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madreJ [45]
4 years ago
12

How do you solve this equation: 3x+1/5y=7

Mathematics
1 answer:
Greeley [361]4 years ago
7 0
Just plug in values till u get 7
3(2) + (1/5)5 = 7
6 + 5/5 = 7
6 + 1 = 7
7 = 7
You might be interested in
Two angles are supplementary. The first angle has 20 degreesmore the second angle. How ma y degrees are in each angle?
Vanyuwa [196]

Answer:

100 and 80

Step-by-step explanation:

Let x = be the first angle

x-20 is the second angle

They are supplementary so they add to 180

x+x-20 = 180

Combine like terms

2x-20 =180

2x-20+20 =180+20

2x= 200

Divide by 2

2x/2 = 200/2

x= 100

The first angle is 100 and the second is x-20

x-20 = 100-20=80

The two angles are 100 and 80

3 0
3 years ago
Am I correct? If so why?
babunello [35]

Answer: its correct

Step-by-step explanation: and its correct cuase its the answer you choose

7 0
3 years ago
In 2010, the population of a city was 241,000. From 2010 to 2015, the population grew by 5%. From 2015 to 2020, it fell by 4%. T
lawyer [7]

Answer:

242, 900 people

Step-by-step explanation:

To begin, it says that the population grew by 5%.

(241000)(1.00 + 0.05) = <em>population of the city in 2015</em>

(241000)(1.05) = 253050

253050 is the population of the city in 2015. From 2015 to 2020 it fell four percent.

(253050)(1.00 - 0.04) = <em>population of the city in 2020</em>

(253050)(0.96) = 242928

242928 is the exact population of the city. However, it says to round to the nearest hundred. Since 28 is less than 50, then it would round down to 900.

Therefore, the answer would be 242, 900 people.

4 0
3 years ago
*PLEASE HELP* *SPAM =REPORTED* 100 POINTS * PLEASE ADD EXPLANATION
Wewaii [24]

Answer:

your answer is B because with A the size of the dog cant lower and with D if there is less clothing then there cant more people and last we have C it cant be C because the more people there is the more the temp gets hotter not colder

Step-by-step explanation:

4 0
3 years ago
If the argument of a complex number in polar form is 3pi/2, then it lies on the _____.
IRISSAK [1]
Y axis, between quadrant III and quadrant IV
5 0
3 years ago
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