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Wewaii [24]
3 years ago
8

What is the solution to the linear equation 2.8y+6+0.02y=5y-14

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
6 0
Group all the 'y' terms on the left and all the other terms on the right:

<span>2.8y+6+0.02y=5y-14 => y(2.8+0.02-5)=-14-6

Now add up 2.8, 0.02 and -5; then combine -14 and -6.  Can you now solve for y?

</span>
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A jar contains 46 quarters and pennies. The total value of the coins is $4.30. Which system of equations can be used to find p,
Crazy boy [7]

Answer:

16 quarters

30 pennies

Step-by-step explanation:

q= quarters

p=pennies

set up a system of equations. One equation is for total value, the other is total # of coins.

q + p = 46

0.25q + 0.01p = 4.30 -> multiply this equation by 4 so you can subtract from the top equation

q + P =46

1q + 0.04p = 17.20

subtract the bottom equation from the top

0.96p = 28.8

divide by 0.96

p=30

substitute p in the top equation

q + 30 = 46

subtract 30 from both sides

q = 16

4 0
3 years ago
Jenny Pedaled her bike 11 miles in 45 minutes. if she traveled at the same speed, how far would she travel in 2 hours? Please sh
Anastaziya [24]
I believe the aswer is 29.7

1) 120 (2 hrs.in minutes) divided by 45
2) Round and multiply 2.7 by 11
3) Get your answer

         OR
1) 120 (2 hrs. n minutes) times 11
2) Divide by 45 and Get answer

6 0
3 years ago
How do you write 10% as a decimal?
Tatiana [17]
10% as a decimal is 0.10


Hope this helps!
5 0
2 years ago
Read 2 more answers
find the length of a segment indicated. Round your answer to the nearest tenth if necessary. NO LINKS. ​
Mademuasel [1]

9514 1404 393

Answer:

  8.  C) 24.2

  9.  A) 8.1

Step-by-step explanation:

8. The radius is shown as being 7.8 +4.3 = 12.1, so the diameter x is ...

  d = 2r

  x = 2(12.1) = 24.2

__

9. The unknown leg (y) of the right triangle can be found from the Pythagorean theorem.

  y² +11.7² = 12.5² . . . . . the radius is half the diameter

  y = √(156.25 -136.89) = √19.36 = 4.4

Then the segment of interest is ...

  x + y = 12.5

  x = 12.5 -4.4 = 8.1

6 0
3 years ago
Read 2 more answers
Your class has 30 students. if 1/3 of them walk to school, how many students in your class walk to school
Delvig [45]
1/3 of 30 would be 10. So 10 students walk to school.
4 0
3 years ago
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