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artcher [175]
3 years ago
9

Make X the subject of h = 4 (x+3y) + 2

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
8 0
X = -3y
Thats the answer
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The first day Rita participates in a biathlon, she jogs at a rate of 6 miles/hour and bikes at a rate of 10 miles/hour. She cove
mafiozo [28]

Answer: she biked 0.8 hour each day

Step-by-step explanation:

Let x represent the number of hours that she jogged on both days.

Let y represent the number of hours that she biked on both days.

Distance = speed × time

On the first day, she jogs at a rate of 6 miles/hour and bikes at a rate of 10 miles/hour. She covers a total of 26 miles that day. This is expressed as

6x + 10y = 26- - - - - - - - - - - - - - - 1

The second day, she continues to jog at a rate of 6 miles/hour, but a hamstring pull slows her biking rate to 5 miles/hour. The second day she covers a total of 22 miles. This means that

6x + 5y = 22- - - - - - - - - - - -2

Subtracting equation 2 from equation 1, it becomes

5y = 4

y = 4/5 = 0.8

Substituting y = 0.8 into equation 1, it becomes

6x + 10(0.8) = 26

6x + 8 = 26

6x = 26 - 8 = 18

x = 18/6

x = 3

8 0
3 years ago
Pls help will give brainlist
mr Goodwill [35]
We cant answer the question without the diagram.
4 0
3 years ago
6. Edward bought 23.4 pounds of potatoes and 26.1 pounds of carrots.
DENIUS [597]

Answer:

49.5 lbs.

Step-by-step explanation:

23.4 + 26.1 equals 49.5 pounds

Hopefully this helps you  :)

pls mark brainlest ;)

5 0
3 years ago
Read 2 more answers
Pls help me answer this question
Novosadov [1.4K]

Answer:

c

Step-by-step explanation:

10*10=100

100-78.54=21.46

so rounded answer is c or 21.5

goodluck on your test

5 0
3 years ago
Read 2 more answers
Ted has $55. 00 in his pocket. Which purchase will he be able to pay for with cash? two books for $29. 95 each headphones for $2
kotykmax [81]

If Ted has $55. 00 in his pocket then out of  two books for $29. 95 each headphones for $29. 99 and a portable speaker set for $30. 95 an MP3 player for $35. 99 and a $20. 00 gift card for downloading music three books for $16. 99 each he can purchase  three books for $16. 99 each.

<h3>How to calculate total money spent ?</h3>

To calculate total money spent we have to add all the money we spent on all things.

Given that Ted has $55. 00 in his pocket.

(i)

two books for $29. 95 each

Money needed for 2 books = 2\times 29.95=59.9

So Ted is not able to purchase 2 books

(ii) headphones for $29. 99 and a portable speaker set for $30. 95

Money needed for headphones and portable speaker = 29.99+30.95=60.94

So Ted is not able to purchase  headphones and portable speaker

(iii)  an MP3 player for $35. 99 and a $20. 00 gift card for downloading music

Money needed for MP3 player and gift card= 35.99+20.00=55.99

So Ted is not able to purchase  MP3 player and gift card

(iv) three books for $16. 99 each.

Money needed for 3 books =3\times16.99=50.97

So ted is able to purchase these three books .

If Ted has $55. 00 in his pocket then out of  two books for $29. 95 each headphones for $29. 99 and a portable speaker set for $30. 95 an MP3 player for $35. 99 and a $20. 00 gift card for downloading music three books for $16. 99 each he can purchase  three books for $16. 99 each.

To learn more about money spent visit : brainly.com/question/21625005

7 0
2 years ago
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