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Luda [366]
3 years ago
7

3 feet

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
5 0

Answer:

its B) 22

Step-by-step explanation:

:) ........bbbbbb

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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
I am supposed to be learning pie is there any good method for remembering it ​
KiRa [710]

Answer:

there is a video called the pi song

just basic value is 22/7 or 3.14

3 0
3 years ago
(x + 1) (x+8) multiply binomials and put in standard form.
Kobotan [32]

Answer:

x² + 9x + 8

Step-by-step explanation:

Step 1: FOIL

x² + 8x + x + 8

Step 2: Combine like terms

x² + 9x + 8

6 0
3 years ago
Read 2 more answers
Please help and work please
masha68 [24]
84/60=1.4
210/1.4=150
The answer is 150 cm
3 0
3 years ago
Elena got on 25 of her mom's nerves. Later, she gets on 7 more. How many nerves of her mother did Elena trigger?
Dmitry [639]

Answer:

the last one lol- thats just how it works

3 0
3 years ago
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