Today, everything at a store is on sale. The store offers a 15% discount.
The regular price of a T-shirt is $15. What is the discount price? $
Answer: 2.25
Step-by-step explanation: Beause 15x15=225 and then divide 225/100 then you get 2.25 little kid.
help me please in urgent
Answer:
A
Step-by-step explanation:
20 times 10% is 2
If a Robin returns to the bird feeder every 5 days and a Blue Jay returns every 3 days, how many days before they return on the same day?
5 tons, 230 pounds = pounds
Answer:
false
Step-by-step explanation:
Answer:
5230 pounds
Step-by-step explanation:
Complete the proof.
Prove: ARSU ARTU
A)
AAS
B)
AS
SAS
D)
SSS
Find an equation of a polynomial function with real coefficients having zeros 4 and 2+3i.
Answer:
Step-by-step explanation:
A person invested $460 in an account growing at a rate allowing the money to double every 13 years. How much money would be in the account after 28 years, to the nearest dollar?
Answer:
y=2047.05791602
y≈2047
I need help on both, I don’t understand. It’s dealing with similar triangles
Answer:
11. MN = 4 m
12. LK = 8 m
Step-by-step explanation:
11. Apply pythagorean theorem to find MN:
MN = √(5² - 3²) = √(25 - 9) = √16
MN = 4 m
12. Recall: The ratio of the corresponding side lengths of any two given similar triangles are equal.
MN corresponds to LK
MO corresponds to KO
Therefore:
LK/MN = KO/MO
LK/4 = 10/5
LK/4 = 2
Multiply both sides by 4
LK = 2*4
LK = 8 m
Which expression represents the phrase "4 more than the product of 8 and n."
So we're going to debunk this phrase.
4 more means we're adding 4 somewhere. product is the answer to a multiplication problem, so we have to multiply 8 and n. Because n is a variable, we're going to write it as 8n.
So the expression would be 8n+4.
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hope it helps
Write the expression in simplest form.
A cake that costs $32 is on sale for 15% off and there are no taxes. Explain why the expression
(0.85).32 represents the final price of the cake in dollars.
Answer:
$27.2
Step-by-step explanation:
A cake that costs $32 is on sale for 15% off and there are no taxes. Explain why the expression (0.85).32 represents the final price of the cake in dollars.
This is explained in the calculation below
= A cake that costs $32 is on sale for 15% off
The amount off the cake is calculated as
= 15% of $32
= 15/100 × 32
= $4.8
The amount he is paying for the cake =>$32 - $4.8
= $27.2
The above expression is obtained as
(0.85).32
= (100% - 15%) × 32
=( 1 - 0.15) × 32
= 0.85 × 32
= $27.2
The final price of the cake = $27.2
The school bus has 18 rows of seats. There are 4 students in each row. Each student has 3 books to bring home. How many students are on the bus?
Answer:
Step-by-step explanation:
*The part about how many books per student is irrelevant to the question*
All you need to do is multiply 18 rows by 4 students per row.
18 * 4 = 72 total students on bus
Answer:
72
Step-by-step explanation:
18 times 4 equals 72. If there are 4 students in EACH row out of all the 18, then there is 72 kids on the bus.
Evaluate the following expression. plz help
4⋅6÷2
Answer: 12
hope this helps :)
1)
5 in
10 in
5 in
S= 2B - Ph
In the surface area formula shown, B represents the area of the square base, Prepresents the perimeter of the square base and his
the height of the prism. Find the surface area of the prism.
Calc
phing
A)
25 in?
B)
100 in?
C)
250 in?
D)
300 in
me
sini
Answer:
250 in.
Step-by-step explanation:
SA= 2(LW+LH+WH)
= 2(10*5+10*5+5*5)
= 2(50+50+25)
= 2(100+25)
= 2(125)
= 250
Plssss help i give brainliest
Answer:
28
Length=2(x-1)
Width=5
Area=length*width = (2(x-1))(5) = (2x-2)(5) = 10x-10
29
His reasoning is illogical because whether or not an expression has a term that is being subtracted isn't relevant; technically there are an infinite amount of ways to represent a value. Plus you can just compute the expressions and see that they're equal:
6x-2x+4 = 4x+4
4(x-1) = 4x+4
30
The two expressions are equal because when you compute the expression 4(n+3)-(3+n) , you get 3n+9:
4(n+3)-(3+n) = 4n+12-3-n = 3n+9
31
The two expressions are equal because when you compute the expression 2(2n-1), you get 4n-2.
2(2n-1) = (2)(2n)+(2)(-1)=4n-2
32
5(g+14)=(5)(g)+(5)(14)=5g+70
The expressions aren't equal as 5(g+14) equates to 5g+70 and 5g+70≠5g+14.
find the measure of angle A
Answer:
30
Step-by-step explanation:
Right angle = 90 degrees
180-90 = 90, hence the right side of the equation.
x+37+x+67 = 90
2x + 104 = 90
2x = -14
x = -7
Plug in x.
-7+37 = 30 (angle a)
Angle a = 30
Answer:
angle A = 30 degrees
Step-by-step explanation:
*All triangles have an interior angle that adds up to 180 degrees
The triangle is the picture is a right triangle so one of the angles is 90 degrees.
First, we must figure out what "x" is:
⇒ 180 = 90 + x + 37 + x + 67
Combine like terms:
⇒ 180 = 2x + 194
Subtract 231 from both sides:
⇒ 180 - 194 = 2x + 149- 194
⇒ -14 = 2x
The divide both sides by 2:
⇒ [tex]\frac{-14}{2} + \frac{2x}{2}[/tex]
⇒ -7 = x
Now, we can figure out what angle A is by taking the equation "x + 37" and subtituting x by -7:
⇒ x + 37
⇒ -7 + 37
⇒ 30
To check out answers, take all of the eqautions in the picture and subtitute x by -7, (remember that it must add up to 180):
⇒ 90 + x + 37 + x + 67 = 180
⇒ 90 + (-7) + 37 + (-7) + 67 = 180
⇒ 180 = 180
please tell me the answers to 4 and 5 no links
Answer:
4) choice a 30%
5) choice b 62.5%
Step-by-step explanation:
4) 3/10 = 0.30 or 30%
5) 5/8 = 0.625 or 62.5%
$750 at 6% for 18 months
Answer:
$1,560
Step-by-step explanation:
6% of $750 = $45
$45 times 18 = $810
$810 + $750 = $1,560
Solve 51 = n + 17.
Select one:
n = 34
n = 68
n = 3
n = 44
Answer:
n=34
Step-by-step explanation:
Minus 17 on both sides.
Answer:
n = 34
Step-by-step explanation:
34 + 17 = 51
hopefully this helps :)
please answer the question.
f(n) restul impartirii lui n la 3
Answer:
juacho Men aloviukqjjajqjqja
A pizza restaurant, Johnny’s Pizzeria,is selling slices of cheese pizza and pepperoni pizza at the festival.So far today,the restaurant has sold the following:12 slices of cheese pizza,and 24 slices of pepperoni pizza.
One ratio that describes the pizza sales so far at the festival is 2:3
Which relationship below is best represented by ratio 2:3?
A,B,C,D?
Answer:
I'm not very certain but I believe its C, The Number of cheese slices sold compared to the number of pepperoni slices sold
Step-by-step explanation:
Find the volume of the irregular figure 3cm 7 cm 2 cm [?] cm 9 cm 11 cm 7 cm 10 cm
Answer:
672 cm³
Step-by-step explanation:
10x7x9=630
2x3x7=42
630+42=672
Find the measure of angle 3=
Answer: 50°
Step-by-step explanation:
Since angle 3 is in a right triangle we can assume one angle is 90° and then the other missing angle will be 40°
Because you take 180°-140°(the angle next to it) which will equal 40°
Now every triangle must add up to 180°
so lets take the angles we have now
90° +40°=130°
now take that 130°
180°-130°=50°
Now check your work
90°+40°+50°=180°
Angle 3 is 50°
((a^2m+n)(b^n-2m))/((a^n-m)(b^2m-n))
Answer:
SCREEEEEEEEeEEEEeeEEeeEEEEEe
Step-by-step explanation:
42?? I get confused with adding/ multiplying
Answer:108
Step-by-step explanation:
pls help me and give explanation
Answer:
40ft
Step-by-step explanation:
Add up all four sides of your rectangle:
15ft + 15ft +5ft + 5ft = 40ft
You can find the other 5ft (the side that is missing) if you notice that the smaller sections are squares.
The Westbrook Pharmaceutical Company manufactures atorvastatin pills, designed to lower cholesterol levels. Listed below are the amounts (in mg) of atorvastatin in a random sample of the pills. Use a 0.05 significance level to test the claim that the pills come from a population in which the amount of atorvastatin is equal to 25mg.
24.1, 24.4, 24.3, 24.9, 24.1, 26.2, 25.1, 24.7, 24.4, 25.0, 24.7, 25.1, 25.3, 25.5, 25.5
Solution :
Given :
[tex]$\mu = 24$[/tex]
n = 15
[tex]$\overline x = 24.89$[/tex]
s = 0.5902
The hypothesis :
[tex]$H_0 : \mu = 25$[/tex]
[tex]$H_a : \mu \neq 25$[/tex]
This is a 2 tailed test.
The significance level is [tex]$95 \% \ ( \alpha =0.05)$[/tex]
The test statistic :
[tex]$Z=\frac{\overline x - \mu}{\frac{\sigma}{\sqrt n}}$[/tex]
[tex]$Z=\frac{24.89-25}{\frac{0.5902}{\sqrt 15}}$[/tex]
= -0.72
The p value : The p value for Z = -0.72 is 0.4716
The critical value : the critical value at α = 0.05 is +1.96 to -1.96
The decision rule :
If [tex]$Z_{observed} > Z_{critical}$[/tex] or if [tex]$Z_{observed} < -Z_{critical}$[/tex], then reject [tex]$H_0$[/tex].
Also if p value is less than α, then reject [tex]$H_0$[/tex].
The decision :
Since the Z falls in between +1.96 and -1.96, we fail to reject the [tex]$H_0$[/tex]. Also since p value is greater than α, we fail to reject [tex]$H_0$[/tex].
The conclusion :
There is not sufficient evidence at the 95% significance level to warrant rejection of the claim that the pills come from a population in which the amount of the atorvastatin is equal to 25 mg.
Now calculating the mean and the standard deviation :
[tex]$\text{Mean} = \frac{\text{sum of observation}}{\text{total observations}}$[/tex]
Standard deviation = [tex]$\sqrt{\text{variance}}$[/tex]
Variance = [tex]$\frac{\text{sum of squares(SS)}}{n-1}$[/tex]
Where, SS = [tex]$\sum (X - \text{mean})^2$[/tex]
X Mean [tex]$(X-\text{mean})^2$[/tex]
24.1 24.89 0.62
24.4 24.89 0.24
24.3 24.89 0.35
24.9 24.89 0
24.1 24.89 0.62
24.2 24.89 1.72
24.1 24.89 0.04
26.2 24.89 0.04
25.1 24.89 0.24
25 24.89 0.01
24.7 24.89 0.04
25.1 24.89 0.04
25.3 24.89 0.17
25.5 24.89 0.37
25.5 24.89 0.37
n 15
Sum 373.3
Average 24.89
SS 4.8775
Variance = [tex]$\frac{SS}{n-1}$[/tex] 0.348392857
Standard deviation 0.5902
Find the quotient
8,040 / 25
A- 321 R15
B- 301 R15
C- 331 R15
D- 311 R15
Enter the unknown value in the equation.
35.7−□=11.23
Answer:
24.47
Step-by-step explanation:
First, 35.7 - 11.23 = 24.47, which is your answer
Hope this helps!