A) 5
B) 1/5
C) -5
D) -1/5
Answer:
C) -5
Step-by-step explanation:
-1 4/5 x= 9.
Change the left side to an improper fraction
(5*1+4)/5 = 9/5
-9/5 x =9
Multiply each side by -5/9 to isolate x
-5/9 * 9/5x = 9 * (-5/9)
x = -5
Answer:
C) -5
Step-by-step explanation:
-1 4/5 x= 9.
Change the left side to an improper fraction
(5*1+4)/5 = 9/5
-9/5 x =9
Multiply each side by -5/9 to isolate x
-5/9 * 9/5x = 9 * (-5/9)
x = -5
The weight of the Alis dog is pounds.
Further explanation:
Consider the weight of the Alis dog as poundsand weight of the cat as pounds.
Since, the weight of the Alis dog is 8 times the weight of the cat. It can be written as follows:
......(1)
Now, the total weight of the cat and dog are given as 54 pounds. It can be written as follows:
......(2)
From equation (1), substitute for in equation (2).
Thus, the weight of the cat is 6 pounds.
Substitute 6 for in equation (1) to obtain the weight of Alis dog as follows:
Thus, the weight of the Alis dog is 48 pounds.
Learn more:
1. Which function has an inverse that is also a function? {(–1, –2), (0, 4), (1, 3), (5, 14), (7, 4)} {(–1, 2), (0, 4), (1, 5), (5, 4), (7, 2)} {(–1, 3), (0, 4), (1, 14), (5, 6), (7, 2)} {(–1, 4), (0, 4), (1, 2), (5, 3), (7, 1)}
2. A given line has the equation 10x + 2y = −2. what is the equation, in slope-intercept form, of the line that is parallel to the given line and passes through the point (0, 12)? y = ( )x + 12
3. What are the domain and range of the function f(x) = 3x + 5?
Answer Details :
Grade: Middle School .
Subject: Mathematics .
Chapter: linear equation.
Keywords:
lines, equation, pound, Alis dog, cat, weight, linear equation, zeros, x,y,x=8y,x+y=54, function, substitution, pets, direct substitution, elimination, graph, middle term factorization, fraction.
Using an equation, we found that 75% of 104 is equal to 80% of 97.5. The number that made these percentages equal was found to be 97.5.
To find the unknown number, we can setup an equation using percentages and solve for the unknown. The problem states that 75% of 104 is the same as 80% of some number. So, we can write this as an equation: 0.75 * 104 = 0.80 * X. Solving this equation will give the value of X.
First, calculate the value of 75% of 104, which is 0.75 * 104 = 78. Now, replace this value into the equation: 78 = 0.80 * X. To solve for X, we divide 78 by 0.8, which gives us 97.5.
Therefore, 75 percent of 104 is the same as 80 percent of 97.5.
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