Answer:
A and E
Step-by-step explanation:
Death Valley and Alaska
73+42=115
134+15=149
Answer: 72
Step-by-step explanation: so you do a line = line method the lines should look like they are fractions.
you do it for the both numbers the percent is always out of 100.
it should look like this
40% ?
--------- = -----------
100% 180
then you cross multiply 40 and 180 and than divide it by 100. your answer should be 72. you later replace the ? with 72
you know this because It is smaller than 180 and its bigger than the number 40.
Answer:
200 dollars,
I am assuming that your question goes like this: "Kiersten runs a website that helps people learn programming. Every month, Kiersten reveives a subscription fee of $10, $10 from each of the subscribers to her website. Last month, the website had 100 subscribers. This month, 30 new members joined the website, and 10 members cancelled their subscription. How much money will Kiersten's online business earn this month?
Step-by-step explanation:
Since her website had 100 subscribers last month, she earned $1000 (100 x 10). This month, 30 members joined and 10 members left, so in total, she gained 20 subscribers for a total of 120 subscribers this month. So she made 1200 dollars this month (100 x 120). She earned 200 more dollars this month since 1200-1000=20.
Answer: 8 minutes, 16 minutes, 24 minutes, 32 minutes
Step-by-step explanation: 12x2=24. 8x2=16. 12x3=36. 8x3=24. 12x4=48. 8x4=32.
Answer: The ladder would reach 8.9 meters up the building
Step-by-step explanation: Please refer to the attached diagram.
The ladder is placed on a wall, which is represented by line AB. It's distance from the base of the building is represented by line CB. To calculate how high up the ladder would reach on the building, we would need to calculate the value of line AC, which has been labelled as b.
What we have as shown in the diagram is a right angled triangle with the Hypotenuse given as 9 and one of the other two sides is given as 1.
We shall apply the Pythagoras theorem which states that
AB² = AC² + CB²
Where AB is the hypotenuse and AC and CB are the two other sides.
9² = b² + 1²
81 = b² + 1
Subtract 1 from both sides of the equation
80 = b²
Add the square root sign to both sides of the equation
√80 = b
8.9443 = b
Approximately, b = 8.9 meters
Therefore the ladder would reach up to 8.9 meters on the building
