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3 years ago

a number with 2 consecutive natural digits, how many units will it increase if written in reverse order. Detail solution pls

Mathematics

1 answer:

svetlana [45]3 years ago

5 0

Answer:

It will increase by 9 units.

Step-by-step explanation:

We can write the lowest number as 10a + (a + 1) and the highest is the reverse which is 10(a + 1) + a.

Subtracting:

10(a + 1) + a - (10a + a +1)

= 10a + 10 + a - 10a - a - 1

= 10a - 10a + a - a + 10 - 1

= 10 - 1

= 9.

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1 year ago

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3 years ago

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2 years ago

Determine f(-1) if the graph of f(x) is given below.

-BARSIC- [3]

Answer:

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Step-by-step explanation:

Given

The attached graph

Required

$f(-1)$

This is the point where

$x = -1$

On the attached graph;

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2 years ago

Hunter did not want to spend more than 150$ for a flight from Reno to Los Angeles. Write the inequality that models this situati

Jobisdone [24]

Answer:

$(a)\ x < 150$

$(b)\ x = 149; x = 148$

Step-by-step explanation:

Given

$Amount = 150$ --- not more than

$x \to$ spending

Solving (a): Represent as an inequality

Not more than means <

So, the inequality is:

$Spending < Amount$

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Solving (b): The first two possible solutions

These are the numbers closest to 150 i.e. 149 and 148

Hence, $x = 149; x = 148$

7 0

3 years ago