Answer:
the answer to this question is 9
Answer: HOPE THIS HELPS!!!
Step-by-step explanation:
Let a = number of large frames she bought
Let b = number of small frames she bought
--------------------------------------
(1) a+B+=27
(2) 14a+7b=245
-----------------------
There are 2 equations and 2 unknowns
so it's solvable
---------------
Multiply both sides of (1) by 7
and subtract (1) from (2)
(2) 14a+7b=245
(1) -7a-7b=-189
-----------------------
7a=56
a=8
and
(1) a+2B=27
(1) 8+b=27
(1) b=19
------------------
She bought 8 large frames and 19 small frames
------------------
check:
(2) 14+7b=245
(2) 14*8+7*19=245
(2) 112+133+=245
(2) 245=245
A recent newspaper article claimed that more people read Magazine A than read Magazine B. To test the claim, a study was conducted by a publishing representative in which newsstand operators were selected at random and asked how many of each magazine were sold that day. The representative will conduct a hypothesis test to test whether the mean number of magazines of type A the operators sell, μAμA, is greater than the mean number of magazines of type B the operators sell, μBμB. What are the correct null and alternative hypotheses for the test?
A. H0:μA−μB=0Ha:μA−μB>0H0:μA−μB=0Ha:μA−μB>0
B. H0:μA−μB<0Ha:μA−μB>0H0:μA−μB<0Ha:μA−μB>0
C. H0:μA−μB=0Ha:μA−μB≠0H0:μA−μB=0Ha:μA−μB≠0
D. H0:x¯A−x¯B=0Ha:x¯A−x¯B>0H0:x¯A−x¯B=0Ha:x¯A−x¯B>0
E. H0:μB−μA=0Ha:μB−μA>0H0:μB−μA=0Ha:μB−μA>0
Answer:
Option A.
Step-by-step explanation:
The representative will conduct a hypothesis test to test whether the mean number of magazines of type A the operators sell, μAμA, is greater than the mean number of magazines of type B the operators sell, μBμB. What are the correct null and alternative hypotheses for the test?
To verify this, the distribution used is [tex]\mu_{A} - \mu_{B}[/tex]
The null hypothesis is an equality, which means that it is:
[tex]H_{0} = \mu_{A} - \mu_{B} = 0[/tex]
At the alternate hypothesis, we want to test if the mean number of type A is greater than type B, that is, the distribution is positive. So
[tex]H_{A} = \mu_{A} - \mu_{B} > 0[/tex]
So the correct answer is given by option A.
How many ounces are in 43 pounds?
Answer:
688 ounces.
Step-by-step explanation:
This answer is correct, pls give brainliest :))
Steps:
Multiply the mass value by 16.
43 x mv = 688
Which expressions are equivalent to
565x+7)-3(x-4)? Select three options.
Answer:
1001
Step-by-step explanation:
$2200/month&£-£+£+£
Round to the nearest tenth
Answer:
Step-by-step explanation:
Pythagorean theorem: b² + 6² = 14²
b² = 14² - 36² = 160
b = 4√10
sin(A) = 6/14 = 3/7
∠A = arcsin(3/7) ≈ 25.4°
∠B ≈ 90° - 25.4° = 64.6°
a and b are positive integers and a–b = 3. Evaluate the following:
27/1/3 b/9/ 1/2 a
Answer:
[tex]\dfrac{1}{27}[/tex]
Step-by-step explanation:
Given that,
a-b = 3
We need to find the value of [tex]\dfrac{27^{\dfrac{1}{3}b}}{9^{\dfrac{1}{2}a}}[/tex].
We know that,
[tex]27=3^3\\\\9=3^2[/tex]
So,
[tex]\dfrac{27^{\dfrac{1}{3}b}}{9^{\dfrac{1}{2}a}}=\dfrac{3^3^({\dfrac{1}{3}b})}{3^2^{\dfrac{1}{2}a}}\\\\=\dfrac{3^b}{3^a}[/tex]
We know that : [tex]\dfrac{x^p}{x^q}=x^{p-q}[/tex]
So,
[tex]\dfrac{3^b}{3^a}=3^{b-a}[/tex]
Since, b-a = -3. So,
[tex]3^{b-a}=3^{-3}\\\\=\dfrac{1}{3^3}\\\\=\dfrac{1}{27}[/tex]
So, the value of the given expression is equal to [tex]\dfrac{1}{27}[/tex].
Find x (im so confused)
Madeline invested $960 in an account paying an interest rate of 3.5% compounded daily. Assuming no deposits or withdrawals are made, how long would it take, to the nearest year, for the value of the account to reach $1,250?
Answer:
It is 8 years
Step-by-step explanation:
Answer:
Answer:
It is 8 years
Step-by-step explanation:
Step-by-step explanation:
Lauren is going to invest $740 and leave it in an account for 9 years. Assuming the
interest is compounded monthly, what interest rate, to the nearest tenth of a percent,
would be required in order for Lauren to end up with $920?
Answer:
2.4
Step-by-step explanation:
If ABCD is a parallelogram, m
A
B
(3x + 4)º
D
xº
C
Equation:
X=
(PLEASE HELP)
Answer:
x is 44 because
3x+4+x=180
4x=180-4
4x=176
x=44
Find the Area of the Shaded Region.
Round to the nearest tenth if necessary.
6 m
(5 m
15 m
15 m
Answer:
195 m
Step-by-step explanation:
Both shapes follow the formula: A = bh
The Big Square:
15 x 15 = 225
The Small Square:
6 x 5 = 30
225 - 30 = 195
Answer and explain PLEASE ILL MARK BRAINLIEST
Answer:
(1, -2), or x = 1, y = -2
Step-by-step explanation:
Either solve for the first variable in one of the equations, then substitute the result into the other equation, or use a graphing tool to find the point at which the linear equations conjoin.
the lowest point of the dry lake bed in the example has an elevation of -18 3/4 ft what number represents the change in elevation from the start of the path to the lowest point in the dry lake bed show your work (my teacher said she messed it up so it’s the same question just the numbers are -18 3/4 - (-12 1/2) explain how !
Answer:
the lowest point of the dry lake bed in the example has an elevation of -18 3/4 ft what number represents the change in elevation from the start of the path to the lowest point in the dry lake bed show your work (my teacher said she messed it up so it’s the same question just the numbers are -18 3/4 - (-12 1/2) explain how !
A building company completes 42 homes every 2 months.
At this rate, how many homes can the company complete in 6 months?
126
Step-by-step explanation:
the ratio is 2months- 42 homes
6-126 = (2-42)x3
Answer:
the answer is a or b
Step-by-step explanation:
Pls help this is due today!
Find the width of a rectangular prism that has a height of 43 ft., a length of 23 ft and a surface area of 5,278 ft.2
Use the formula: SA = 2lh + 2lw + 2wh
Answer:
do you have a picture of this
Answer:
width = 25 ft
Step-by-step explanation:
SA = 2lh + 2lw + 2wh
5278 = (2)(23)(43) + (2)(23)(w) + (2)(w)(43)
reduce:
5278 = 1978 + 46w + 86w
subtract 1978 from each side:
3300 = 132w
divide both sides by 132
w = 25
Enter the value of 2 • 43 +4.
PLEASE ANSWER QUICK
Answer: 90
Step-by-step explanation:
2*43+4
86+4
90
Answer:
94
Step-by-step explanation:
43 +4 = 47
47 x2 = 94
help!!!!! will give big brain
I need to know the equation of the line shown on the graph. It would be greatly appreciated for any of these
Answer: Top left one is y=-2/3-1
Step-by-step explanation:
Solve the following system of equations. Express your answer as an ordered
pair in the format (a,b), with no spaces between the numbers or symbols.
2x + 7y= - 7
- 4x – 3y = – 19
Answer:
(7,-3)
Step-by-step explanation:
Angela plans to buy new flooring for her bedroom. Her bedroom floor is a rectangle that is 7.9 meters by 6.2 meters. a. How many square meters of floor space does her bedroom have? meters squared b. Suppose the flooring costs $5.90 per square meter. How much will the flooring cost? (use a dollar sign and NO SPACES)
part A is 48.98 meters squared. part B is $288.982.
Step-by-step explanation:
To find the area of the flooring you multiply 7.9 and 6.2 which gives you 48.98 meters squared. Then for part B you take your product from part A and multiply it by $5.90, giving you $288.982.
I hope this helps
What is the total cost of a video game that is $59.99 with a sales tax of 7%?
Answer:
Your total will be $64.19
Step-by-step explanation:
I know this because 7% is $4.20 and so if i add $59.99 to $4.40 i will get $64.19:)
What is the solution to the equation?
x
3
=
21
At the city museum, child admission is $5.20 and adult admission is $8.60 . On Saturday, 159 tickets were sold for a total sales of $1054.60. How many child tickets were sold that day?
Step-by-step explanation:
You can call c the number of children and a of adults; you get:
5.20c+8.50a=1097.60
and
a=4c meaning that the number of adults was four times the children.
Substituting this value of a into the first equation we get:
5.2c+8.5(4c)=1097.6
5.2c+34c=1097.6
rearranging:
c=1097.639.2=28
and so:
a=4c=4⋅28
The chart below shows one store’s sales of computers, listed by model. 2 circle graphs. A circle graph titled May. Poreg, 262; Quilren, 282; Dinztop, 223; Quilren 2, 135; Juvanto, 148. A circle graph titled June. Poreg, 173; Quilren, 184; Dinztop, 148; Quilren 2, 153; Juvanto, 212. If the changes in sales between May and June continue at the same percent rate, how many Dinztop computers will be sold in July? a. 73 b. 98 c. 142 d. 184
Answer:
b. 98
Step-by-step explanation:
May and June:
May: 223 Dinztop sales
June: 148 Dinztop sales.
So
[tex]p = \frac{148}{223} = 0.6637[/tex]
In June, it sold 0.6637 = 66.37% the amount of computers sold in May.
How many Dinztop computers will be sold in July?
Because of the same percent rate, 0.6637 = 66.37% of the amoutns sold in June.
0.6637*148 = 98
The correct answer is given by option b.
what does 1.32 x 4.2 equal
Answer:
5.544
Step-by-step explanation:
1.32 × 4.2 = 5.544
it has to be longer than 20 characters
find the missing side
Answer:
If you are finding the area, then it would be 10 [tex]units^{2}[/tex]. But for the missing side it is probably I would say 7.
Step-by-step explanation:
Are there answer choices? Or is it something you type in a text box?
Thanks! And your welcome!
Eli buys milk and lemons at the store.
He pays a total of $50.59.
He pays a total of $6.35 for the milk.
He buys 7 bags of lemons that each cost the same amount.
How much does each bag of lemons cost?
Answer:
$6.32
Step-by-step explanation:
m + L = total $
6.35 + 7L = 50.59
7L = 44.24
L = 6.32
The triangular pyramid needs square inches of construction paper to make. The square pyramid needs square inches of construction paper to make. The pyramid will need square inches more construction paper to make than the other pyramid. Need help ASAP
Answer:
Please post the figure
Step-by-step explanation:
Find the area of the shape above.
A. 28 square inches
B. 30 square inches
C. 34 square inches
D. 36 square inches
HELP ME PLS ASAP PLS PLS ASAP
4(2h+g) can y’all tell me how to solve it please
Answer:
Step-by-step explanation:
4(2h+g)
8h + 4g
[tex]4(2h + g)[/tex], distribute by multiplying 4 × 2h = 8h and 4 × g = 4g
[tex]8h + 4g[/tex], final answer
hope this helps you understand :)
Will give brainliest if you awnser all math questions
1. Growth curve A represents $200 saved at 2.5 percent simple interest. Growth curve B represents $200 saved at 2.5 percent interest, compounded quarterly.
Which savings account is growing fastest?
They are growing at the same rate.
simple interest
compounded quarterly
2.Growth curve A represents $200 saved at 2.5 percent simple interest. Growth curve B represents $200 saved at 2.5 percent interest, compounded quarterly.
Use the graph shown to estimate the amount in Account A in 30 years.
$340
$350
$370
$400
3.Growth curve A represents $200 saved at 2.5 percent simple interest. Growth curve B represents $200 saved at 2.5 percent interest, compounded quarterly.
Use the graph shown to estimate the amount in Account B in 30 years.
$400
$410
$420
$450
4.Growth curve A represents $200 saved at 2.5 percent simple interest. Growth curve B represents $200 saved at 2.5 percent interest, compounded quarterly.
What is the approximate difference between the two accounts in 20 years?
$100
$50
$25
$10
5.Growth curve A represents $200 saved at 2.5 percent simple interest. Growth curve B represents $200 saved at 2.5 percent interest, compounded quarterly.
Why is the amount much higher in the compounded interest account?
The account started with more money.
The account is in a better bank.
The interest rate is higher.
The account pays interest on both the principal and the interest accumulated.
Answer: Compounded quarterly, 350, 420, 25, the account pays interest on both the principal and the interest accumulated.
Step-by-step explanation:
Question 1: Compounded quarterly is growing fastest because it's broken down more than what simple interest does and therefore is faster instead.
Question 2: Account A in 30 years would be 350, I did this problem and eyeballed it. Trust me.
Question 3: Account B in 30 years would be 420.
Question 4: The approximate difference between the two accounts in 20 years would be 25.
Question 5: If the rate of interest is annual and the interest is compounded quarterly then the number of years is 4 times and the rate of annual interest is one-fourth. Therefore, the account pays interest on both the principal and the interest accumulated.
Hope this helps
The simple interest and compound interest are solved for both the curves
a) The compound interest is growing fastest
b) the amount in Account A in 30 years A = $ 350
c) The amount in Account B in 30 years is B = $ 420
d) The difference between the two accounts in 20 years = $ 25
What is Compound Interest?Compound interest is interest based on the initial principle plus all prior periods' accumulated interest. The power of compound interest is the ability to generate "interest on interest." Interest can be added at any time, from continuously to daily to annually.
The formula for calculating Compound Interest is
A = P ( 1 + r/n )ⁿᵇ
where A = Final Amount
P = Principal
r = rate of interest
n = number of times interest is applied
b = number of time periods elapsed
Given data ,
a)
Let the 2 curves be represented as A and B
Now , the amount invested by A = $ 200
The rate of simple interest = 2.5 %
And , the amount invested by B = $ 200
The rate of compound interest = 2.5 %
So , we can say that since it is more thoroughly broken down than basic interest is, compounded quarterly growth is the quickest.
b)
The amount for A in 30 years is given in the graph
A = $ 350
c)
The amount for B in 30 years is given in the graph
B = $ 420
d)
The amount for A in 20 years is given in the graph = $ 300
The amount for B in 20 years is given in the graph = $ 325
The difference between the two accounts in 20 years = $ 325 - $ 300
The difference between the two accounts in 20 years = $ 25
Hence , the compound interest is solved
To learn more about compound interest click :
https://brainly.com/question/21270833
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