Answer:
1
Step-by-step explanation:
because the is an invisible 1 in an letter
please help. thank you
Answer:
ur welcome
Step-by-step explanation:
dam bought 6 deli sandwiches for
$5.75 each. About how much will the
sandwiches cost?
bigail
The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with 195 grams of a
radioactive isotope, how much will be left after 5 half-lives?
Use the calculator provided and round your answer to the nearest gram.
grams
Answer:
divide 195 by 2 , 5 times. Or 195 × 0.5^5
Solve for x:
4(1 – x) + 2 x = -3( x + 1)
Answer:
4(1 – x) + 2 x = -3( x + 1)
first do 4 time 1= 4
then do 4 times x =4x
now the equation should look like this
4-4x+2x=-3(x+1)
then do the other side of the equation
-3(x+1)
=-3x-3
Now collect the like terms:
-4x-2x
now the equation should look like this
4-2x=-3x-3
now add 3x add on both sides
4-2x+3x=-3
put the 4 on the other side
-2x+3x=-3-4
now again collect the like terms (-2x+3x=1 which is just x and -3-4 =-7)
x=-7
answer
x=-7
Answer:
[tex]x=-7[/tex] PLEASE MARK ME AS BRAINLIEST
Step-by-step explanation:
[tex]4(1-x)+2x=-3(x+1)[/tex]
Distribute 4 through the parentheses
[tex]4-4x+2x=-3(x+1)[/tex]
Distribute -3 through the parentheses
[tex]4-4x+2x=-3x-3[/tex]
Collect like terms
[tex]-4x+2x[/tex]
Collect like terms by calculating the sum or difference of their coefficient
[tex](-4+2)x[/tex]
Calculate the sum
[tex]-2x[/tex]
[tex]4-2x=-3x-3[/tex]
Move variable to the left hand side and change its sign
[tex]4-2x+3x=-3[/tex]
Why move an expression to the right?
We want to move an expression to the right to write the equation in a specific way.
The opposite needs to be added to both sides to preserve the relation between the sides. That is called the addition and subtraction property of equality/inequality
Step 1
Example
take the equation:
[tex]x+a=b[/tex]
We want the expression a to be on the right hand side of the equation.
Step 1
example(cont)
To move the expression to the right -hand side, use the addition property , and add -a to both sides of the equation:
[tex]x+a+(-a)=b+(-a)[/tex]
Simplify the left hand side and remove the parentheses on the right hand side:
[tex]x+a+(-a)=b+(-a)\\x=b-a[/tex]
Now the expression a is on the right hand side :
[tex]x=b-a[/tex]
Step 2:
Notice! when comparing the beginning and the ending equation, it seems like we just moved the expression to the right hand side and changed its sign:
[tex]x+a=b\\x=b-a[/tex]
This is a shorter way to use the same property.
Now came back to the original equation
[tex]4-2x+3x=-3[/tex]
Move constant to to the right hand side and change its sign
[tex]-2x+3x=-3-4[/tex]
collect like terms
[tex]x=-3-4[/tex]
calculate the difference
[tex]x=-7[/tex]
Why move a constant to the right?
We want to move a constant to the right because the mathematicians agreed upon a convention that the constants in the equation and inequalities always need to be on the right-hand side.
The opposite needs to be added to both sides to preserve the relation between the sides. That is called the addition and subtraction property of equality/inequality.
Step 1
example
Take the equation:
[tex]x+3=5[/tex]
We want the constant 3to be on the right hand side of the equation.
Step 1
example (cont)
To move the constant to the right-hand side, use the addition property, and add -3 to both sides of the equation:
[tex]x+3+(-3)=5+(-3)[/tex]
Simplify the left-hand side and remove the parentheses on the right - hand side:
[tex]x+3+(-3)=5+(-3)\\x=5- 3[/tex]
Now , all the constants are on the right- hand side:
[tex]x=5-3[/tex]
Step 2
Notice! when comparing the beginning and the ending equation, it seems like we just moved the constants to the right hand side and change its sign:
[tex]x+3=5\\x=5-3[/tex]
This is a shorter way to use the same property.
PLEASE MARK ME AS BRAINLIEST
The two tables below show the amount of tip, y, included on a bill charging x dollars.
Restaurant A
х
10
20
30
5
Restaurant B
х
25
50
75
y
1
2.
3
✓x
10
15
Which compares the slopes of the lines created by the tables?
O The slope of the line for Restaurant B is 5 times greater than the slope of the line for Restaurant A.
O The slope of the line for Restaurant B is 2 times greater than the slope of the line for Restaurant A.
The slope of the line for Restaurant B is 5 times greater than sie slope of the line for Restaurant A.
The slope of the line for Restaurant B is 10 times greater than the slope of the line for Restaurant A.
Answer:it’s B I did the test
Step-by-step explanation:
What is the solution to 31-3x + 9) = -18?
Ox=-5
O x=5 or x= 1
O x= -5 or x=1
O no solution
Hurry please
Step-by-step explanation:
31-3x+9=-18
31-3x+9+18=0
58-3x=0
-3x=-58
x=-58/-3
x=19.33
so the answer is no solution
not sure about the answer
How do you do this? Please give an example to #1 and explain thoroughly please. I have asked multiple times and gotten answers I do not understand! 20 pts. Pleaseee help
Answer:
y=2x
Step-by-step explanation:
y = kx is the format of the graph we are looking for (as told in the instructions) where k is the variable we are supposed to find (like y = x, y=2x, y=3x, etc)
Note that as x increases by 1, y increases by 2. We can see that by writing a table of the points of points that the line given intersects (picture below). We can see that by the values of the x-axis and the y-axis. Why does this happen? This is because y =2x for each value of x. We notice that in our table.
Therefore, the equation is y=2x. I hope this helps! If you still have questions, ask me in the comments!
tell whether the ordered pair is a solution to the system of inequalities
Answer:
Yes, it is
Step-by-step explanation:
The solution to the inequality are the sets of points that lie where we have the shaded part
The coordinates (3,0) lie on the shaded part and thus will be a solution to the set of inequalities
PLS HELP IM SO STUCK
if daisy mixes 50ml of oragne juice to 200ml. what is the ration of orange juice to water
Answer:
1 : 4
Step-by-step explanation:
The ratio of
orange : water
= 50 : 200 ( divide both parts by 50 )
= 1 : 4
did anyone know that 11+11 is the same thing as 10+10
because 11+11=22
:0 my brians hurt
Also That’s cool but did you know lliberty mutual customizes your carinsurance topay for what you need
Find cot 0 if tan 0 = 2
Answer:
1/2
Step-by-step explanation:
cot0=1/tan0
plug in tan0=2
cot0=1/2
3.41 rounded to the nearest tenth please help
Answer:
3.4
Step-by-step explanation:
bruh, who else has exams?
Answer:
I have exams too well cba's
Step-by-step explanation:
Answer:
Girl I have exams I don't like them
Step-by-step explanation:
Kedwin can watch movies at home in two ways. He can order unlimited online movies for $10 a month. He could also go to the local movie rental store and rent 5 movies for $4.00. The system representing this scenario is graphed below.
How many movies does Kedwin need to rent each month to make the online option a better deal?
a. 10 movies per month
b. 10.40 movies per month
c. 12.5 movies per month
d. 13 movies per month
Answer:
I believe the answer is D.)13 movies per month.
Step-by-step explanation:
Answer:
D. 13 movies per month.
Step-by-step explanation:
What's the answer? I need help asap
The two triangles are congruent through AA (angle-angle proportionality theorem) therefore all the sides are congruent to each other.
In this case:
2y = 5y - 7
2y - 5y = -7
-3y = -7
y = -7/-3
y = 7/3
Can someone please help me? If it is correct I will give you Brainliest
Thank you
Answer:
8(2p-3)
Step-by-step explanation:
The 2 equations map to the same line.
X ≤ 2 x ≥ 2 -4 < x ≤ -2 -4 < , x, ≤ -2 -4 ≤ x ≤ -2 What is the domain of the function?
Answer:
really hard and strong but am interested
please help me on this! will give you brainliest, ty:,
Answer: 4^9
Step-by-step explanation:
4^-7 is just 1/4^7 so this is equal to 4^2 divided by 1/4^7. Dividing by a fraction is the same thing as multiplying by its reciprocal (just flip the fraction). So this whole equation is equal to 4^2 multiplied by 4^7. And when you multiply two exponents with the same base, the exponents are just added. So, your answer should be 4^9. Hope this helps! :)
1 2/3 - (-5 2/3) plsssssssssssssss helppppppppppppppppp
Answer:
[tex]7\frac{1}{3}[/tex]
Step-by-step explanation:
Answer:
i think its 7 1/3 but i may be wrong check that befoer u answer- i did this stuff like 2 years ago
Step-by-step explanation:
How to write (4t)^5 without exponents?
Answer:
4t x 4t x 4t x 4t x 4t
Step-by-step explanation:
We have that for the Question "How to write (4t)^5 without exponents?" it can be said that to write (4t)^5 without exponents we have
(4t)^5 =1024 * t*t*t*t*t
From the question we are told
How to write (4t)^5 without exponents?
Generally the expression for (4t)^5 is mathematically given as
(4t)^5
Therefore
(4t)^5 =4^5 *t^5
(4t)^5 =1024 * t*t*t*t*t
Therefore
to write (4t)^5 without exponents we have
(4t)^5 =1024 * t*t*t*t*t
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The quantity 32 minus 16 multiplied by 9:
what does quanitity mean
Answer:
32-16=16
16×9=144
Step-by-step explanation:
quantity: the amount of smth
Hope it helps, have a great day!
The quantity resulting from the expression "32 minus 16 multiplied by 9" is -112.
In the given context, "quantity" refers to a specific numerical value or amount. It represents a numerical value that can be measured, counted, or expressed in terms of units. In this case, the quantity is being used to describe the result of a mathematical operation.
In general, when we refer to a quantity, we are focusing on the numerical value itself, irrespective of the units or context. It provides a way to quantify or express a particular amount or value in a given situation.
In the expression "32 minus 16 multiplied by 9," the quantity refers to the value obtained from performing the mathematical operation. To evaluate this expression, we follow the order of operations, which dictates that multiplication should be performed before subtraction:
32 - 16 x 9
Multiplying 16 by 9 gives us 144, and subtracting that from 32 yields the quantity:
32 - 144 = -112
Therefore, the quantity resulting from the expression "32 minus 16 multiplied by 9" is -112.
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Carl's cats weigh a total of 12 kg (kilograms). Bo weighs 5 1/2kg. Tommy weighs 2 1/3 kg. How much does Suzi weigh?
Answer:
5 1/6 kilograms is the answer I think
What is an equation of the line that passes through the point (-2, -6) and is
parallel to the line x + 2y = 8?
Answer:
The equation of new line is: [tex]\mathbf{y=-\frac{1}{2}x-7}[/tex]
Step-by-step explanation:
We need to write an equation of the line that passes through the point (-2, -6) and is parallel to the line x + 2y = 8
We need to find slope m and y-intercept b for the new line.
First we need to find slope m of the new line.
The given line x+2y=8 is parallel to new line.
When lines are parallel, there slope is same.
First writing equation in slope-intercept form: [tex]y=mx+b[/tex] where m is slope and b is y-intercept
[tex]x+2y=8\\2y=-x+8\\y=-\frac{1}{2}x+\frac{8}{2}\\ y=-\frac{1}{2}x+4[/tex]
Now comparing with [tex]y=mx+b[/tex] the slope is : [tex]m=-\frac{1}{2}[/tex]
Now finding y-intercept b
Using point (-2,-6) and slope [tex]m=-\frac{1}{2}[/tex] we can find y-intercept
[tex]y=mx+b\\-6=-\frac{1}{2}(-2)+b\\-6=1+b\\b=-6-1\\b=-7[/tex]
So, we get y-intercept b = -7
Now the equation of required line having slope [tex]m=-\frac{1}{2}[/tex] and y-intercept b = -7 is:
[tex]y=mx+b\\y=-\frac{1}{2}x-7[/tex]
So, the equation of new line is: [tex]\mathbf{y=-\frac{1}{2}x-7}[/tex]
Find the solution of
−
6
(
2
x
+
1
)
=
54
.
Answer:x-5
Step-by-step explanation:
-6(2x+1)=54
Distribute:
-12x-6=54
Add 6 on both sides:
-12x-6+6=54+6
-12x=60
Divide 12 on both sides:
-12x/-12=60/-12
x=-5
WILL GIVE BRAINLLIEST
9 is 10% of what number
Answer: the answer is 90 bro
Step-by-step explanation:
Which of the following is written in a scientific way?
Answer:
Both B and C, but I am not sure about just one answer.
Step-by-step explanation:
12 - x
If x = 7, what is the value of the expression above?
Answer:
5
Step-by-step explanation:
12-7=5
Answer:
5
Step-by-step explanation:
We know that x is equal to 7. That means we can replace x with this value. This makes our new expression:
12 - 7
12-7 is equal to 5, so this expression will equal 5 when x = 7.
Taylor has $4 worth of dimes and quarters. She has 2 more quarters than
dimes. Graphically solve a system of equations in order to determine the
number of dimes, x, and the number of quarters, y, that Taylor has.
Answer: Taylor has 10 dimes and 12 quarters.
Step-by-step explanation: you should end up with the equation y = x + 2 which is where it explains that he had two more quarters than dimes.
Then, your other equation starts with .10x +0.25y = 4 “, but then simplified, which should give u y = -2/5x +16. Once you graph both the top and this equation, they should intersect at the 4, which leads back to your money amount of 4 dollars.
Solve for x Please help me out
Answer:
A.
Step-by-step explanation:
18 x 5 = 90 + 5 = 95
19 x 5 =95
18x + 5 = 19x
(alternate exterior angles)
5 = 19x - 18x
5 = x
find the next 2 terms in this sequence