Pandadoge2716 Pandadoge2716

01-10-2018
Mathematics

contestada

Trisha has a bag with 32 dimes and nickels worth $2.80. How many of each coin does she have?

Respuesta :

wolf1728 wolf1728

01-10-2018

A) D + N = 32

B) .1D + .05N = 2.80 multiplying A) by -.1

A) -.1D -.1N = -3.2 then adding this to B)

-.05N = -.4

Nickels = 8 Dimes = 24

*************** DOUBLE-CHECK

.1 * 24 + .05 * 8 = 2.80 ||| 2.40 + 40 = 2.80

Answer Link

Otras preguntas

If temperature increases, what happens to pressure? Question 3 options: Pressure increases. Pressure decreases. Pressure stays the same.

Which is the best estimate for the average rate of change for the quadratic function graph on the interval 0 ≤ x ≤ 4? A) −1 B) −2 C) −3 D) −4

What are the answers for 64-65?

Determine the eccentricity, the type of conic, and the directrix for r=6/1+2cos theta

CAN YOU HELP ME OUT PLEASE

Philip needs to incorporate at least 200 roses in his floral arrangements for a wedding. Each centerpiece will have 24 roses, and each bouquet will have 10 rose

What is an example of speech that the government limits?

What is the midpoint between A and B? A) (5,3) B) (3,5) C) (5,4) D) (4,5)

Which of the following are examples of digraphs? a. bl c. fr b. ch d. tr Please select the best answer from the choices provided A B C D

Given: -1/2x > 6. Choose the solution set.