Answer:
Step-by-step explanation:
I assume you mean "if the ratio of 7 less than a number and 7 more than the number is 2".
Let x be the number.
Ratio is division.
(x-7)/(x+7)=2
Multiply by (x+7) on each side:
x-7=2(x+7) = 2x+14
Add 7 on each side
x=2x+21
Subtract 2
-x=21
x=-21
Answer:
Option A is correct answer
hear is explaination
Answer:
240 calories
Step-by-step explanation:
At each feeding, the baby received ...
45 mL × (20 calories)/(30 mL) = 30 calories
There were 8 feedings, so the total caloric intake was ...
(30 calories) × 8 = 240 calories
12x=4(x+5) (multiplying 4 by each argument in the parenhesis)
12x=4x+20 /-4x both sides
8x=20 /:8 divide both sides by 8

15x-3(3x+4)=6 (-3 times each argument in the parenthesis)
15x-9x-12=6
6x-12=6 /+12 both sides
6x=18 /:6 divide both sides by 6
x=3
3x-5x+10=36
-2x+10=36 /-10 both sides
-2x=26 /:(-2) divide both sides by -2
x=-13
2(x+3)=x+10
2x+6=x+10 /-x
x+6=10 /-6
x=4
The two ratios in the tables shown which have a common denominator you could use to compare is; 3/12 and 4/12
<h3>Ratio</h3>
Machael's ratio:
lemons to water = 1:4
Equivalent ratio
= 3 : 12
= 4 : 16
Sondra's ratio:
lemons to water = 2 : 6
Equivalent ratio
= 4 : 12
= 6 : 18
Therefore, the two ratios in the tables shown which have a common denominator you could use to compare is; StartFraction 3 Over 12 EndFraction and StartFraction 4 Over 12 EndFraction
Complete question
Michael and Sondra are mixing lemonade. In Michael’s lemonade, the ratio of lemons to water is 1:4. In Sondra’s lemonade, the ratio of lemons to water is 2:6. Several equivalent ratios for each mixture are shown in the ratio tables. Imagine that you want to compare Michael’s ratio to Sondra’s ratio. Which two ratios in the tables shown have a common denominator you could use to compare?
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