Phổ biến >

Two airplanes leave at the same time from airports that are 880 miles apart from each other. If one plane travels 126 miles per hour faster than the other and they pass each other in 2 hours, how fast is each plane traveling?

Lời Giải

Lời Giải

first plan e^{'} s speed : 283

second plan e^{'} s speed : 157

Các bước giải pháp

Translate the problem into an equation:

x \cdot 2 + (x - 126) \cdot 2 = 880

Giải

x, x \cdot 2 + (x - 126) \cdot 2 = 880 : x = 283

Tìm speed

first plan e^{'} s speed : 283

second plan e^{'} s speed : 157

Ví dụ phổ biến

Carter opened a savings account and deposited 400.00 as principal. The account earns 11% interest, compounded annually. What is the balance after 6 years?7 times a number increased by 4 times the number Question 6, 10.1.41:The area of a circle is 237 square meters. Find the bán kính Suppose that 5500 is placed in an account that pays 2% interest compounded each year. Assume that no withdrawals are made from the account. Find the amount in the account at the end of 2 years.The product of two consecutive even numbers is 12 more than the square of the smaller number. find the numbers