Answer:
The way I learned was by determining the denominator such 7/10 would be 0.7 because 7 is located in the tenths place.
/G/To convert a fraction to a percent, first divide the numerator by the denominator. Then multiply the decimal by 100 .
1. Howard's CD House sells new CDs for $15 each and used CDs for $6 each. Bre'anna bought 51 CDs and spent a
total of $576 on the CDs. If n represents the number of new CDs, and u represents the number of used CDs, how
many of each type of CD did she buy?
The numbers of new CDs is 30 and the old CDs is 21.
To solve this problem, we have to write a system of equations in which we would know the numbers of each types of CD she bought.
System of EquationsThis is used to solve a series or complex of word problems in which we can represent in a mathematical statements;
Let n represents numbers of new CDsLet u represents numbers of old CDsThe equations can be represented as
[tex]n + u = 51 ...equation(i)\\15n + 6u = 576 ... equation(ii)[/tex]
Let's take equation (i)
Making n the subject of formula
[tex]n + u = 51\\n = 51 - u...equation(iii)[/tex]
we can put equation (iii) into equation (ii)
[tex]15n + 6u =576\\n = 51 - u\\15(51 - u) + 6u = 576\\765-15u + 6u = 576\\collect like terms\\765-576=15u - 6u\\189=9u\\9u/9 = 189/9\\u = 21[/tex]
Let's put the value of u into equation (i)
[tex]n + u = 51\\u = 21\\n + 21 = 51\\n = 51 - 21\\n = 30[/tex]
From the calculations above, the numbers of new CDs is 30 and the old CDs is 21.
Learn more on system of equations here;
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Noah bought a new car costing $25,350 He took out a 5 year loan at a simple interest rate of 6.5% How much interest did Noah pay on his car loan? $
(BRAINLIEST IF CORRECT!!)
Answer: 8238.75
Work Shown:
i = P*r*t
i = 25350*0.065*5
i = 8238.75
Answer:
He paid $6591 on his car loan
we looking for distance
Answer:
240 m
Step-by-step explanation:
Figure is attached.
The distance the particle travels is the area under the v-t graph over the time interval from 0 min to 4 min. The reason you can't just multiply velocity by time is that the velocity is changing at a constant rate over the given time interval (the line is going upward--the particls is speeding up).
What's the area under the graph?
The red outline forms a trapezoid. The area of a trapezoid is [tex]A=\frac{1}{2}h(b_1+b_2)[/tex] where the b's are the lengths of the two parallel base and h is the height (the distance between the bases).
Reading the graph carefully (notice the scales!)...
[tex]A=\frac{1}{2}(4)(30+90)=(2)(120)=240 \text{m}[/tex]
10
———
math
——-
pls help geniuses!!
———
Answer:
A
Step-by-step explanation:
( 5,-6 )
( 5,-12 )
Solve for the equation below please show your work and no links please
[tex](\frac{8^{4} }{10^{4} } )^{-1/4}[/tex]
Answer:
The answer is 5/4
Step-by-step explanation:
(8⁴ ÷ 10⁴)^-1/4
∜10⁴ ÷ 8⁴
10/8 = 5/4
Thus, The answer is 5/4
-TheUnknownScientist 72
Bill worked 24 hours last week and earns $8.25 per hour. Use front-end estimation to find
an estimate of the total amount of money he earned.
A) $160 B) $180 C)$200
D) $270
Answer:
198 dollars
Step-by-step explanation: First you make the 24 into a decimal, you can put 2 0s to make it 24.00. Then you line up the 8.25 and the 24.00 like this 24.00
x 8.25 then multiply away! don't bother with decimals for now. once you finish multiplying count how many numbers are behind the decimal and move the decimal that many times.
what are the coordinates of -1,0 after a translation 5 units to the right
(4, 0)
To the right means positive, and a change in the x-point. Therefore, -1 + 5 = 4.
Find the common ratio of the following sequence:
192, -48, 12, -3, ...
Answer:
yess something i did recently
Step-by-step explanation:
-48/192=-1/4
55% of the cookies joel baked had chocolate chips. If joel baked 77 cookies with chocolate chips, how many total cookies did he bake?
One species of fish in a fishery had an initial population of 255 fish and grew by 25 fish each season. A second species that was being overfished started with an initial population of 450 fish, and then decreased by 40 fish each season. Assuming a linear change, write equations for the populations of each species. When will the two populations have the same amount of fish? After how many seasons will the second species be eliminated?
Answer:
they intersect at 3.5 seasons, 312 fish. the second gets elimed at 11 seasons
Step-by-step explanation:
equations:
first:
amount of fish = 225 + 25*season
second:
amount of fish = 450 - 40*season
simultaneous equations find x and y
2x/ y + y/ x =3
3x-y=2
Answer:
x = 1 and y = 1
Step-by-step explanation:
2x/y + y/x = 3
3x - y = 2
we first of all get the simple equation from the two equations and in this case we will use substitution method
3x - y = 2
then we make y the subject of the formula
y = 3x - 2
let's use y on the top equation to substitute
2x/y + y/x = 3
2x/3x - 2 + 3x - 2/x
like terms cancel
thus:
2x/1 + 1/x = 3
3x -2x = 1
x = 1
ANDAND since we have x, we still use substitution method to find y
3x - 2 = y
3 (1) - 2 = y
3 - 2 = y
y = 1
PLS HURYYY LAST. 2 (100 POINTS)
Answer:
A) ΔABC ∼ ΔEDC , because m∠2 = m∠6 and m∠1 = m∠5
Use the function below to find f(2).
Answer:
[tex]\frac{16}{3}[/tex]
Step-by-step explanation:
To solve this, let's substitute 2 for x:
[tex]f(2)=\frac{1}{3}*4^2\\f(2)=\frac{1}{3}*16\\f(2)=\frac{16}{3}[/tex]
y=2x+4
y=2
using substitution
Answer:
x = -1
Step-by-step explanation:
use the value of y and plug it in
2 = 2x + 4
-4. -4
-2 = 2x
divide each side by 2
-1 = x
you can plug it back in to see if it is right
Answer:
y=2x+4 y=2
2=2x+4
-4 -4
2x= -2
---- ----
2 2
x = -4
Step-by-step explanation:
CHECK:
step 1: Plug everything in.
2=2 correct y=2x+4
2=2(-4)+4
2= -8+4
2= -4
divide 4 by 2
2= -2 correct pls mark as brainliest!
Determine if the two figures are congruent by using transformations. Explain your reasoning whoever answers correctly I will mark your answer brainliest
Answer:
1. No, the shape has changed its size so it cannot be congruent.
2. Yes, shape was rotated but stayed the same shape and size so they are congruent.
Select the expression that has a sum of 74/100
Full question
Select the expression that has a sum of 74/100
A.70/100+4/10
B.68/100+6/10
C.6/10+12/100
D.4/10+34/34/100
1. Observe question
2. Crossout way to find answer
A is not, because the sum of A is 110/100
B is not, because the sum of B is 128/100
C is not, because the sum of C is 72/100
Therefore, the answer has to be D
whats an irrational number
learning about graphs:
me : haha lines go bRRrR
Answer:
see explanation below
Step-by-step explanation:
1) 2011 sum
(6+8)100
14(100) = 1400 coins collected
2) 2015 difference
(6-4)100
2(100) = 200 coin difference
3) Henry is red. just look at the points where red is ABOVE blue
2011, 2014, 2015
4) you can take your answer from one and add it to the coins collected in 2010
1400 + (4+8)100
1400 + (12)100
1400 + 1200
2600 coins
5) Chris is in blue. just look at the points where blue is ABOVE red
3 years
but it asks months
so 3*12 and you get 36 months
Grace sold 9kg of cabbage at P45.50 per kilogram and 12kg of potatoes at P52.75 per kilogram. How much did Grace earn from all her vegetable sales?
Write an algebraic expression that represents each verbal expression: 6 times a number plus 3
[tex]\huge \text{Hello there! :)}[/tex]
Answer:
The algebraic expression is as followed:
➛ [tex]\huge \text{6(n+3)}[/tex]Step-by-step explanation:
Given the following question:
➛ 6 × a number➛6 × n➛plus 3 ➛ equals6(n+3)what is a algebraic expression?It's an equation built up by integers, variables, and many different operations like addition and subtraction.In this case 6 and 3 are the integersn is the variable6 times and + 3 are the operationsAll form together to make a algebraic expression.Hope this Helps! :)If you have any doubts about my answer please let me know.
[tex]-Nature-[/tex]
[tex]\huge \text{Thanks for choosing Brainly! :)}[/tex]
A bag contains 7 green marbles,2 white marble s, 5 orange marbles,9 blue marbles, and 7 red marbles. a marble will be drawn from the bag and replaced 180 times what is a reasonable prediction for the number of times a white or red marble will be drawn?
The reasonable probability that a white or red marble will be drawn all 180 times is; (3/10)¹⁸⁰.
Probability with replacementSince the probability is with replacement;
First, the total number of marbles in the bag is; 7+2+9+5+7 = 30.Hence, the probability that a white or red ball is drawn each time is; 2+7 = 9 possible outcomes.
Hence, it follows that the probability for white or red each time is; 9/30 = 3/10
Hence, when drawn 180 times, the probability is;
P = (3/10)¹⁸⁰.Read more on probability;
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Arun bought a pair of skates at the sale where the discount given was 20%. If the amount he pays is 1600 find the marked price
Answer:
2000
Step-by-step explanation:
1600 is 100% - 20% = 80% of the original price.
So it is 4/5 of the original price.
So, the marked price is 1600 * 5/4 = 2000
Can somebody please answer this question but with showing your work, thank you!!!
I WILL GIVE BRAINLIEST TO ANYONE WHO CAN SOLVE THIS FAST AND CORRECTLY :DDDD
Answer:
decrease 1°C
Step-by-step explanation:
Solution:
[tex]-4-(-3)\\ =-4+3\\ =-1[/tex]
decrease 1°c
Answer:
the answer is a positive 1 degrees
Step-by-step explanation:
6xy - 4y + 6 - 9x
Factorise pls answer
Answer:
(3x-2)(2y-3)
Step-by-step explanation:
[tex]6xy-4y+6-9x[/tex]
[tex]\left(6xy-4y\right)+\left(-9x+6\right)[/tex]
[tex]2y\left(3x-2\right)-3\left(3x-2\right)[/tex]
[tex]\left(3x-2\right)\left(2y-3\right)[/tex]
Hope this helps!
Determine if the given relation is a function. Explain your answer.
/y/=x
PLS PLS PLS PLS HELP ASAPPPP
Answer: sqrt(650)
Step-by-step explanation:
sin 45 = 5sqrt(13)/y
y = 5sqrt(13)*2/sqrt(2) = 10sqrt(13)/sqrt(2) = sqrt(650)
CORRECT ANSWER GETS BRAINLIESTT!!!!!!!!!
Answer:
The area of the rectangle is 32 in^2
Step-by-step explanation:
Answer:
Polynomial Expression: w^2 + 4w
Area: 32 inches squared
Step-by-step explanation:
w^2 + 4w
(4)^2 + 4(4)
16 + 16
32
Please answer this (who ever answers correctly gets brainlest)
Answer: 45ft
Hope this helps
which of the following lines represents the equation y = 2x + 3?
A, B, C, or D
please help!!
13 points & brainliest :)
Answer:
D
Step-by-step explanation:
It would first me (0,3) and then (2,3)
Convert 2 inches into centimeters. Round your answer to the nearest tenth.
Please answer quick if you get it right I will mark you a Brainliest
Answer:
5.1
Step-by-step explanation:
multiply the length value by 2.54
2x2.54=5.08, which rounds to 5.1
if the given length is 2 inches. The obtained length in the centimeter will be 5.1 cm to the nearest tenth.
What is unit conversion?It is defined as the conversion from one quantity unit to another quantity unit followed by the process of division, and multiplication by a conversion factor.
It is given that, the length is 2 inches.
We have to convert the given length is in centimeters,
As we know,1 inch consists of 2.54 cm.
1 inches = 2.54 cm
So for 2 inches, we have to multiply the obtained data by 2 as,
2 inches = 2.54 × 2
2 inches = 5.08 cm
The obtained value to the nearest tenth will be 5.1 cm.
Thus, if the given length is 2 inches. The obtained length in the centimeter will be 5.1 cm to the nearest tenth.
Learn more about the unit conversion here:
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