Answer:
2/3x + y = -9
Step-by-step explanation:
-5 = -2/3(-6) + b
-5 = 4 + b
b = -9
y = -2/3x - 9
2/3x + y = -9
6=3 : 16=6 14=6 that should be right
Answer:
15 nickels and 8 dimes
Step-by-step explanation:
Create a system of equations where d is the number of dimes and n is the number of nickels:
0.1d + 0.05n = 1.55
n = d + 7
Solve with substitution by plugging in d + 7 as n:
0.1d + 0.05(d + 7) = 1.55
0.1d + 0.05d + 0.35= 1.55
0.15d + 0.35 = 1.55
0.15d= 1.2
d = 8
Plug in 8 as d to find n:
n = d + 7
n = 8 + 7
n = 15
So, there are 15 nickels and 8 dimes
Answer
do I add the numbers in faction form
Step-by-step explanation:
<u>1.</u> 4/10 + 30/100 = 7/10
<u>2.</u> 60/100+2/10 = 4/5
<u>3.</u> 9/10 + 10/100 = 1
<u>4.</u> 70/100+2/10 = 9/10
<u>5.</u> 1/10 + 40/100 = 1/2
You just have to make them common denominator and simplify