Answer:
12 inches
Step-by-step explanation:
Set up an equation:
Variable x = height of the scale model
3/18 = x/72
Cross multiply:
3 × 72 = 18 × x
216 = 18x
Divide both sides by 18:
12
Answer:
I'm not so sure what you mean from your question but if we discussed the Average of 11 and 35( positive integers), we would say that it's 23<u>.</u>
Answer:
x= 1
y= -3
Step-by-step explanation:
multiply them to get common factor for y or x:
3(7y+10x=-11)
10(4y-3x=-15)
21y+30x=-33
40y-30x=-150 <em>x's cancel out so solve for y</em>
61y = -183
/61 /61
y = -3 <em> insert y into either equation and solve for x</em>
<em />
<em>4(-3) -3x=-15</em>
<em>x = 1</em>