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1 year ago

5x = 40 what does the x going to equal

2 answers:

8 0

start by diving 5 from each side so you are lrft with x on the left side, 40/5=8. now our equation is x=8 and that's the answer!

zaharov [31]1 year ago

8 0

Answer:

$x=8$

Step-by-step explanation:

Given the following question:

$5x=40$

When solving one-step equations, you need to remember we are trying to isolate the variable. In this case to isolate the variable we need to divide both sides by 5.

$5x=40$
$5x\div5=x$
$40\div5=8$
$x=8$

Which means the value of x will be "8."

Hope this helps.

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Johnathan is driving from Houston to Seattle. After 3 hours, he has traveled 150 miles. After 7 hours, he has traveled 350 miles

Sunny_sXe [5.5K]

Answer:

50mph

Step-by-step explanation:

first divide 150 by 3 and you get 50

then divide 350 by 7 you get 50

and finally divide 500 by 10 and you get 50

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1 year ago

I’m not sure how to do this

Brums [2.3K]

Answer: lim as x → -5 of f(x) and g(x) = 300

Domain of f(x) and g(x) is All Real Numbers

f(-5) = 200

g(-5) = 300

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

The limit of f(x) as x approaches -5:

$f(x) =\dfrac{4x^3+500}{x+5}\\\\\\.\qquad =\dfrac{4(x^3+125)}{x+5}\\\\\\.\qquad =\dfrac{4(x^3+5^3)}{x+5}\qquad \text{we can factor the cubic}\\\\\\.\qquad =\dfrac{4(x+5)(x^2-5x+25)}{x+5}\\\\\\.\qquad =4(x^2-5x+25)\\\\\\\text{as x approaches -5, f(x) = }4[(-5)^2-5(-5)+25]\\\\.\qquad \qquad \qquad \qquad \qquad =4(25 + 25 + 25)\\\\.\qquad \qquad \qquad \qquad \qquad =4(75)\\\\.\qquad \qquad \qquad \qquad \qquad =300$

The limit of g(x) as x approaches -5:

g(x) = 4x² - 20x + 100

= 4(-5)² - 20(-5) + 100

= 100 + 100 + 100

= 300

There is a restriction at x = -5 for f(x), however, that discontinuity has been filled with the 200 at x = -5. So the domain is ALL REAL NUMBERs.

There are no restrictions on x for g(x) so the domain is ALL REAL NUMBERs.

5 0

2 years ago

If triangle RST and triangle XYZ are similar, which statement must be true?

Evgen [1.6K]

If triangle RST and triangle XYZ are similar, the statement that must be true is :
Angle R equals angle X

Triangle R S T
Triangle X Y Z

those three angles will be similar in this case

hope this helps

4 0

2 years ago

Read 2 more answers

he half-life of a certain radioactive substance is 14 days. There are 6.6 grams of the substance present initially. Which equati

babunello [35]

Answer:

First one

Step-by-step explanation:

The first one

y = 6.6 (1/2 ) ^n where n = the number of half lives

42 days/ 14 days/halflife = 3 halflives

5 0