You are correct! You added the two amounts together. Combined the like terms, 7t +8t=15t and -1+5=4
False test with 10 questions
He saved $1.75 per book.
($57.75/7) - ($45.50/7)
$8.25 - $6.50 = $1.75
Answer:
Step-by-step explanation:
1=5-4+3-2-1;
2=(5-4+3-2)*1;
3=((5+4)/3) * (2-1);
4=(5+4-3-2)*1;
5=5*(4-3)*(2-1);
6=5-4+(3*2)-1;
7=5+4-3+2-1;
8=(5+4-3+2)*1;
9=5+4+3-2-1;
10=5+4+(3-2)*1;
11=5+4+3-2+1;
12=(5+4-3)*(2*1);
13=((5+4-3)*2)+1;
14=(5+4+3+2)*1;
15=5+4+3+2+1;
16=5+4+(3*2)+1;
17=5+(4*3)*(2-1);
18=5+(4*3)+2-1;
19=(5*4)-3+(2*1);
20=(5*4)-3+2+1;
21=(5*4)+3-(2*1);
22=(5*4)+3-2+1;
23=(5*4)+3*(2-1);
24=(5*4)+3+2-1;
25=(5*4)+3+(2*1);
26=(5*4)+3+2+1;
27=(5*4)+(3*2)+1;
28=5+(4*3*2)-1;
29=5+(4*3*2*1);
30=5+(4*3*2)+1;
31=((5*4*3)/2)+1;
32=5*(4+3)-2-1;
33=5*(4+3)-(2*1);
34=5*(4+3)-2+1;
35=5*(4+3)*(2-1);
36=5*(4+3)+2-1;
37=5*(4+3)+(2*1);
38=5*(4+3)+2+1;
(no equation for 39);
40=5*(4+3+2-1)
Answer:
The best rational approximation for the square root of 55 is 7.5.
Let me know if this helps!
