Please help! This is for geometry
What common error(s) did this student make? What is the correct solution for x? Please help
Answer:
10x - 5(x - 1) = 20
10x - 5x + 5 = 20
5x + 5 = 20
5x = 20 - 5
5x = 15
x = 15/5
x = 3
Step-by-step explanation:
Answer:
x = 3
Step-by-step explanation:
The first error was in the 2nd line: -5(x - 1) is -5x + 5, not -5x - 5 = 20.
Continuing the solution:
10x - 5x + 5 = 20
Combining like terms, we get
5x = 15, and so x = 3
plsss answer asapp and pls show work ty:)
if CE=7x+4 , find the value of X
Answer:
x=5
Step-by-step explanation:
If CE=7x+4, then x+3+(8x-9)=7x+4
x+3+8x-9=7x+4
Combine like terms: 9x-6=7x+4
Isolate x to one side: 2x-6=4
add 6: 2x=10
divide by 2: x=5
check your work;plug x into both equations
5+3=8, 8(5)-9=31....8+31=39
7(5)+4=39
What is 8/12k+3/12k=22?
Greetings from Brasil...
let's multiply both the 1st and 2nd members by 12k:
(8/12K) + (3/12K) = 22 x12K
8 + 3 = 264K
K = 11/26420 POINTS!!! PLS COME AND LOOK!!! I NEED YOU GENIUSES!!! I WILL GIVE BRAINLIEST!!!!! AT LEAST COME AND LOOK!!!! WILL FOREVER BE GREAT FULL!!! EASY IM JUST DUMB!! 2 QUESTIONS!!
1. Which of the following properties would you use to solve 3r ≤ 16 for r?
A) multiplication property of inequality
B) addition property of inequality
C) subtraction property of inequality
D) division property of inequality
2. Explain the difference between perimeter and volume.
A) You use perimeter to measure the distance around an object. Volume represents space inside a two-dimensional object.
B) Perimeter represents space inside a two-dimensional object. You use volume to measure the distance around an object.
D) You use perimeter to measure the distance around an object. Volume represents space inside a three-dimensional object.
C) Perimeter represents space inside a three-dimensional object. You use volume to measure the distance around an object.
Answer:
1. division property of inequality
2. Perimeter is used to represent the distance around an object, and volume is the space inseide a three dimensional object.
Step-by-step explanation:
Answer:
1- (D)Division property of Inequality.
2-(B)Perimeter represents space inside a two-dimensional object. You use volume to measure the distance around an object.
Trust me.
Step-by-step explanation:
1- Explanation for the first answer is if you divide 3r%16 you will get 4r
2- I already explained it.
Mason loves collecting sea glass from the beach. He recorded the weight of each jar full of sea glass. If he decided to distribute the sea glass equally among the jars, how much would each jar weigh? pounds (Write mixed numbers as x y/z.)
The missing weights are:
2 2 2 1 11 12 12 2 24 22 24 3 37 22
Answer:
[tex]Average = 12\frac{4}{7} \ lb[/tex]
Step-by-step explanation:
Given
Weight of sea glass
To solve this question, we have to calculate the mean of the weight of the sea glass as follows;
[tex]Average = \frac{\sum x}{n}[/tex]
Where n = number of sea glass
[tex]n = 14[/tex]
So:
[tex]Average = \frac{\sum x}{n}[/tex] becomes
[tex]Average = \frac{2 +2 + 2 + 1 + 11 +12 +12 +2 +24+22 +24 +3 +37+ 22}{14}[/tex]
[tex]Average = \frac{176}{14}[/tex]
[tex]Average = 12\frac{8}{14}[/tex]
Simplify fraction
[tex]Average = 12\frac{4}{7}[/tex]
Hence; the weight of the sea glass would be [tex]12\frac{4}{7}\ lb[/tex] when evenly distributed...
Which expression is equivalent to √ 24 ⋅ √ 2 in simplest form?
Answer:
4[tex]\sqrt{3}[/tex]
Step-by-step explanation:
Using the rule of radicals
[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab}[/tex]
Given
[tex]\sqrt{24}[/tex] × [tex]\sqrt{2}[/tex]
= [tex]\sqrt{48}[/tex]
= [tex]\sqrt{16(3)}[/tex]
= [tex]\sqrt{16}[/tex] × [tex]\sqrt{3}[/tex]
= 4[tex]\sqrt{3}[/tex]
Suppose you start at the origin, move along the x-axis a distance of 6 units in the positive direction, and then move downward along the z-axis a distance of 3 units. What are the coordinates of your position
Answer:
Coordinates are (x,y,z)= ( 6,0,-3)
Step-by-step explanation:
Because
X = +6units
Y= 0at origin
= -3 units negative because its downwards on the number line
If Benji weighs 529 pounds and he eats 7 pounds of watermelon how much percent watermelon would Benji be?
Answer:
1.3232514 %
Step-by-step explanation:
pounds of watermelon/ total pounds
7/ 529
.013232514
Change to percent form
1.3232514 %
How many multiples of 6 are greater than -25, but less than 25?
Answer:
8.
Step-by-step explanation:
They would be -24, -18, -12, -6, 6, 12, 18, 24.
As of 2016 New York City has a population of 8.55 million and a land area of 300 square miles. Manhattan is a section of New York City that has a land area of 23 square miles and a population of 1.64 million.
How much greater is the population density of Manhattan than that of New York City?
Answer:
42,804.35 million people per miles
Step-by-step explanation:
Population density = Number of people / Land area
New York
Population = 8.55 million
Land area = 300 square miles
Manhattan
Population = 1.64 million
Land Area = 23 Square miles
Population density of New York = Number of people / Land area
= 8.55 million / 300 Square miles
= 8,550,000 / 300
= 28,500 people per square miles
Population density of Manhattan = Number of people / Land area
= 1.64 million / 23 miles
= 1,640,000 / 23
= 71,304.35 million people per square miles
Difference between Manhattan and new York City = 71,304.35 - 28,500
= 42,804.35 million people per miles
Therefore,
The population density of Manhattan is greater than that of New York City by 42,804.35 million people per miles
The difference between the population densities of Manhattan and New York is 42,804 people per square mile.
The density of New York is:
= Population / Area
= 8,550,000 / 300
= 28,500 people per square mile
Density of Manhattan:
= 1,640,000 / 23
= 71,304 people per square mile
The difference is:
= 71,304 - 28,500
= 42,804 people per square mile
In conclusion, Manhattan's population density is 42,804 people per square mile higher than New York City's.
Find out more at https://brainly.com/question/21591562.
Which fraction is equal to a whole number?
10/4
7/7
8/4
3/6
Answer:
Step-by-step explanation:
7/7 = 1 whole number
8/4 = 2 whole numbers
both equal to whole number
Given _______________________________________________, there is one and only one line perpendicular to the plane through that point.
Answer:
through a given plane
Step-by-step explanation:
let f(x)=x+3 and g(x)=6x+4. find f(x)+g(x), g(x)-f(x), and g(f(x)).
I hope this helps you...
what is x/-4 + 7 = 9
Answer:
[tex]x[/tex] = 8
Step-by-step explanation:
Solve for x by simplifying both sides of the equation, then isolating the variable.
x = 8
Hope it helps!
5/7 multiplied by 35
Answer:
25
Step-by-step explanation:
5 / 7 * 35
Cancel 35 by 7 since 7 * 5 = 35
Therefore, you get
5 * 5 = 25
Answer:
[tex] \frac{5}{7} \times 35[/tex]
[tex]divide \: the \: 7 \: from \: 35[/tex]
[tex]you \: will \: get \: 5[/tex]
[tex]now \: 5 \times 5 = 25[/tex]
ANSWER = 25
Hope this is correct and helpful
HAVE A GOOD DAY!
I know that this is a very tricky question: What is the value of 0 to the power 0?
Answer:
just 1
Step-by-step explanation:
It is easy, anything with the power of zero just equals to one
Answer:
1
Step-by-step explanation:
any number including 0 having power 0 will be equal to 1
Write and solve the sentence as a equation;
The number is 5 less than -7
Answer:
x= -12
Step-by-step explanation:
(-7) - x = 5
<=> x = (-7) - 5
<=> x = -12
Answer:
-7 - 5 = -12
Step-by-step explanation:
Hope it helps :)
is 7/18 rational or irrational
7/18 is a rational number. A rational number is one that may be expressed as a fraction or as a component of a whole number.
What is a rational number?
Any number that can be stated as a fraction or as a portion of an entire number is considered rational.
The given number in the problem is;
7/18
The number is in the form of p/q and the denominator value is greater than the numerator in fraction form, so that the given number is a rational number.
Hence,7/18 is a rational number.
To learn more about the rational number, refer;
https://brainly.com/question/17450097
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(20 points) I need help urgently. Send Help!!!! (Geometry) m∠DEF if m∠DEH = (9x + 3) ° and m∠HEF = (5x + 11) °
Answer:
very hard question
Step-by-step explanation:
Question 1
Solve the equation. Enter only the number into the box below,
22
18+ X
Answer:
no cemma cuhydhfhhdhdhd
if one root of the equation is 4x^2- 2x+p-4 be the reciprocal of other. then find the value of p
Answer:
p = 8
Step-by-step explanation:
Let one root of the eqn. be alpha . Other root is 1/alpha .
We know that product of both roots of an quadratic eqn. is c/a where "c" is the co-efficient of the constant & "a" is the co-efficient of x^2.
Here "c" is p-4 & "a" is 4. And the product of roots is 1 ( ∵ prdouct of a number and its reciprocal is 1 )
[tex]\frac{c}{a} = 1\\=> \frac{p - 4}{4} = 1\\=> p - 4 = 4\\=> p = 4 + 4 = 8[/tex]
Choose the correct answer
dilation of 0.5 about the origin
R(1,3), s(1,4), 7(4,4), u(3, 1)
A) R(0.25, 0.75), s(0.25, 1), 7(1, 1), u(0.75, 0.25)
B) S(-1,4), 7(-4,4), u(-3, 1), R(-1,3)
C) R(0.5, 1.5), s(0.5, 2), 7(2, 2), u(1.5, 0.5)
D) R(-1,-3), s(-1,-4), 7(-4,-4), u(-3,-1)
Answer: i think it's c
Step-by-step explanation:
a store offers a 15% discount on all items in the storage on a cell All Star employee gets in the aditional 10% employee discount in the equation below C represents the cost of an item for an employee including tax and x represents the original price of the item
C=0.765x+0.06(0.765×)
Chris is an employee at the store. He plans to buy a coat during the sale. The price of the coat before the discount is 100$. How much will Chris pay for the coat during the sale? Remember,do not include the $ symbol.
Answer:
$81.09
Step-by-step explanation:
C=0.765(100)+0.06(0.765x100)
C=0.765(100)+0.06x76.5
C=0.765(100)+4.59
C=76.5+4.59
C=81.09
Ethan buys dough to make fresh bread for his sandwich shop. He pays $11.55 for 25 ounces. What is Ethan's price per ounce of dough?
The cost of dough per ounce is $0.462.
How to calculate the cost per item?In order to calculate the cost of one item, divide the total cost of items by the total number of items.
It is also called the unit rate of that item.
The cost for 25 ounce dough of $11.55.
The price per ounce is equivalent to the unit rate given as,
Unit rate = Total cost ÷ Amount of dough
= 11.55 ÷ 25
= 0.462
Hence, Ethan's price per ounce of dough is $0.462.
To know more about cost per item click on,
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Maggie baked a berry pie. The recipe called for 6 ounces of blackberries, 9 ounces of raspberries, and 5 ounces of strawberries. In the supermarket, she only found 12-ounce containers of berries. She bought 1 container of each kind of berry. After she baked the pie, how many ounces of berries did Maggie have left?
Answer:
16 berries
Step-by-step explanation:
Blackberries: 12 - 6 = 6Raspberries: 12 - 9 = 3Strawberries: 12 - 5 = 7 Now we know how many individual berries will be left: 6 blackberries, 3 raspberries, and 7 strawberries.6 + 3 + 7 = 16A rectangle has a length that is 8 less than its width, w. The perimeter is 52. Which equation can be used to determine its width?
please help ASAP, thank you!
Answer:
5
Step-by-step explanation:
i think
Answer:
The Answer is -5
Step-by-step explanation:
1. C=[tex]\frac{5}{9}[/tex](f-32)
2. Remove parenthesis
c=f−32
3. Add 32 to both sides
c+32=f
4. Switch the sides
f=c+32
Hope this helped!
Suppose it takes you 12 min to walk from home to school at a rate of 260 ft/min. Your friend lives closer to school than you do. Which inequality represents the distance d (in feet) that your friend lives from school? A. d 260 C. d > 3120 D. d < 3120
Answer:
The answer is d < 3120.
Step-by-step explanation:
Liam's breakfast was an egg and cheese biscuit with a carton of milk. He spent a total of $5.65. Finn spent $7.65 on an egg and cheese biscuit and two cartons of milk. How much was an egg and cheese biscuit?
Answer:
An egg and cheese biscuit was $3.65.
Step-by-step explanation:
Liam's breakfast was:
[tex] P = E + C + M [/tex]
Where:
P: total price
E: egg
C: cheese biscuit
M: carton of milk
[tex] P = E + C + M [/tex]
[tex] 5.65 = E + C + M [/tex] (1)
Now, Finn's breakfast was:
[tex] P = E + C + 2*M [/tex]
[tex] 7.65 = E + C + 2*M [/tex] (2)
By subtracting equation (2) from (1) we have:
[tex] 7.65 - 5.65 = 2M - M [/tex]
[tex] M = 2 [/tex]
Hence, the price of a carton of milk is $2, so by entering this value into equation (1) we can find the price of an egg and cheese biscuit:
[tex] 5.65 = E + C + M [/tex]
[tex] 5.65 - 2 = E + C [/tex]
[tex] E + C = 3.65 [/tex]
Therefore, an egg and cheese biscuit was $3.65.
I hope it helps you!