I need help doing negative number

What is the answer to this 2^2x =1/32

Alex73 [517]

Answer:

$x=-\frac{5}{2}$

Step-by-step explanation:

$2^{2x}=\frac{1}{32}$

$2^{2x}=\frac{1}{2^5}$

$2^{2x}=2^{-5}$

$2x=-5$

$x=-\frac{5}{2}$

8 0

2 years ago

Read 2 more answers

Which equation best represents the relationship between x, the age of the machine in years, and y, the value of the machine in d

Evgen [1.6K]

Answer:

y=-0.5x+8

Step-by-step explanation:

stat, or just rise over run

8 0

3 years ago

Desmond really like Legos. Last Saturday Desmond counted his Legos and realized that

Burka [1]

Answer: 14 red, 7 green, 44 blue

Step-by-step explanation:

First, use the letter r as a variable to represent the number of red Legos. The number of green Legos (g) is 7 less than the number of red Legos, or g = r-7. The number of blue Legos (b) is 2 more than 3 times the number of red Legos, or b = 3r+2. The total number of Legos is the number of red + green + blue Legos, which can be represented as 65 = r+g+b.

Substitute the equations for g and b in. This should give you a final equation of 65 = r+(r-7)+(3r+2). To solve for the number of red Legos, first add up all of the terms to get 65 = 5r-5. Now add 5 to each side (70 = 5r). Finally, divide each side by 5 (r = 14).

To find the number of green Legos, substitute the number of red Legos (14) into the equation for the green Legos (g = r-7). This should get you the equation g = 14-7 which simplifies to g = 7.

To find the number of blue Legos, substitute the number of red Legos (14) into the equation for the blue Legos (b = 3r+2). This gives you the equation b = (3*14)+2. First, multiply 3 and 14 to get b = 42+2. Finally, add them together to get b = 44.

6 0

3 years ago

There were 436 tickets purchased for a major league baseball game. The general admission tickets cost $6.50 and the upper reser

monitta

Answer:

136 general admission tickets were purchased, and 300 upper reserved tickets were purchased.

Step-by-step explanation:

This question is solved using a system of equations.

I am going to say that:

x is the number of general admission tickets purchased.

y is the number of reserved tickets purchased.

There were 436 tickets purchased for a major league baseball game.