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2 years ago

Please help with question 22b! Thanks :)

Mathematics

2 answers:

NNADVOKAT [17]2 years ago

8 0

6.5 liters per 100 km travelled. 30% of 5 is 1.5, so adding this to the original amount results in 6.5

JulsSmile [24]2 years ago

6 0

Answer:

6.5 liters per 100 km travelled. 30 percent of 5 is 1.5, so add to the original amount that is in around 6.5

Step-by-step explanation:

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candice bought 3 shirts. Each shirt cost the same amount and was discounted by 3.66. Candice paid a total of 62.31 before tax. H

Sedaia [141]

Just divide 62.31 by three. The subtract the number you get by 3.66. That should be your answer.

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3 years ago

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There is a rectangle ABCD, with sides AB = CD = 32, and sides and BC = DA = 24. The rectangle is rotated 90° clockwise about C,

Sphinxa [80]

Answer

given,

side of rectangle, AB = CD = 32

BC = DA = 24

rectangle is rotated 90° clockwise about C.

then rotated 90° clockwise about D.

Path traveled by the point A for first rotation will be in circle with radius AC.

$D_1 = \dfrac{\theta_1}{360^0}\times \pi \times {AC}^2$

$AC = \sqrt{24^2+32^2}$

AC = 40

θ₁ = 90°

$D_1 = \dfrac{90^0}{360^0}\times \pi \times {40}^2$

D₁ = 1256.64

For the second rotation Point A will move in circular path with radius of AD

$D_2 = \dfrac{\theta_2}{360^0}\pi {AD}^2$

AD = 24

θ₁ = 90°

$D_2 = \dfrac{90^0}{360^0}\times \pi \times {24}^2$

D₂ = 452.39

total path traveled by the point A

D = D₁ + D₂

D = 1256.64 + 452.39

D = 1709.03

3 0

3 years ago

∇f = λ∇g gives us the equations 4xy = 4λx, 2x2 = 8λy. The first equation implies that x = Incorrect: Your answer is incorrect. o

Vlad1618 [11]

Answer:

The answer is correct

Step-by-step explanation:

6 0

2 years ago

One pipe fills a storage pool in 20 hours, another pipe fills the same pool in 15 hours.

erica [24]

X=time of the third person it would take to fill the pool
We can suggest this equation:
6[(1/20) + (1/15) +(1/x)]=1
6[(3x+4x+60)/60x]=1
(7x+60)/10x=1
7x+60=10x
7x-10x=-60
-3x=-60
x=-60/-3
x=20

Answer: the third person alone would fill the pool in 20 hours .

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2 years ago

a monument casts a 40-foot shadow. Adam is 6 feet tall and casts a 5-foot shadow. How tall is the monument

Stolb23 [73]

This is a proportion problem. Let the monument me x feet tall.
40/x=5/6
Cross multiply:
240=5x
x=48 ft.
So the monument is 48 ft tall,

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2 years ago

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