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3 years ago

Race to get brainliest, need help!

Mathematics

2 answers:

Gemiola [76]3 years ago

7 0

Answer:

Original number is 86

Step-by-step explanation:

Original: 10x + y

Double reversed: 2(10y + x)

Constraints:

x + y = 14 ===> x = 14 - y

2(10y + x) + 10x + y = 222 ===> 21y + 12x = 222

Substitution to find y:

21y + 12x = 222

21y + 12(14 - y) = 222

21y + 168 - 12y = 222

9y + 168 = 222

9y = 54

y = 6

Substitution to find x:

x = 14 - y

x = 14 - 6

x = 8

Original: 10x + y

10(8) + (6)

80 + 6

Sophie [7]3 years ago

4 0

X = Tens place
y = Ones place
x+y=14
y=14-x
2(10y+x)+(10x+y)=222
20y+2x+10x+y=222
21y+12x=222
21(14-x)+12x=222
294-21x+12x=222
-9x = -72
x = 8
y = 14-8 =6
ANSWER: 86

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3 years ago

Read 2 more answers

Write 0.87 as a fraction in simplest form.

TEA [102]

Write the decimal number as a fraction
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4 years ago

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3 years ago

I need help with this problem PLEASE HELP

xxTIMURxx [149]

The domain of the function is: {-5, -3, -1, 1}

The range of the function is: {-5, -3, -1, 1}

<h3>How to Determine the Range and the Domain of a Function?</h3>

In any given graph that represents a function, the possible set of domain values are plotted on the x-axis (horizontal axis), while the possible set of corresponding range values are plotted on the y-axis (vertical axis).

Thus, the set of x-values (input values) on a graph is the domain of the function while the set of y-values (output values) is the range of the function.

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The set of y-values are: -5, -3, -1, and 1.

Therefore:

The domain of the function is: {-5, -3, -1, 1}

The range of the function is: {-5, -3, -1, 1}

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2 years ago

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Supposing the line graphed is y = 2x + 3, the equation of the different line is:

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