Answer:
The key to solving two-step equations is identifying the inverse operations that you need to perform. Thinking of an equivalent expression may help you in this process. Also, be sure to go back and check your solution for accuracy.
Example:
Solve: -18 - x = 22.
Do you know what you would have to do to the equation to solve for x?
Solution:
If we think, "-18 - x" is the same as "-x - 18," we can see that x has been multiplied by -1, and, then, 18 has been subtracted from it. To solve for x, we must undo each of these operations. We add 18, and then divide by -1. Now, let's look at the solution to this equation.
-18 - x = 22 • Original equation.
-18 - x + 18 = 22 + 18 • Add 18 to both sides.
-x = 40 • Complete the addition.
[tex]\frac{-x}{1}[/tex]= [tex]\frac{40}{1}[/tex] • Divide both sides by -1.
x = -40 • Complete the division.
Let's check the solution of -40.
-18 - (-40) = 22 • Substitute the value into the equation in parentheses!
-18 + 40 = 22 • Subtracting a negative is the same as adding a positive.
22 = 22 • Complete the addition.
hope this helps!
Answer:
see above
Step-by-step explanation:
❤️
1. (02.05)
Choose the missing step in the given solution to the inequality -x - 10 > 14 + 2x (1 point).
-X-10 > 14 + 2x
-3x -10 > 14
X<-8
-3x > 24
-3x < 4
-3x > -4
8
Answer:
-3x > 24
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
rational number?
square root 97square root 98, square root 99, square root 100
Answer:
square root 97 is 100, square is root 98 is 100, square root 99 is 100, square root 100 is 100
-3.5 x 0.2 = ??
I need help or I’m gonna fail
Answer: -0.7
Step-by-step explanation:
I hope this helps i don't want you to fail!
Answer:
O.7
Just use a calculator
Hope this helps you
2x+4=2x+5 ( YOU CAN ONLY CHANGE ONE TERM). MAKE THIS EQUATION INFINITELY MANY SOLUTIONS AND ONE SOLUTION
Answer & Step-by-step explanation:
2x + 4 = 2x + 5
To make this equation have infinitely many solutions, you would change the 5 on the right side of the equation to be a 4. This would cause both the expressions to be exactly the same, changing the solution to be infinitely many solutions. You could also change the 4 on the left side of the equation to be a 5.
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To make the equation have only one solution you would change the 2x on the left (or right) side of the equation to be anything other than 2x. For example, you could change the 2x on the right side of the equation to be 3x, making x equivalent to -1, which means that x only has one solution.
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Hope this helps!!!
State whether each function is a linear function. Write yes or no. Explain. f(x)=5/x+6
Answer:
yes
Step-by-step explanation:
its in y= mx+b form or f(x)= mx+b
Answer:
No, it is a non linear function.
Step-by-step explanation:
As the equation says:
f(x)=5/x+6
Demonstrating 5 in the numerator and x+6 in the denominator it is not a linear function. This is because the x variable is in the denominator which makes it fail to become a linear function. Have a wonderful dayy!!
-_-
Write the equation of a line perpendicular to 2x - y = 6 through the point (2, -1)
Answer:
[tex]y = - \frac{1}{2} x[/tex]
Step-by-step explanation:
Please see the attached picture for the full solution.
6, 11, 7, 4, 12, 15, 1 what is the median?
Answer:
7
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
rearrange the numbers from smallest to greatest then look for the middle number.
step by step explanition for all pleasee
I'll do the first three problems to get you started
=====================================================
Problem 40
Plug in x = 0 to find the y intercept
x+y = 5
0+y = 5
y = 5 is the y intercept
Plug in y = 0 to find the x intercept
x+y = 5
x+0 = 5
x = 5 is the x intercept
------------
Answer: The x intercept is 5. The y intercept is 5.=====================================================
Problem 41
Use the same idea here as well
Plug in x = 0 to get
x-y = 5
0-y = 5
-y = 5
y = -5 is the y intercept
Now plug in y = 0 to solve for x
x-y = 5
x-0 = 5
x = 5 is the x intercept
------------
Answer: The x intercept is 5. The y intercept is -5.=====================================================
Problem 42
Plug in x = 0 and solve for y
3x+4y = 12
3(0)+4y = 12
0+4y = 12
4y = 12
y = 12/4
y = 3 is the y intercept
Plug in y = 0 and solve for x
3x+4y = 12
3x+4(0) = 12
3x+0 = 12
3x = 12
x = 12/3
x = 4 is the x intercept
------------
Answer: The x intercept is 4. The y intercept is 3.Determine the value of the variables when simplifying and evaluating the expression (302)0 .
What is the value of m in the simplified power?
(302)0= 30m
m =
What is the value of (302)0?
(302)0 =
Any value that is raised to the power of zero is 1. The value of the expression given in its simplified form is 1
Exponents and functionsAny value that is raised to the power of zero is 1. Given the expression
(30^2)^0
Simplify
30^2 = 900
Substitute into the original function to have:
(30^2)^0 = 900^0
(30^2)^0 = 1
Hence the value of the expression given in its simplified form is 1
Learn more on exponents here: https://brainly.com/question/11975096
7. What Is the volume
of the rectangular
prism shown below
Greetings! Hope this helps!
Answer
D) 5633.712
__________
13.8 x 12.6 x 32.4
Have a good day!
_______________
A brainliest would help tons! :D
CAN SOMEONE ANSWER THISSS??!?!?!?!! please? i will be putting out a series of problems i need answered and you will get 15 pts each if you answer them fast
1. bassan spent 1 2/5 hours shopping he spent 1/6 of his time buying a birthday present. how much time did bassan spend picking out a birthday present?
Answer:
5
Step-by-step explanation:
Answer:
30min
Step-by-step explanation:
I need help with #13, with an explanation...please help <3
Answer:
Step-by-step explanation:
d= c/ pi
multiply both side by pi
d*pi = c
divide by d
pi= c/d
‼️WILL LIST BRAINLIEST ‼️Nick ran 4.8 miles on the treadmill in 0.6 hours. What is the average number of miles he ran per hour?
Answer:
4.8 divided by-____ is 8 i think lol
Step-by-step explanation:
Answer:
The average number of miles he ran per house is 8.
Step-by-step explanation:
4.8 divided by 0.6 = 8
a football team's score after the kicker hits a 3-point field goal
Answer:
8
Step-by-step explanation:
There are approximately 26 billion ounces of a water left in a natural spring, and every year humans consume about 150 million ounces of it. Let V stand for the volume (in millions of ounces) of spring water remaining, and t stand for the number of years since 2018. What linear equations could model the decreasing supply of water in this particular spring?
Answer:
V(t) = 26,000 - 15t
Step-by-step explanation:
Given the following :
Initial approximate volume of water = 26 billion ounces
Yearly consumption = 150 million ounces
Let V = volume remaining
Linear equation to model decreasing supply of water.
Volume left = Initial volume - consumption
Consumption = 150 million per year
Consumption after t years = 150 million * t
Volume left = 26,000,000,000 - 150,000,000t
V = 26,000,000,000 - 150,000,000t
Divide by 1,000,000
V(t) = 26,000 - 15t
15. Before oil is added to a certain road surface material, the other ingredients are mixed. The mixture contains
45% 3/4 inch stone and 32% % inch stone. The balance of the mixture is made up of sand. If the mixture weighs
15,000 pounds before the oil is added, how many pounds of each ingredient are in the mixture?
Answer:
sand = 3450 pounds
3/4 inch stones =6750 pounds
1 inch stones =4800 pounds.
Step-by-step explanation:
The mixture composition is :
45% three-quarter inch stones
32% inch stones and
sand for balance
The percent here is by mass of material used.
Weight of mixture is 15,000 pounds before oil addition.
Use the percent by weight for the two types of stones and calculate real values in pounds
Formula to apply is:
Mass percent = (mass of a material/ total mass of mixture) * 100
For 3/4 inch stones it will be:
[tex]0.45= \frac{x}{15000} *100\\\\0.45=\frac{x}{150} \\0.45*150=x\\x=6750[/tex]
The 3/4 inch stones weigh 6750 pounds
The 1 inch stones will be
[tex]32/100 * 15000 =4800[/tex]
The 1 inch stones weigh = 4800 pounds
Total for the two items : 4800+6750 =11550 pounds
The sand used weighs : 15000 - 11550 = 3450 pounds
PLEASE HELP I WILL MARK YOU BRAINLIEST
Answer:
C. $17.00
Step-by-step explanation:
Simplify 5(x - 6).
05x - 30
0 5x-6
O-X
Answer:
5x-30
Step-by-step explanation:
Expand. 5x-30
it's 5x-30
Answer:
The answer is 5x-30.
Step-by-step explanation:
Seven times a number is greater than 28.
Answer:
Inequality would be
7x>28
The answer to the inequality would be
X>4
Step-by-step explanation:
Divide 7 on Both sides
x>4
check
7(5)>28?
35>28☑️
pls help -
Caleb types 100 words in 5 minutes. What is the unit rate? 100 words to 5 minutes 5 minutes per 100 words 20 words per minute 1 minute to 20 words
Answer:
Unit rate= 20
words per minute/ 0.3
words per second
Step-by-step explanation:
We could work out the unit rate in 2 ways:
Per Minute or Per second.
First we will start of with per minute:
Rate=Word/minute=100/5=20
Answer:
100 words to 5 minutes
Step-by-step explanation:
describe the difference between a relationship and a function. When explaining the difference, identify the key factor the is use when determining which relationships are a function and which ones are not.
helpp, its due in like 5 min
Answer:
The main difference between a relation and a function is that a relation is a table in a relational database while a function is a set of statements to perform a specific task in a program.
Step-by-step explanation:
there u go
Mateo invested $4100 in a savings account with a yearly interest rate of 5%
for 15 years. How much simple interest did he earn?
A. $205.00
B. $307.50
C. $3075.00
$2050.00
Answer:
c
Step-by-step explanation:
Write a 5-question quiz for me about special pairs of angles...it can be about vertical angles or corresponding angles (etc) im offering 50 points and will mark you branliest oh! and the test can include ONLY ONE VOCABULARY QUESTION ABOUT ANGLES the rest has to be actual work(but honestly you dont have to do any actual work just make up questions)...plz this is really easy im just lazy....so yeah thxs in advance
1. How many degrees is a straight angle?
2. Angles whose measure sum up to 180 degrees.
3. Two angles whose sum is 90?
4. What is Adjacent Angles?
5. What is Vertically Opposite Angles?
I hope this helps :) can i get brainiest?
Do you need the answers for the questions ?
Which situation involving Raul’s bank account would be modeled by a positive number?
Raul deposited his paycheck.
Raul wrote a check to his grandmother.
Raul withdrew cash from an ATM.
Raul paid for groceries with his debit card.
Answer: deposited
Step-by-step explanation:
That means that he put in
Everything is was a withdrawal(taking out)
Answer:
Raul deposited his paycheck.
Step-by-step explanation:
The reason it's 'A' is because when you deposit your paycheck, you are depositing money.
I hope this helps!
Find an
equation for the perpendicular bisector of the line segment whose endpoints
are (-1, -2) and (-5,4).
Answer:
[tex]y=\frac{2}{3}x+3[/tex]
Step-by-step explanation:
Perpendicular Bisector
It's defined as a line that divides another line into two equal parts. The bisector passes through the midpoint of the line forming any angle, but if that angle is exactly 90°, then the bisector is also perpendicular.
We need to find the equation of the line that divides into equal parts the line with endpoints (-1, -2) and (-5,4) and is perpendicular to it.
First, let's find the slope of the line segment. The slope can be calculated with the formula:
[tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\displaystyle m=\frac{4-(-2)}{-5-(-1)}=\frac{6}{-4}=-\frac{3}{2}[/tex]
The line for the perpendicular bisector has a slope m2. Two perpendicular lines with slopes m1 and m2 must comply:
[tex]m_1.m_2=-1[/tex]
Solving for m2:
[tex]\displaystyle m_2=-\frac{1}{m_1}[/tex]
[tex]\displaystyle m_2=-\frac{1}{-\frac{3}{2}}=\frac{2}{3}[/tex]
The equation of the perpendicular bisector has the form:
[tex]y=\frac{2}{3}x+b[/tex]
Now we find the coordinates of the midpoint of the segment:
[tex]\displaystyle \bar x=\frac{-1-5}{2}=-3[/tex]
[tex]\displaystyle \bar y=\frac{4-2}{2}=1[/tex]
The midpoint is (-3,1). Using this point will allow us to find the value of b:
[tex]1=\frac{2}{3}(-3)+b[/tex]
[tex]b=1+2=3[/tex]
Thus, the equation for the perpendicular bisector is
[tex]\boxed{y=\frac{2}{3}x+3}[/tex]
What can you double and then add 5 to get 13?
Use the reciprocal property to solve for y: 15/y = 20/10
Answer:
15/2
Step-by-step explanation:
15/y = 20/10
Cross multiply
150=20y
y=15/2
The value of y will be;
⇒ y = 7.5
What is Multiplication?
To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
The expression is,
⇒ 15 / y = 20 / 10
Now,
Solve the expression for y by using reciprocal property as;
The expression is,
⇒ 15 / y = 20 / 10
Apply reciprocal property;
⇒ y / 15 = 10 / 20
⇒ y = 15 × 10/20
⇒ y = 15 × 1/2
⇒ y = 7.5
Thus, The value of y will be;
⇒ y = 7.5
Learn more about the reciprocal visit:
https://brainly.com/question/15791951
#SPJ2
Find the image of (2,7) after a reflection over the x-axis
Answer:
(2, -7)
Step-by-step explanation:
The reflecting over the x axis changes the y coordinate to its opposite.
*Hope this helped!! Have a nice day! : )*
A square box lid has an area of 40 square inches. Which is the best estimate of the length of one side?
Answer:
10 OR 8
Step-by-step explanation:
Area is length times width, so with that being said you could say 10 times 4 is 40 or you can say 8 times 5 is 40
Pan make $500 each week. She puts 20% of her weekly paycheck in savings. How many does she put in savings each week
Answer:
100$
Step-by-step explanation:
20 %of 500 =20×500:100 =10.000 :100 =100$
