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Pepsi [2]
3 years ago
13

Mia and Holly can clean their room in 20 min, working together. Mia, working alone, can do the job in 30 min. How many minutes w

ill it take holly to clean their room, working alone?
Mathematics
1 answer:
Simora [160]3 years ago
3 0

Answer: 30 i do believe

Step-by-step explanation: Since Mia can do it in 30 minutes i think you need to add 10 to 20 to get 30. If im wrong choose 10

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I Need help!!! please??​
gladu [14]

Answer:

-25/12

Step-by-step explanation:

Hope this helps

3 0
2 years ago
Hi.
NeX [460]

Answer:

(a)

1 sig: 0.005

2 sig: 0.0048

3 sig: 0.00482

(b)

1 sig: 50

2 sig: 50.

3 sig: 50.0

(c)

1 sig: 0.0010

2 sig: 0.00098

3 sig: 0.000981

Step-by-step explanation:

Significant Figures Rules:

  1. Any non-zero digit is significant.
  2. Any trailing zeros after the decimal is significant.
  3. Any zeros between 2 significant digits are significant.
  4. Zeroes before significant numbers in the decimal place are NOT significant; they are placeholders.

(a)

0.004816 - the zeros are placeholders, so they do not count as sig figs.

(b)

50.00168 - the zeros are between 2 significant figures, so they do count as sig figs.

(c)

0.0009812 - the zeros are placeholders, so they do not count as sig figs

5 0
3 years ago
What is the reciprocal of 159?
wariber [46]
<h2>Hey there! </h2>

<h2>The Reciprocal of 159 is:</h2>

\frac{1}{159}

{where \: 1 \: is \: hidden}

<h2>Hope it help you </h2>
5 0
3 years ago
Yesterday, 4/7 of the 210 students in a contest gave their speeches. How many students gave their speeches?
Elenna [48]

Answer:

120.

Step-by-step explanation:

210 * 4/7

=  30 * 4

= 120.

6 0
3 years ago
Can we consider 5√×as monomial? ​
PilotLPTM [1.2K]

Answer:

A monomial is an expression in algebra that contains one term, like 3xy. Monomials include: numbers, whole numbers and variables that are multiplied together, and variables that are multiplied together. A polynomial is a sum of monomials where each monomial is called a term.

5 0
3 years ago
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