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3 years ago

Which of the following is a more precise measurement?

Mathematics

1 answer:

erma4kov [3.2K]3 years ago

3 0

D) 1 hour, 4.5 seconds

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Calcium carbonate decomposes at 1200° C to form carbon

Ksju [112]

Ther are your answers

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3 years ago

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Every 2/3 hour, Harris can sew 1/6 pair of jeans. what is the unit rate?

podryga [215]

Here is the set up:

(2/3) ÷ (1/6) = unit rate

You finish.

7 0

3 years ago

Jose needs to make a total of 25 deliveries this week. So far he has completed 15 of them. What percentage of his total deliveri

schepotkina [342]

Answer:

Jose has completed <u>60%</u> of his total deliveries.

Step-by-step explanation:

Given:

Jose needs to make a total of 25 deliveries this week. So far he has completed 15 of them.

Now, to find the percentage of his total deliveries has Jose completed.

Total deliveries = 25.

Deliveries completed = 15.

Now, to get the percentage of his total deliveries has Jose completed:

$\frac{Deliveries\ completed}{Total\ deliveries} \times 100$

$=\frac{15}{25} \times 100$

$=0.6\times 100$

$=60\%.$

Therefore, Jose has completed 60% of his total deliveries.

7 0

3 years ago

John invests $200 at 4.5% compounded annually. About how long will it take for John’s investment to double in value?

Gekata [30.6K]

Answer:

The number of years needed is 15.75 years.

Step-by-step explanation:

The investment amount (present value) = $200

Interest rate =4.5%

Double of investment = $400

Now we have to find the time or number of years in which the investment amount will be doubled. So, just use the below formula to find the number of years.

Future value = present value ×(1+interest rate)^n

400 = 200×(1+4.5%)^n

N = 15.75 years

The number of years required to double the amount is 15.75 years.

8 0

3 years ago

Round 2.127 to the nearest hundredths, tenths and tens

Svetach [21]

Tenths: 2.1 hundredths:2.13 Tens:2

6 0

3 years ago