The density of the gold sample is 19.3g/cm³
Let the mass of the gold sample be represented by m
m = 579 g
Let the volume of the gold sample be represented by V
V = 30 cm³
Let the density of the gold sample be represented by ρ
The formula for the density is:
[tex]Density = \frac{Mass}{Volume}[/tex]
[tex]\rho = \frac{m}{V} \\\rho = \frac{579}{30} \\\rho = 19.3 g/cm^3[/tex]
The density of the gold sample is 19.3g/cm³
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A jewelry supply shop buys silver chains from a manufacturer for c dollars each, and then sells the chains at a 57-percent markup. Write the markup as a decimal, A expression for the retail price silver chain, a retail price of a silver chain purchased for 45 dollars, and how much was added to the original price of the chain
( if you answer all the questions i will mark you the Brainy-est. )
The amount added to the original price of the jewelery is the Markup price. Hence, the amount added is $16.34
Markup = 57% = 0.57Cost of jewellery = cRetail price = $45Retail price = cost of jewellery + Markup
$45 = c + 0.57c
45 = 1.57c
Divide both sides by 1.57
c = 45/1.57
c = $28.66
The Markup price = (Retail price - Original price)
Markup = $45 - $28.66 = $16.34Therefore, the amount added to the original price is $16.34
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Are the shapes similar?
a
Yes
b
No
c
It cannot be determined.
Find the value of each of the variables.
A X = 12, y = 15, z = 20
B. X = 9,7 = 15,2 - 20
C. X = 9,y = 18,2 = 20
D. X = 12, y = 18,2 = 20
Answer:B
Step-by-step explanation:
B
help with this question
Answer:
C) (x-3)(x+3)
Note:
Just a tip there is an app called Desmos where you can put in equations like this and it will graph them for you.
Someone plz help me :(
Answer:
C is the correct answer.
Step-by-step explanation:
Answer:
the anserew is all c hope this helps sorry if it dont and sorry i cant spell
please help I will make Brainliest if correct (show working)
Answer:
I beleive X=2
Area is 24
Step-by-step explanation:
X=2 because the side with B has 4cm and on the other it has 6 but the 4 can be put into 6 and 6-4 is 2 if that made any sense
The area is 4 times 2= 8 and then 8 times 2 is 16
16+8=24
What value of x satisfies the equation 5(x – 3) – 2(x + 1) = 4?
Answer:
x = 7
Step-by-step explanation:
To solve:
Distribute 5 among everything inside the first parentheses. You'll get 5x - 15.
Next distribute -2 among everything in the second parentheses. You'll get
-2x - 2.
All together: 5x - 15 -2x - 2 = 4
Now combine like terms:
5x - 2x = 3x and -15 - 2 = - 17
All together: 3x - 17 = 4
Add 17 on both sides to get 21, and then divide both sides by 3. Answer is x = 7.
________________________________
Last, don't forget to check your work.
You can plug in 7 for x to get:
5(7 - 3) = 20
5 × 7 = 35
5 × -3 = -15
35 - 15 = 20
-2(7 + 1) = -16
-2 × 7 = -14
-2 × 1 = - 2
-14 -2 = -16
20 - 16 = 4
⬆⬆⬆Therefore this is correct.
Sorry this is a bit lengthy, but hope this helps :)
write the equation
it passes through (0,-2) and is perpendicular to the graph of y=5x+7
Step-by-step explanation:
the line passes through (0,-2) and perpendicular to the graph of y=5x+7.
solution :
the slope = -1/5
the equation :
y+2 = -1/5 (x-0)
y = -1/5x - 2
The total area of Russian is about 20,000,000
Answer: 19,990,000 times
Step-by-step explanation: Land area of Russia = 20000000
Land area of Puerto Rico = 10000
20000000 - 10000 = 19,990,000
what 5 divided by 475
Answer:
it's 0.01 (approx.)
Step-by-step explanation:
brainliest plz
Answer:
0.010526315789
OR
0.011
Can someone help me, please?
State the domain and range of the following function.
Answer:
Answer C
Step-by-step explanation:
seeing as how the x coordinates of the points are 2,3,4,6,7, we know that the answer must have these numbers, and only these numbers, as the domain. The only answer that has that is answer C.
The probability that a red block is selected from a bucket is
3/8, and the probability that a blue block is selected is 2/8.
What is the probability that a red block or a blue block is
selected?
a) 1
b) 1/2
c) 5/8
d) 6/8
Answer:
5/8
Step-by-step explanation:
Since we don't know what the other color (s) are, all we need to do to determine the probability is add the two fractions, and that is your probability.
Answer:
5/8
Step-by-step explanation:
The probability of a red block shows 3/8. This means there are 8 blocks total and only 3 of them are red.
The probability of a blue block shows 2/8. Again there are 8 total blocks and only 2 are blue.
So the total number of blocks remains the same....8
The total of red and blue blocks is 3 + 2 = 5
So the probability would be 5/8
10 yd
9 yd
Perime
Perimeter:
Area:
IsheetWorks.com
Step-by-step explanation:
hdhjdjddjjshsjaoauqgsvdkdjvevw ossjbwjwkwhwvw iehwuqgvdhsjshsdhdhdj shjesjvv
Step-by-step explanation:
The area = 9 × 10 = 90
the perimeter = 2(9 + 10) = 38
pleae give me a brainliest answer
-9 + ( -16) =
( -4) – (-6) + (-5) – (8) =
( 3) – (-9) + (-3) – (-2) =
- ( 5) – (-7) + (-8) =
- ( -8) – (-9) + (-4) – (-1) =
( -5) – (-11) + (10) – (8) =
( -1) – (-2) + (-3) – (-6) =
( -4) – ( 4) – (6) + (-5) – (-8) =
(-6) + (-5) – (-8) =
Answer:
-9 + ( -16) = -25
( -4) – (-6) + (-5) – (8) =-11
( 3) – (-9) + (-3) – (-2) =11
- ( 5) – (-7) + (-8) =-6
- ( -8) – (-9) + (-4) – (-1) =14
( -5) – (-11) + (10) – (8) =8
( -1) – (-2) + (-3) – (-6) =4
( -4) – ( 4) – (6) + (-5) – (-8) =-11
(-6) + (-5) – (-8) =-3
Step-by-step explanation:
Hope it helps
Answers:
-9 + ( -16) = -25
( -4) – (-6) + (-5) – (8) = -11
( 3) – (-9) + (-3) – (-2) = 11
- ( 5) – (-7) + (-8) = -6
- ( -8) – (-9) + (-4) – (-1) = 14
( -5) – (-11) + (10) – (8) = 8
( -1) – (-2) + (-3) – (-6) = 4
( -4) – ( 4) – (6) + (-5) – (-8) = -11
(-6) + (-5) – (-8) = -3
PLSSS HLEPP ME OUTT ITS URGENTTTT!!
increase in x results in the decrease in y
Answer:
• Decrease in x results in the increase in y
• Increase in x results in the decrease in y
a recreational club charges a one time $20 membership fee and $3 for use of the pool
i just need an answer and step by step work of it someone help me please.
Answer:
what is the question asking?
[tex] \sqrt[5]{1150? } = [/tex]
please give me a answer please
if the price of an item before tax is £720 and the tax percentage is 25%, what is the selling price?
how can I Simplify 13⁰ this
[tex] = \frac{13\pi}{180} \\ \\ in \: \: alternate \: form \\ \\ = 0226893[/tex]
hope it helps
Simplify the expression to a + bi form:
(1 – 8i) + (8 + 6i)
rewrite the equation in slope-intercept form 5x - 6y = 12
Answer:
M = [tex]\frac{5}{6}[/tex] Is correct answer
Step-by-step explanation:
Write in slope-intercept form, y = m x + b.
m = [tex]\frac{5}{6}[/tex]
Graph in pic
(Hope this helps can I pls have brainlist (crown)☺️
5)
4 mm
2 mm
5 mm
3 mm
Perimeter:
Area:
Answer:
perimeter - 4+2+3+2+5= 16mm
Area -5×4=20mm²
-3x + 18 = 7x solve
Answer:
refer to the attachment
Step-by-step explanation:
hope that helps
can someone pls help me with number 5 pls show your work so i can understand thanks
Step-by-step explanation:
Let's represent Aaron's age with x and
Charlene's age with x+8
x+x+8=44
2x+8=44
2x=44-8
2x=36
x=36÷2
x=18
Aaron is 18 years old.
While Charlene is 18+8=26 years old.
Hope this helps!
2 1/3 + 3 1/4 as a fraction
Answer:
67/12 (just in case if they would ask you for the simplified form the answer in is 5 7/12)Step-by-step explanation:
convert both mixed fractions to improper fractions first
2 1/3 = 7/3 3 1/4 = 13/4
(cross multiplication method, to make both fractions have the same denominator)
7/3 + 13/4
7/3 × 4/4 = 28/12
13/4 × 3/3 = 39/12
28/12 + 39/12 = 67/12 (just add, denominator will remain the same)
67/12 (simplify)
67/12 = 5 7/12 (simplified)
HELP PLEASE HELP HELP HELP HELP
Answer:
always first sum
Step-by-step explanation:
for example: 1+2/1-2=3
2+2/2-1=4
Identify the segment bisector of XY.
n
5x + 8
9x + 12
Х
M
1
ОХМ
Ο Χ
O line n
O YM
The length of XY is
Given the image attached, the segment bisector that divides XY into two and the length of XY are as follows:
Segment bisector of XY = line nLength of XY = 6Recall:
A line that divides a segment into two equal parts is referred to as segment bisector.In the diagram attached below, line n divides XY into XM and MY.
Thus, the segment bisector of XY is: line n.
Find the value of x:
XM = MY (congruent segments)
Substitute[tex]5x + 8 = 9x + 12[/tex]
Collect like terms and solve for x[tex]5x + 8 = 9x + 12\\5x - 9x = -8 + 12\\\\-4x = 4\\\\x = -1[/tex]
XY = XM + MY
[tex]XY = 5x + 8 + 9x + 12[/tex]
Plug in the value of x[tex]XY = 5(-1) + 8 + 9(-1) + 12\\\\XY = -5 + 8 -9 + 12\\\\\mathbf{XY = 6}[/tex]
Therefore, given the image attached, the segment bisector that divides XY into two and the length of XY are as follows:
Segment bisector of XY = line nLength of XY = 6Learn more here:
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4/8+2/4= pls help you get 20 points if you do
Answer:
1
Step-by-step explanation:
use BEDMAS here:
4 divided by 8 is 1/2 or 0.5
2 divided by 4 is 1/2 or 0.5
now adding these two gives you:
1/2 + 1/2 = 1
Find last year's salary if, after a 5% pay raise, this year's salary is 35,175
Answer:
Step-by-step explanation:
x + 0.05x = 36225
x(1 + 0.05) = 36225
x*1.05 = 36225
by solving we find:
x = $34,500