Answer:
Step-by-step explanation:
Apply <u>PEMDAS</u> order of operations:
→ Parentheses
→ Exponents
→ Multiplication
→ Division
→ Addition
→ Subtraction
________________
<u>1) Parentheses:</u>
<u>2) Exponents:</u>
<u>3) Multiplication/Division:</u>
Convert to fraction:
Multiply 2 × 2, and 5 × 1:
Convert to fraction:
Apply fraction rule:
Multiply 4 × 1 and 5 × 3:
<u>4) Addition/ Subtraction:</u>
Finally, Convert fraction to mixed number:
<u>___________________________</u>
Answer:
2.6 hours.
Step-by-step explanation:
That would be 1.8 hours plus 4 * 12 = 48 minutes.
48 minutes = 48/60 = 0.8 hours.
Total is 1.8 + 0.8 = 2.6 hours.
Money= how many hours
$4= 1h
$8=2h
$12=3h
$16=4h
$20=5h
$24=6h
l hope that helps :)
Answer:
so 2a+3b=±13
Step-by-step explanation:
4a²+9b²=97
ab=6
2a+3b=?
by using formula
(a+b)²=a²+b²+2ab
(2a+3b)²=(2a)²+(3b)²+2(2a)(3b)
(2a+3b)²=4a²+9b²+12ab
putting values
(2a+3b)²=97+12(6)
(2a+3b)²=97+72
(2a+3b)²=169
taking square root on both sides
√(2a+3b)²=√169
2a+3b=±13
i hope it will help you