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3 years ago

Understanding subtraction of integers and other rational numbers? Please help

Mathematics

1 answer:

Aleonysh [2.5K]3 years ago

4 0

Same signs add and keep, different signs subtract and keep the sign of the higher number. If you subtract intergers you keep,change, change the signs .

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How many significant digits are there in the number 5.0500? A. 3 B. 4 C. 5 D. 6

bixtya [17]

Answer:

Step-by-step explanation:

1)Non- zeros (1,2,3,....) are always significant.

2)Captive zeros are significant too( zeros between non- zeros ).

3)Trailing zeros (zeros at the end) aren't significant always unless if there is a decimal point.

Such this question we have decimal point so we count them

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3 years ago

300 of the 500 girls and 450 of the 600 boys attend the spring carnival. Which group has the greatest percent attendance

Snowcat [4.5K]

The boys do because 300 is 200 away from 500 450 is only 150 away from 600

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3 years ago

The speed of an object can be found by taking the distance it travels and dividing it by the time it takes to travel that distan

Alexus [3.1K]

Answer:

<h2>True the speed S in in Feet/second</h2>

Step-by-step explanation:

In this problem we are required to solve for the speed of an object.

given that the expression to solve for the speed is expressed as

speed= distance/time

given data

distance=100 feet

time=2.5 seconds

substituting our given data into the expression we can solve for speed as

speed (S)=100/2.5

S= 40feet/seconds

upon substituting our data the speed S was found to be 40feet/s

True the speed S in in Feet/second

4 0

3 years ago

Your friend's swimming pool is in the shape of a rectangular prism, with a length of 25 feet, a width of 8 feet, and a height of

RUDIKE [14]

Answer:

Part a) $V=1,000\ ft^{3}$

Part b) $h=5\ ft$

Part c) $=718\ gal$

Step-by-step explanation:

Part a) What is the volume of your friend's swimming pool?

we know that

The volume of a rectangular prism is equal to

$V=LWH$

substitute the values

$V=(25)(8)(5)=1,000\ ft^{3}$

Part b) Your swimming pool is in the shape of a cylinder with a diameter of 16 feet and has the same volume as your friend's pool. What is the height of your pool?

we know that

The volume of a cylinder is equal to

$V=\pi r^{2} h$