Answer
you cant have a remainder bigger then your divident
Step-by-step explanation:
Here's what we know:n + d = 20 (there are a total of 20 nickels and dimes).05n + .1d = 1.4 (total change equals $1.40) There are a couple of ways to solve this. You can go the elimination method by multiplying the second equation by an amount to get rid of a variable, or we can go substitution by isolating a variable in the first equation. I'll go with elimination in this case: -10(.05n + .1d = 1.4) this will cause the d-variable to equal 0: n + d = 20-.5n - d = -14------------------.5n = 6n = 12 Now that we know n, we can solve for d:12 + d = 20d = 8 Check:.05 * 12 + .1 + 8 = 1.4.6 + .8 = 1.41.4 = 1.4
B. is correct because 2/5 is less than 1/2
Answer:
<u>The answer is x = -2</u>
Step-by-step explanation:
Let's solve for x the equation -3(x+5)=-9, this way:
-3 (x + 5) = - 9
-3x - 15 = -9 (Solving the parenthesis)
-3x = -9 + 15 (Adding 15 at both sides)
-3x = 6
x = 6/-3 (Dividing by -3 at both sides)
x = -2
<u>The answer is x = -2</u>