Step-by-step explanation: You need to divide 7 by 1/4. Whenever you divide fractions you keep the first number as it is, change the sign to multiplication and write the reciprocal of the second fraction which is you have to flip the fraction. It is going to be 7 times 4/1. Which is 28/1 which is 28.

8 0

3 years ago

Two plumbers charge different rates for service. The first plumber charges $100 per service call plus $25 per hour of service. T

Bond [772]

Answer: 2

Step-by-step explanation:

6 0

3 years ago

James joins Club One which charges a monthly membershi[ of $ 19.99. How much will James spend in all, if he continues his member

maria [59]

Answer:

James will spend $119.94

Step-by-step explanation:

Multiply $19.99 by 6.

$19.99 x 6 = $119.94

8 0

2 years ago

If (-3) exponent -5 = 1/x, what is the value of x? -243 - 1/243 1/243 243

trapecia [35]

Answer:

$\boxed {-243}\\$

Step-by-step explanation:

$\begin{array}{rclr}(-3)^{-5} & = & \dfrac{1}{x}& &\\(-3)^{5} & = & x &\text{Inverted each side of the equation}\\x & = & \boxed {\textbf{{-243}}}\\\end{array}$

6 0

3 years ago