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Harlamova29_29 [7]

3 years ago

6

Bobby,Billy, and Barry smith are each one year apart in age. The sum of their ages is greater than the age of their father , who

is 60. How old the oldest brother can be?

2 answers:

Llana [10]3 years ago

7 0

The oldest son is 30 years old.

larisa86 [58]3 years ago

5 0

X + x + 1 + x + 2 > 60
3x + 3 > 60
3x > 57
x > 57/3
x > 19

x + 1 = 19 + 1 = 20
x + 2 = 19 + 2 = 21

oldest brother can be at least 21

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2 years ago

The difference between two numbers is 7194. If the subtrahend is 12,806, find the minuend.

valentina_108 [34]

<u>Answer:</u> The minuend is 20000

<u>Step-by-step explanation:</u>

To calculate the minuend, we use the equation:

$\text{Subtrahend}=\text{Minuend-Difference}$

We are given:

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Subtraend = 12806

Putting values in above equation, we get:

$\text{Minuend}=12806+7194\\\\\text{Minuend}=20000$

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3 0

2 years ago

What is the logarithmic form of the solution to 102t = 9?

Harman [31]

Equivalent equations are equations that have the same value

The equation in logarithmic form is $t = \frac{\log(9)}{2}$

<h3>How to rewrite the equation</h3>

The expression is given as:

$10^{2t} = 9$

Take the logarithm of both sides

$\log(10^{2t}) = \log(9)$

Apply the power rule of logarithm

$2t\log(10) = \log(9)$

Divide both sides by log(10)

$2t = \frac{\log(9)}{\log(10)}$

Apply change of base rule

$2t = \log_{10}(9)$

Divide both sides by 2

$t = \frac{\log_{10}(9)}{2}$

Rewrite as:

$t = \frac{\log(9)}{2}$

Hence, the equation in logarithmic form is $t = \frac{\log(9)}{2}$

Read more about logarithms at:

brainly.com/question/25710806

8 0

2 years ago

Suppose that y varies directly with x<br> and y = 10 when x = 20. What is y<br> when x = 15?

tresset_1 [31]

Answer: y = 7.5

Step-by-step explanation:

Suppose that y varies directly with x

That is, y∝x

Convert y∝x to a full equation by introducing a constant k to the right hand side.

Therefore, y = kx

Given that y = 10 and x = 20

Substitute y and x in the equation above. We have;

10 = k(20)

10 = 20k

20k = 10

k = 10/20

k = 0.5

Since k = 0.5, the equation y = kx becomes y = 0.5x

Now, to find y if x = 15, substitute x in equation y = 0.5x

Therefore, y = 0.5(15)

y = 7.5

5 0

2 years ago