Answer: First, add 3.99 + 7.17. Then take the sum of those two numbers and multiply it by .05 to get 0.55. Since we are dealing money, round to the nearest hundredth to get .56. Add the sum of 3.99 and 7.17 (11.16) and .55 to get a total of 11.71. Therefore the total cost of their dinner, including tax, was $11.71.
Step-by-step explanation:
Combine like terms to simplify each expression.
1) -3x + 7x
Answer:
4x
Step-by-step explanation:
-3x + 7x
(-3 + 7)x
4x
Answer:
4x
Step-by-step explanation:
to make it easier, remove the x:
-3+7
Add:
4
Put the X back:
4x
This method will not always work for every problem.
Help plz Brainliest if I can gave u cuz sometime I can’t
Answer:
3 1/2 * 4 = 14
Step-by-step explanation:
To find your answer, which is 14, one side is 3 1/2, and to find cm you need to multiply. 3 1/2 times 4 (Prisms have 4 sides) which is 14!
0.2x + 1 = 1.6x + 3.1
What value of x satisfies the equation above?
Answer:
x = -1.5
General Formulas and Concepts:
Pre-Alg
Order of Operations: BPEMDASEquality PropertiesStep-by-step explanation:
Step 1: Define equation
0.2x + 1 = 1.6x + 3.1
Step 2: Solve for x
Subtract 0.2x on both sides: 1 = 1.4x + 3.1Subtract 3.1 on both sides: -2.1 = 1.4xDivide both sides by 1.4: -1.5 = xRewrite: x = -1.5Step 3: Check
Plug in x to verify it's a solution.
Substitution: 0.2(-1.5) + 1 = 1.6(-1.5) + 3.1Multiply: -0.3 + 1 = -2.4 + 3.1Add: 0.7 = 0.7Which can be used to expand the expression below?
5 3x
associative property
O commutative property
O distributive property
O subtracting
Answer:
the answer is disributive!
Step-by-step explanation:
Does anyone know how to find the area to this I really need help?!
What is the equation of this line?
y = 2x
y=12x
y=−2x
y=−12x
(x,3) and (7,-5) given m= -8/7
Answer:
(0, 3)Step-by-step explanation:
The slope-intercept form of an equation of a line:
[tex]y=mx+b[/tex]
[tex]m[/tex] - slope
[tex]b[/tex] - y-intercept
Given
[tex]m=-\dfrac{8}{7}[/tex]
and point [tex](7;\ -5)[/tex]
Substitute the value of the slope and the coordinates of the point ot the equation of a line:
[tex]-5=-\dfrac{8}{7\!\!\!\!\diagup}\cdot7\!\!\!\!\diagup+b[/tex] cancel 7
[tex]-5=-8+b[/tex] add 8 to both sides
[tex]-5+8=-8+8+b[/tex]
[tex]3=b\to b=3[/tex]
Therefore we have the equation of the line:
[tex]y=-\dfrac{8}{7}x+3[/tex]
Substitute (x, 3) to the equation:
[tex]3=-\dfrac{8}{7}x+3[/tex] subtract 3 from both sides
[tex]3-3=-\dfrac{8}{7}x+3-3[/tex]
[tex]0=-\dfrac{8}{7}x[/tex] divide both sides by (-8/7)
[tex]0=x\to x=0[/tex]
Anna's college tuition payment is automatically
withdrawn from a separate checking account used only
to pay tuition. At the beginning of the year, the balance
in this account was $13,287.48. After withdrawals each
month for a year, the balance is $1,449.84. How much is
Anna's college tuition payment each month? Estimate to
show that your answer is reasonable.
Answer: $986.47
Step-by-step explanation:
The total tuition fee for the year is;
= 13,287.48 - 1,449.84
= $11,837.64
The payment per month will therefore be;
= 11,837.64/12 months
= $986.47
y = b + 5x
(10,1)
Solve for b. Brainliest!
Answer:-49
Step-by-step explanation:(10,1)= (x,y) so we can see that x=10 and y=1. Now you put them in the equation 1=b+5*10. Then you get 1=b+50 and you put 50 to the left side and it becomes negative. 1-50=b . Therefore b=-49
Answer:
Step-by-step explanation:
y = 5x + b ⇒ b = y - 5x
(10, 1)
b = 1 - 5(10) = 1 - 50 = - 49
b = - 49
If log (100ab^2) is expressed as a function of log b, the result would be:
1). 2 log a + 2 log b
2). 100 log a + 2 log b
3). 2 + log a + 2 log b
4). 2 + 2 log a + 2 log 6
Answer: Choice (3)
2 + log(a) + 2*log(b)
======================================================
Work Shown:
The log rules we'll use are
log(xy) = log(x)+log(y)log(x^y) = y*log(x)log(10) = 1, where the log is base 10So,
c = log(100ab^2)
c = log(100) + log(a) + log(b^2) ......... use log rule 1
c = log(10^2) + log(a) + log(b^2)
c = 2*log(10) + log(a) + 2*log(b) ......... use log rule 2
c = 2*1 + log(a) + 2*log(b) .................... use log rule 3
c = 2 + log(a) + 2*log(b)
Note: The use of rule 3 assumes that all logs shown are in base 10, which is the default assumed base. Rule 3 doesn't work for any general base. The more generalized rule is [tex]\log_b(b) = 1[/tex]. If b = 10, then we get rule 3 above.
Help!!!!!!! Meeee plead I’ve already out this question down but nobody answers it:(
Answer:
1. Y = 6
2. Y = 8
3. Y = 1
4. Y = 3
Step-by-step explanation:
1. Y = -(-1) + 5 = 1 + 5 = 6
2. Y = -(-3) + 5 = 3 + 5 = 8
3. Y = -4 + 5 = 1
4. Y = -2 + 5 = 3
Hope this helps you!
Answer: hold up, the answer is 4, 2, 9, and 7. Don't worry I help you to answer this question. Wrong answer the answer is 1. Y = 6
2. Y = 8
3. Y = 1
4. Y = 3
Step-by-step explanation:
If you need points or just want points u can answer this very simple question:
What is 2 + 2?
Answer:
2 + 2 is 4
Step-by-step explanation:
thanks!!!!!!!
frre black Friday points to you guyyysssss!
Have a nice day :)
I think I give brainliest to the person who can tell me the 100 decimal places of Pi!
[tex]\pi[/tex]
3.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Answer:
Thanks, hope you have a nice day!
Step-by-step explanation:
3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679
Thi is a venn diagram or set question
In a village all the people speak Hausa or English or both. If 97% speak Hausa an 64% speak English, what percentage speak both languages?
please help me
please
Answer: The answer is 33% of people spoke Hausa and English language.
Step-by-step explanation:
hiii so my parents just finally agreed to let me get a puppy so could you list some boy and girl name ideas? tyyyy
pls say at least 3
Answer:
abby
frisk
mimi
Step-by-step explanation:
Answer:
Mochi, Athena, and Oreo ^^
Step-by-step explanation:
Congrats! :D
The slope of a line is -4, and the y-intercept is -3. What is the equation of the line written in slope-intercept form?
y = -4x - 3
y = 4x - 3
y = -4x + 3
Answer:
y= -4x+-3 = y=-4x-3
The rest are wrong.
Hi there! :)
We are given the slope of the line and its y-intercept.
So, we write the equation in slope-intercept form (y=mx+b)
m is the slope of the line, and b is the y-intercept.
y=mx+b
y=-4x-3
Hence, that's the equation (Option A)
Hope it helps. Use the comment section to clarify your doubts.
Answered by
~A cheerful gal who helps others and smiles
Good luck.
Hi. ITS URGENT.
I need help with No 5 and 7 (see image)
Please show workings
Answer:
5. a^3 + b^3 = (a+b)^3 - 3ab(a+b)
Step-by-step explanation:
(a+b)^3
= (a+b) (a+b) (a+b)
={(a+b) (a+b)} (a+b)
={a(a+b) + b(a+b)} (a+b)
=(a^2 + ab + ab + b^2) (a+b)
=(a^2 + b^2 + 2ab) (a+b)
=a^2(a+b) + b^2(a+b) + 2ab(a+b)
=a^3 + a^2b + ab^2 + b^3 + 2a^2b + 2ab^2
=a^3 + b^3 + 3a^2b + 3ab^2
=a^3 + b^3 + 3ab(a+b)
(a+b)^3 = a^3 + b^3 + 3ab(a+b)
(a+b)^3 - 3ab(a+b) = a^3 + b^3
a^3 + b^3 = (a+b)^3 - 3ab(a+b)
Hope this helped!
Answer:
I am just giving the expansion, so that you can substitute the values and solve it
The complex numbers z and w are graphed. Which expression represents z + w? (2 + i) + (3 + i) (2 – i) + (3 + i) (2 – i) + (3 + 2i) (2 + i) + (3 + 2i)
Answer:
(2 - i) + (3 + 2i)
Step-by-step explanation:
got it right on edge 2020
Answer:
C. (2 – i) + (3 + 2i)
Step-by-step explanation:
What is another way to write the absolute value inequality lp|<1 2?
Answer:
|p| ≤ 12
Step-by-step explanation:
The absolute value of p less than or equal to 12
Answer:
its A
Step-by-step explanation:
yes
Is this graph a function?
Answer:A
Step-by-step explanation:
Answer: a
Step-by-step explanation:
What is the equation of the line perpendicular to y=-1/5x -2 and contains the point (2, -10)?
Answer:
y= 5x-20
Step-by-step explanation:
I didn't understand if I had to find the perpendicular line or parallel haha.
You’re welcome :)
Answer:
y = 5x -20
Step-by-step explanation:
for the line to be perpendicular it must have the inverse slope
therefore m = 5
no substitute the point (2, -10) in for (x, y) respectively to find the y intercept
-10 = 5(2) + b
-10 = 10 + b
b = -20
the equation will be y = 5x -20
Judah's mother gave him a certain amount of money for doing his chores last week. This week she gave him two times the amount because he did a few more chores. After counting the money his mother gave him for the two weeks of chores and the $15 that was already in his wallet, Judah had $52.50. How much did he earn for one week of chores?
Answer:
He earned $37.50
Step-by-step explanation:
Just subtract the $15 that he already had and you’ll get the answer
What is the answer for -3(4x-2)<18
Answer:
[tex]x>-1[/tex]
Step-by-step explanation:
I used guess and check - anything above -1 works!
Answer:
x>-1
Explanation:
4x-2>-6
4x>-6+2
4x>-4
4x>-4
=x>-1
I have no use for my points
Answer: patronaged by the church
Step-by-step explanation:
Kat runs 12 miles each week. How
many miles will she have run after
20 weeks?
Answer: 240 miles
Step-by-step explanation:
In 2003, the average attendance per game for a football team was about (1 × 104) + (9 × 103) + (9 × 102). What is this number in standard form?
show work
Answer:
1.99 * 10^4
Step-by-step explanation:
Here, we want to write the addition in standard form
= (1 * 10^4) + (9 * 10^3) + (9 * 10^2)
= 10,000 + 9000 + 900
= 19,900
so the number in standard form is;
1.99 * 10^4
PLEASE HELP
1. Select ALL expression(s) has a value less than 4?
A) |-8|
B) |6|
C) -10
D) |-2|
What are the domain and the range of this function?
if the original is 12 units and the scale factor is 1/4 what is the size of the scale drawing?
US
Find the value of x.
es
les
2x - 4
10
Step-by-step explanation:
[tex]{:}\longrightarrow[/tex][tex]\sf 2x-4=10 [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf 2x=10+4 [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf 2x=14 [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf x={\dfrac {14}{2}}[/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf x=7 [/tex]