Answers
Answer:
8x - 15
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Combining like termsStep-by-step explanation:
Step 1: Define expression
5x + 3(x - 5)
Step 2: Simplify
Distribute 3: 5x + 3x - 15Combine like terms: 8x - 15Related Questions
Y=2x-7 2x+y=5 solve the system
Answers
Plug in -1 for y and solve for x
2x+1=7, x=3
Final answer: x=3, y=-1
Answer:
x=3 y=-1
Step-by-step explanation:
y=2x-7
2x+y=5
___________________
2x+2x-7=5
4x-7=5
4x=12
x=3
___________________
2(3)-7=y
6-7=y
-1=y
The scale on a map is 3 inches = 40 miles. How far apart are two cities if the distance between them on the map is 6¾ inches?
Answers
Answer:
90 miles
Step-by-step explanation:
.............
(7th grade math)
20% of what number is 30?
Answers
Answer:
150
Step-by-step explanation:
click on photo for question.
Answers
Answer:
the last one
Step-by-step explanation:
when something asks for product it means multiplication
to get 2 times -5, you move first to -5 then to -10
The scale on a map is 1: 20 000.
(a) Calculate the actual distance between two points which are 2.7 cm apart on the map.
Give your answer in kilometres.
Answers
Answer:
0.54kilometres
Step-by-step explanation:
a)actual distance =2.7*20000
=54000cm
=0.54kilometres
Evaluate: 2-4 =
help please
Answers
Answer:
-2
Step-by-step explanation:
Answer:
-2 I'm pretty sure since you subtract 2 from four.
Step-by-step explanation:
Leo has a bag of dimes and quarters. He has a total of 29 coins worth $4.70. Let x represent the number of dimes and y represent the number of quarters. Which system of equations would be used to find out how many dimes and quarters Leo has?
{x+y=290.1x+0.25y=4.7
{y=x+29x+y=4.7
{x=29−yx+y=4.7
{x+y=4.70.1x+0.25y=29
(60 points)
Answers
Answer:
x+y=29
0.1x+0.25y=4.7
Step-by-step explanation:
- x+y=29 (x is the number of dimes and y is the number of quarters. there is a total of 29 coins)
- Each dime is $0.1 and each quarter is $0.25.
- By multiplying the number of dimes by $0.1 and multiplying the number of quarters by $0.25, you will get the total amount of money, which is $4.7. - - Therefore, the answer is:
x+y=29
0.1x+0.25y=4.7
Hope this helps! :) I also took the K12 quiz, here is proof that this is right:
5)
On the map of a town, 1 cm represents 6 miles. Find the distance represented by 4.5 cm.
A)
4.5 miles
B)
6 miles
09
17 miles
D)
27 miles
Answers
How would you find the value for f(-) if you are given a graph of f(x)?
Answers
Answer:
Step-by-step explanation:
multiply x as a negative.
Example:
f(x) = 3x + 1
f(-x) = -1(3x) + 1
f(-x) = -3x + 1
what is 47,683 of 2,000,000,000 in percentage form
Answers
Answer:
0.00238415%
I hope this helps!
pls help me with my most recent question thats not this one
Answers
Answer:
what's our recent question my guy
x/2 + x/5 = 1 solve for x
Answers
Answer:
answer is 10/7
Step-by-step explanation:
Shing estimates that it takes him 4/5 hour to mow a yard. Which is the best estimate of the Number of yards he can mow in 4 1/4 hours?
Answers
Answer:
its 6
Step-by-step explanation:
it will help you cuz i did it right
9. Ian and his friends are renting a cabin that
charges an initial fee plus a rate per night. The
relationship between the cost and the number of
nights is shown in the graph.
Answers
Answer:
taken from another post
Step-by-step explanation:
Answer:
Cost per night: 75
Equation:
Step-by-step explanation:
An equation to represent the situation can be written in the slope-intercept form, , where,
m = slope of the graph, which is the rate per night.
b = y-intercept, which is the initial fee. It is the point where the line intercepts the y-axis.
Let's find m, using two points on the line, (2, 200) and (4, 350)
✅The cost per night = 75
y-intercept, b, = 50. The line intercepts the y-axis at y = 50, when x = 0.
Substitute m = 75, and b = 50 into .
✅The equation would be:
What is the slope of the line?
Answers
Answer:
The slope is 0.5 or (1/2)
Step-by-step explanation:
Find the rise over run.
from -3 to -1 and 2 to 3 rises 1 runs 2 so then you divide 1/2 and get 0.5.
How many square roots dose the number 20 have
Answers
Answer:
The awnser is 4.472135955
You buy 4 breakfast sandwiches at $2.59 each, 4
hashbrowns at $1.10 each, and 4 bottles of orange
juice at $1.25 each. The sales tax is 6%. Find the
total cost of the 4 meals, including sales tax.
Answers
Answer:
all 4 meals equal $20.95
Step-by-step explanation:
4 sandwiches = $2.59 each
4 hashbrowns = $1.10 each
4 orange juice = $1.25 each
sales tax = 6%
now you have two options you could either add all of the one meal prices together or you could do how much it would cost for the each individually
adding one meal
2.59 + 1.10 + 1.25 = 4.94
4.94 x 4 = 19.76
adding all the items individually
2.59 x 4 = 10.36
1.10 x 4 = 4.40
1.25 x 4 = 5.00
10.36 + 4.40 + 5.00 = 19.76
now if the sales taxes
19.76 x 0.06 = 1.19
now sales taxes plus all the items
19.76 + 1.19 = 20.95
Find the rate of change of the line below. I
Answers
Answer:
-1/4
Step-by-step explanation:
Clayton invested $360.00 in a bank for 3 years at 8% simple
interest each year. At the end of the 3 years, the total amount
he will receive is:
A. $236.80
B. $446.40
C. $86.40
D. $28.80
Answers
Correct answer: B. $446.40
explanation: I took the quiz.
I hope this helps<3
The total amount Clayton will receive after 3 years is $446.40. Therefore, option B is the correct answer.
Given that, principal = $360.00, time period = 3 years and rate of interest = 8%.
What is the simple interest?Simple interest is a method to calculate the amount of interest charged on a sum at a given rate and for a given period of time.
Simple interest is calculated with the following formula: S.I. = (P × R × T)/100, where P = Principal, R = Rate of Interest in % per annum, and T = Time, usually calculated as the number of years.
Now, simple interest = (360×8×3)/100
= 8640/100
= 86.40
Total amount = 360+86.40
= $446.40
The total amount Clayton will receive after 3 years is $446.40. Therefore, option B is the correct answer.
To learn more about the simple interest visit:
https://brainly.com/question/25845758.
#SPJ2
Of the students in sixth grade, 3/5 pack their lunch. What percent of students pack their lunch?
Answers
Answer:
60 '/.
Step-by-step explanation: 3/5 is 6/10 and 6/10 is 60'/.
-3/4f = 5/4 what does f =
Answers
I double checked online this should be correct
Answer:
-5/3
Step-by-step explanation:
Multiply the -3/4 by the 5/4, cancel out the -3/4 on the side with f, and you'll have f = -5/3
anyone know of some good books to read?
Answers
a painter buys 4 gallons of paint thinner for $60.96. If 1 gallon is equivalent to 4, what is the price per quart of paint thinner?
Answers
Answer:
15.24$
Step-by-step explanation:
$60.96÷ 4=$15.24
Amelia needs to buy some cat food. At the nearest store, two bags of cat food cost $7.50. How much would Amelia spend on three bags of cat food?
Answers
Answer:
♡Henlo friend~♡
2 bags of cat food is $5.50, multiply that by three and get six bags for $16.50♡
Therefore, the answer is $16.50.
Have a great day! ʕ •ᴥ•ʔ
~ Clara
✧･ﾟ: *✧･ *:･ﾟ✧*:･ﾟ✧･ﾟ: *✧･ﾟ *:･ﾟ✧*:･ﾟ✧✧･ﾟ: *✧･ *:･ﾟ✧*:･ﾟ✧･ﾟ: *✧･ﾟ
Step-by-step explanation:
Answer:
11.25
Step-by-step explanation:
hope this helps:)
4 2/5 + k = −3 2/11 plz solve brainlest to the correct answer
Answers
Answer:
k= -118/55 = -2.135
Answer:
K=-7 32/55
Step-by-step explanation:
4 2/4 + k = -3 2/11
22/5 + k = -3 2/11
22/5 + k = -25/11
subtract 22/5 from both sides
22/5 + k - 22/5 = -35/11 - 22/5
k = - 417/55
simplified u get
k = -7 32/55
hope this helps
Elizabeth is organizing dessert plates with 15 brownies and 9 chocolate chip cookies. If she wants all the plates to be exactly the same with no brownies or cookies left over, what is the greatest number of dessert plates that Elizabeth can make?
Answers
Answer:
8 plates
Step-by-step explanation:
The reason for this is because 15 and 9 are both divisible by 3. 15 divided by 3 is 5 and 9 divided by 3 is 3. 5+3= 8. Therefore, you will need 8 plates.
a rare coin is currently worth $450 The value of the coin increases 4% each year Detemine the value of the coin after 7 years.
Answers
Answer:
576
Step-by-step explanation:
450 x 0.04 (0.04 meaning 4%) is 18, then 18 x 7 by the number of years listed, thats 126, then 450 + 126 = 576, by 7 years it would be worth 576, went up by 28%.
Can someone please help me out with this math work.
Answers
Answer:
B = 80
C = 80
D = 100
E = 100
F = 80
H = 100
J = 66
K = 112
L = 112
M = 66
O = 112
P = 112
Q = 66
which of the following pairs of functions are inverses of each other
Answers
Answer:
c would be the answer you are looking for and please mark brainliest
Step-by-step explanation:
Options A and D have functions that are inverses of each other.
What is an inverse function?The inverse function is defined as a function obtained by reversing the given function.
To check whether two functions are inverses of each other, we need to check if the composition of the functions in both orders results in the input value.
Here, we need to check if f(g(x))=x and g(f(x))=x for all values of x in their domains.
A. f(x) = 7/(x-9) and g(x) = (x+9)/7
f(g(x)) = f((x+9)/7) = 7/((x+9)/7 - 9) = 7/(x/7) = x, so f and g are inverses of each other.
B. f(x) = x/6 + 8 and g(x) = 6x - 8
f(g(x)) = f(6x-8) = (6x-8)/6 + 8 = x/6 + 8/6 = x/6 + 4/3, which is not equal to x. Therefore, f and g are not inverses of each other.
C. f(x) = 2 + ∛x and g(x) = 2 - x³
f(g(x)) = f(2 - x³) = 2 + ∛(2 - x³) ≠ x, so f and g are not inverses of each other.
D. f(x) = 5x - 11 and g(x) = (x+11)/5
f(g(x)) = f((x+11)/5) = 5((x+11)/5) - 11 = x, and g(f(x)) = g(5x-11) = (5x-11+11)/5 = x/5, so f and g are inverses of each other.
Therefore, only options A and D have functions that are inverses of each other.
Learn more about inverse functions here:
brainly.com/question/2541698
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Amber cut a 20-inch board into some shorter boards.
Each shorter board is 4 inches long.
Select the two models that represent the number of shorter boards Amber now has.
Answers
Answer:
24 im new im learning english sorry
Step-by-step explanation:
