In September, 2,209 people visited the museum. In June, the number of visitors to the museum grew to 3,897. Which of the following uses rounding to the nearest hundred to estimate the change in the number of visitors?

a) 4,000 – 2,000
b) 4,000 – 2,200
c) 3,900 – 2,200
d) 3,800 – 2,300

3,900 – 2,200

Step-by-step explanation:

Given that,

In September, 2,209 people visited the museum.

In June, the number of visitors to the museum grew to 3,897.

2209 can be rounded off as 2200 to the nearest hundred place.

3,897 can be rounded off as 3900 to the nearest hundred place.

The required answer is :

3,900 – 2,200 = 1700

Hence, the correct option is (c).

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x