3 years ago

An example of an addition problem in which you would and would not group the addends different to add

Mathematics

1 answer:

murzikaleks [220]3 years ago

5 0

I dont think so. and you should add and then reseporate the groups.

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Janice is studying the effect of pipe size on water flow rates. In

Leni [432]

Answer:

208.6 gal/min

Step-by-step explanation:

For 2" pipe,

Given Volume = 463.2 gal, time = 12 min

flow rate for 2" pipe

= Volume ÷ time

= 463.2÷12

= 38.6 gal/min

For 4" pipe,

Given Volume = 1730.4 gal, time = 7 min

flow rate for 4" pipe

= Volume ÷ time

= 1730.4÷7

= 247.2 gal/min

Difference in flow rate = 247.2 - 38.6 = 208.6 gal/min

7 0

4 years ago

You are designing an aquarium that is to have a tank holding 225,000 gallons of water. The tank will be 100 feet long and 20 fee

yaroslaw [1]

225000 gallons = 30000 cubic foot

30000=100*20*x

x=15

The tank needs to be 15 feet high

8 0

3 years ago

How do you make -29 a fraction?

Ksivusya [100]

Any number in fraction form is over 1, so for a negative number like -29 it would be 29 over negative 1, like this: 29/-1

8 0

3 years ago

Nathan deposits $8,000 into an account that earns 6% interest compounded monthly. How much will he have in the account after 10

Ganezh [65]

Answer:

Answer:4800

Step-by-step explanation:

$8000 \times 6 \times 10 \div 100 \\ 800 \times 6 \times 1 = \\ 4800$

that is my answer

5 0

3 years ago

Construct the 99% confidence interval estimate of the population proportion p if the sample size is n=900 and the number of succ

oee [108]

Answer:

An 99% confidence interval of the given proportion

(0.355 , 0.385)

Step-by-step explanation:

Given sample size n= 900

the number of successes in the sample is x=333

The proportion P = $\frac{x}{n} = \frac{333}{900} = 0.37$

Q = 1-P =1 - 0.37 = 0.63

Confidence interval:-

99% of confidence interval zα = 2.93

$(P - z_{\alpha } \sqrt{\frac{PQ}{n} } , P + z_{\alpha } \sqrt{\frac{PQ}{n} })$

$(0.37 - 2.93 \sqrt{\frac{0.37(0.63}{900} } ,0.37 +2.93 \sqrt{\frac{0.37(0.63}{900} } })$

(0.37 - 0.015 , 0.37 + 0.015)

(0.355 , 0.385)

Conclusion:-

An 99% Confidence interval (0.355 , 0.385)

7 0

3 years ago