Answer:
x=-5
Step-by-step explanation:
4x-2x = -10
2x = -10
x= -5
The solution for the equation 4x - 10 = 2x is x=-5.
What is an equation?
An equation is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
The given expression will be solved as:-
4x + 10 = 2x
Take the variables in the same side and solve for the value of x.
4x-2x = -10
Subtract the term 2x from the term 4x to get the value of x.
2x = -10
Divide the number -10 by 2 to get the exact value of x.
x = -5
Therefore, the solution for the equation 4x - 10 = 2x is x=-5.
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The equation P = 2m + 15 represents the price P (in dollars) of a bracelet, where m is the cost of the materials (in dollars). The price of a bracelet is $115. What is the cost of the materials? Explain your reasoning.
Answer:
50
Step-by-step explanation:
115 = p
115 = 2m + 15
-15 -15
100 = 2m
/2 /2
50 = m
If you take away like I did in this method it will get you answer (backwards PEMDAS)
Original Price $35
Sale Price $28
Find the percent of discount.
Answer:
-20%
Step-by-step explanation:
The percentage decrease from 35 to 28 is -20%.
It is a decrease that's why it is a negative number
20% discount is the percentage that was discounted from $35 giving you the sale cost of $28
what are some strategies for rational numbers.
Answer:
Simplify
Step-by-step explanation:
Find the value of x. Then find the angle measures of the triangle.
3x°
40°
Sum of angle
measures: 180°
Answer:
x=35°
3x= 105°
Step-by-step explanation:
[tex]40 + 3x + x = 180[/tex]
[tex]40 + 4x = 180[/tex]
[tex]4x = 180 - 40[/tex]
[tex]4x = 140[/tex]
[tex]x = \frac{140}{4} [/tex]
[tex]x = 35[/tex]
[tex]3x = 3(35) \\ 105[/tex]
help idk how to do math
use the distributive property
Answer:
Distributive property is when you multiply or add the numbers in the parentheses equally to the number outside the parentheses.
That probably isn't a good answer, here's what I found on google:
To “distribute” means to divide something or give a share or part of something. According to the distributive property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.
Step-by-step explanation:
I'll do #10 as an example:
(x-5)y
distribute the numbers- y(x)-y(5)
without the parentheses- yx-y5
you can't really get an answer by multiplying a number and a variable, or a variable and a variable, so you just leave them and take the parentheses.
Here's #11:
-4(2a-3b+c)
distribute the numbers- (-4*2a)-(-4*3b)+(-4c)
solve- -4*2= -8
-4*3= -12
-8a-(-12)b+4c
*I dunno how to use parentheses for negative numbers but what I did for distributing is pretty much the same thing
Hope this helps you.
how coordinates change when we add or subtract outside the function?
Answer:
if c is positive, the graph is shifted up. If c is negative, the graph is shifted down. Informally: Adding a positive number after the x outside the parentheses shifts the graph up, adding a negative (or subtracting) shifts the graph down.
Step-by-step explanation:
hope this helps
How do I find the x in this special triangle?
Answer:
x=5
Step-by-step explanation:
a^2+b^2=c^2
a=4
b=3
c=x
4^2+3^3=x^2
16+9=x^2
25=x^2
5=x
whats -5 5/8 divided by -4 7/12 as a fraction?
which one of these is. linear function
Logan owed his brother $7.50. For his birthday, Logan received $20 from his grandpa. After paying his brother back, how much money will Logan have?
Answer:
$12.50
Step-by-step explanation:
20 - 7.50=12.50
Answer:$12.5
Step-by-step explanation:
calculator
If it costs Melissa $8.20 to make a pie, how much should she charge for a pie? Round your answer to the nearest cent if necessary.
Answer:
$16.40
Step-by-step explanation:
simplify the expression 4x+3 (5y+x)
Answer:
7x + 15y
Step-by-step explanation:
4x+ 3 ( 5y + x)
Step 1: remove the brackets by multiplying 3 with (5y + x)
4x+ 15y + 3x
Step 2: add the 4x and 3x
7x + 15y
Answer:
[tex]=7x+15y[/tex]
Step-by-step explanation:
[tex]4x+3\left(5y+x\right)[/tex]
[tex]3(5y+x)[/tex]
[tex]15y+3x[/tex]
[tex]=4x+15y+3x[/tex]
[tex]4x+15y+3x[/tex]
[tex]7x+15y[/tex]
[tex]=7x+15y[/tex]
what two numbers multiply to -36 and add up to 5
Answer:
9 and -4
Step-by-step explanation:
Finding these 2 numbers can be found by guessing and checking. By doing this, it will get you the numbers 9 and -4.
First, test if they multiply to -36:
9(-4)
= -36
Then, check if they add up to 5:
9 + (-4)
= 5
So, 9 and -4 are the 2 numbers that multiply to -36 and add to 5
What is the percent increase ???? Help please
Answer:
25 percent increase
Step-by-step explanation:
im pretty sure
What is x- value of point A
A or B?
Andre and Elena are solving this system of equations.
Y=3x
Y=9x-30
Andre’s first step is to create a new system:
3y=9x
Y=9x-30
Do you agree with either first step?
A-both strategies work
B-only the first strategy works
C-only the second strategy works
D-neither strategies work.
Answer:
A-both works
Step-by-step explanation:
one can simply sub into the second equation from the first step's one and remove an unknown, making it easy to solve
Need help ASAP!!!Thanks
Answer:1144.2 for question 5
Step-by-step explanation:
3(x+5)=15
A.3
B.0
C.1/3
Answer:
x=0
Step-by-step explanation:
letter B
Answer:
B
Step-by-step explanation:
Take the three outaide the parentheses and distribute to both terms inside the parentheses. You would then get 3x+15= 15
subtract 15 from the left and right.
3x=0
Which means that x=0/3
So x=0
What is the Increasing Interval?
What is the Decreasing Interval?
What is the Maximum?
What is the Minimum?
What is the Axis of Symmetry?
Answer: The decreasing interval is
Step-by-step explanation:
Answer:
The decreasing interval is
Step-by-step explanation:
You have point D (4, 2) that is rotated 180 degrees about the origin, what are the coordinates of D'? Type answer as an ordered pair: (x, y)
Answer:
-4,-2 I think
Step-by-step explanation:
how we find persentage of 200/300
Which points are separated by a distance of 5
Answer:
A
Explanation
6-1=5
3-3=0
0+5=5
George bought 2.45 pounds of tofu and 1.62 pounds of fish. How many more pounds of tofu did he buy than fish?
Answer:
George has a seafood addiction
Step-by-step explanation:
y varies inversely with x. y=15 when x=10, find y when x=5
Please answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!
Answer:
x=143
Step-by-step explanation:
Using the rule vertical angles then the rule of corresponding angles, you can see that they are congruent.
Which of the following is a true statement about polygons?
A) Each line segment intersects exactly two other line segments
B) Each line segment intersects at least two other line segments
C) Each line segment intersects exactly one other line segment
D) Each line segment intersects at least one other line segment
Will mark as brainliest if correct!!
Answer:
A
Each side must intersect exactly two others sides but only at their endpoints. The sides must be noncollinear and have a common endpoint.
Use the percent proportion.
1. What number is 120% of 60?
A 20
B 72
C 7.2
D 2
Answer:
72
Step-by-step explanation:
use a percentage calculator! Hope this helped! <3
please help me limited time
Answer:
its 1
Step-by-step explanation:
Answer:
its number one
Step-by-step explanation:
thank you and I'm sure
Can the intersection of a plane and a line segment be a ray ?
Answer:
No, it can not. I searched Brainly and people have asked this question before which always ended in the same answer, no.
Step-by-step explanation:
For the function F(x) = 1/x+1 which of these could be a value of F(x) when x is close to -1?
Answer:
Option B, -10000
Step-by-step explanation:
Step 1: Find the number that would be valid
As the x value gets closer to -1, the y values go to positive and negative infinity. Therefore, the best value out of the options given would be -10,000 since it is the closest to negative infinity.
Answer: Option B, -10000