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xenn [34]
3 years ago
12

The owner of a bike shop sells unicycles and bicycles and keeps inventory by counting seats and wheels. One day, she counts 21 s

eats and 30 wheels. The equation representing the total number of seats is u + b = 21 where u is the number of bicycles and b is the number of bicycles.
A. 2u + b = 21
B. u + 2b = 30
C. 2u + b = 30
D. u + 2b = 21
Mathematics
2 answers:
Sholpan [36]3 years ago
8 0

Answer:

The correct option is:

B. u + 2b = 30

Step-by-step explanation:

The owner of a bike shop sells unicycles and bicycles and keeps inventory by counting seats and wheels. One day, she counts 21 seats and 30 wheels.

u is the number of unicycles and b is the number of bicycles.

There are total 21 seats

⇒  u+b=21

unicycle has 1 wheel and bicycle has 2 and total there are 30 wheels

⇒ u+2b=30

Hence, the correct option is:

B. u + 2b = 30

bearhunter [10]3 years ago
5 0
The wheels function is:

w=2b+u and w=30 so

u+2b=30


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ABC= ADC, BA= 25, DA=
geniusboy [140]

Answer:

DA = 25

Step-by-step explanation:

Given that,

→ ABC = ADC ==> (1)

→ BA = 25 ==> (2)

From the given (1) and (2),

→ BA = DA

→ BA = 25

→ [ DA = 25 ]

Hence, the answer is 25.

4 0
1 year ago
Mrs. Booker was being chased by a horde of zombies. She had to run 8 yards to make it to a safe zone. How far did she run in fee
Vikentia [17]

Answer:

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Step-by-step explanation:

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5 0
2 years ago
The time to fly between new york city and chicago is uniformly distributed with a minimum of 120 minutes and a maximum of 150 mi
Paul [167]
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5 0
3 years ago
What is the answer for -4 (-6x + 3 ) =12
liq [111]

Answer:

x=1

Step-by-step explanation:

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4 0
3 years ago
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Svet_ta [14]

Answer:

9pr = 2q^2

Step-by-step explanation:

28.

px^2 + qx + r = 0

If one root is A then the other root is 2A

We have A + 2A = -q/p   and A*2A = r/p

So 3A = -q/p  so A = -q/3p and  A^2  = r/2p  so A = √ (r / 2p)

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3 years ago
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