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3 years ago

Simplify the expression by combining like terms. 1/2d - 3/4d + 3f - 2f

Mathematics

2 answers:

lutik1710 [3]3 years ago

8 0

Answer:

-1 /4 d - f

Step-by-step explanation:

Like terms imply that they have the same variables.

Therefore we grouped the "d"s together and the "f"s together.

1/2 d - 3/4 d + 3f - 2f

= (1/2 d - 3/4 d) + (3f - 2f)

= (1/2 - 3/4)d + (3 - 2)f

= -1 /4 d - f

Anit [1.1K]3 years ago

8 0

Answer:

-1 /4 d - f

Step-by-step explanation:

1/2 d - 3/4 d + 3f - 2f

= (1/2 d - 3/4 d) + (3f - 2f)

= (1/2 - 3/4)d + (3 - 2)f

= -1 /4 d - f

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TiliK225 [7]

Answer:

Step-by-step explanation:

I assume you need help with the first picture:

Let $x=\frac{a}{b} \\y=\frac{c}{d}$

Then

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3 years ago

Subtract: 2/3 - 3/8 <br><br> answer in reduced terms

yaroslaw [1]

The answer would be 7/24

You can start by finding a common denominator. Since the lowest common denominator 3 and 8 have in common is 24 then that would be your denominator.

Then you can cross multiply 3*3= 9 and 2*8=16

$\frac{16-9}{24}$

16-9= 7

7/24

Then you are left with your answer:

$\frac{7}{24}$ is already in reduced terms.

Hope this helps! :3

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4 years ago

Read 2 more answers

What is the value of log2 81?

mestny [16]

6.33985000288

i used a calculator

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3 years ago

a recipe for 12 apple- cinnamon muffins call for 1 cup of flour. The number of muffins that can be made varies directly with the

lara31 [8.8K]

Answer: 27 apple- cinnamon muffins

Step-by-step explanation:

1 cup of flour makes 12

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3 years ago

Find the number of distinct triangles with the measurements a = 8, b = 14, and A = 30°.

Maslowich

Answer: 2

Step-by-step explanation:

By the law of sines,

$\frac{\sin B}{b}=\frac{\sin A}{a} \\ \\ \frac{\sin B}{14}=\frac{\sin 30^{\circ}}{8} \\ \\ \frac{\sin B}{14}=\frac{1}{16} \\ \\ \sin B=\frac{14}{16} \\ \\ B=\sin^{-1} \left(\frac{14}{16} \right), 180^{\circ}-\sin^{-1} \left(\frac{14}{16} \right) \\ \\ B \approx 61.04^{\circ}, 118.96^{\circ}$

Since either of these values for B will form a triangle (as A+B will be less than 180 degrees), 2 triangles can be formed with these measurements.

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2 years ago