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Gekata [30.6K]
3 years ago
11

Use reasoning algebra to write the unknown factor

Mathematics
1 answer:
NARA [144]3 years ago
7 0
I dont get it... lol
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claire mowed 5 lawns last week. show mowed each lawn in 7/12 hour. she mowed the same lawns this week in 5/12 hour each using he
Zinaida [17]

Answer:

\dfrac{5}{6} hour or 50 minutes

Step-by-step explanation:

<u>Last week:</u>

Claire mowed 5 lawns

She mowed each lawn in \frac{7}{12} hour.

She spent

5\cdot \dfrac{7}{12}=\dfrac{35}{12}=2\dfrac{11}{12}

hours to mow 5 lawns.

<u>This week:</u>

Claire mowed 5 lawns

She mowed each lawn in \frac{5}{12} hour.

She spent

5\cdot \dfrac{5}{12}=\dfrac{25}{12}=2\dfrac{1}{12}

hours to mow 5 lawns.

<u>Difference:</u>

2\dfrac{11}{12}-2\dfrac{1}{12}=\dfrac{11}{12}-\dfrac{1}{12}=\dfrac{10}{12}=\dfrac{5}{6}

hour or 50 minutes.

5 0
4 years ago
Which of the following graphs shows a direct variation (proportion)?
Ilia_Sergeevich [38]

Answer:

a, d

Step-by-step explanation:

A direct variation graph will just have points going in a straight line.

The only graphs with a straight line are (a) and (d).

7 0
2 years ago
Read 2 more answers
To paint a house, two painters are hired. The first painter can paint the entire house in ten hours. The second painter will nee
wel
There is a formula you can use:
Time = (Worker1 * Worker2) / (Worker1 + Worker2)
Time = (10 * 6) / (10 + 6)
Time = 60 / 16
Time = 3.75 hours





7 0
3 years ago
17 is what percent of 340
AleksAgata [21]

Answer:

5%

Step-by-step explanation:

to work out what percent 17 is out of 340 we can formulate an equation

so 340(x%)=17

when we solve for x we get 5

4 0
3 years ago
The times for Erin’s five laps around the track were 56.6 seconds, 57.9 seconds, 57.5 seconds, 65.3 seconds, and 65.7 seconds. U
Dafna1 [17]

Answer:

i think is probably 70 sec or 75

Step-by-step explanation: idk

7 0
3 years ago
Read 2 more answers
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