Answer:
the length is 12 and the width is 9.
Step-by-step explanation:
The first step is always to assign letters to the variables. We can call length L and width W.
Since all units are in cm, unit conversion is unnecessary.
Next, set up some equations. L=2W-6 because of the first sentence of the problem. Length times width equals area, so L*W=108.
Now that there are two equations and two variables, the next step is to solve the system. I'm going to solve it by plugging in the right side of the first equation in for L in the second equation. This gives me (2W-6)*W=108. Distributing the W gives me 2W^2-6W=108, or W^2-3W-54=0. Using the quadratic formula, I get that W=9. Using the first equation, L=2*9-6=12. So the length is 12 and the width is 9.
Un depósito de agua se llena en 5 horas empleando el grifo A, y, en 2 horas empleando el grifo B. Si se emplean ambos grifos simultáneamente. ¿Cuánto se demoran en llenar el depósito de agua?
Answer: Sí papi
Step-by-step explanation:
3/4 +z greater than or equal to -3/4 I’m am looking for what Z equals
Answer:
z is greater than or equal to negative three halves
Step-by-step explanation:
subtract 3/4 from each side then simplify.
17. What is the annual salary for a person who earns a
weekly
salary of $560.00?
Answer:
$29120
Step-by-step explanation:
There are 52 weeks in a year.
52 x 560 = $29120
_____are agents that can cause infection and disease.
The function f(x) = 4x + 10 models the amount of money Francis makes when babysitting for x hours. How much money will he make
for 2 hours of babysitting work?
18
-3
-2
2
Answer:
18
Step-by-step explanation:
You plug in 2 hours as your x value. You get 4(2) + 10 = 18.
The amount of money he will make for 2 hours of babysitting work is 18 dollars.
What is a function?The function is a type of relation, or rule, that maps one input to a specific single output.
We have been given that the function f(x) = 4x + 10 models the amount of money Francis makes when babysitting for x hours.
Plug in 2 hours as x value.
f(x) = 4x + 10
f(2) = 4(2) + 10
f(2) = 8 + 10
f(2) = 18
Hence, he will make 18 dollars for 2 hours of babysitting work
Learn more about function here:
https://brainly.com/question/2253924
#SPJ2
True or false? The graph represents a function
Answer:
False. This is not a function.
Step-by-step explanation:
By using the vertical line test, it shows that this graph is not a function. The imaginary vertical line would go through the graph twice. To be a function, the imaginary vertical line can only go through once.
Factor x^2 -5x - 14 ??
Answer:
=(x-7)(x+2)
Step-by-step explanation:
Answer:
[tex]x {}^{2} - 5x - 14 \\ = x {}^{2} - (7 - 2)x - 14 \\ = x {}^{2} - 7x + 2x - 14 \\ = x(x - 7) + 2(x - 7) \\ = (x - 7)(x + 2)[/tex]
Thank you ☺️☺️
Solve 5x – 2y = 11 for y.
Marla is solving the equation shown below. Two of her friends, Peter and
Uma present equations that they claim are equivalent to Marla's. Which
statement is correct about their equations.
=
Marld's equation :
[(x + 5) + x ] + 8 15
Peter's equation : (x + (5 + x)] + 8
+ 8 = 15
Uma's Equation : (x + 5) + (x + 8]
= 15
Only Peter's equation is equivalent to Marla's
Only Uma's equation is equivalent to Marla's
Both Peter and Uma have written equations that are equivalent to Marla's.
Neither Peter nor Uma's equations are equivalent to Marla's.
Answer:
2(2x +4y) +(3x -y) = 2(10) +(8)
.. 7x +7y = 28
Marla has incorrectly calculated the constant as 12. It should be 28.
Step-by-step explanation:
6 pack of soda costs $2.40. A 12 pack of the same soda costs $5.40. Which is the better deal? Explain your reasoning.
Answer:
The 6 pack
Step-by-step explanation:
I say this mainly because if you buy two 6 packs of soda that will add up to 4 dollars and 8 cents which is cheaper than the 12 pack.
How much would you have to deposit today to have an accumulated amount of $20,000 in 20 years if yearly interest is 4.75% compounded continuously?
Answer: $7734.82
Step-by-step explanation:
You would use the equation F=Pe^rt because the interest is continuous.
What we know:
F= 2000
r= 4.75%
t= 20
Plug in the information to the equation: 2000=Pe^.0475*20.
Because we need P by itself, you would divide the e^rt on both sides so then they cancel out and you get 2000/e^.0475*20 = 7734.820469.
Rounding it to the hundredth place, you’ll get $7734.82
Hope that this helps :)
What does E =mc2 equal
Answer:
E=mc2 ................
E=mc2 is Energy equals mass times the speed of light squared.
Mind-BLOWN lol
The Homerun Hitter’s Academy charges thirty-five dollars per hour for batting lessons, with a registration fee of fifteen dollars per year. Janice’s parents paid $155 in the month of August.
Answer:
h==4
Thank me later :)
Answer:
15+35h=155
h=4
Step-by-step explanation:
Please Help!! I don’t understand this!!
Answer:
d=3
Step-by-step explanation:
so yu do 18+18 and yu get 36 and then you do 43+3 vause that is how muvk the lockers cost
Answer:
$2
Step-by-step explanation:
Fees = $18
Locker fee =$d
Total cost for 2 people,including locker for 2 people
=$40
2($18 + d) = $40
$36 +2d = $40
2d = $4
d = $2
if you want to check
Fees for one people =$18
Two people =$18 × 2 = $36
Total cost for 2 people - locker for 2 people = $40 - $ 2($2) = $40 - $4 = $36
Solve -4 x (- 10.5 )
40.5
14.5
42.4
42
A man has 27 coins in his pocket, all of which are dimes and quarters. If the total value of his change is 525 cents, how many dimes and how many quarters does he have?
Your answer is
number of dimes equals=
number of quarters equals=
17(quarters)
10(dimes)
Step-by-step explanation:Hi there !
dimes = 0.1$ = 10c
quarters = 0.25$ = 25c
d + q = 27 => d = 27 - q
10d + 25q = 525
replace d
10(27 - q) + 25q = 525
270 - 10q + 25q = 525
25q - 10q = 525 - 270
15q = 255
q = 255 : 15
q = 17(quarters)
d = 27 - q
= 27 - 17
d = 10(dimes)
Good luck !
PLS HELP ME! I HAVE NO IDEA HOW TO WORK THIS ;-; will mark brainliest!
What is the sum of 3b(b - 4) and 6 (b – 8)?
A
36(1 – 26 – 16)
B
36(6 – 2 – 16)
3(62
2b - 16)
3(62 – 2 – 166)
Can someone help me with this? I don’t understand this that well.
Thank you.
(P.S, will give Brainliest to whomever gets it correct first.)
Answer: 1, 3, and 5 I think
Step-by-step explanation:
Rational numbers are numbers that can be written as quotients
8th grade math: Mr. Giles has 6 horses; each horse eats about 85 pounds of feed per year.
How many pounds of feed will 6 horses eat in 1 years?
Answer:
510 pounds
Step-by-step explanation:
6x85=510
Which figure is symmetric with respect to a point?
Answer:
B.
Step-by-step explanation:
I just did it on edg
Answer:
B
Step-by-step explanation:
Did it on edge
Q2 - Expected and observed frequencies
It is beleived that a 6-sided dice is biased so that:
If you roll the dice 360 times, what is the expected frequency for each score?
P(1) = 0.1 P(2) = 0.15 P(3)= 0.05 P(4) = 0.2
P(5) = 0.2 P(6) = 0.3
Score | 1 2 3 4 5 6
expect| ***6 boxes are here**
-ed |
frenqu|
-ency |
—————————
In fact the observed frequencies are as follows:
Score 1. 2. 3. 4. 5. 6
Observed. 39 59. 17. 71. 78. 96
frequency
What does this tell you?
1. the model seems reasonable
2. the model is wrong
3. you need to buy a new dice
Answer:
1 and 3. For 1, look below. You really do need to buy new dice.
Step-by-step explanation:
For the sake of simplicity let's turn all these decimals to ratios.
Divide all by 0.05, then let's add the observed frequency on top. Then we can divide the big number by the small one.
2 - 39: 20
3 - 59: 20
1 - 17: 17
4 - 71: 18
4 - 78: 20
6 - 90: 15
It's up to you to decide if the model is reasonable. To me, it is.
If m∠ABC=7x-2 and ∠CDE=5x+16 are congruent, find m∠ABC?
Answer: m∠ABC = 61°
Step-by-step explanation: Since angles are congruent, make the equation
7x-2 = 5x + 16
7x-5x = 16 +2
2x = 19
x = 9
Substitute 9 for x
7(9) -2 = m∠ABC . and 5(9) + 16 = m∠CDE
63-2 = 61° = m∠ABC 45 + 16 = 61 True!
FIRST TO ANSWER GETS BRAINLIEST!
What is the equation and the slope of each of the following lines ?
Answer:
create a graph
Step-by-step explanation:
like this
X Y
-3
0
3
and solve for y
A bike shop has 11 1111 red bikes, 3 33 blue bikes, 4 44 orange bikes, and 12 1212 silver bikes. For every 1 11 orange bike, there are 3 33 _ _ _ _ _ _ _ _ _ _________\_, \_, \_, \_, \_, \_, \_, \_, \_. Choose 1 answer: Choose 1 answer: (Choice A) A Red bikes (Choice B) B Blue bikes (Choice C) C Silver bikes
Answer:
C. Silver bikes
Step-by-step explanation:
Given that:
Number of red bikes at the bike shop = 11
Number of blue bikes at the bike shop = 3
Number of orange bikes at the bike shop = 4
Number of silver bikes at the bike shop = 12
Let us find the ratio of each bike with orange bikes to find the answer.
Orange bikes: Red bikes = 4 : 11
i.e. for every 4 orange bikes, there are 11 red bikes.
Orange bikes: Blue bikes = 4 : 3
i.e. for every 4 orange bikes, there are 3 blue bikes.
Orange bikes: Silver bikes = 4 : 12 = 1 : 3
i.e. for every 1 orange bike, there are 3 silver bikes.
Therefore, the answer is:
C Silver bikes
given the functions
question in attachment
Solve for x.
32 – 8 < 23
OR
4x + 26 > 6
Answer:
32-8< 23
24< 23
4x + 26>6
4X +26> 6 + 26 move the constant to the right
4x =32 divide both sides by 4
x= 8
Step-by-step explanation:
20 POINTS HURRY
What is the value of c in the equation 3/5x=-45
Answer:
x= -1/75
Step-by-step explanation:
Answer:
there is no c
Step-by-step explanation:
What is the goal of solving an equation
Answer:
To get your variable to one side of the equation and a number on the other side to solve your problem.