kyrabright187
kyrabright187 kyrabright187
  • 04-07-2021
  • Mathematics
contestada

help and I'll follow you ​

help and Ill follow you class=

Respuesta :

Samson2007
Samson2007 Samson2007
  • 04-07-2021

Answer:

12 nickels and 9 dimes

Step-by-step explanation:

1/ We have: n + d = 21 <=> d = 21 - n or opposite (n = 21 - d)

2/ We have: 0.05n + 0.10d = 1.50 and then we will put 1/ into 2/

=> 0.05n + 0.10(21 - n) = 1.50

=> 0.05n + 2.1 - 0.1n = 1.5

=> -0.05n = -0.6

=> n = 12

Nevertheless, d = 21 - n = 21 - 12 = 9

Answer Link

Otras preguntas

Find the unit rate. 21 3/4 meters in 2 1/2 hours The unit rate is meters per hour.
Could you help me I’m starting to fail :’(
6(2x-3) - 2(2x+1)can someone get an answer for that ASAP plsno links :)​
A line has a slope of 8 and a y -intercept of 5. What is its equation in slope -intercept form? Write your answer using integers, proper fractions, and improper
Making a donation in her wallet.
find the actual distance between cities.
Light sources create rays of light. These rays leave the source and travel in a line until they hit a surface. A. broken В. straight C. curved D. bent
Help me plsssssssssssssssssssssssssss
What do the particles of water look like at A and B? A. B. C. D.
How is the Great Pyramid different from the other sixWonders?​