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4 years ago

Guysssss I'm struggling in mathh :( I need help

Mathematics

2 answers:

san4es73 [151]4 years ago

6 0

Answer:

a. 90/ 4.5 = 20 flags per yard

b. 4.5/ 90 = 0.05 = 5 hundredths of a yard

c. 0.75 x 3 colours = 2.25 yards

4.5 = 90 flags so 4.5/2 = 2.25 = 45 flags

Justifies she is correct when saying 45 flags can be made with 3 x 0.75 material as this is equal to 2.25 yards which is half of 4.5 yards equal to 90 flags.

To find 4.5 we have 3 pieces of material to begin with for part a and part b

This shows 1.5 x 3 = 4.5 yards

To find 2.25 we have 3 pieces of material in part c.

This shows 0.75 x 3 = 2.25 yards

Sedaia [141]4 years ago

5 0

Answer:

The first two is x=60

Step-by-step explanation:

1.5/90 = 1/x

1.5x = 90 x 1

1.5x/1.5 = 90/1.5

x = 60

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3 years ago

2. Richmond Appliance repairs washing machines. The revenue that the company earns is given by the function R(h) = 20 + 45h doll

Vesnalui [34]

The number of hours needed for the company to break even happens when
$R(h)=C(h)$

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$0= 5h^{2}-45h-50$ , divide each term by 5
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4 years ago

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SIZIF [17.4K]

Answer:

The answer would be -5 :)

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Water flows through a pipe of diameter 4cms with a velocity of

MissTica

Answer:

1.28 m

Step-by-step explanation:

The speed at which water rises in the tank is proportional to the speed of the water in the pipe and inversely proportional to the ratio of the tank area to the pipe area.

The ratio of tank area to pipe area is the square of the ratio of their diameters:

((150 cm)/(4 cm))² = 1406.25

Then the rate of rise of water in the tank is ...

(0.5 m/s)/(1406.25)

After 1 hour = 3600 seconds, the height of the water will be ...

rise = (time)(rate of rise)

(3600 s)(0.5 m/s)/1406.25 = 1.28 m

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3 years ago

given that interior angle of a regular polygon is five times of its exterior angle, calculate the size of interior angle of the

Natali5045456 [20]

Answer:

Step-by-step explanation:

Let the exterior angle = x

Interior angle = 5x

x + 5x = 180 { interior angle and exterior angle are linear pair}

6x = 180

x = 180/6

x = 30

Interior angle = 5*30 = 150

7 0

4 years ago