Answer:
<h2>Bibi ate 6.3 pounds of food, approximately.</h2><h2>Rexy ate 5.7 pounds of food, approximately.</h2>
Step-by-step explanation:
1. What is this situation about?
The situation described is about the amount of food those dogs eat, and its relation with their weights.
2. What are the quantities in this situation?
The quantities are aboth the weight of each dog, and the number of pounds of dog food.
3. What mathematical questions could we ask?
We could ask the pounds of food each dog eats, in proportion with their weights.
4. Answer the question.
To answer that question, we just need to form a proportion.
Where 
is the total pounts Rexy ate, and 
is the total pounts Bibi ate.
Therefore, Bibi ate 6.3 pounds of food, approximately.
Then, 
Which means, Rexy ate 5.7 pounds of food, approximately.
Answer:
x=4
Step-by-step explanation:
(whole secant) x (external part) = (whole secant) x (external part)
(6+x) * 6 =(5+x+3) *5
(6+x) * 6 =(x+8) *5
Distribute
36+6x = 5x+40
Subtract 5x from each side
36+6x-5x = 5x-5x+40
36+x = 40
Subtract 36 from each side
36+x-36 = 40-36
x = 4
Answer:
the second 1
Step-by-step explanation:
I hope this helped
Answer:
B
Step-by-step explanation:
Given
7 | 3f + 4 | = 91 ← divide both sides by 7
| 3f + 4 | = 13
The absolute value function always returns a positive value, but the expression inside can be positive or negative. Thus there are 2 possible solutions.
Solve 3f + 4 = 13 → 3f = 13 - 4 = 9 ⇒ f = 3
Solve 3f + 4 = - 13 ⇒ 3f = - 13 - 4 = - 17 ⇒ f = - 
As a check
Substitute these values into the left side of the equation and if equal to the right side then they are the solutions.
f = 3 : 7| 9 + 4| = 7| 13| = 7 × 13 = 91 ← True
f = -
7 | - 17 + 4| = 7| - 13| = 7 × 13 = 91 ← True
Hence the correct solutions are B
