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mojhsa [17]
3 years ago
6

Express the fractions 1/2, 3/16, and 7/8 with an LCDA.8/16 3/16 14/16B. 1/4 3/4 7/4C. 1/32 3/32 732D. 4/8 6/8 14/8

Mathematics
1 answer:
NISA [10]3 years ago
3 0
The least (or lowest) common denominator of 3, 16 and 8 is 16. That already points us to answer A.

Checking for each fraction:

1/2 * 8/8 = 8/16
3/16 * 1/1 = 3/16
7/8 * 2/2 = 14/16

Yep. Answer A.
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Marlena bought 1 2/3 pounds of French Roast coffee and 3 1/8 pounds of Columbian coffee and paid $31.25. Rowen bought 2 5/12 cup
docker41 [41]

Answer:

$4.50 for French Roast

$7.60 for Columbian

Step-by-step explanation:

tried substitution and elimination method but got different answers to I graphed these equations and found the point of intersection

5/3x + 25/8y = 31.25

29/12x + 9/16y = 15.15

point of intersection (4.5, 7.6)

6 0
2 years ago
At a​ little-known vacation​ spot, taxi fares are a bargain. A 18​-mile taxi ride takes 21 minutes and costs ​$12.60. You want t
nordsb [41]

Given :

A 18​-mile taxi ride takes 21 minutes and costs ​$12.60.

To Find :

The cost of a 39​- mile taxi ride. What unit price do you​ need.

Solution :

Unit price per mile :

p=\dfrac{12.60}{18}\\\\p = \$0.7\ /mile

Cost of 39 mile taxi ride :

C = 39\times p\\\\C=39\times 0.7\\\\C=\$27.3

Therefore, unit price is $27.3 and unit price is $0.7 / mile .

Hence, this is the required solution.

8 0
2 years ago
Use logarithmic differentiation to find dy/dx if y=(cosx)sinx. Write the derivative in terms of x only. Show all your work.
gladu [14]

Step-by-step explanation:

y = (cos x)^(sin x)

Take log both sides.

ln y = ln ((cos x)^(sin x))

ln y = (sin x) ln (cos x)

Take derivative.

1/y dy/dx = (sin x) (1/cos x) (-sin x) + (cos x) ln (cos x)

dy/dx = y [ (cos x) ln (cos x) − sin x tan x ]

dy/dx = (cos x)^(sin x) [ (cos x) ln (cos x) − sin x tan x ]

Your answer is correct.

7 0
3 years ago
Read 2 more answers
How many groups of 15 minutes are there in 1 3/4 hours​
gulaghasi [49]

Answer:

7 groups

Step-by-step explanation:

1 hour = 60 minutes

3/4 of an hour = 3/4(60) = 45 minutes

therefore, 1 3/4 hours is 105 minutes

105 divided by 15 is 7

8 0
3 years ago
If 2x – 1 is a factor of 16x4<br> 24x3 + 2x + f, find f.
Nastasia [14]

Answer:

f = -5

Step-by-step explanation:

If 2x – 1 is a factor of 16x4 + 24x3 + 2x + f, find f.

If 2x - 1 = 16x⁴ + 24x³ + 2x + f, find f.

2x - 1 = 0

2x = 1

x = 1/2

Hence

f(1/2) = 16(1/2)⁴ + 24(1/2)³ + 2(1/2) + f

= 16(1/16) + 24(1/8) + 1 + f

= 1 + 3 + 1 + f

= 5+ f

f = -5

7 0
2 years ago
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