frostman frostman

19-05-2016
Mathematics

contestada

The sum of two numbers is 24. Their difference is 15. What are the two numbers?

Respuesta :

brooke1013 brooke1013

19-05-2016

x+y = 24x-y = 15 Thus, x=15+y Substitute for x in first equation becomes 15 +y + y = 24. 2y=9; therefore y=4.5, and since x = 24-y, x= 19.5 Check answer: 4.5 + 19.5 = 24; 19.5-4.5 = 15

Answer Link

Otras preguntas

element most similar to sodium (NA)

1. What is the BEST and WORST outcome if we practice equality.2. What is the BEST and WORST outcome if we DON'T practice equality.I will mark as brainliest Whoe

Increasing feelings of naturalism among many groups led to which consequence after World War I?

write a paragraph about your favourite food.

Help me pleaseeeeeeeeeee nowwwww

Match each example of characterization with the correct type. Mrs. Boggs's generosity inspired us to study harder. dialogue Mrs. Boggs agreed to tutor us all be

What is the measure of a. 64 b. cannot be determined c. 32 d. 40

[tex](2x + 3)(2 {x}^{2} - x - 2)[/tex]simplify this question

Using the right triangle below. What is the name for side AB? A) Hypotenuse B) Adjacent C) Opposite D) None of the above

Which best describes the ecosystems on Earth? A. Earth has mostly rain forest ecosystems. B. Separate ecosystems can affect each other. C. There are very few ty