Answer:
If we take Ryan's age as 'x' then we have Aaron's age as '2x'
Now, we have the sum of their ages after 3 years as 30.
So according to question, we can prepare an equation which is
2x+3+x+3 = 30
= 3x+6 = 30
= 3x = 30-6
= 3x = 24
= x = 24÷3
= x = 8
Thus, Ryan' is 8 years old now.
Now we need to find Aaron's age, and this can be done easily as we have already made an expression fore Aarons age, i.e., '2x'
So 2x= 2×8
= 16.
So we have Aaron's age-16,
Ryan's age-8
How is tha main carecter of the rear
find the value of x and round
Answer:
X=80.4
Step-by-step explanation:
Lol
Step-by-step explanation:
x= 78 approximately
hope this is correct
Item 9
John has $50 in his bank account. He gets his usual allowance of $20 and mows two lawns,eaming $10 each. He puts that money in the bank
Then John spends $45 on a video game
How much money does he have after that purchase? Use the number line to help you find the answer
Answer:
$45
Step-by-step explanation:
bank account=$50
Allowance=$20
mows two lawns at $10 each=$20
$50+$20+$20=
money in bank=$90
video game=$45
$90-$45=$45
10 20 30 40 45
·___ _ ·_∩_·∩__∩·_∩_∩_·___·_ ·__·___·___·___·___·__
$100 90 80 70 60 50 45 40 30 20 10 0
Neeed help please...
Answer: A
Step-by-step explanation:
Question 2 (1 point)
If 5 hours is 25% of the time a trip will take, how long will it take?
Answer:
20 hours
5 hours- 25%
10 hours- 50%
15 hours- 75%
20 hours- 100%
Question 18 of 25 Which of the following statements are not true regarding functions? Check all that apply. O A. A function is a relation in which each value of the input variable is paired with at least one value of the output variable. B. A sequence is a function whose domain is the set of natural numbers. I C. The vertical line test may be used to determine whether a function is one-to-one. OD. The horizontal line test may be used to determine whether a function is one-to-one.
the answer is I C and OD. I hope this helps
y + 51 = 99, what is y?
Answer:
y + 51=99
replace the y with 99
then it becomes 99 - 51
y=48
The ages of the 11 players of a soccer team on the soccer field are shown.
21, 32, 22, 28, 26, 30, 29, 24, 22, 24, 26
What would cause the median age of the players on the field to decrease?
A. replace a 24-year-old player with a 22-year-old player
B. replace a 26-year-old player with a 24-year-old player
C. replace the 21-year-old player with a 20-year-old player
D. replace the 30-year-old player with a 26-year-old player
Answer:
A
Step-by-step explanation:
In addition to the information given in the drawing, which statement would be sufficient to prove
that STW-XYZ?
Number 5
Answer:
[tex]SW= 15[/tex] and [tex]TW= 24[/tex]
Step-by-step explanation:
Given
See attachment for the triangles
Required
Which additional statement proves the similarity of both triangles
From the attachment:
[tex]ST = 27\\XY = 9\\YZ = 8\\XZ = 5[/tex]
The similar sides of both triangles are: ST and XY
So:
[tex]Ratio = ST : XY[/tex]
[tex]Ratio = 27 : 9[/tex]
Divide by 9
[tex]Ratio = 3 : 1[/tex]
Another similar sides are: TW and YZ
So:
[tex]TW : YZ = TW : 8[/tex]
Equate both ratios:
[tex]TW : 8 = 3 : 1[/tex]
Represent as fraction
[tex]\frac{TW }{ 8 }= \frac{3 }{ 1}[/tex]
[tex]\frac{TW }{ 8 }= 3[/tex]
Multiply both sides by 8
[tex]8 * \frac{TW }{ 8 }= 3*8[/tex]
[tex]TW= 3*8[/tex]
[tex]TW= 24[/tex]
Another similar sides are: SW and XZ
So:
[tex]SW:XZ = SW:5[/tex]
Equate both ratios:
[tex]SW:5 = 3:1[/tex]
Represent as fraction
[tex]\frac{SW}{5} = \frac{3}{1}[/tex]
[tex]\frac{SW}{5} = 3[/tex]
Multiply both sides by 5
[tex]5*\frac{SW}{5} = 3*5[/tex]
[tex]SW = 3*5[/tex]
[tex]SW = 15[/tex]
So, the statement that proves the similarity of the triangles is:
[tex]SW= 15[/tex] and [tex]TW= 24[/tex]
A certain financial services company uses surveys of adults age 18 and older to determine if personal financial fitness is changing over time. Suppose that in February 2012, a sample of 1,000 adults showed 410 indicating that their financial security was more than fair. In February 2010, a sample of 1,100 adults showed 385 indicating that their financial security was more than fair.
Required:
a. State the hypothesis that can be used to test for a significant difference between the population proportions for the two years?
b. What is the sample proportion indicating that their financial security was more that fair in 2012?In 2010?
c. Conduct the hypothesis test and compute the p-value.At a .05 level of significance what is your conclusion?
d. What is the 95% confidence interval estimate of the difference between the two population proportion?
Answer:
The calculated z = 2.85 falls in the critical region z > 1.96 so we accept the null hypothesis that there is no difference between the population proportions for the two years.
Step-by-step explanation:
Let p1 be the sample of 1000 adults chosen in 2012 and
p2 be the sample of 1100 adults chosen in 2010
Part a:
The hypothesis that can be used to test for a significant difference between the population proportions for the two years is:
H0: p1-p2= 0 against the claim Ha: p1-p2≠0
Part b:
The sample proportion indicating that their financial security was more that fair in 2012 is
p1^= 410/1000= 0.41
In 2010 is:
p2^= 385/1100= 0.35
Part c:
p^c= 410+385/1000+1100= 0.3785
q^c= 1-p^c= 1-0.3785= 0.6124
The critical region is z > ±1.96
The test statistic is
z= p1^- p2^ / sqrt ( p^cq^c( 1/n1+ 1/n2)
z= 0.41-0.35 /sqrt( 0.3785*0.6124(1/1000 +1/1100)
z= 0.06 / 0.021036
z= 2.85
Conclusion
The calculated z = 2.85 falls in the critical region z > 1.96 so we accept the null hypothesis that there is no difference between the population proportions for the two years.
P- value : 0.00466
The result is significant( accept the null hypothesis) for value less than 0.05
Part d:
2012 2010
Sample 1000 1100
Proportions 0.41 0.35
Standard Error √0.41( 0.59)/1000 √0.35( 0.65)/1100
= 0.0155 0.01438
Standard Error for the difference = √0.0155² + 0.01438² =0.0211
p1-p2 ± z* standard error for the difference
0.41-0.35 ± 1.96 *( 0.0211)
0.06 ± 0.041356
-0.018644, 0.101356
The 95 % confidence interval estimate is (-0.018644, 0.10135
Consider the line 2x-3y=-3.
What is the slope of a line perpendicular to this line?
What is the slope of a line parallel to this line?
Solve for the indicated variable
for x: d=ax+bx
Answer:
d/ ( a+b) = x
Step-by-step explanation:
d=ax+bx
Factor out x
d = x( a+b)
Divide each side by (a+b)
d/ ( a+b) = x (a+b)/ (a+b)
d/ ( a+b) = x
hi everyone i know all the ansers but i wanna help people too 9x8 2x12
On the next test, one of the students score 100 but the remaining 4 students score 50 again. What is the average score on this second test?
Answer:
60
Step-by-step explanation:
50+50+50+50+100= 300
divide by 5 students
300/5 = 60
Answer:
now I can answer correctly! 60 is the average
Step-by-step explanation:
100+50(4) =300
50(4)= 200+100=300
300/5= 60
Si un jarrón tíene 80 cm de altura ¿ cuantos milímetros mida
Si tiene 80 cm de altura mier 800 milímetros de altura
Math will give brainliest
Answer: 312
Step-by-step explanation: i just times it
Answer:
Mutiply 24 and 13
24×13=312
312cm3
Need help can someone plz help me
Answer:
16.67%
Step-by-step explanation:
part: 400
percent: x
whole: 2,400
400=x(2,400)
divide both sides by 2,400 to get .1666
.1666=x
move the decimal inwards two times to make it a percentage, and round up the last didget
16.67%
No answer text provided.
No answer text provided.
HA < CH
HM > CH
AM = CK
MH < HC
Answer:
HM > CH
Step-by-step explanation:
You are correct, I didn't see the option HM > CH, which is correct, since the angle 90 degrees is larger than the angle 73, and then the sides opposite to them must follow suit.
Therefore, the correct answer is: HM > CH
The true statement from the triangles is (b) HM > CH
How to determine which must be trueFrom the question, we have the following parameters that can be used in our computation:
The figures
Next, we have
Angles at corresponding points = 90 degrees and 73 degrees
Since the angle 90 degrees is larger than the angle 73 degrees, and then the sides opposite to them must also have the same relationship
Using the above as a guide, we have the following:
The true statement is (b) HM > CH
Read more about triangles at
https://brainly.com/question/32215211
#SPJ6
It's math,I'll send u a picture!
Answer:
suree.
Step-by-step explanation:
Sarah makes 1/2 pound of caramel popcorn and puts it in a bags that hold 1/8 of a pound which equation can used to find how many bags she can fill
Answer:
1/2 ÷ 1/8 =b
Step-by-step explanation:
Which number line shows the graph of x 11
Answer:
The second one
Step-by-step explanation:
Since the equation is X is greater than or equal to 11, because of the line under it, the "or equal to" it is a closed dot. (If it didn't have that line under it, it would be an open dot.) And, how I like to explain which way the blue arrow goes, the ">" kind of looks like the tip of an arrow, so the blue arrow should go the same way. For example, ">" seems like an arrow going this way "-->", or "<" seems like an arrow going this way "<--"!
Answer:
B, is the correct option.
Step-by-step explanation:
because x is greater than or equal to 11.
in a pack of 24 balloons, 3/4 are blue or green, how many of the balloons are blue or green?
Answer:
3 my answer
Step-by-step explanation:
24 divide 8-3
Sum of the second and third consecutive odd integers, simplified
The graph of the function f is shown. f(5) =
9514 1404 393
Answer:
f(5) = 0
Step-by-step explanation:
At x=5, the graph is on the x-axis, so the function value is 0 at that point.
f(5) = 0
4 3
10 x 2.43 = 10x2++
10 100
100)
Answer:
add my sc = bmic ava, no spaces
or add my discord = XoXo_ava
Step-by-step explanation:
hope i can help bbg / bbb :
) !!!
Pls help I’ll give you branliestttttt
Shani has 2 chocolate bas. One has 60% cacao and the other 92% calco
What mass of each bar must she mix to obtain 400g of chocolate
with 72% cacao
Answer:
250 grams of the 60% cocoa bar and 150 grams of the 92% cocoa bar should be used.
Step-by-step explanation:
Given that Shani has 2 chocolate bars, one that had 60% cocoa and the other that had 92% cocoa, to determine what mass of each bar must she mix to obtain 400g of chocolate with 72% cocoa, the following calculation must be performed:
100 x 0.6 + 0 x 0.92 = 60
90 x 0.6 + 10 x 0.92 = 63.2
80 x 0.6 + 20 x 0.92 = 66.4
70 x 0.6 + 30 x 0.92 = 69.6
65 x 0.6 + 35 x 0.92 = 71.2
63 x 0.6 + 37 x 0.92 = 71.84
62.5 x 0.6 + 37.5 x 0.92 = 72
400 x 0.625 = 250
Thus, 250 grams of the 60% cocoa bar and 150 grams of the 92% cocoa bar should be used.
Plz help! I don’t know how to do these!
4. x= 40
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you .
☺️
Maria has 6 pizza slices and wants to split them among her and 8 other friends. If each person gets the same amount, how much of the pizza slice will each person get?
Answer:
1 if u cut all of them in half
Step-by-step explanation:
9+3+8+100+12+100+12+34+28+
Answer:
306
Step-by-step explanation:
LOL
Answer:
306
Step-by-step explanation:
so 9+3=12+8+100=108+12=120+34=154+28=182 then u add it all together
