7(a+3) this is the answer im pretty sure
C) Victoria has y dollars. This amount is 12 times x, the amount of money in dollars Victoria’s brother has.
<u>Step-by-step explanation</u>:
The equation is represented as y = 12x
- The option A) does not match the equation. since it is given that x is 12 times y (x = 12y).
- The option B) does not match the equation since it is given that she recieves $12 as change (x = y-12)
- The option C) matches the equation since Victoria has 12 times the amount of his brother (y = 12x)
- The option D) does not match the equation since Victoria is 12 years greater (y = x+12)
<h2>
Answer:</h2>
<u><em>Let m be the amount each mom can paint and d be the amount each daughter can paint.</em></u>
<u><em>On the first day, 8 mothers were painting so the mothers painted 8m square feet. 12 daughters also painted so the daughters painted 12d square feet. The total amount painted on the first day is then 8m+12d square feet. Since 220 square feet was painted on the first day, then 8m+12d=220. Dividing both sides by 4 gives a simplified equation of 2m+3d=55.</em></u>
<u><em>On the second day, 6 mothers were painting so the mothers painted 6m square feet. 8 daughters also painted so the daughters painted 8d square feet. The total amount painted on the second day is then 6m+8d square feet. Since 152 square feet was painted on the second day, then 6m+8d=152</em></u>
<u><em /></u>
<u><em>Multiply the first equation by -3 and then add it to the second equation to eliminate m and solve for d:</em></u>
<u><em>d=13</em></u>
<u><em>2m+3d=55</em></u>
<u><em>2m+3(13)=55</em></u>
<u><em>2m+39=55</em></u>
<u><em>2m=16</em></u>
<u><em>m=8</em></u>
<u><em>Therefore each mom painted 8 square feet and each daughter painted 13 square feet.</em></u>
Answer:
The difference is 15.
Step-by-step explanation:
30-15=15
45-30=15
60-45=15
Awe thanks.
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