Answer:
3n-4=7n+8
Step-by-step explanation:
Consider a variable n
three times of number: 3n
seven times of number: 7n
so according to condition:
3n-4=7n+8
What do I do? I'm confused
Answer:multiply each side by 2.5
Step-by-step explanation:
Some people advise that in freezing weather, you should keep the gas tank in your car more than half full. Irene's car had Irene 5.7 gallons in the 13-gallon tank on the coldest day of the year. filled the tank with gas that cost $3.80 per gallon. How much did Irene spend on gas?
Some of the information here isn’t needed, like that fact that it’s freezing and that the tank holds 13 gallons. If gas costs $3.80 per gallon, then 5.7 gallons would cost $27.66
A regular polygon is shown, with the measure of one of its angles labeled 3x − 15.
8 sided regular polygon with one angle labeled 3 times x minus 15
Determine the value of x.
x = 40
x = 65
x = 50
x = 135
Answer:
x = 50
Step-by-step explanation:
The interior angle at each vertex of regular octagons are 135°.
3(50) - 15 = 135
For the polygon to be an 8 sided regular polygon like you said, the angle must equal 135, and so x must equal 50.
The required value of the x in the given expression is 50°.
Given that,
A regular polygon is shown, with the measure of one of its angles labeled 3x − 15.
What is a polygon?
A polygon is defined as a geometric shape that is composed of 3 or more sides these sides are equal in length, and an equal measure of angle at the vertex,
Examples of polygons, equilateral triangles, squares, pentagons, etc
Here,
For the octagon,
The angle of a vertex is 135°.
Equating the angles,
3x -15 = 135
3x = 135 + 15
3x = 150
x = 50
Thus, the required value of the x in the given expression is 50°.
Learn more about polygon here:
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Estimate 6.278 − 4.278 by rounding to the nearest whole number.
A: 2
B: 1
C: 6
D:8
Susan is taking an Algebra test on functions. Question 10 shows the following list of ordered pairs:
{(–5, 7), (–2, 1), (0, 3), (4, 7)}
Which choice should best explain why the relation IS or IS NOT a function?
Question 2 options:
a function; only one range value exists for each domain value
a function; two domain values exist for range value 7
not a function; the relation does not pass the horizontal line test when all points are graphed
not a function, two domain values exist for range value 7
Answer: 1. a function; only one rage value exists for each domain value
2. (-5, 7) , ( -2 ,1) In mathematics, a function is a relation that associates each element of a set (the domain) with a single element of another .In this case 2 elements are smaller than 0 and 2 are bigger than 0
Step-by-step explanation:
Susan has 7 chores, and she can do them in any order. Use the fundamental counting principle to find the number of different ways she can complete her chores.
EXPLAIN
Explanation:
There are 7 choices for the first slot, then 6 for the second, 5 for the third, and so on until we get down to 1 choice for the last slot
7*6*5*4*3*2*1 = 5040 different ways to do those seven chores where order matters.
For more information, check out the concept of factorials.
Paul drinks 51.15 fluid ounces of water per day. How much water does he drink in 4 days?
A. 55.15 fluid ounces
B. 204.6 fluid ounces
C. 153.45 fluid ounces
D. 255.75 fluid ounces
Answer: 204.6 fluid ounces
Step-by-step explanation:
51.15x4=204.6
2/3 + 1/2 (8 + 3 1/2)
Answer:
Step-by-step explanation:
we need to use pemdas
2/3+1/2(8+3 1/2)
2/3+1/2(11 1/2)
2/3+23/4
8/12+69/12
77/12
6 5/12
Hopes this help,please mark brainliest
Answer:
Step-by-step explanation: FRACTION = DECIMAL
15/32 = 0.46875 19/32 = 0.59375
21/32 = 0.65625 25/32 = 0.78125
27/32 = 0.84375 31/32 = 0.96875
Help me, please i really need help
A toy store purchases wagons from a wholesaler for $35.50. The store plans to mark up the wagons 40%. Find the selling price of the wagons.
Answer:
Markup: 66.67%
Revenue/Price: $59.17
Gross Profit: $23.67
Step-by-step explanation:
What is the value of this expression? 17/21 + 1/3 - 5/7 Enter your answer in the box as a fraction in simplest from
Answer:
17+7-15/21
-1/21 is your answer in simplest form
Answer: 17+7-15/21
-1/21 is your answer
Step-by-step explanation:
What is the mode of this data set: 17, 13, 18, 20, 17, 15, 12
A)19
B)17
C)16
D)20
Answer:
17
Step-by-step explanation:
it occurs the most number of times
Answer:
17
Step-by-step explanation:
mode = most occuring number in a data set
5x^2y^3 to the power of 2
Answer:
25x^4 y^6
Step-by-step explanation:
(5x^2 y^3)^2
Use the rules of exponents to simplify the expression.
(5x^2 y^3)^2
To raise the product of two or more numbers to a power, raise each number to the power and take their product.
5^2 (x^2 )^2 (y^3)^2
Raise 5 to the power 2.
2^5(x^2)2(y^3)^2
To raise a power to another power, multiply the exponents.
25x^2×2 y^3×2
Multiply 2 times 2.
25x^4 y^3×2
Multiply 3 times 2.
25x^4 y^6
The perimeter of a rectangular swimming pool is 154m. Its length is 2m more than twice its breadth. What is the length and breadth of the pool?
What is 5/2 divided by 45/2 as a percent
Answer:
11.11%
Step-by-step explain
My teacher taught me to do KFC which means Keep Change flip. You keep the first fraction, change the division sign to multiplication. Then flip the decimal on the last number. Once you do that, you can go on website to write it as a percentage.
A 22-m by 14-m rectangular yard is to be seeded. Each bag of seed covers 18m². How many bags of seed are need?
√9x^2 x √8x^2 please answer soon
PLS HELP EXAM
a) -2 = y + 5
c) –2x + 3x – 5 = 6 – 21
e) 4 – 14 = 5x
g) –42 + 20 = –2x + 13x
i) 7 = y – 2
k) –4 – 10 = 4y + 3y
m) 3y = –18
Answer:
a: y = - 7
c: x = -10
e: x = 2
g: x = -2
i: y = 9
k: y = -2
m: y = -6
Step-by-step explanation:
a: Subtract 5 on both sides
c: Add 5 on both sides then combine like terms
e: Combine like terms then divide by 5
g: Combine like terms then divide by 11
i: Add 2 on both sides
k: Combine like terms then divide by 7
m: Divide by three(won't add the number for some reason)
(2005*40)/5
(ice melody)
Answer:
Well:
2005 times 40 = 80200
And:
80200/5 = 16040
So:
Answer is 16040!
Step-by-step explanation:
Hope it helps! =D
Malia has $10 to spend at the fall carnival. She decides to order an ice cream cone for herself and one for her sister.
a. If the cost of each ice cream cone is $2.35, how much will she spend on the ice cream cones? Write an equation and solve.
b. How much change will Malia receive? Write an equation and solve.
Answer: She spent Four Dollars and seven cents and she gets five dollars and three cents back
Step-by-step explanation: 2.35+2.35=4.7 10-4.7=5.3
Pls help with question 10. Pls show ur working. Thanks
Please answer quickly and correctly, and add the steps to solve the math equation!
Answer:
- 1/10 is the answer for A
Need answer as soon as possible please.
Please help asap! Thanks a bunch!
Answer:
92 cubic meters
Step-by-step explanation:
23 * 8 * 0.5 = 92
This is because the Formula for finding the area of a cubic meter is Height * Width * Depth
Make x the subject of the formula
y/x= abc
Answer:
x=y/abc
Step-by-step explanation:
Let's solve for x.
y/x=abc
Step 1: Multiply both sides by x.
y=abcx
Step 2: Flip the equation.
abcx=y
Step 3: Divide both sides by abc.
abcx/abc=y/abc
x=y/abc
Answer:
x=y/abc
Step-by-step explanation:
In order to make x the subject:
Isolate the variable by: ...
Rearrange the equation so each term containing x is on the same side of the =.
Factorisation may be needed if there are multiple terms containing x . ...
Perform an operation to ensure only a single x variable is left as the subject.
Write 2^60 as a power with this base. 32
Step-by-step explanation:
Write 2^60 as an exponent with a base of: a) 8. b) 16. c) 32. the answer is : 8^20 (eight to the twentieth power). heart outlined. Thanks 2.
what is 1,485 with a markup of 40%
Answer:
Step-by-step explanation:
0.25
What is the slope of the points that go through (2,4) and (4, 8) please help
[tex](\stackrel{x_1}{2}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{8}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{8}-\stackrel{y1}{4}}}{\underset{run} {\underset{x_2}{4}-\underset{x_1}{2}}} \implies \cfrac{4}{2}\implies \text{\LARGE 2}[/tex]
I need help please can someone help me out??
Answer:
the answer is C......................
The result of the simplified expression in this problem is given as follows:
D. 15.
How to simplify the expression?The expression for this problem is defined as follows:
2³ + 6/3 - (-10/2)
The parenthesis takes precedence, hence:
2³ + 6/3 - (-5) = 2³ + 6/3 + 5
The power takes precedence, hence:
8 + 6/3 + 5
Division has higher precedence than addition, hence:
8 + 2 + 5.
Hence the result is given as follows:
8 + 2 + 5 = 15.
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An electric toothbrush costs $56, including a 40% price markup. What was the cost for the store to purchase the electric toothbrush?
$22.40
$30.00
$40.00
$64.80
pls hurry istg
22.40
$56 x .4 = $22.40