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anzhelika [568]
3 years ago
7

Nancy’s 50-meter freestyle swim time was 28.004 seconds. Betty’s 50-meter freestyle swim time was 27.949 seconds. What was the d

ifference between Nancy’s and Betty’s swim times?
Mathematics
2 answers:
vladimir2022 [97]3 years ago
8 0
If you subtract Betty's time for the swim, 27.948 seconds, from Nancy's time, 28.004 seconds, you will find that Betty was faster than Nancy by 0.056 seconds. She would be considered the winner of the 50-meter freestyle swim.
Vladimir [108]3 years ago
3 0

Answer:

Difference between Nancy's and Betty's swim times will be 0.055 seconds.

Step-by-step explanation:

It is given in the question that Nancy's 50- meter freestyle swim time was 28.004 sec. and Betty's swim time was 27.949 sec.

We have to calculate the difference between their swim times.

So to find difference from Nancy's swim time and Betty's swim time we will subtract Betty's swim time from Nancy's time.

The difference will be = 28.004 - 27.949 = 0.055 sec.

And the winner is Betty who took 0.055 seconds lesser than Nancy's swim time.

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A 5 pound bag of clay cost $2.65. At this rate how much would a 2 pound bag cost?
Nutka1998 [239]
2.65/5=.53(price per pound)
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a 2 lb bag will cost $1.06
3 0
3 years ago
What is f–1(8)??<br><br> Please select the best answer
notka56 [123]

Answer:

f^{-1}(8)=\frac{3}{2}

Step-by-step explanation:

Given f(x)=2x+5

We have to find f^{-1}(8)

In order to find f^{-1}(x) we have to make x as the subject of the formula

Let us assume f(x)=y

⇒2x+5=y

Subtracting both sides by 5

2x+5-5=y-5

2x=y-5

Dividing both sides by 2

\frac{2x}{2}=\frac{y-5}{2}

⇒x=\frac{y-5}{2}

Now substituting y with x

we have f^{-1}(x)=\frac{x-5}{2}

Now f^{-1}(8)=\frac{8-5}{2}

=\frac{3}{2}

So option (ii) is correct


5 0
3 years ago
Read 2 more answers
In 5 blank, 278, the difference between the value of the digits in the blank and the blank. What is the blank digit in
Katarina [22]

Answer: The digit in the thousand place is '9'.

Step-by-step explanation: The given number is 5_278.

The difference between the values of the digits in the thousandth place and the tenth place is 8930.

The digits in the tenth place is already given, which is 7

Let's assume the digits in the thousandth place is x,

8 0
3 years ago
Which of the following numbers is a perfect square? 141 196 124 222
Diano4ka-milaya [45]

Answer:

The answer is 196

Step-by-step explanation:

Find the square root of each number. All numbers are decimals but 196, which is 14

7 0
3 years ago
Find dcq pls thanks so much
Diano4ka-milaya [45]

Answer:

arc ABC = 196°

∠DCQ = 47°

Step-by-step explanation:

arc AD = 70°

∠D = 1/2 arc ABC = 98°

arc ABC = 98° * 2 = 196°

arc CD = 360° - arc AD - arc ABC = 360°-70°-196° = 94°

tangent chord angle DCQ = 1/2 arc CD = 1/2 * 94° = 47°

5 0
3 years ago
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