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fredd [130]
3 years ago
9

Christy drove 270 miles in 6 hours at a constant speed how long would it take her to drive 405 miles at the same speed ?

Mathematics
2 answers:
Paha777 [63]3 years ago
8 0
Well, the speed is 45mph (divided 270 by 6). It would take her 9 hours (divided 405 by 45).
lakkis [162]3 years ago
8 0

Answer:

9 hours

Step-by-step explanation:

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Which numbers are​ rational?
QveST [7]

Answer:

0 is a rational number.

-7 is a rational number.

10 is a rational number.

Step-by-step explanation:

Not sure about the rest but these numbers I know for a fact are 100% rational.

3 0
3 years ago
Can someone please help me.
Anika [276]

Answer:

Radius= 8.99 mm (9 mm)

Step-by-step explanation:

We use the formula for the volume of a cone which is

1/3 pi ×(radius)^2 *height

932.58 = (pi) × (11) ×(r^2/3)

Radius^2 = (932.58×3) / (11pi)

= 80.96m

Radius= 8.99mm

5 0
2 years ago
Read 2 more answers
10m^2 of tiles cover a pool, the pool is shaped as a square, so all four edges are the same, and the depth is constant but not e
nignag [31]
Assume:

Size of sides = x m
Depth of the pool = y m

Therefore, surface area = x^2+4xy =10 m^2

Then, y = (10-x^2)/(4x)

Now,
Volume (V) = x^2*y = x^2*y =x^2(10-x^2)/4x = (10x-x^3)/4 = 1/4(10x-x^3)
For maximum volume, first derivative of volume function is equal to zero.
That is,
dV/dx =0 = 1/4(10-3x^2)
Then,
1/4(10-3x^2) = 0
10-3x^2 = 0
3x^2=10
x= sqrt (10/3) = 1.826 m
And
y= (10-1.826^2)/(4*1.826) = 0.913 m

Therefore,
V= 1.826^2*0.913 = 3.044 m^3
3 0
3 years ago
I rlly need to know this asap
balu736 [363]
Box A has 12 balls and Box B has 8 balls.
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Box A has 48 balls and Box B has 32 balls.
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2 years ago
Patrick has a $1000 bond with a 6% coupon. Howmuch interest will Patrick receive for this bond every 6 months?
alexandr1967 [171]
Its either 300 or 12
3 0
3 years ago
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