6. Three hairdressers received $57.40 in tips to share between them. They share this money in the ratio - id1843997320230126 от vanschool 26.01.2023 20:04

Question

Алгебра: 6. Three hairdressers received $57.40 in tips to share between them. They share this money in the ratio of the amount of time each of them worked. Sasha worked for 2 hours. Munisa worked for 3 hours and Raya worked for 4 hours. Calculate the amount of money each hairdresser gets.

vanschool · Accepted Answer

Пусть скорость пешехода х км/ч
Тогда расстояние от А до В
3*х
Время, затраченное им на обратный путь
16:х + (3х -16):(х-1)
16:х + (3х -16):(х-1) =3 +1/15
16:х + (3х - 16):(х-1) =46/15
умножим обе части уравнения на 15х(х-1), чтобы избавиться от дробей.
16*15(х-1) +15х (3х - 16)=46 х(х-1)240х-240 +45х²-240х=46х² -46х46х² -45х² -46х +240 =0
х² - 46х +240 =0D = b 2 - 4ac = 1156
√D = 34
х₁=40 ( не подходит для скорости пешехода)
х₂=6 км/чS=vt=6*3=18 кмПроверка
16:6 + 2:5= 8/3+ 2/5= 40/15 +6/15=46/15=3 и 1/15 часа3 и 1/15 -3= 1/15 =4 минуты

6. Three hairdressers received $57.40 in tips to share between them. They share this money in the ratio of the amount of time each of them worked. Sasha worked for 2 hours. Munisa worked for 3 hours and Raya worked for 4 hours. Calculate the amount of money each hairdresser gets.

MOGZ ответил

6. Three hairdressers received $57.40 in tips to share between them. They share this money in the ratio of the amount of time each of them worked. Sasha worked for
2 hours. Munisa worked for 3 hours and Raya worked for 4 hours. Calculate the
amount of money each hairdresser gets.