Answer:
1:14
Step-by-step explanation:
The ratio of the number of albums sold to the number of songs sold is 1:4.
What is Ratio?A ratio is a comparison between two amounts that is calculated by dividing one amount by the other. The quotient a/b is referred to as the ratio between a and b if a and b are two values of the same kind and with the same units, such that b is not equal to 0. Ratios are represented by the colon symbol (:). As a result, the ratio a/b has no units and is represented by the notation a: b.
Given:
Charge for one Album = $7
Each song charges = $1.5
Total Albums and songs sold = 170
and, total worth of both = $442.00
The system of Equations can be
x + y = 170
and, 7x + 1.5y = 442
Then, 7x + 1.5(170 - x) = 442
7x + 255 - 1.5x = 442
5.5x = 187
x= 34
and, y= 170- 34 = 136
So, ratio = 34 / 136
= 1/4
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HELP FAST I'LL MARK YOU BRAINLIEST
Answer:
y = -2x + 12
Step-by-step explanation:
Step 1: find the slope
y = 1/2x + 5
The equation of the line is
y = mx + c
m - slope
m = 1/2
Note : if two lines are perpendicular to the other, both lines are negative reciprocal of each other
m = -2
Step 2 : using a point slope form
y - y1 = m( x - x1)
( 2 , 5)
x1 = 2
y1 = 5
y - 2 = -2( x - 5)
y - 2 = -2x + 10
y = -2x + 10 + 2
y = -2x + 12
The equation of the line is
y = -2x + 12
I dunno the answer so I just found another answer I found in here for this question:P
Sorry- it’s useless
solve for the missing side
Answer:
7.28011
Step-by-step explanation:
a² + b² = c²
7² = 49
2² = 4
49 + 4 = 53
√53 = 7.28011
Answer:
Step-by-step explanation:
2^2+b^2=7^2
4+b^2=49
b^2=45
b= 6.708
A copy machine can print 340 color copies every 8 minutes. So how many copies can be made 28 minutes
Answer:
1190
Step-by-step explanation:
We have the ratio: 8:340 which means that 340 copies are printed in 8 minutes
We want to find out how many color copies are printed in 1 minute so we divide by 8
so our new ratio is now 1:42.5
We now multiply this ratio by 28 to find out how many are printed in 28 minutes
28:1190
our answer is 1190 copies
Jerome bought a pair of the new UGG boots for men that was on sale for 30% off the original price of $129.95. Which is closest to the sale price of the pair of shoes?
Answer:
$90.98
Step-by-step explanation:
Professional chefs usually measure ingredients by weight
rather than by volume. A recipe calls for 2 ounces of
flour for every 3 ounces of sugar. If you are a chef and
you use 12 ounces of sugar, how many ounces of flour
should
you
use?
F(x)=-x^3+24x^2-179x+495 determine the
Average rate of change of f(x) between x=2 and x=5
Answer:
The average rate of change is -75
Step-by-step explanation:
The Average Rate of Change (ARC)
It's a measure of how much the function changed per unit, over a given interval.
Given a function F(x) and an interval between x=a and x=b, the average rate of change is:
[tex]\displaystyle A=\frac{F(b)-F(a)}{b-a}[/tex]
The function is:
[tex]F(x)=-x^3+24x^2-179x+495[/tex]
and it's required to find the ARC between x=2 and x=5.
Calculate F(2) and F(5):
[tex]F(2)=-2^3+24*2^2-179*2+495=225[/tex]
[tex]F(5)=-5^3+24*5^2-179*5+495=75[/tex]
The ARC is:
[tex]\displaystyle A=\frac{75-225}{5-3}=\frac{-150}{2}=-75[/tex]
The average rate of change is -75
Solve the following system algebraically, for values a, b, and c.
2a + b + c = 17
1/2c = 5
a-b=5
Answer:
a= 4
b= -1
c= 10
Step-by-step explanation:
First we start by multiplying both sides of 1/2c = 5 by 2.
c = 10
Add b to both sides of the last equation to make it a=b+5
knowing these two things, we can plug them into the first equation like this:
2(b+5) + b + 10 = 17
then you solve for b:
distribute the 2
2b + 10 + b + 10 = 17
combine like terms
3b + 20 = 17
subtract 20 from each side
3b = -3
divide by 3
b = -1
then you can plug that into the last equation again so a - (-1) =5
Subtracting a negative is the same as adding so its a + 1 = 5 or a = 4
A farm stand sells oranges in 3-lb bags for $3.75. What equation represents the cost, c, for p pounds of oranges?
A) c = 1.25p
B) p = 1.25c
C) c = 3.75p
D) p = 3.75c
help pls
Hi, Can you please help.
What is a common denominator for 1/7 and 1/3?
a 18
b 21
c 3
d 4
Answer:
B. 21
Step-by-step explanation:
The fractions are there to just make the problem seem complicated, but just rewrite it without the fractions.
"What is a common multiple for 7 and 3?"
In this problem it's easy, all you have to do is guess and check.
A: A doesn't work. 7 is not a factor of 18.
B: B works! Both 3 and 7 are factors of 21.
C: C doesn't work. 7 is not a factor of 3.
D: D doesn't work. Neither are a factor of 4.
They only leave us with one solution, B.
Sam has to pay a 15% tax on a boat that cost him $500. He believes he can determine the tax he owes using the calculation: 15 x 5
Answer:
$75
Step-by-step explanation:
Cost = $500
Sam has to pay a 15% tax
To compute his tax, we use the step outlined bellow
tax= 15/100*500
tax= 0.15*500
tax=$75
Hence his tax is $75
Quickkk please help and how all work
x=3y-1
3x+4y=10
Answer:
y=1, x=2
Step-by-step explanation:
so first solve for y. plus x=3y-1 into the other equation.
so 3(3y-1)+4y=10.
Simplify
9y-3+4y=10 Add 3 to both sides
9y+4y=13 Add
13y=13 . Divide 13 from both sides
y=1
Plug 1 into the first equation.
x=3(1)-1
x=3-1
x=2 and y=1
please help me please will give its about negative numbers
Answer:
D. x>-3
Step-by-step explanation:
Since the dot on -3 is not shaded in we know it is not ≤ or ≥ so option A and C are eliminated.
Remember if the arrow is pointing to the left (<-----) Then it is Less-than which is <.
If the arrow is pointing to the right (----->) Then it is Greater-than which is >.
Since the arrow is pointing right the answer will be x>-3 which is D
Calculate the force when the pressure is 18 N/M squared and the area is 4 M squared.
The parallelogram shown represents a map of the boundaries of a natural preserve. Walking trails run from points A to C and from points B to D. The measurements shown represent miles. Parallelogram A B C D is shown. Diagonals are drawn from point A to point C and from point D to point B and intersect at point E. The length of D E is y + 2, the length of E B is 3 y minus 4, and the length of E C is 2 y minus 3. What is the sum of the lengths of the two trails? 6 miles 12 miles 16 miles 36 miles
Answer:
[tex]16\ \text{miles}[/tex]
Step-by-step explanation:
In a parallelogram the diagnols bisect each other. So,
[tex]DE=EB\\\Rightarrow y+2=3y-4\\\Rightarrow 4+2=3y-y\\\Rightarrow 6=2y\\\Rightarrow y=\dfrac{6}{2}\\\Rightarrow y=3[/tex]
[tex]DE=y+2\\\Rightarrow DE=3+2\\\Rightarrow DE=5[/tex]
[tex]BD=2DE\\\Rightarrow BD=2\times 5\\\Rightarrow BD=10[/tex]
[tex]EC=2y-3\\\Rightarrow EC=2\times 3-3\\\Rightarrow EC=3[/tex]
[tex]AC=2EC\\\Rightarrow AC=2\times 3\\\Rightarrow AC=6[/tex]
The sum of the diagonals is [tex]BD+AC=10+6=16\ \text{miles}[/tex]
The sum of the lengths of the two trails is [tex]16\ \text{miles}[/tex].
Answer:
16 Miles
Step-by-step explanation:
Just took the quiz and got it right
What is −2x−6y= 6 in slope-intercept form?
Answer:
y=1+1/3x
Step-by-step explanation:
What happens if the length of the
hypotenuse is missing?
• We can solve for the length of
the hypotenuse
• Let's use the Pythagorean
Theorem
a?+ b2 = c2
2222
3
Solve:
5
Answer:
c² = 34
Explanation:
Pythagorean Theorem: a² + b² = c²
Insert 3 and 5 into the equation3² + 5² = c²
Simplify3² = 9
5² = 25
9 + 25 = 34
34 = c²
- PNW
______________________________
1.) To find c, you must fill in the formula:Formula: [tex]a^2+b^2=c^2[/tex][tex]a^2=3^2[/tex][tex]b^2=5^2[/tex]- When finding c, it doesn't matter what you put for a or b. So if you want to make a = 5, and b = 3, it wouldn't make any difference.
2.) Find the powers of a and b:[tex]3^2=9[/tex][tex]5^2=25[/tex]3.) Add a and b together:[tex]9+25=34[/tex]______________________________
A department store is having a “half price” sale. Which is equivalent to “half price”?
a 21
B 0.05
D 50%
C 0.5%
HELPPP MMEEEE
Answer:
d. 50%
Step-by-step explanation:
Please help me with this homework
The seventh grade class is putting on a talent show to raise money for a class trip. It costs $500 to rent the banquet hall they are planning on using. If they charge $15 per ticket, how many tickets do they need to sell in order to raise at least $1000? Part A The variable in this problem will represent the number of Part B Choose the correct inequality to represent the story problem
Answer:
Part A; 15x
Step-by-step explanation:
Part A; 15(67)
= $1005
Part B; ??
The number of tickets to be sold if, The cost of the banquet hall is $500, The cost per ticket is $15, the Total money to be raised is $1000, is 67, and the equation is given by 1000 = 15x.
What is the equation?Equation: A declaration that two expressions with variables or integers are equal. In essence, equations are questions and attempts to systematically identify the solutions to these questions have been the driving forces behind the creation of mathematics.
In other terms, it is a mathematical statement stating that "this is equivalent to that."
Given:
The cost of the banquet hall = $500,
The cost per ticket = $15,
Total money to be raised = $1000
Write the equation of the number of tickets as shown below,
1000 = 15x
Here, x is the number of tickets,
x = 1000 / 15
x = 66.67 or 67
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Solve: 11-x=x-3 pls help quicky
Answer:
x=7
Step-by-step explanation:
11+3=14, x+x=2x, divided by two, x=7
7. Use substitution. What is the
solution of the system of
equations?
y = -4x + 11
8x + 2y = 14
A. X = 6, y = 7
B. x = 6, y = -7
C. Infinitely many solutions
D. No solution
PLEASE HELP AND PLEASE LOOK AT THE OTHER QUESTIONS I ASKED
Answer:
No solution, D
Step-by-step explanation:
If you rewrite the second one to be the y=mx+b form then you get
8x-14= -2y
Divide by -2 and get
-4x+7=y
Because the slopes are the same the lines will never intersect which means there is no solution
What is 0.77 as a percent?
Work out 1/3 of 0.25 of 48% of £340
Answer:
0.083
163.20
Step-by-step explanation:
PLEASE HELP ILL GIVE BRAINLIEST Which equation choice could represent the graph shown below?
Answer:
A, x(x-4)
Step-by-step explanation:
None of them will give you the vertex you want but the x intercepts are only correct for A
Answer:
Its The Bottom Right one I think D
Step-by-step explanation:
Solve the system by substitution.
1.
5x + y = -17
-3x - 3y = 3
Solve the systems by elimination.
2.
x - y = 11
2x + y = 19
3.
-7x + y = -19
-2x + 3y = -19
4.
4x + 6y = 10
6x = 9y - 3
Answer:
1. (-4 , 3) : substitute way .
2. (10 , -1) : elimination way.
3. (26/7 , -26/7 ) : elimination way.
4. ( 1 , 1) : elimination way.
Step-by-step explanation:
NEED HELP ASAP PLZ!!!!!!!!
Jessica runs between 3 and 7 miles per day. It takes Jessica 12 minutes to run one mile. What is a reasonable amount of time that Jessica spends running every day?
A.
36 minutes
B.
120 minutes
C.
84 minutes
D.
60 minutes
Answer:
120
Step-by-step explanation:
2+2 help me I am in first grade and this is my homework and I don’t know it
Answer:
2+2=4
Step-by-step explanation:
Can somebody help me? Will mark brainliest.
Answer:
4
Step-by-step explanation:
Given the triangle AEC - trianhle BED the 4th equation, ED/EC = AC/BD is true.
Point A is located at (-5, -3.5). Point B is located at (-5, 1). What is the distance between point A and point B?(THERES NO PICTURE)
Answer:
how we go answer it
Step-by-step explanation:
