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Dmitry_Shevchenko [17]
2 years ago
5

Steven put together 981 pieces of a puzzle. About how many pieces did he put together? Round to the nearest thousand. Use what y

ou know about place value to explain your answer.
Mathematics
1 answer:
Colt1911 [192]2 years ago
3 0
About 1,000 puzzle pieces
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Which molecule activates light reactions
natta225 [31]

Answer:

Step-by-step explanation:

The light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis: the energy storage molecule ATP and the reduced electron carrier NADPH. In plants, the light reactions take place in the thylakoid membranes of organelles called chloroplasts.

5 0
3 years ago
The value of the digit 5 in 634,952 is how many times the value of the 5 in 43,597
stealth61 [152]

Answer:

A}

Step-by-step explanation:

It is 10 times because it is one digit to the left that makes 10 times greater

6 0
3 years ago
Read 2 more answers
Need help with this question.
Vaselesa [24]

Answer:

4:1 (I think)

Step-by-step explanation:

Let's write some equations first:

For both prices increasing by 20:

\frac{x+20}{y+20} =\frac{5}{2}

then we can use cross multiplication

2x+40=5y+100

For both prices decreasing by 5:

\frac{x-5}{y-5} =\frac{5}{1}

same here:

5y-25=x-5

Using substitution for 5y, we get: 5y=x+20

2x+40=5y+100

2x+40=x+20+100

x=80

plugging this in to the second equation:

5y-25=x-5

5y-25=80-5

5y-25=75

5y=100

y=20

therefore we get x:y=80:20

4:1

4 0
2 years ago
A certain large manufacturing facility produces 20,000 parts each week. The manager of the facility estimates that about 1% of t
Slav-nsk [51]

Answer:

198 is the variance for the number of defective parts made each week.      

Step-by-step explanation:

We are given the following in the question:

Number of parts produced each week =  20,000

Percentage of defective parts = 1%

We have to calculate the variance for the number of defective parts made each week.

We treat defective part as a success.

P(Defective part) = 1% = 0.01

p = 0.01

Then the number defective parts follows a binomial distribution .

Formula for variance =

\sigma^2 = np(1-p) = 20000(0.01)(1-0.01) = 198

Thus, 198 is the variance for the number of defective parts made each week.

8 0
3 years ago
Josh bought 24 pounds of rice for $10. How many dollars did he pay per pound of rice?
8_murik_8 [283]

To find the cost per pound of rice, we can divide.

10 / 24 ≈ $0.42

A pound of rice approximately costs $0.42

Best of Luck!

7 0
3 years ago
Read 2 more answers
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