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4 years ago

PLEASE HELP!

Mathematics

1 answer:

Vitek1552 [10]4 years ago

3 0

Angle one is corresponding (equal to) angle 3, 5, and 7.
Hope this helps!

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PLEASE HELP PLEASE THANKS

ddd [48]

Answer:

$P=23.9\ inches$

Step-by-step explanation:

<u>Formula Evaluation</u>

Formulas are expressions where a sequence of letters, numbers or symbols have a determined meaning in given system.

Formulas are usually expressed as mathematical operations that connect one or more variables.

The perimeter of a triangle is the sum of the lengths of its sides. Being a,b, and c their sides, then the perimeter has the formula

$P=a+b+c$

We are given the values of

$a=13\ inches$

$b=7.2\ inches$

$c=3.7\ inches$

Thus the perimeter is

$P=13\ inches+7.2\ inches+3.7\ inches$

$\boxed{P=23.9\ inches}$

5 0

4 years ago

The perimeter of the blueprint is represented by the equation P=8x. What is the equation of the perimeter when solved for x

Korvikt [17]

Answer:

x = P/8

Step-by-step explanation:

The perimeter of the blueprint is given by the equation :

P = 8x

We need to solve the above equation for x.

Dividing both sides of the equation by 8.

$\dfrac{P}{8}=\dfrac{8x}{8}\\\\x=\dfrac{P}{8}$

Hence, the value of x is P/8

5 0

3 years ago

(Please show your work) (1 kwh = 3400 BTU’s 1 gallon = 8 pounds of water) The water coming into a dishwasher from a water heater

shtirl [24]

Answer:

5700 BTU

Step-by-step explanation:

Data provided in the question:

1 kwh = 3400 BTU’s

1 gallon = 8 pounds of water

Initial temperature = 50°F

Final temperature = 100°F

Water used by dishwasher = 10 gallons

Electrical energy used = 0.5 kwh

Now,

Water used in pounds = 10 × 8 = 80 lb

Total electrical energy used in BTU = 0.5 × 3400 BTU [ as 1 kwh = 3400 BTU]

Total electrical energy used in BTU = 1700 BTU

Energy used by water = Water used by dishwasher × Change in temperature × Specific heat of water

[ Specific heat of water = 1 BTU / °F.lb ]

Thus,

Energy used by water = 80 × 1 × ( 100 - 50 )

= 4000 BTU

Hence,

Total energy used = 1700 BTU + 4000 BTU = 5700 BTU

8 0

3 years ago

The ratio of fish to ducks at the water's edge was 5 to 2. If there were 28 in all, how many were fish?

densk [106]

Answer:

20 fish.

Step-by-step explanation:

Convert ratio to fraction:

There were 5 / (5 + 2) = 5/7 of fish.

So number of fish = 5/7 * 28

= 20.

8 0

3 years ago

Katie borrowed $2,500 at 10% simple interest for 5 years...

Anton [14]

Answer:

A) $1250

Step-by-step explanation:

p=$2500

r=10%

t=5yrs

i=p*r*t/100

i=2500*10*5/100

i=25*10*5

i=$1250

6 0

4 years ago