gurczynskijosep gurczynskijosep

14-04-2017
Mathematics

contestada

jason has 25 coins in is pocket total change is 505 how many dime and quarters he has?

Respuesta :

Аноним Аноним

14-04-2017

10x+25y=505
x+y=25

10x+25y=505
-10(x+y)=-10(25)

15y=255
y = 17

Plug back in.

x+17=25

x=8

8 dimes, 17 quarters

Answer Link

Otras preguntas

The diagram shows the starting position of a spinner on a board game. Which of the following shows how this spinner would look after a 270° clockwise rotation?

write f(x) in a non-factored way from polynomial equation f(x)=(x+2)(-x+3)(x-2)?

Consider this function. y = x2 − 4x − 96. Which coordinate pair identifies the minimum value of the function? A) (−2, 10) B) (2, 10) C) (4, 25) D) (2, −100)

help please thank you

Use the law of cosines to find the balue of cos 0 . Round to answer to two decimal places

It is pizza night at the murphy home and everyone has an opinion about what they should get as a topping on the pizza. which choice would best support the murph

Which of the following is the same as 2.3 × 103? A. 230 B. .023 C. .23 D. 2,300

What is equivalent to radical 40

1. What is a polygon? 2. What makes a polygon a regular polygon?

PLEASE HURRYLook at Jonathan's budget below. Find the percentages associated with each category of his budget: Monthly net income: $4,500 Expenses:Housing: $1,