Answer:
Stefan spend originally $110 and the money stefan make by selling the bicycle and helmet to jin is $22 .
Step-by-step explanation:
As given
Stefan sells jin a bicycle for $114 and a helmet for $18.
Total cost of the bicycle and helmet = $114 + $18
= $132
The total cost for jin is 120% of what stefan spent originally to buy the bike and helmet.
120% is written in the decimal form.
= 1.20
Let us assume that the Stefan spend originally for bike and helmets be x.
Than the equation becomes
1.20 × x = 132
1.20x = 132
x = $110
Therefore stefan spend originally be $110 .
Now find out how much money did he make by selling the bicycle and helmet to jin .
Money make by Stefan = Total selling cost of helmet and bicycle - Total amount of stefan spends for purchasing.
Money make by Stefan = 132 - 110
Money make by Stefan = $22
Therefore the money stefan make by selling the bicycle and helmet to jin is $22 .
Answer:
28,500,000 into scientific notation is 2.85 x 10⁷
2.85 x 100 in scientific notation is 2.85 x 10²
if you mean the multiplication symbol, it just means to multiply. otherwise, there i don't see an x anywhere else
You can first find the values of each of the function individually and add the two function up.
Find the radius, then double the radius measurement to find the diameter.
STEP 1:
find the radius
A= πr^2
plug in known numbers
68= (3.14)r^2
divide both sides by 3.14
21.6560509554= r^2
take the square root of both sides
4.6536062312 cm= r
STEP 2:
diameter equals two times the radius
D= 2 * 4.6536062312
D= 9.3072124625 cm (9.3 cm rounded to nearest tenth)
ANSWER: The diameter is 9.3072124625 cm (9.3 cm rounded to the nearest tenth)
Hope this helps! :)
Answer:
180 km
Step-by-step explanation:
1 cm=12 km
15 cm=12×15=180 km