I think it is the first one
Answer:
a) 1.33*10^13
Step-by-step explanation:
In scientific notation, we have the starting number which is between 1 and 10 which is multiplied by a power of 10.
The starting number is the first digit, then a decimal is placed with the next two digits. The power of 10 is determined by counting from 0 to the first digit.
So 1.33*10^13 is the answer
Answer:
90
Step-by-step explanation:
M1 for ( ) 42/7 [x(7+3+5)] soi by 6
=90
Four scarves and six hats is $52.00
<span>4s+6h=52 </span>
<span>two hats is $1.00 more than the cost of one scarf. </span>
<span>2h=1s+1 </span>
<span>2h=s+1 </span>
<span>s=2h-1 </span>
<span>substitute for s </span>
<span>4s+6h=52 </span>
<span>4(2h-1)+6h=52 </span>
<span>8h-4+6h=52 </span>
<span>14h=56 </span>
<span>h=4 </span>
<span>s=2h-1 </span>
<span>s=8-1 </span>
<span>s=7 </span>
<span>a scarf cost $7 </span>
<span>a hat cost $4</span>
Answer:
34.5
Step-by-step explanation:
Add up all the numbers. 10+8+6+5=29. Then divide 29 by 100. Then multiply 10x What you got from 100/29. Sorry if thats confusing hope that helps!
