All categories

3 years ago

I know this has already been answered but im still a little confused 19x+rx=-37x+w

Mathematics

1 answer:

lawyer [7]3 years ago

3 0

Answer:

new 10 marks will be why you're giving 5 marks please give 10 marks

You might be interested in

The table on the right shows last initials of basketball players and the number of games played by each. Find the z-score for p

Umnica [9.8K]

The answer is J 73
a a

5 0

3 years ago

Please help. Thank you!

katrin2010 [14]

Answer:

3a. ⇒ 2700 cm³

3b. ⇒ 72,900 cm³

3c. ⇒ 27

Step-by-step explanation:

3a.

∵ The model in a shape of square pyramid

∴ Its volume = base area × height

∵ Base shaped square with side length 15 cm

∴ Area of base = 15 × 15 = 225 cm²

∵ The model height = 12 cm

∴ She needs = 225 × 12 = 2,700 cm³ of plaster

3b.

∵ Each dimension in the actual stage = 3 times the model

∴ The side of the square base = 15 × 3 = 45 cm

∴ The height = 12 × 3 = 36 cm

∴ The area of the base = 45 × 45 = 2,025 cm²

∴ She needs = 2025 × 36 = 72,900 cm³ of plaster

3c.

∵ Each length in the actual stage is 3 times the model

∴ The volume of the actual stage = (3)³ the volume of the model

∴ The volume of the actual stage = 27 the volume of the model

<em>To check your answer:</em>

Volume actual ÷ Volume model = 72,900 ÷ 2700 = 27

3 0

3 years ago

A yacht that travels 1.375 km in 165 minutes expressed in km/h

Tomtit [17]

The speed of a yacht traveling a distance of 1.357 km in 165 minutes is 0.5 km/h

<h3>What is Speed?</h3>

The speed of an object is the distance covered by the object in respect to time.

Mathematically:

$\mathbf{Speed = \dfrac{distance}{time}}$

$\mathbf{Speed = \dfrac{1.375 \ km}{165 minutes }}$

We know that 60 minutes = 1 hour
165 minutes = 2.75 hours

$\mathbf{Speed = \dfrac{1.375 \ km}{2.75 \ hours}}$

Speed = 0.5 km/hour

Learn more about calculating speed here:

brainly.com/question/4931057

8 0

2 years ago

Can you please help formate this problem

vovangra [49]

Take another picture

5 0

3 years ago

Carmen has already taken 2 pictures at home , and she expects to take 4 pictures during every day of vacation . After 3 days of

lora16 [44]

She will take 14 pictures

4 0

3 years ago