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krok68 [10]
3 years ago
5

PLEASE ANSWER

Mathematics
1 answer:
katrin2010 [14]3 years ago
5 0

Answer:

Answer to part a. is 169/16. Answer to part b. is 84.5.

Step-by-step explanation:

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Ricky can ride 17 km on his bike in the same length of time ha can walk 9 km.if his riding speed is 4 kph faster than his walkin
aivan3 [116]
Distance=speed times time
if they take the same time, we cal the time , t

b=bike speed
w=walking speed

bikedistnace=17=bt
walkdistance=9=wt

b is 4 more than w
b=4+w

we have
17=bt
9=wt
b=4w

ok so
multiply first equation by 9 and 2nd by 17

153=9bt
153=17wt
set equal
9bt=17wt
divide both sides by t
9b=17w
sub b=4+w for b
9(4+w)=17w
distribute
36+9w=17w
minus 9w both sides
36=8w
divide both sides by 8
4.5=w

he walks 4.5kph
5 0
3 years ago
What is 76/10 in a mixed number??
cestrela7 [59]
A mixed number is in the form x y/z while a improper fraction (76/10) is in the form y/z. We can separate the fraction into two parts. One is 70/10 which = 7 and the other is 6/10 which simplifies to 3/5. So, in order to express 76/10 as a mixed number we must express it as 7 3/5 or 7 6/10. 7 3/5 is equal to 7 6/10.

I hope this helped you!  
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5 0
3 years ago
What is the probability that the first marbles you choose is red and the second is blue
ella [17]

Answer:

2/9

Step-by-step explanation:

5 0
1 year ago
Can any one please help me with these Math questions soon as possible?
disa [49]

Answer:

the answer to the first question is 9/27, 5/27, 13/27

the answer to the second question is 27/126, 33/126, 20/126, 42/126

the answer to the last question is 32/44

Step-by-step explanation:

they way you solve the fist two questions you just add the numbers up and that will tell you your probability.

for the last question you take the number of players and subtract it by 12 to get the top number

7 0
3 years ago
The height of a triangular prism is 6 cm and its base is an equilateral triangle with an area of 25 sq cm. Find the volume of th
NARA [144]

Answer:

150cm³

Step-by-step explanation:

volume =1/2b×bh×h

volume=25×6

=150

hope this helps

please like and Mark as brainliest

6 0
3 years ago
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