The first thing we must do is solve the problem step by step to choose the correct option.
Step 1:
Clear y from the first equation:
-5x + y = 6
y = 5x + 6
Step 2:
Replace this value of y in the second equation:
3x-y = 14
Substituting:
3x- (5x + 6) = 14
answer
the resulting equation after an equivalent expression for y is substituted into the second equation is
3x- (5x + 6) = 14
Answer:
15 have no flowers, 6 have pink flowers, and 9 have red flowers.
Step-by-step explanation:
If we add the percentages we get 50%. That means half of the plants (15 of the 30) have no flowers.
Since we have taken away half of the plants, we have to double the percentages. So 20% becomes 40% and 30% becomes 60%.
So now we get 40% of 15, which is 6, and 60% of 15, which is 9.
Another way of doing the last step is just subtracting the 6 from the 15 to get the 9.
First subtract 18 to -6
-6x=-24
Second divide -6 to -24
-6/-6=-24/-6
Finally x=4
Answer:
- 3 and 69/70
Step-by-step explanation:
3 ÷ 5(6 × 7) - 4
3 ÷ 5(40) - 4
3 ÷ 210 - 4
1/70 ÷ 4
- 3 and 69/70
