the rate of interest

He earns $152.75 in interest in one year from both accounts combined

Therefore,

Combined S.I = 152.75

n = 1 year

Considering the account earning 14% interest:

$S.I = \frac{3y \times 14 \times 1}{100}\\\\S.I = 0.42y$

Considering the account earning 5% interest:

$S.I = \frac{y \times 5 \times 1}{100}\\\\S.I = 0.05y$

Since, Combined S.I = 152.75

Therefore,

0.42y + 0.05y = 152.75

0.47y = 152.75

Divide both sides by 0.47

y = 325

Therefore,

x = 3y

x = 3(325)

x = 975

how much did he invest altogether?

Amount invested together = x + y = 975 + 325 = 1300

Thus he invested $ 1300 altogether

3 0

3 years ago

You have a 45-gallon jug and a 124-gallon jug. neither of the jugs has any markings (although you do know their capacities). des

Alja [10]

Pour 4 times of 124-gallon into a big jug.
Amount of water = 124 x 4 = 496 gallons

Then use the 45-gallon jug to scoop out the water 11 times.
Amount of water scooped out = 11 x 45 = 455 gallons

Water remaining = 496 - 450 = 1 gallon.

5 0

3 years ago

Read 2 more answers

25.7 divided by 1.8

ololo11 [35]

The answer is 14.27 :) correct me if wrong I think I am

7 0

3 years ago

Read 2 more answers

Helpp Which expression is equivalent to the given expression?

lakkis [162]

Answer:

photo is not clear

take screenshot.after zoom

then send me

3 0

2 years ago

Read 2 more answers

Iplease need help will mark brainliest

STALIN [3.7K]

Answer:

6. xint=-7

yint=-3

7. xint=-7

yint=-5

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers