Simplify
2nd one divide both sides by 5
5x+4y=4
hmm, seems familliar
times it by -1
-5x-4y=-4
same as other one
they are the same line
therefor the solution set is all the points on the line -5x-4y=-4 or y=(-5/4)x+1
solution set is alll points on y=(-5/4)x+1 or 5x+4y=4
Answer:
T = 4B + 10C
Step-by-step explanation:
Since there are 4 doughnuts in a bag then there are 4B doughnuts in B bags
Since there are 10 doughnuts in a carton then there are 10C doughnuts in C cartons, thus summing the two quantities gives
T = 4B + 10C
Answer:
Number of Starbursts= 66
Step-by-step explanation:
Method:
The first step in working out the number of Starbursts in the bowl is to add the the ratios of 3 and 4, this gives you 7.
The next step is to divide the total number of sweets which is 154 by the value of 7, this gives you 22. This is because we are trying to find out the value of one in the ratio.
The final step would be to work out the number of Starbursts in the bowl. This can be done by multiplying 22 by the ratio for Starbursts which is 3, this gives you 66. This means that out of 154 sweets 66 of them were starbursts.
Set by step:
1) Add 3 and 4.
2) Divide 154 by 7.

3) Multiply 22 by 3.

8x + 42 = 90
8x = 90 - 42 = 48
x = 48/8 = 6 answer