tsherman88 tsherman88

28-02-2017
Mathematics

contestada

suppose x and y vary inversely and y=10 when x=4. write a function that models the variation then find y when x =90

Respuesta :

nobillionaireNobley nobillionaireNobley

07-03-2017

x = k/y
4 = k/10
k = 4 x 10 = 40
Thus, x = 40 / y

90 = 40 / y
y = 40/90 = 4/9

Answer Link

Otras preguntas

Each key on a touch-tone telephone makes a slightly different sound when touched. This difference is due to the pitch of sound produced by each key. The differe

What is the equation of the line?

Merritt Island National Wildlife Refuge is an important Florida wildlife sanctuary for birds. Recently, an energy corporation has proposed constructing wind tur

The NIST SP 800-100 Information Security Handbook provides technical guidance for the establishment and implementation of an information security program. _____

The value of Kp for the reaction NO(g) 1 1 2 O2(g) 4 NO2(g) is 1.5 3 106 at 25°C. At equilibrium, what is the ratio of PNO2 to PNO in air at 25°C? Assume that P

Air modeled as an ideal gas enters a turbine operating at steady state at 1040 K, 278 kPa and exits at 120 kPa. The mass flow rate is 5.5 kg/s, and the power de

Students asked to measure the temperature of a reaction beaker recorded the following temperatures. 103.7°C, 108.4°C, 105.8°C, 104.6°C The actual temperature is

16. When Laura finishes cooking, her oven temperature is 400°F. If her oven cools at a rate of 3.25°F per minute, how many minutes will it take for her oven to

To what family dose Rosalind belong to

Suppose a bank enters a repurchase agreement in which it agrees to buy Treasury securities from a correspondent bank at a price of $ 24,950,000, with the promis