Answer: x= y+7 / all over 3
Step-by-step explanation:
y= 3x-7
+7. +7
y+7 =3x
÷3. ÷3
y+7/ 3 = x
please help!! If ED=5, then determine the length of AB
Answer:
AB equals 25
Step-by-step explanation:
1( you take ED and the 5 and say of 5.
2( then you count all the letters that stand for numbers and count them.
3) after you count them how many ever there are then you take that number which was 5 too.
4(after you find that number which is number 5 you multipliy 5 and 5.
5(after you multipliy then you should get 25 because 5x5 is 25.
And there you go thats the answer step by step.
9x81 simplfy in distributive proper
Answer:
the answer is 729.........
Evaluate the expression.
Answer: 13
Step-by-step explanation:
Becca has 115 students. Susana has 8 fewer students than Becca. Erika has 25 more students than Susana. How many students does Susana have? *
Answer:
Susana will have 107 students.
Step-by-step explanation:
Becca have students = 115
Susana has 8 fewer students than Becca.We can write its as:
Becca has 115 students, so Susana will have 115-8 = 107 students
Because fewer means less than so, 8 less than 115 is 115-8
Erika has 25 more students than Susana.We can write it as:
Susana has 107 students, so Erika will have: 107+25 = 132 students.
because more means we need to add 25 students with number of students in Susana class.
So, Susana will have 107 students.
A DVD player is regularly priced at 79.95 and is on sale for 30% off. What is the discount?
Answer:
$2.40 or $77.55
Step-by-step explanation:
I don't know if you are asking for how much off or what, so I'm doing both
First, we have to find how much we have to take off or what is 30% of 79.95 so our equation is:
79.95 x 0.03 = 2.40
So 30% of 79.95 is $2.40
To find how much our new price sale is, we have to take that $2.40 off so our equation is:
79.95 - 2.4 = 77.55
So our discount price is $77.55
hope this helps:)
Which equation shows the zero property of multiplication
A. 4×0=0
B. 9+9+9=3×9
C. 3×6=6×3
D. 5×1=1
Answer:
A. 4×0= 0
Step-by-step explanation:
since it shows that any number you multiply by 0 still gives you 0
• 6 mystery books
5 science books
• 4 history books
3 adventure books
.
Robero will randomly choose 1 book to read. What is the probability that he will
choose an adventure book?
Answer:
Step-by-step explanation:
How many books are there?
6+5+4+3 = 18 books total
How many are adventure books?
3
3 out of 18 books are adventure books
Robero has a 3/18 probability of choosing an adventure book.
Your teacher might want that probability in the lowest possible form. That is because it is the easiest to use and to understand.
You can do this by dividing both numbers by the "numerator" which is the first number in the fraction, (the adventure book count).
3/3 = 1
18/3 = 6
So the fraction can be reduced to 1/6.
Robero has a 1/6 chance of choosing an adventure book.
A rectangular prism has a volume of 30 cubic inches.It's length is 1/3and it's width is 3 feet. What is the height?
V = WHL
30 = [tex]\frac{1}{3}[/tex]*3*L
30 = 1*L
30 = L
Helppppppppp plzzzzz
Answer:
1) 25, 2) 6
Step-by-step explanation:
1 /2 (6k+10)+5k Simplify. Then, justify
Answer:
8k + 5
Step-by-step explanation:
First, you need to distribute the 1/2 to everything in the parentheses.
1/2 x 6k = 3k
1/2 x 10 = 5
The new expression is now:
3k + 5 + 5k
Add like terms.
3k + 5k = 8k
The expression becomes:
8k + 5
A bacteria culture grows with constant relative growth rate. The bacteria count was 1296 after 2 hours and 531441 after 6 hours. Answer the following questions. 1. What is the relative growth rate
Answer:
1)k=1.50408
2)=64
3)P(t)=64e^(1.50408t)
4)=118098
5)t=6.42 hrs
Step-by-step explanation:
CHECK THE COMPLETE QUESTION BELOW
A bacteria culture grows with constant relative growth rate. The bacteria count was 1296 after 2 hours and 531441 after 6 hours. Answer the following questions.
1. What is the relative growth rate?
2. What was the initial size of the culture?
3. Find an expression for the number of bacteria after t hours.
4. Find the number of cells after 5 hours.
5. When will the population reach 1000000?
To find relative growth rate, expression below can be used
P(t)= Po*e^(kt)
Where k= growth rate
Po= initial amount
t= time in hours
We were given The bacteria count as 1296 after 2 hours and 531441 after 6 hours. This can be expressed below as
P(2)= P(o)e^(2k)= 1296.........eqn(1)
P(6)= P(o)e^(6k)= 531441........eqn(2)
If we find the ratio of the two eqn we have
531441/1296 =[P(o)e^(6k)]/[P(o)e^(2k)]
410.0625= e^(4k)
If we take Ln of both side
ln 410.0625=ln(e^4k)
k=1.50408
1)= k=1.50408
2)
From P(2)= Po*e^(2k)= 1296
1296=Po × e^(2×1.50408)
1296= Po × e^(3.00816)
Po=1296/e^(3.00816)
=64
3) the expression is P(t)=64e^(1.50408t)
4). P(5)=64e^(1.50408×5)
=118098
5) P(t)= 1,000,000
1000000=64e^(1.50408t)
1000000/64 = 64e^(1.50408t)
Ln(15625)=ln[e^(1.50408t)]
9.657=e^(1.50408t)
t=6.42 hrs
A hospital wants to survey religious participants in their city about what they seek from a hospital Chaplin, so they randomly select 5 religious meeting in the city and survey
Answer:
c. Cluster random sample
Step-by-step explanation:
Missing word "every participant in those meetings. What type of sample is this? a. Simple random sample, b. Stratified random sample, c. Cluster random sample, d. None of the above"
In the cluster sampling, researchers will divide a certain population into smaller groups which is known as clusters, then, they randomly select among these clusters to form a sample. In cluster sample, the clusters to be included are selected at random and all members of the cluster are included.
Compounding - Solve for Time
Jan 21, 2:12:46 PM
Joseph invested $89,000 in an account paying an interest rate of 6.6% compounded
quarterly. Assuming no deposits or withdrawals are made, how long would it take, to
the nearest tenth of a year, for the value of the account to reach $237,600?
Answer:
t=15
Step-by-step explanation:
Pls help I need a good grade
Answer:
y=4/7x
Step-by-step explanation:
Graph the point (4,7) and (0,0) because x is pint and y is servings
The equation is y=4/7 x because the slope is 4/7 and it starts at the origin.
stephanie invests $3,991 in a retirement account with a fixed annual interest rate of 6% compound continuously. What will the account balance be after 13 years?
Answer:
7103.98
Step-by-step explanation:
1) 3991 × 6% = 239.46 intrest rate of a year
2) 239.46 × 13 = 3112.98 intrest rate of 6% for 13yrs
3) 3991 + 3112.98 = 7103.98 Stephanie account balance after 13 yrs
Determine which regions contain cube roots of -1. Check all that apply.
on real axis
on imaginary axis
quadrant 1
quadrant 2
quadrant 3
quadrant 4
Answer:
A:on real axis C:quadrant 1 F:quadrant 4
Step-by-step explanation:
I took the assignment
Cube roots of -1 lies in the region given in the best options are A. on real axis, B. quadrant 1, F. quadrant 4.
What is cube roots of -1?
Cube roots of -1 mean "finding solution of the equation z³ = -1 since the equation is of order 3, the equation has 3 roots in complex field."
According to the question,
Cube roots of -1 can written as [tex](-1)^\frac{1}{3}[/tex].
Step (1): Write the given number in polar form
x = [tex](cos 0 - i sin 0)^\frac{1}{3}[/tex]
Step (2): Add 2kπ to the argument
x = [tex](cos 2k\pi - i sin 2k\pi )^\frac{1}{3}[/tex]
Step (3): Apply [tex]De[/tex] [tex]Moivre's[/tex] theorem = [tex](cos \alpha + i sin\alpha) = (cos n\alpha + i sin\alpha )[/tex]
x = [tex]\frac{cos2k\pi }{3} - i sin \frac{2k\pi }{3}[/tex]
Step (4): Put k = 0,1,2 .... (n-1) [sin (-θ) = -sin θ, cos(-θ) = cos θ]
The three roots are
cos 0 - [tex]i[/tex] sin 0, cos [tex]\frac{2\pi }{3}[/tex] - [tex]i[/tex] sin [tex]\frac{2\pi }{3}[/tex], cos [tex]\frac{4\pi }{3}[/tex] - [tex]i[/tex] sin [tex]\frac{4\pi }{3}[/tex]
-1, [tex]-\frac{1}{2} - i\frac{\sqrt{3} }{2}[/tex], [tex]\frac{-1}{2} + i \frac{\sqrt{3} }{2}[/tex] are the three roots of cube roots of -1.
Clearly three roots lies in the regions of real axis, quadrant 1 and quadrant 4.
Hence, Cube roots of -1 lies in the region given in the best options are A. on real axis, B. quadrant 1, F. quadrant 4.
Learn more about cube roots of -1 here
https://brainly.com/question/22687916
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Order the following from LEAST to GREATEST 21% , 3/20 , 25.6% , 2.24 , 0.24
Answer:
Step-by-step explanation:
3/20 21% 0.24 25.6% 2.24
1/4+(2x5)
please answer
the table shows the results when the polynomial p(x) is evaluated at x=a for different values of a.
Which mist be a factor of p(x)
x - 4
x + 7
x - 10
x + 12
Answer:
The answer is x-10
Step-by-step explanation:
Just did it
Martha goes to the grocery store to buy oranges . Oranges are on sale for $1.25 per pound . How much would 5 pound of oranges cost
Answer:6.25
Step-by-step explanation:1.25x5=6.25
Answer:
$6.25
Step-by-step explanation:
1.25 × 5 = 6.25
hope this helps...
7. A bag of M&Ms dumped on the table and you court 91 blue pieces Approximately how many
M&ms do you expect to be in the entire bag based on the proportions of the entire class?
Answer:
i would think that there would be at least 100 m&m in the bag
Step-by-step explanation:
i might be wrong a hven't had m&m in about 10 years
A 5k marathon is equivalent to how many miles.? (Conversion factor: 1 mile = 1.6 km)
Answer:
3.10686
Step-by-step explanation:
Divide the kilometer by 1.609
9514 1404 393
Answer:
3 1/8 miles
Step-by-step explanation:
Using your conversion factor ...
(5 km) × (1 mi)/(1.6 km) = (5/1.6) mi = 25/8 mi = 3 1/8 mi
A 5k race is about 3 1/8 miles.
_____
Additional comment
That estimate that is high by 0.584%, or 29.2 meters.
If the scale factor of a figure is 6, what is the new length of the enlarged figure matched to the length of the
orginal?
Answer:
1=6
7=42
2.5=15
5=30
Step-by-step explanation:
Multiply each original value by the scale factor
1×6=6
7×6=42
2.5×6=15 (2×6 + 6×0.5)
5×6=30
Answer:
Original: 5 cm = Enlarged: 30 cm
Original: 7 cm = Enlarged: 42 cm
Original: 2.5 cm = Enlarged: 15 cm
Original: 1 cm = Enlarged: 6 cm
Step-by-step explanation:
Edg Warm-up answer 2021
....................
Answer:
.........................
Step-by-step explanation:
pls answer number 12
Answer:
$1.50
Step-by-step explanation:
When you add $0.29 and $1.23 you get $1.52
then you round $1.52 down to get $1.50 because $1.52 is closer to $1.50 than it it closer to $1.60
QUESTION 7
Solve for x.
(3x + 32)
(5x-8)
O a. 3
b. 12
O c. 20
O d. 19.5
Answer:
The answer is x = 20
Step-by-step explanation:
If you set both equations equal to each other and solve for x, you will get 20.
3x+32 = 5x-8 add 8 to both sides
3x+40 = 5x subtract 3x from both sides
40 = 2x divide by 2 on both sides
20 = x
Write the equation of the line graphed below.
Answer:
a
Step-by-step explanation:
1. Evaluate when y=3. 3y + 2 (2y+6)
33
27
3y+12
Answer:
33
Step-by-step explanation:
3(3) + 2 (2(3)+6)
=9 + 2 (12)
=9 + 24
=33
What is the equation
What do x=
Answer:
Step-by-step explanation:
9x=16
x = 16/9
When Ms. Wilson calls to place her order, the store informs her that the delivery fee has increased by $4, but the price of the topsoil remains the same. Write an equation to represent the new situation. Explain
Answer:
28$ + 4$
Step-by-step explanation: the chart at one yard of top soil was 28$