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2 years ago

The sum of twice a number and half the number is 10.help pls :"

Mathematics

1 answer:

Fiesta28 [93]2 years ago

5 0

Answer:

Step-by-step explanation:

Let x = the number

2x + (1/2)x = 10

(5/2)x = 10 Multiply both sides by 2/5

x = 4

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Step-by-step explanation:

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3 years ago

Find the domain and range of y=-5x-1

harina [27]

Answer:

$\mathrm{Domain\:of\:}\:-5x-1\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:$

$\mathrm{Range\:of\:}-5x-1:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:$

Step-by-step explanation:

Finding the domain:

The domain of a function is the set of possible input values for which the function is real and defined.

Given the function

$y=-5x-1$

The function has no undefined points nor domain constraints. Hence, the domain is

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$\mathrm{Domain\:of\:}\:-5x-1\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:$

Finding the range:

The range of a function is the set of possible output values (dependent variable y values) for which a function is defined.

The range of polynomials with odd degree is all the real numbers.

Hence, the domain is

$-\infty \:$

i.e.

$\mathrm{Range\:of\:}-5x-1:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:$

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3 years ago

25/9 converted into a mixed number equals

blagie [28]

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so you're mixed number would be 2
now to figure out you're numerator do 25-18=7
Now it would be 2 7/25
so you're mixed number,then the numerator,finally denomantor ALWAYS stays the same.
*IF YOU'RE NUMERATOR AND DENOMANTOR CAN BE REDUCED THEN REDUCE

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3 years ago

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Step-by-step explanation:

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2 years ago

The sum of twice a number and half the number is 10.help pls :"​

The sum of twice a number and half the number is 10.help pls :"