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Scorpion4ik [409]
2 years ago
9

At her health club, Lauren uses a treadmill every 2 days and the weight machines every 8 days. She used a treadmill on March 2 a

nd will use the weight machines on March 8. Lauren says that the first time she will use both a treadmill and the weight machines in March is March 16 because the LCM of 2 and 8 is 16.Does Lauren’s reasoning make sense? Use an example or a counter example to explain your analysis.
Mathematics
1 answer:
Sedbober [7]2 years ago
3 0

Answer:

Yes

Step-by-step explanation:

The Least common multiple (LCM) shows when the two over lap first.

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To find 15/16 multiplied by 4/5 Kali writes 15/16 multiplied by 4/5 =3/4 multiplied by 4/5=3/5. What mistake does she make? Dete
Ber [7]

Answer:

The mistake is to make \frac{15}{16}=\frac{3}{5}

The correct answer \frac{3}{4}

Step-by-step explanation:

This is the operation performed by Kali:

\frac{15}{16}*\frac{4}{5}=\frac{4}{5}*\frac{3}{5}=\frac{12}{25}

but 15/16 ≠3/5, so knowing this   \frac{a}{b}*\frac{c}{d}=\frac{a}{d}*\frac{c}{b}  ,  then

\frac{15}{16}*\frac{4}{5}=\frac{15}{5}*\frac{4}{16}=3*\frac{1}{4}=\frac{3}{4}

7 0
3 years ago
Read 2 more answers
7÷7/11=<br> Please explain for me
Vikentia [17]

Answer:

11

Step-by-step explanation:

You have to first make the 7 into a fraction (7/1) then keep, change, flip.

You keep the 7/1 as it is, you change the division sign into a multiplication sign, and you flip the 7/11 to 11/7. You then just multiply straight across to get 77/7 which is the same thing as 11/1 which is the same thing as 11!

Final answer:11

4 0
2 years ago
The velocity, V, of a specific object being dropped from a particular height, h, can be found by the radical function V equals t
Jobisdone [24]

Answer:

20.3 ft/sec

Step-by-step explanation:

7 0
3 years ago
Find the domain and range of each relation. Then determine if the relation is a function. ​
Vlad [161]

Answer:

There is no fixed domain, meaning it is ongoing

The range is from -1 ≤ x ≤ 3

It is a function

Step-by-step explanation:

Domain refers to the x values. If there was a domain then there would be a dot or a point signalling that there is a fixed domain, however, there are arrows meaning that it will keep going.

The range refers to the y-values. The lowest y-value is -1 and the highest is 3.

It is a function because, when you do the vertical line test, each x-value has its own y-value.

3 0
3 years ago
A quadratic parent function is translated 3 units to the left and 4 units up
tatuchka [14]
The answer would be (x+3)^2+4
5 0
2 years ago
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