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devlian [24]
3 years ago
9

a boat travels x miles per hour upstream on the mississippi river. The trip takes 3 hours. On the return trip, the boat travels

2 miles per hour faster. The trip takes 2.5 hours. How far does the boat travel upstream?
Mathematics
1 answer:
bogdanovich [222]3 years ago
6 0
Multiply by the reciprocal by 3 and divide the common denominator by 14
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14. A sphere is inscribed in a cube with an edge of 10. What is the shortest possible distance from one of the vertices of the c
DedPeter [7]

Answer:

5(√3 - 1)

Step-by-step explanation:

Edge of cube = 10

If the sphere is inscribed in a cube, the edges of the cube is equal to the diameter of the sphere.

Diameter = 10

We will then find the diagonal of the cube.

Diagonal = √10^2 + 10^2 + 10^2

= √300

= 10√3

Let X be the distance between the vertex of the cube and the surface of the sphere

X = (diagonal - diameter) /2

X = (10√3 - 10)/2

X = (10(√3 - 1))/2

X = 5(√3 - 1)

8 0
3 years ago
Zoe and Hannah share tips in the ratio 3:7. Last week, Zoe received £24. How much did Hannah receive last week?
Goshia [24]

Answer:

hannah gets £56

Step-by-step explanation:

z   : h

3   : 7

24 : ?

24/3 = 8

8 x 7 = 56

£56

hope this helps

brainliest plz?

x

8 0
3 years ago
A = (5)<br> b = (3)<br> Work out 4a + b
malfutka [58]

Step-by-step explanation:

IF A=5, B=3

4*5+3=20+3

         =23

THE ANSWER IS 23

8 0
2 years ago
A circular garden at a park has a diameter of 20 feet. A contractor is developing plans to build a 5 foot-wide walkway around th
choli [55]
I was scared of dances in the dark I was going to put the girls in certain conversations all my friends on your the magicians within an hour dreams are all
3 0
3 years ago
Let the equation C = 2.32 N + 34,180 represent the cost of raising a child, C, on an income, N.
ivanzaharov [21]

Answer:

C = 2.32 N + 34,180

C = 2.32 × 60000 + 34,180

C = 139200 + 34180

C = $173,380

4 0
3 years ago
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