University:
Missouri State University
Course:
MTH 103 | Intermediate Algebra
Academic year:

2019
Views:

117

Pages:

1
Author:

Jarrett Richard

Solve each problem. Homework. Name Date Period 1. Janet can spread the mulch at her house in 8 hours and Paul needs 10 hours to do the same job. How long will it-take them to spread the mulch if they work together 2. Lauren takes 5 hours to do a job that Elisa can do in 2 hours. If Lauren works for 20 minutes before Elisa joins her, how long will it take the two of them working together to finish Jlent 48 x 18 (+1) 40 x = 40 x + 4 4/4 Pal the job? Lauren 1900 201x - x + 1 = 40 3. The number of chairs on a ski lift is inversely proportional to the distance between them. A lift has 70 chairs when they are spaced 24 m apart. If 80 evenly-spaced chairs are used on the lift, how much space will be left between them? 120 4v + 2x + 5x ^ 2 * 6w * 0 1x < se0 x = 8 deg * U 80 On Thur 4. For piano wires under the same tension, the number of vibrations per second (frequency) of each wire is inversely proportional to the length of the wire. A wire 0.75 m long vibrates 480 times per second. wire that 300 times ? 80-1600 x = 21 5. The time it takes to fly from Los Angeles to New York varies inversely as sthe speed of the plane. If the trip takes 6 hours at 900 km/h, how long will it take at 800km / h ? l = 1, 2 3000 1.2m 6. The denominator of a t = (s * 40 ^ 2)/12 than twice the numerator. If 7 is added to both the mumerator and the denominator, the resulting fraction has a value of 7/10 Find the criginal fraction 0xiy, 20 - x/(2x - 1) 5400 t = 675 63/4 hours 2x-1+7 7. The numerator of a fraction is 4 more than twice the denominator. If two is subtracted from both the numerator and the denominator, the result is 8. Find the original fraction. 10(x + 7) = 7(2 * 16) (x + 7)/(xx + 6) = 7/10 3x + 70 = 14x + 42 2y = 4x 7 = x 13 Orign (2X + 4)/X (2x + 2)/(x - 2) = 8/1 New (2x + 4 - 2)/(x - 2) x + 2 = 8(x - 2) . 2y + 2 - 8x - 16 - 6x = - 18 x = 3 (2 * 3 + 4)/3 f - (36phi)/R 410 = I c 0.7 r - f = k/l t - (14w)/A c = (16 * x deg)/x 6 = k/(4x) 10/3 C = k/d 70 = K/24 emptyset (∞ + x) + 57.65 deg ((20 + varphi)/300 + x/120 = 1) * 60 k = 1680 k - k/2 ( 31m 4 4/4 I w,9 7/(2 * 7 - 1) = 7/(14 - 1)