Solve to find the values of a and b.4a + 7b = 389a + 7b = 68

1 answer:

5 0

4a + 7b = 38 -> (1)
9a + 7b = 68 -> (2)

Subtract (1) from (2),
9a - 4a + 7b - 7b = 68 - 38
5a = 30
a = 6

You might be interested in

Levart [38]

The answer is c !! -1/2

3 0

3 years ago

timurjin [86]

Answer: the answer is the second one.

Hope this helps

Step-by-step explanation:

4 0

3 years ago

Nesterboy [21]

Answer:

jfdslkhfbdjskbvdslkjfbv;kjdabva;ksjdvbljfslfdhglkdufhgdsrlkgujdsgljkdsfbvlkfdjdd;hgs;dihg;dsifvsj

Step-by-step explanation:

4 0

3 years ago

Nadusha1986 [10]

Answer:

180 divided by 45 is equal to 4km/h

7 0

3 years ago

Archy [21]

Answer is:
a) 32
b) 59
Both are arithmetic sequences

4 0

3 years ago

Solve to find the values of a and b.4a + 7b = 389a + 7b = 68​