Example:
The sum of two consecutive integers is -15. What is the product of the two integers?
x = 1st consecutive integer
x + 1 = 2nd consecutive integer {consecutive integers increase by 1}
x + x + 1 = -15 {the sum of two consecutive integers is -15}
2x + 1 = -15 {combined like terms}
2x = -16 {subtracted 1 from each side}
x = -8 {divided each side by 2}
x + 1 = -7 {substituted -8, in for x, into x + 1}
-8 and -7 are the two consecutive integers
Their product is 56.
Answer:
13 protons
14 neutrons
13 electrons
Step-by-step explanation:
protons and electrons are mostly always the same
I am pretty sure the answer is the second option
A) n + d = 20
B) .05n + .10d = 1.40 Multiplying A) by -.10
A) -.1n -.1d = -2 Then adding it to B
B) .05n + .10d = 1.40
-.05n = -.60
n = 12 nickels
d = 8 dimes
