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3 years ago

What is the solution to the proportion?

Mathematics

2 answers:

Helen [10]3 years ago

5 0

Answer:

x=8

Step-by-step explanation:

6÷15=0.4

x=8

x÷20

8÷20=0.4

PIT_PIT [208]3 years ago

4 0

Answer:

Step-by-step explanation:

X=8

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The expression (4x+5)(3x-7) is the factorization of what trinomial?

RUDIKE [14]

It's easy to find the trinomial. Just multiply (4x + 5) and (3x - 7) together.

$(4x + 5)(3x - 7) = 12x^{2} - 28x + 15x - 35 = 12x^{2} - 13x - 35$

So the final answer is $12x^{2} - 13x - 35$

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3 years ago

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Use the laws of logarithms and the values given below to evaluate the logarithmic expression.

Sidana [21]

Answer:

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Step-by-step explanation:

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3 years ago

At 3:00 PM a man 138 cm tall casts a shadow 149 cm long. At the same time, a tall building nearby casts a shadow 163 m long. How

Andre45 [30]

The building is 151 meters tall

<h3>How to determine the height of the building?</h3>

From the question, we have the following parameters about the building and the man

Man's height = 138 cm

Man's shadow = 149 cm

Building's shadow = 163 m

Based on the above parameters, we have the following equivalent ratio:

Ratio = Height : Shadow

So, we have:

Man's height : Man's shadow = Building's height : Building's shadow

Substitute the known values in the above equation

138 cm : 149 cm = Building's height : 163 m

Remove the units

138 : 149 = Building's height : 163

Express as fraction

138 /149 = Building's height/163

Multiply both sides by 163

Building's height = 163 * 138 /149

Evaluate the product

Building's height = 151 m

Hence, the building is 151 meters tall

So, the complete parameters are:

Man's height = 138 cm

Man's shadow = 149 cm

Building's shadow = 163 m

Building's height = 151 m

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1 year ago

1. A local pizzeria sold 65 pizzas yesterday. The owner offers the employees a bonus if the number of whole pizzas sold increase

sasho [114]

We want to increase by 15% so we want 100% plus 15% which means 115%

Since we want 115% lets make the calc:

65 pizzas ----------- 100%

x pizzas ------------- 115%

Multiply in cross

65 . 115 = 100.x

7475 = 100.x

x = 74,75

Since we cant sell 74 pizzas and 0,75 pizza we will sell 75 pizzas

So we need to sell 75 pizzas to employees receive the bonus

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3 years ago

Help please thank you!

erastova [34]

Angle B is 105 degrees, or answer B

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