Answer:
y=1/2
Step-by-step explanation:
7- y + 5y = 9
7+4y=9
4y=2
y=2/4
y=1/2
if you have any questions about how to solve it let me know
19. The wingspan of a ghost bat is 12 more than twice that of a vampire bat.
Suppose a ghost bat has a wingspan of 28 inches. Which equation can be
used to find the wingspan of a vampire bat?
A x + 2 + 12 = 28
C 2x – 12 = 28
B 2x + 12 = 28
D 12x + 2 = 28
Answer:
B. 2x + 12 = 28
Step-by-step explanation:
x is representative of the wingspan of the vampire bat. suppose the ghost bat has a wingspan of 28 inches.
if the wingspan of a ghost bat is 12 more than twice the vampire bat's, then 2x + 12 is the equation used to find the ghost bat's wingspan. we already know the ghost bat's wingspan is 28, therefore the equation is 2x + 12 = 28
В.
1
In the similarity
transformation of AACB
to ADFE, AACB was dilated by
a scale factor of [?], reflected
across the ], and moved
through the translation.
--
-6
13
42
0
1
2
3
1
D
3
A. 2
B. 1/2
C. 3
D. 1/3
no
Answer: look at picture! just did it on acellus, hope this helps!
Step-by-step explanation:
Answer:
factor of 1/3
x-axis
Step-by-step explanation:
Acompact disc box is 11.5 cm long,7 cm wide and 1.5 cm tall. What is the total surface area of a stack of five such compact disc boxes?
Answer:
1,172.5cm²
Step-by-step explanation:
Total surface area of a box = 2(LW + WH + LH)
L is the length = 11.5cm
W is the width = 7cm
H is the height = 1.5cm
Substitute
TSA = 2(11.5(7) + 7(1.5) + (11.5)(1.5))
TSA = 2(80.5+10.5+17.25)
TSA = 2(117.25)
TSA = 234.5cm²
Hence the total surface area of a stack of five such compact disc boxes will be 5(234.5) = 1,172.5cm²
HELP ME PICTURE BELOW 50 POINTS
Answer:
Step-by-step explanation: Hope this helps
The area of a rectangle is 8w +18 square feet. The length of the rectangle is 2 feet. Use factoring to
write an expression to represent the width of the rectangle.
Pls help ASAP
Answer:
The expression that represents the width of the rectangle is 4w + 9
Step-by-step explanation:
The formula of the area of the rectangle is A = length × width
Let us solve the question
∵ The area of a rectangle is 8w + 18 square feet.
∴ A = 8w + 18
∵ The HCF of 8 and 18 is 2
→ Divide each term of the area by 2 to get 2 as a common factor
∵ 8 ÷ 2 = 4 and 18 ÷ 2 = 9
∴ A = 2(4w + 9)
∵ The length of the rectangle is 2 feet
→ Substitute it in the formula of the area above
∵ A = 2 × width
∴ A = 2 width
→ Equate the two right sides of the area
∴ 2 width = 2(4w + 9)
→ Divide both sides by 2
∴ The width = 4w + 9
∴ The expression that represents the width of the rectangle is 4w + 9
Answer:
Give the other guy a brainliest they deserve it :)
Step-by-step explanation:
Please Help me with the last three questions!
It is urgent!
During the spring sale at a store, a sweater was marked down from $50 to $20. By what percent was the sweater decreased?
Group of answer choices
A. 60%
B. 50%
C. 30%
D. 150%
Step-by-step explanation:
Decrease in price = $50 - $20 = $30.
Percent of decrease = ($30/$50) * 100% = 60%. (A)
Based on the original price and the price the sweater decreased to, the percentage discount was 60%.
What was the Percentage Discount?The percentage reduction can be found as:
= (Original price - Discount price) / Original price x 100%
Solving gives:
= (50 - 20) / 50 x 100%
= 60%
In conclusion, the correct answer is option A.
Find out more about percentage reduction at https://brainly.com/question/17220117.
The vertices of a polygon are P(0,4), Q(5,4), R(5,−3) and S(0,−3). What is
the perimeter of the polygon?
Answer:
Perimeter of the polygon p = 24
Step-by-step explanation:
Step(i):-
Given the vertices of a polygon are
P(0,4) ,Q( 5,4) ,R( 5,-3) and S(0,-3)
The distance of PQ
[tex]a = PQ = \sqrt{(4-4)^{2} +(5-0)^{2} } = \sqrt{25} =5[/tex]
The distance of QR
[tex]b = Q R= \sqrt{(-3-4)^{2} +(5-5)^{2} } = \sqrt{49} =7[/tex]
The distance of RS
[tex]c = RS = \sqrt{(0-5)^{2} +(-3+3)^{2} } = \sqrt{25} =5[/tex]
The distance of PS
[tex]d = PS = \sqrt{(0-0)^{2} +(-3-4)^{2} } = \sqrt{49} =7[/tex]
Step(ii):-
Perimeter of the polygon
= sum of all sides of polygon
p = a+ b+ c+ d
p = 5+7+5+7
p = 24
Final answer:-
Perimeter of the polygon p = 24
Is your estimate larger or smaller than the actual number of liters in a gallon? Explain how you know.
Question:
There are 33.8 fluid ounces in a litre. There are 128 fluid ounces in a gallon. About how many litres are in a gallon?
Is your estimate larger or smaller than the actual number of litres in a gallon? Explain how you know
Answer:
It is larger
Step-by-step explanation:
Given
[tex]33.8\ fl\ oz = 1\ litre[/tex]
[tex]128\ fl\ oz = 1\ gallon[/tex]
Required
Estimate number of litres in a gallon
[tex]33.8\ fl\ oz = 1\ litre[/tex]
[tex]128\ fl\ oz = 1\ gallon[/tex]
Cross Multiply
[tex]128\ fl\ oz * 1\ litre = 33.8\ fl\ oz * 1\ gallon[/tex]
[tex]128 * 1\ litre = 33.8* 1\ gallon[/tex]
Divide both sides by 33.8
[tex]\frac{128 * 1\ litre}{33.8} = \frac{33.8* 1\ gallon}{33.8}[/tex]
[tex]\frac{128 * 1\ litre}{33.8} = 1\ gallon[/tex]
[tex]3.78698224852\ litre = 1\ gallon[/tex]
Approximate
[tex]3.787\ litres = 1\ gallon[/tex]
The estimate is larger than the actual litres to gallon conversion because, in standard units of conversion;
[tex]3.785\ litres = 1\ gallon[/tex]
URGENT Why is social distancing so important in stopping the spread of a virus? Simple: exponential growth. Find out how exponential growth works, then do the math to get the key to unlocking lock 4.
link provided below
Answer:
to be safe
Step-by-step explanation:
the further you are the better, because we don't know who have the virus from who don't have it it's better to be 6 feet apart frome each other where ever you go.
Wasim's mom asks him to clean his room every 6 days, and wash his windows every 15 days. If he does them both today, when is the NEXT time he will be cleaning his room and washing his windows on the same day?
Answer:
30 days
Step-by-step explanation:
We solve the above question using Lowest Common Multiple Method.
Find and list multiples of each number until the first common multiple is found. This is the lowest common multiple.
Multiples of 6:
6, 12, 18, 24, 30, 36, 42
Multiples of 15:
15, 30, 45, 60
Therefore,
LCM(6, 15) = 30
Therefore, the NEXT time he will be cleaning his room and washing his windows on the same day is in 30 days time
15,500 for 7.5 years at 4.2% annual compound interest. Find the interest earned:
Answer:
$4882.50
Step-by-step explanation:
First, converting R percent to r a decimal
r = R/100 = 4.2%/100 = 0.042 per year,
then, solving our equation
I = 15500 × 0.042 × 7.5 = 4882.5
I = $ 4,882.50
The simple interest accumulated
on a principal of $ 15,500.00
at a rate of 4.2% per year
for 7.5 years is $ 4,882.50.
Answer:
$5602.78
Step-by-step explanation:
For for compound interest is A = P(1 + r/n)^(nt) where A is the new total, P is the amound invested, t is the number of years, r is the rate of interest and n is the number of times each year the interest is figured. In your problem, P = 15500, r = .042, n = 1. t = 7.5. So, substituting in we get
A = 15500(1+.042/1)^7.5(1)
A = 15500(1.36146...) = 21102.78
Therefore the interest earned is 21102.78-15500 = 5602.78
Factor out the greatest common factor.
14x2 - 4x
Answer:
The greatest common factor of 14x² - 4x is: 2x
Step-by-step explanation:
Given the expression
14x² - 4x
The first step is to factor out the greatest common factor from each term
14x² = 2 · 7 · 14 · x · x
4x = 2 · 4 · x
so
G.C.F = 2 · x
G.C.F = 2x
Therefore, the greatest common factor of 14x² - 4x is: 2x
10 points!!! Please help I’m stuck on this question.
What expression is equivalent to
7m^2 + (2m-1) (m+9)
Answer:
9m^2+17m-9
Step-by-step explanation:
Claudia invests $4000 in an account that compounds continuously at a rate of 3.5%. How much money will he have in her account after 10
years?
Answer:
$5,400
Step-by-step explanation:
First, converting R percent to r a decimal
r = R/100 = 3.5%/100 = 0.035 per year,
then, solving our equation
I = 4000 × 0.035 × 10 = 1400
I = $ 1,400.00
The simple interest accumulated
on a principal of $ 4,000.00
at a rate of 3.5% per year
for 10 years is $ 1,400.00.
Please help...Thank you❤️❤️
Answer:
13.5 square units
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
Answer:
The area of the triangle is 13.5 square units
Step-by-step explanation:
The easiest way to find the area of of a triangle is to find the area of rectangle surrounding it, and divide by two.
In this case, we can use the bottom line and the distance from that to the top point as the side lengths of our "rectangle"
The bottom line has a length of 9, and the distance from that line to the top point is 3. We can say then that the area of the triangle is half of three times nine:
3 × 9 ÷ 2 = 3 × 4.5 = 13.5
So the total area of the triangle is 13.5 square units
a car traveling 100 miles in 2 hours has a unit rate of _miles per hour ?
Answer:
Unit rate of 50 miles per hour.
Step-by-step explanation:
We know that the car can travel 100 miles in 2 hours.
We can divide the 100 miles by how many hours there are to make it "per hour".
Showing you so it makes more sense...
100/2 = 100 ÷ 2
= 50
Double checking because why not...
50 x 2 (hours) = 100
Hope this helped. :)
Find the area of the figure. Use 3.14 for a.
HELP ME PLSS
What is the greatest common factor (GCF) of 72 and 96?
Answer: GCF is 24 ^-^
Answer:
The first step to find the gcf of 72 and 96 is to list the factors of each number. The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 and 72. The factors of 96 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48 and 96. So, the Greatest Common Factor for these numbers is 24 because it divides all them without a remainder. Read more about Common Factors below.
22+b+18=b+22+18 name the property
Answer:
associative
Step-by-step explanation:
-2 - (-4) =
-7- (-14) =
- 12 - (-32) =
Answer:
2
7
20
Step-by-step explanation:
asdf
Answer:
2
7
20
Step-by-step explanation:
-2 - (-4) =
2 negatives = a positive
-2 + 4 = 2
-7- (-14) =
2 negatives = a positive
-7 + 14 = 7
- 12 - (-32) =
2 negatives = a positive
-12 + 32 = 20
Hope this helped!
Have a supercalifragilisticexpalidocious day!
Can anybody help me? I promise to give brainliest to the first and right answer!
Answer:
first one, and the third one
Step-by-step explanation:
Answer:
Options 2 and 3
Step-by-step explanation:
If there are 2 boys and 5 altogether, means there are 3 girls. The ratio of boys to girls would be 2:3.
Look at all the first and second options as fractions to make things simpler. Simplify the fractions and see which ones are equivalent to 2/3
4/10 = 2/5 FALSE
8/12 = 2/3 TRUE
Options 3, 4, and 5 are comparing boys to all students, so whatever matches the ratio 2/5 is true.
10/25 = 2/5 TRUE
20/30 = 2/3 FALSE
9/15 = 3/5 FALSE
Determine the next 3 terms of each of the sequences below
a) -4,-1,2,5,_ ._ ,_
Answer:
8, 11, 14
Step-by-step explanation:
You add 3 to each number
Answer number 3 in the picture pls! I really need the help
help meh for brainlist
Translate the phrase into a variable expression: twice the sum of a number and 5
Answer:
'Twice the sum of a number and 5' can be translated into variable expression such as:
2(n + 5)Step-by-step explanation:
Given the phrase
Twice the sum of a number and 5
First, let us breakdown the English Phrase
Let the number be = n
The sum of a number 'n' and 5 = n + 5
now, twice the sum of a number and 5 can be determined by multiplying (n+5) with 5.
Thus,
'Twice the sum of a number and 5' can be translated into variable expression such as:
2(n + 5)31
Which decimal is equivalent to ?
9
Choose 1 answer:
0.4
в)
0.4444
3.7
3.4444
A store pays $ 95 for the hammock. The store marks the price at 10%. What is the quantity of the mark?
Answer:
$9.50
Step-by-step explanation:
:)
Oceanside Bike Rental Shop charges a 15 dollar fixed fee plus 9 dollars an hour for renting a bike. Melanie paid 60 dollars to rent a bike. How many hours did she pay to have the bike checked out ?
Answer:
5 hours
Step-by-step explanation:
First, you have to subtract the fixed fee of $15 to the total amount that Melanie paid. This has to be subtracted since one has to pay for this every time he/she rents a bike.
$60 - $15 = $45Next, you have to divide $45 by $9/hour in order to know how many hours Melanie rented the bike.
$45 ÷ $9/hour = 5 hoursTherefore, Melanie had the bike checked out for 5 hours.
Answer:
Step-by-step explanation:
$60 cost minus fixed fee of $15 equals $45
$45 divided by $9 equals 5...she had it for 5 hours.
Charlie use 30% of his savings to buy a video game if he had $100 in his savings how much does he have left
Answer:
70 dollars
Step-by-step explanation:
he has only 70%left of his initial savings so that make 70%*100=7*10=70usd
