She would have a total of 40 stamps.
9/10 + 7/100
find the common denominator for 9/10 which is 100
multiply by 10 for 9/10
(9)(10)=90
(10)(10)=100
90/100+7/100
Answer:
97/100
8 nickels.
<span>4 dimes. </span>
<span>1 quarter. 1 dime. 1 nickel. </span>
<span>1 quarter. 3 nickels. </span>
<span>3 dimes. 2 nickels. </span>
<span>2 dimes. 4 nickels. </span>
<span>1 dime. 6 nickels.
7 different ways</span>
Salary because it depends on how much the plant cost
Answer:
The mean of the test is 65
Step-by-step explanation:
Let the mean be x and SD be y
3 SD BELOW the mean means that we are taking away 3 SD FROM the mean
Mathematically, we have that as;
x - 3y = 41 •••••(i)
73 is 1 SD above mean
Mathematically;
x + y = 73 ••••••••(ii)
So let us solve both equations simultaneously
Simply multiply equation ii by 3 then add to i
x - 3y = 41
3x + 3y =219
4x = 41 + 219
4x = 260
x = 260/4
x = 65
