2 years ago

If a+b =5, b+c=6, c+a=7. then find the value of a

Mathematics

2 answers:

vlabodo [156]2 years ago

8 0

Answer:

a = 3

Step-by-step explanation:

egoroff_w [7]2 years ago

4 0

Step-by-step explanation:

2a + 2b + 2c

= (a + b) + (b + c) + (c + a)

= 5 + 6 + 7

= 18.

Hence, a + b + c = 9 and a = (a + b + c) - (b + c) = 9 - 6 = 3.

You might be interested in

Margaret is a waitress at The Seafood Bonanza. She earns $3 an hour plus 90% of her tips. Write an equation for her salary, S, i

frosja888 [35]

Answer: 3h + 0.9s

Step-by-step explanation:

90% is the same as 0.9 of..

6 0

3 years ago

An athlete plains to run 3 miles. Each lap around th school yard is 3/7 miles how many laps will the athlete run

kati45 [8]

Answer: 7 laps

Step-by-step explanation:

The athlete planned to run 3 miles

1 lap = 3/7 miles

x laps = 3 miles

by proportion :

x × 3/7miles = 3 miles

x = 3 ÷ 3/7

x = 3 x 7/3

x = 7

Therefore: the athlete will run 7 laps

3 0

3 years ago

Can someone help me write the expression

erica [24]

Answer: 4 1/10g^5+5 1/4

Step-by-step explanation:

8 0

3 years ago

Let f(r) = 6,<br> find f-¹(r)

I am Lyosha [343]

There is no answer because there cannot be one to one function inverse.

8 0

1 year ago

Plz help me well mark brainliest if correct!!

sesenic [268]

Answer:

It’s schedule B

3 0

2 years ago

If a+b =5, b+c=6, c+a=7. then find the value of a​

If a+b =5, b+c=6, c+a=7. then find the value of a