The answer is B because in total you there are 15 bicycles and tricycles so b +t =15
Bicycles have 2 wheels and tricycles have 3 wheels so 2b + 3t = 45

6 0

3 years ago

how is 0.00023 written in scientific notation? a. 23 x 10–5 b. 2.3 x 10–4 c. 2.3 x 104 d. 0.23 x 10–3

Annette [7]

Answer: $2.3\times10^{-4}$

Step-by-step explanation:

We know that Scientific notation is a way to write a very large or a very small number in the product of a decimal form of number [generally between 1 and 10] and powers of ten.

Given number : 0.00023

In scientific notation $0.00023=2.3\times\frac{1}{10000}=2.3\times10^{-4}$

Therefore, In scientific notation $0.00023=2.3\times10^{-4}$

7 0

3 years ago

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ANYONE GOOD AT MATH!!!! HELP WITH 3 QUESTIONS

mr_godi [17]

Ok do in the first you have to do a darwin’s if what 87 and i don’t know more

3 0

2 years ago

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