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jolli1 [7]
3 years ago
9

What is a rational number?

Mathematics
1 answer:
yuradex [85]3 years ago
8 0

Answer:a rational number is any number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q.

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Solve the system by substitution. Check your solution.
Zepler [3.9K]

Answer:

a.  (15, 15)

Step-by-step explanation:

We start with those two equations:

1) a - 1.2b = -3

2) 0.2b + 0.6a = 12

We'll begin by modifying equation #1 to isolate a:

a = -3 + 1.2b

Then we'll use this value for a in the second equation:

0.2b + 0.6 (-3 + 1.2b) = 12

0.2b - 1.8 + 0.72b = 12

0.92b = 13.8

b = 15

Then we'll place that value of b in the first equation to find a:

a - 1.2 (15) = -3

a - 18 = -3

a = 15

3 0
3 years ago
How do I simply -3/5(-8+5/9x-3)
prohojiy [21]

33/5 - x/3

hope this helps!


7 0
3 years ago
Read 2 more answers
Sophia uses 8 gallons of gas to drive 204 miles at the same rate how many miles can Sophia drive using 18 gallons of gas
Lady bird [3.3K]

Answer:

Sophia can drive 3672 miles using 18 galloons of gas.

Step-by-step explanation:

204 x 18 = 3672.

8 0
3 years ago
José put $1,500 into a savings account. He earns 3% interest every year. How much simple interest will he earn at the end of 3 y
stiv31 [10]

He would have a total of: $1639.09

In intrest alone he would've made 1639.09

Step-by-step explanation:

3%= 0.03

  • The first thing you do is multiply $1,500 by the %3 (0.03).

  • When your done multiplying, you should get 45.

  • Add 45 to 1500

  • Now you have 1545

  • Then you repeat the process over, two more times. However the numbers will change.

7 0
3 years ago
An unbiased coin is tossed 20 times find the probability that the coin lands heads exactly 11 times
alexgriva [62]
Both the heads and tails will have a probability of 0.5 with a fair coin. ... TO find probability that foe the 7th toss head appears exactly 4 times.
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3 years ago
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