<span>4 sweets cost 28
so 28/4 = 7 per sweet costs
So 7 sweets will be: 7 x 7 =49
Answer 7 sweets cost 49</span>
Answer:
20%
Step-by-step explanation:
We are asked to find the proportion of of scores in a normal distribution between the mean (z = 0.00) and z = +0.52.
We will use normal distribution table to find area under normal distribution curve corresponding to given score as:
Using normal distribution table, we will get:
Therefore, approximately 20% of scores in a normal distribution between the given z-scores.
There is no table you might need to re - upload
Value of the coin times number of coins summed up equal total value
so since we have "$2.10 in all"...
0.05n + 0.25q = 2.10
and we are told that there are "four times as many quarters as nickels"
this translates to
q = 4n
0.05n + 0.25q = 2.10
and
q = 4n
are your two equations that could be used to solve this problem
if you would like to know how many nickels and how many quarters there are, plug in q = 4n into the first equation and get
0.05n + 0.25(4n) = 2.10
multiply
0.05n + 1n = 2.10
add like terms
1.05n = 2.10
divide both sides by 1.05
n = 2.10/1.05 = 2
then plug that back into
q = 4n
so
q = 4(2) = 8
therefore you have
2 nickels
and
8 quarters
12.56
To find the circumference of a circle, the formula is diameter • π. The diameter is twice the radius, so first you must multiply 2 • 2 = 4. So the diameter is 4.
The question states to use 3.14 instead of π, so from here we multiply 4, the diameter, by 3.14 to find the circumference.
4 • 3.14 = 12.56, so the circumference is 12.56