Answer:
-18y + 7yz - 4z
Step-by-step explanation:
A weather station on the top of a mountain reports that the temperature is currently and has
been falling at a constant rate of per hour. Find each temperature. Explain or show your
reasoning.
What was the temperature?
D. An hour ago?
E. 3 hours ago?
F. 4.5 hours ago?
Answer:
1 hour ago-0*C3
hours ago-(-3*C)
4.5 hours ago- (-9*C
PLEASEEE HELPPPP
I’LL GIVE YOU BRAINLIST I DONT GET THIS :\\
Katie is making chocolate candies for her classmates' Valentine's Day gifts. She melts 12.8 ounces of chocolate and divides it among 40 candy molds. If Katie divided the melted chocolate evenly, how much would each candy weigh?
Answer:
0.32 ounces of chocolate per mold
Step-by-step explanation:
Carlos pays $25 for skis and borrows the remaining amount. The loan payments are $75 every 3 months for 1/1/2 years. The interest rate is 16.2%/a compounded quarterly. What was the selling price of the skis?
Answer:
$417.52
Step-by-step explanation:
Present value of annuity = P * {1-[1/(1+r)^n]/r}
P =Periodic payment i.e. 75
r = rate of interest per period i.e. 16.2% /4 = 4.05% or 0.0405
n =no. of compounding period i.e. 1.50*4 =6
Present value of annuity = Loan amount
Present value of annuity = 75 * {1-[1/(1+0.0405)^6]/0.0405}
Present value of annuity = 75 * {1-[1/(1.0405)^6]/0.0405}
Present value of annuity = 75 * {1-[1/1.268973)/0.0405}
Present value of annuity = 75 * (1-0.78804)/0.0405
Present value of annuity = 75 * (0.21196/0.0405)
Present value of annuity = 75 * 5.23361
Present value of annuity = 392.52
Loan amount = $392.52
Selling price = $392.52 + $25.00
Selling price = $417.52
Thus, the selling price of the skis is $417.52
Priya rode her bike 1250 feet. If her bike wheel has a diameter of 2.5 feet, how many times did her wheel make a full rotation? *
9 points
79 times
159 times
398 times
Answer:
159 timesStep-by-step explanation:
Givend = 2.5 ftDistance = 1250 ftTo findNumber of rotationsSolutionCircumference of the wheel is the one full rotation:
C = πd = 3.14*2.5 = 7.85 ftNumber rotations:
1250/7.85 = 159.2Correct option is 159 times
Oceanside Bike Rental Shop charges 12 dollars plus 6 dollars an hour for renting a bike. Write an expression for the cost of renting bikes for x hours.
Answer:
[tex]y = 12 + 6x[/tex]
Step-by-step explanation:
Given
[tex]Base\ Amount = 12[/tex]
[tex]Additional = 6[/tex] per hour
Required
Determine the expression for the cost in x hours
Represent the cost with y
y is calculated using the following expression
[tex]y = Base\ Amount + Additional * x[/tex]
Where x represent the number of hours.
Substitute values for the base amount of bike and the additional cost per hour
[tex]y = 12 + 6 * x[/tex]
[tex]y = 12 + 6x[/tex]
So, the expression to determine the cost of bike in x hours is: [tex]y = 12 + 6x[/tex]
Factor the GCF: −14y2 + 12y − 22
Answer: The answer is x(x^4+7x^3y^3–8y^4+14y).
Step-by-step explanation:
5,342 divided by 4 *********
Answer:
1335.5
Step-by-step explanation:
Answer:
10/171
Step-by-step explanation:
joseph save 50% of his allowance each week if he saves $25 in 5 weeks how much allowance does joseph receive each week
Answer:
10 dollars
Step-by-step explanation:
Which of the following is the solution to 17 - 2x=-11?
3
-14
14
he
-3
Answer:
17-2x =-11 I got 14
Step-by-step explanation:
Subtract the 17 from the -11 which will be -28 and then divided -28 by -2 and your answer is 14
ILL MARK BRAINLEST IF YOU GIVE ME RIGHT ANSWER!!!! Which of the following is a Pythagorean triple?
A. (3,4,6)
B. (10, 12, 15)
C. (5,5, 10)
D. (6,8,10)
Answer:
C.(5,5,10)
1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, ... 5, 10, 13, 15, 17, 20, 26, 29, 30, 34, 35, ... 25, 50, 75, 100, 150, 169, 175, 200, 225, ...
-22 + 36
adding and subtracting integers
plz help me
Answer:
14
Step-by-step explanation:
Draw a circle of radius 4cm construct a pair of tangents to it the angle between which is 60°
Step-by-step explanation:
i hope its image help youRachel multiplied each side of ≥x greater than or equal to 2 by 3. She wrote the result as ≤3 x less than or equal to 6 . Explain the error Rachel made.
Answer:
Rachel's error is in the inequality sign
Step-by-step explanation:
Given
[tex]x \geq 2[/tex]
Required
Determine the error in Rachel's workings
From the question, we understand that both sides of the inequality were multiplied by 3
i.e.
[tex]3 * x \geq 2 * 3[/tex]
This gives
[tex]3 x \geq 6[/tex]
Comparing this to Rachel's result: [tex]3 x \leq 6[/tex]
We can conclude that Rachel's error is in the inequality sign.
The sign of an inequality will only change is it is being multiplied or divided by a negative number; otherwise, the sign remains unchanged
I WILL MARK BRAINIEST
please tell me what type of angle it is
Answer:
alternate exterior angles
Step-by-step explanation:
Answer: adjacent angles
explanation: both angles share the same side.
-2x + 15 = 7
Show your work steps and solution
Answer:
-2x+15=7
-15
-2x=7
+15
-2x=22
then divide -2 by 22 and you get -11
Step-by-step explanation:
hopefully this is right
Question 19
The smallest number by which 45 should be multiplied so as to get a perfect square is
(1 Point)
3
05
O 7
O2
Answer:
45 * x = 49
x = 49 / 45 = 1.0888888888888...
Step-by-step explanation:
mathematics, Mariana and her juice
Answer:
2350
Step-by-step explanation:
Answer:
2350
Step-by-step explanation:
You just add both of the apple and cranberry juice together then subtract by 1900.
This week is representative of how many hours Ricki will work each week during Summer Break. If she earns $9 per hour and there are 12 weeks in summer vacation, what will Ricki’s gross earnings be? Explain your reasoning. Please answer ASAAAAP
Answer:
The answer would be $18,144.
Step-by-step explanation:
First you have to figure out how many hours are in one week. 168 hours are in one week. The problem is asking us for 12 weeks. You would have to multiply 168 by 12 to see how many hours it would be. 168 times 12 is 2,016. Ricki earns $9 every hour. Next, you would have to multiply the 2,016 by 9 to give you 18,144. I hope this helps.
What is the slope of the line that passes through the points (-4,6) and (-3,2)
Answer: m=4/7x
Step-by-step explanation:
First, you need to use the equation y2-y1/x2-x1
Plug that in and you get 2-6/-3-4
2-6= -4
-3-4=-7
Cancel out the negatives
And the answer is 4/7
draw a line segment of length 8 cm divide it in the ratio 5:3
plzzzz helpppp
Answer:
Draw the line segment AB = 7 cm.
Draw ray BX making an acute ∠ABX.
Along BX. mark off five points B1, B2, B3, B4 and B5. Join B2 to A.
Through B5 draw B5P || B2A, intersecting BA produced at P.
The point P so obtained is the required point which divides AB externally in the ratio 3:5.
WILL GIVE BRAINLIEST IF RIGHT!!! PLS HELP!!!
Answer: The answer is C Have a good day
Step-by-step explanation:
please help i’ll give brainliest
Step-by-step explanation:
maybe 11 I'm not a 100% just trying to help because that's how many full squares it has
En el siguiente esquema se presentan en rojo las diferentes rutas que existen para llegar de una ciudad a otra. Por ejemplo, para llegar de la ciudad B a la ciudad C hay 4 posibles rutas. Si se quiere viajar desde la ciudad A a la ciudad D, ¿por cuántas rutas se podría ir? * A. 14 B. 36 C. 12 D. 24
Answer:
La respuesta es D. 24
Step-by-step explanation:
Falta el esquema. Lo adjunto en la resolución de la pregunta.
En el esquema se puede ver que hay 3 maneras de ir desde la ciudad A a la ciudad B, 4 maneras de ir desde la ciudad B hacia la ciudad C y finalmente 2 maneras de ir desde la ciudad C hacia la ciudad D.
Necesitamos saber por cuántas rutas se podría ir si se desea viajar desde la ciudad A a la ciudad D.
Utilizaremos el principio de multiplicación para responder a ésta pregunta ⇒
Supongamos que estamos realizando un experimento [tex]N[/tex] el cuál está conformado por una serie de sub - experimentos [tex]m_{1},m_{2},...,m_{n}[/tex].
Ahora, cada uno de estos sub - experimentos se puede desarrollar de [tex]n_{1},n_{2},...,n_{n}[/tex] maneras diferentes respectivamente. Entonces, el número total de maneras diferentes en las que el experimento [tex]N[/tex] se puede llevar a cabo se calcula como [tex]n_{1}[/tex] x [tex]n_{2}[/tex] x . . . x [tex]n_{n}[/tex]
Ahora bien, siguiendo con ésta idea escribimos :
3 x 4 x 2 = 24
''3'' porque es el número de rutas distintas para ir de A hacia B
''4'' porque es el número de rutas distintas para ir de B hacia C
Y finalmente ''2'' porque es el número de rutas para ir desde C hacia D
Si hacemos éste producto el resultado es 24 y por lo tanto la opción correcta es D. 24
I thought of a two-digit number. The unit digit of my number is a prime number, and the tens digit is four times as big as the unit digit. What is my number?
Please help! I'm very bad at these "what's my number" problems, so please respond ASAYC! (as soon as you can)
====================================================
Explanation:
Let A be the tens digit and B be the units digit
We can write the number as AB. So if A = 9 and B = 2 for instance, then the number is AB = 92. Keep in mind I'm not multiplying A and B here.
"The unit digit is a prime" means B could be any of these values {2,3,5,7}. We only list the single digit primes. The value 1 is not prime.
Now multiply each of those items by 4
4*2 = 8
4*3 = 12
4*5 = 20
4*7 = 28
Of those results, only 4*2 = 8 leads to a single digit answer.
This must mean that A = 8 and B = 2
Therefore the number is AB = 82.
-30 + (-10) + 12
Answer:
-25
-28
23
please help find the top angle
Answer:
130 degrees
Step-by-step explanation:
So u can see those little lines on two of the sides of the triangle, it means that it's congruent also meaning the same length, and if u didn't, the angles had to be the same in order for the sides to be the same length. So the other missing angle degree is also 25 degrees. A triangle is 180 degrees, so with this info:
25 + 25 + 4x + 2 = 180
4x + 52 = 180
4x = 128
x = 32, now we have x so replace the x in the equation with 32
4(32) + 2
128 + 2
130
FOR A TEST PLS HELP!
A circle has a circumference of 21.98m. What is the diameter?
Which of the following completes the rule for this translation, (x, y) → (x − 8, ___)?
Answer:
y + 3
Step-by-step explanation:
Just took test :)
Answer:y+3
Step-by-step explanation:took a test
i need help what is w-8=32
Answer:
w=40
Step-by-step explanation:
w=40 because when you subtract 40-8 the sum is 32 so W=40
w-8=32
------------------------------------------------------------------------------------------------------
add 8 to -8, and 32.
8 and -8 will cancel out. 32 and 8 will increase though. So, it should be:
w=40