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3 years ago

Solve the system of equations by graphing. X+ y = 7 2x - 4y=8

Mathematics

1 answer:

Sidana [21]3 years ago

6 0

Answer:

(6,1)

Step-by-step explanation:

after switching the equations from y=mx+b, graph both equations. you will see that the point of intersection is (6,1)

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Answer all of them I'll give brilliant if you answer for points you'll be reported <br>

kap26 [50]

Answer:

1 D

2 A

3 C

4 A

5 C

6 is supposed to be 35 so maybe choose the one closest

7 C

8 C

12 A=8/9

12 B=26/52

2/52

4/52

13/52

My apologizes but I cant read the graphs or the fractions down below

hope this helped :)

5 0

3 years ago

Bob has $1.15 in his wallet which contains 18 coins in nickels and dimes. Find how many nickles he has.

ratelena [41]

9514 1404 393

Answer:

13 nickels

Step-by-step explanation:

Let n represent the number of nickels Bob has. Then 18-n is the number of dimes, and the total value (in cents) is ...

5n +10(18-n) = 115

-5n +180 = 115 . . . simplify

65 = 5n . . . . . add 5n-115

13 = n . . . . . . . divide by 5

Bob has 13 nickels.

5 0

3 years ago

Read 2 more answers

A Best Eastern Motel is a regional motel chain. Its rooms rent for $90 per night, on average. The variable cost is $40 a room pe

Vlad1618 [11]

Answer: break even point (y) = 24000

Step-by-step explanation:

This is quite simple to solve,

We will take a step by step calculation.

let us begin;

Given that the Room rent per night is = $90

Also the variable cost per night = $40

Total fixed cost = $1200,000

Now we are asked to solve for the Break even point;

Remember that at break even point, the Revenue = cost

Say the required revenue from renting y rooms R = $90y

The cost of renting y rooms = C = $ (40y + 1200,000)

therefore from this we have the Break even point as

$90y = $ (40y + 1200,000)

where y = 24000

cheers i hope this helps!!!!!!

4 0

3 years ago

Read 2 more answers

Need help asap with this problem.

4vir4ik [10]

Answer:

53°

Step-by-step explanation:

I color coordinated the angles in this picture. The angles with the same color are the same angle.

Please let me know if you don't understand--I would love to help more!

5 0

3 years ago

9 is 3% of what<br><br><br> please show your work

Black_prince [1.1K]

3%=3/100=0.03

0.03x=9
divide both sides by 0.03
x=300

Answer=300

6 0

3 years ago

Read 2 more answers