You bought 12 bottles of apple juice and orange juice. The apple juice was on sale for $1.00 per bottle. The orange juice was $1.75 per bottle. You spent $15. How many bottles of each type of juice did you buy?
Answer:
8 bottles of apple juice + 4 bottles of orange juice.
Step-by-step explanation:
Okay, again here's what we know:
- Orange Juice is $1.75 per bottle
- Apple Juice is $1.00 per bottle.
Now, if we spend 15 dollars- we need to first find out the orange juice to be able to make it an even. So 1.75 times 4 gets us an even 7 dollars. Now that we have that information, we know that if we do another 4 bottles the price would be okay, but the amount of bottles would not be.
So, then we'll add in the rest in dollars as the apple juice. We have 4 juices but we need 12. So, 12-4=8. Therefor, you need 8 bottles of AJ and 4 bottles of OJ.
I hope this helps and best of luck on your work! Happy Holidays, stay safe!
5th grade math. Correct answer will be marked brainliest.
Answer:
By estimating with whole numbers, 4 x 7 = 28, helps me know that the decimal point should be placed so that the answer is close to 28.
Step-by-step explanation:
Can I have brainliest? TYSM
You round:
3.6 to 4
and
7.4 to 7
4 x 7 = 28 approximately
Janice and her dad are building a treehouse. Her dad bought a box of 155 nails for 3.10andaboxof85screwsfor7.65. How much more do screws cost per piece?
Answer:
$0.07
Step-by-step explanation:
nails = 3.10/155 = 0.02/piece
screws = 7.65/85 = 0.09/piece
0.09 - 0.02 = 0.07
find the inverse f (x) = 8x – 5
Answer:
Step-by-step explanation:
we will replace f(x) with y
y=8x-5
x=8y-5 we solve for y
8y-5=x
y=x/8 +5/8
f^-1=x/8 +5/8
A straight line passes through points (3, 12) and (7,4).
What is the equation of the line?
Answer:
y=-2x+18
Step-by-step explanation:
Since the y-value is going down, we can assume that the line is going negative. As the midpoint is (5, 8), you should subtract 2 units from 3 and a 4 units from 12 to get (1, 16) and therefore to get to (-1, 20), since the y-intercept is 18, the slope is 2, and it is going negative, your final answer is y=-2x+18.
20 points brainliest!!!!
Answer:
c i think
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Cristian was headed to work. What is the probability that he misses the bus and is still on time to work?
Answer:
1/15
Step-by-step explanation:
1/3 x 1/5
12 km
16 km
what is the length of the hypotenuse.
Answer:
the length of the hypotenus is 20km
Write as a decimal number.
9-10
Answer:
.9
Step-by-step explanation:
9 divided by 10
Select two ratios that are equivalent to 7: 10.
Choose 2 answers:
MY
Col
21:30
MY
17:20
Pro
10:13
Pro
26:40
35 : 50
Jacob weighs 64 pounds. Together, he and his sister weigh eight pounds more than two times the wei ght of his sister. What is the weight, w, of Jacob's sister? 64+ w = 2w
Answer:
Ans: 64+w = 2w + 8; 56 pounds
Jacob(J) = 64lbs
J+w=8+(2w)
64+w=8+2w
64-8=2w-w
56=w
In one year, Bob’s savings were $250. Diana’s is saving were 4/5 of Bob’s savings. The next year, Diana increased her savings by 30%. Find the amount of Diana‘s savings the second year.
A. $260
B. $270
C. $230
D. $200
Answer:
A. $260
Step-by-step explanation:
bob = $250
diana = 4/5 of bob
diana = 4/5 x $250
diana = $200 = 100%
30 % inc means she added 30% on top of what she had already which was 100%
30% + 100& = 130%
if 100 % = %200
130% = 130% x $200
100%
= $260
-2(p-1)=13???????//////
A baker used the expression LaTeX: 9\left(15\:+\:Y\right)9 ( 15 + Y ) to show the number of muffins he needed to make. Emily said the expression has the same value as LaTeX: 90\:+\:Y90 + Y. Is Emily correct? Explain your answer.
Answer:
He wrongly distributed 9 over 15 and Y and got the wrong answer. The product of 9 and 15 is 135 not 90.
Step-by-step explanation:
Given the expression used by baker to show the number of muffins he needed to make as [tex]9\left(15\:+\:Y\right)[/tex], we are to check if the expression id equivalent to 90+Y
According to distributive law;
A(B+C) = AB + AC (This shows that A is distributed over B and C)
Applying distributive law on [tex]9\left(15\:+\:Y\right)[/tex]
[tex]9(15+Y) = 9(15) + 9(Y)\\9(15+Y) = 135 + 9Y[/tex]
From the result gotten, we can see that Emily is wrong because he wrongly distributed 9 over 15 and Y and got the wrong answer. The product of 9 and 15 is 135 not 90.
A random sample of 28 items is drawn from a population whose standard deviation is unknown. The sample mean is x=900 and the sample deviation is s = 10. Use appendix D to find the values of student's t. (a) Construct an interval estimate of u with 98% confidence. (Round your answers to 3 decimal places.)
Answer:
795.596≤u≤804.403
Step-by-step explanation:
Confidence interval is expressed using the formula;
CI = xbar ± (z*s/√n)
xbar is the sample mean
z is the z score at 98% confidence
s is the standard deviation
n is the sample size
Given
xbar = 800
z = 2.33
s = 10
n = 28
Substitute into the formula;
CI =800 ± (2.33*10/√28)
CI = 800 ± (2.33*10/5.2915)
Ci = 800± (2.33* 1.8898)
CI = 800 ± 4.4033
CI = (800-4.4033, 800 + 4.4033)
CI = (795.596, 804.403)
Hence an interval estimate of u with 98% confidence is expressed as
795.596≤u≤804.403
2(x+4) + 12 = 38
please help
Answer:
x = 9
Explanation:
So when you solve this you get: 2x + 20 = 38
You would then subtract 20 from 38 to isolate the 'x' variable, thus giving you 2x = 18. From here you would divide by two to completely isolate x.
x = 9. The variable 'x' equals 9. If you put the number 9 into the equation in place of 'x' then you would get 38 = 38, therefore proving that x = 9
A sum of money is shared among Jen, Mary and Lilly in the ratio of 2:3:5. If Mary gives $27 to Jen, then both of them will have an equal amount of money. How much money does Lilly have?
[tex]3x-27=2x+27[/tex]
Given:
Sum of money is shared among Jen, Mary and Lilly in the ratio of 2:3:5.
If Mary gives $27 to Jen, then both of them will have an equal amount of money.
To find:
The money Lilly have.
Solution:
Let Jen, Mary and Lilly have money 2x, 3x and 5x respectively.
Mary gives $27 to Jen, then both of them will have an equal amount of money. It means,
[tex]3x-27=2x+27[/tex]
Isolate variable terms.
[tex]3x-2x=27+27[/tex]
[tex]x=54[/tex]
Now, the money Lilly have is
[tex]5x=5\times 54[/tex]
[tex]5x=270[/tex]
Therefore, Lilly have $270.
What is the sum of (2x+4)+(-3x+9)
Answer:
-x + 13
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define expression
(2x + 4) + (-3x + 9)
Step 2: Simplify
Combine like terms (x): -x + 4 + 9Combine like terms (Z): -x + 13How to get good grades in Maths
Answer:
by stady hard
Step-by-step explanation:
like by do exercise
work sheets
and by ask help a teacher or parents
is 7-y=5x+11 a linear equation
Yes. As long as it is y = mx+b.
Jared buys 2.4 pounds of broccoli for 3.24 dollars. Which equation could Jared use to find c, the cost of each broccoli
Answer:
3.24/2.4=c
Step-by-step explanation:
division
Solve the following literal equation for t;
t+y=p
If mBC= (9x – 53) °and mCD = (2x + 45) ° , find mBAD.
Answer:(7x - 34)
Step-by-step explanation:
In the diagram below of triangle
B
C
D
BCD,
E
E is a midpoint of
B
C
‾
BC
and
F
F is a midpoint of
C
D
‾
CD
. If
E
F
=
6
x
−
31
EF=6x−31, and
B
D
=
64
−
9
x
BD=64−9x, what is the measure of
E
F
EF?
9514 1404 393
Answer:
EF = 5
Step-by-step explanation:
Given:
EF = 6x -31
BD = 64 -9x
BD = 2·EF
Find:
EF
Solution:
BD = 2·EF
64 -9x = 2(6x -31) . . . . substitute the given expressions
64 -9x = 12x -62 . . . . eliminate parentheses
126 = 21x . . . . . . . . . . . add 62+9x
x = 6 . . . . . . . . . . . . . . . divide by 21
Now the length of EF is ...
EF = 6x -31 = 6(6) -31
EF = 5
is -pi a rational or irrational number
Answer:
I believe that it is a irrational number.
Step-by-step explanation:
An irrational number is a number that cannot be written as a fraction with a num and denom that aren't equal to 0. These cannot be expressed as repeating decimals. -pi has all these traits, therefore it's irrational.
Answer:
Irrational
Step-by-step explanation:
A rational number, that is a decimal, is a number that can be written as a fraction. Because pi never ends, it can't be written as a fraction so its irrational.
Have a great day, you amazing bean child.
(Yes you are now my bean child. Get over it)
Find the solution to the following system of equations using the addition method. 2x - y = 5 x + y = 13
Answer:
x = 6
y = 7
Step-by-step explanation:
2x - y = 5
x + y = 13
2x - y = 5
y = 2x - 5
x + y = 13
x + 2x - 5 = 13
3x - 5 = 13
3x = 18
x = 6
y = 2x - 5
y = 2 ( 6 ) - 5
y = 7
Answer:
Step-by-step explanation:
2x - y = 5
x + y = 13
3x = 18
x = 6
6 + y = 13
y = 7
(6,7)
PLEASE HELP VERY URGENT!!!!!!!
Lucy made tables of values to approximate the solution to a system of
equations. First she found that the x-value of the solution was between 1 and
2, and then she found that it was between 1.5 and 2. Next, she made this
table.
Which ordered pair is the best approximation of the exact solution?
O A. (1.7,0.9)
B. (1.5, 1.8)
C. (1.6, 1.3)
D. (1.9.1.5)
Answer:
The correct option is;
C. (1.6, 1.3)
Step-by-step explanation:
Given that at x = 1.5 the y-values of both equations are y = 1.5 and y = 1 respectively
The x-value > The y-value
The difference in the y-values = 1.5 - 1 = 0.5
At x = 1.6 the y-values of both equations are y = 1.2 and y = 1.4 respectively
The x-value > The y-value
The difference in the y-values = 1.2 - 1.4 = -0.2
At x = 1.7 the y-values of both equations are y = 0.9 and y = 1.8 respectively
The x-value > The first y-value and the x-value < the second y-value
The difference in the y-values = 0.9 - 1.8 = 0.9
Therefore, the approximate y-value can be found by taking the average of both y-values when x = 1.6 where the difference in the y-values is least as follows;
Average y-value at x = 1.6 = (1.2 + 1.4)/2 = 1.3
Therefore, the best approximation of the exact solution is (1.6, 1.3)
By calculation, we have;
-3·x + 6 = 4·x - 5
∴ 7·x = 11
x = 11/7 ≈ 1.57
y = 4 × 11/7 - 5 ≈ 1.29
The solution is (1.57, 1.29)
B(n+5)=(n+p)3
what does p=
Answer:
I think it -5
Step-by-step explanation:
A shop owner offered a 40% discount off the regular price of a mirror. The amount of the discount is $6.
What is the regular price of the mirror?
Step-by-step explanation:
the original price of the mirror is not known so we will call it x for now.
The discount on the original price is a 40% discount, so it is 40% of x or 0.4x
We are told that the discount is $6, so 0.2x will = 6. So now we will solve the equation for x.
0.4x = 6
x= 6/0.4
x= 15
The original price is $15
The regular price of the mirror is $15.
What is percentage?Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".
Given that, a shop owner offered a 40% discount off the regular price of a mirror.
Let the regular price of a mirror be x.
The amount of the discount is $6.
Now, 40% of x=6
40/100 ×x=6
0.04x=6
x=6/0.4
x=15
Therefore, the regular price of the mirror is $15.
To learn more about the percentage visit:
brainly.com/question/24159063.
#SPJ2
Samuel orders a video game online for $40.00. He has a 20% discount code,
and the sales tax is 9%. What is the total cost of his order?
Answer:
$34.88
Step-by-step explanation:
If the discount is 20%, then the sale price is 80% of the full (original) cost:
0.80($40.00) = $32.
Sam has to pay 9% sales tax on this $32. The total cost of his order would then be 1.09($32) = $34.88. If desired, you could write this as the equivalent $32 + 0.09($32).
