Given:
The change all in nickels and pennies.
Let the number of nickels = x
Let the number of pennies = y
Total coins = 31
so, x + y = 31
1 nickel = 5 cents
1 penny = 1 cent
The change = $0.87 = 87 cents
so, 5x + y = 87
so, we have the following system of equations:
So, the number of nickels = x = 14
And the number of pennies = y = 17
Answer:
Step-by-step explanation:
we have
----> equation A
----> equation B
Solve the system by substitution
step 1
isolate the variable x in the equation A
----> equation A1
step 2
Substitute the equation A1 in the equation B
Solve for y
Answer:
9
Step-by-step explanation:
15 - 6 = 9
plz give brainliest
Answer:
<h2>Let the number is = X </h2><h2>Two thirds of the number = 2x/3</h2><h2 /><h2>According to the problem given,</h2><h2>x+ 2x/3 = 55</h2><h2>( 3x + 2x ) /3 = 55</h2><h2>5x /3 = 55</h2><h2>x = ( 55 × 3 ) /5</h2><h2>x = 11 × 3</h2><h2>x = 33 </h2>
<h2>Therefore,</h2><h2>Required number = x = 33</h2>
Answer:
A
Step-by-step explanation:
This graph represents the inequality x < 2. you may be confused as to why the answer is not x ≤ 2, but the circle at the start of the line is not shaded in. This tells us that an answer to this inequality cannot be x
