X/7-4=-2 u add two to both sides
x/7-2=0you add two to both sides again
x=14 u multiplied 7 and 2 and by x
Answer:
2/25 if this is slope.
Step-by-step explanation:
so y^2 refers to the y coordinate of your second point and the same for y^1, but for the first point. Then you want to subtract those. In this one, it would be 18 - 14 = 4. Once you get that, do the same thing for the x coordinates. Ex: 30 - (-20) = 50 (something minus a negative is like addition). Then put your y answer over your x answer as a fraction and simplify. Ex: 4/50 -> 2/25. This is your answer.
Hope this makes since and helps!
Complete Question.
Carolina goes to a paintball field that charges an entrance fee of $18 and $0.08 per ball. The field has a promotion that says, "Get $10 off if you spend $75 or more!" Carolina wonders how many paintballs she needs to buy along with the entrance fee to get the promotion. Let B represent the number of paintballs that Carolina buys
Answer:
She needs to buy 712.5 balls
Step-by-step explanation:
Let B represent the number of paintballs that Carolina buys
How many paintballs she needs to buy along with the entrance fee to get the promotion.
From the above question, we have the following Inequality equation
$18 + $0.08 × B ≥ $75
18 + 0.08B ≥ 75
18 + 0.08B = 75
0.08B = 75 - 18
0.08B = 57
B = 57/0.08
B = 712.5
Answer:
The numbers are in the ratio 5:7
Let their common multiple be 'x'
The numbers are 5x, 7x
If 3 is subtracted from each of them the ratio becomes 2:3
5x-3/7x-3 = 2/3
3(5x-3) = 2(7x-3) (cross multiplication)
15x -9 = 14x -6
15x-14x = -6+9
x=+3
Therefore the numbers are 5* 3 =15, 7*3 = 21
(Verifications when 3 is subtracted from each other ,the ratio is 2/3, 15–3/21–3 = 12/18 = 2/3 ) verified)
The numbers are 15 & 21.
Step-by-step explanation:
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