Step-by-step explanation:
Michael's Journey Time = 4 hours and 30 mins
=
[tex]4.5hours[/tex]
Speed = Distance ÷ Time
Given Distance = 108km
Time = 4.5 hours
Speed =
[tex] \frac{distance}{time} \\ = \frac{108}{4.5} \\ = 24 \frac{km}{h} [/tex]
My bad the answer is
Answer: 24 kilometers per hour
PLEASE HELP!!
13. Every Friday, milkshakes are on sale at The Ice Cream Shoppe with a 15% discount.
13a) The regular price of a milk shake is $4. What is the discount price?
13b) If the regular price of a shake is X dollars, what is the discount price in dollars?
13c) On your birthday, the discount price of an ice cream cake is $22. What is the regular price?
(*I really need help on this T^T*)
Answer:
13a) $3.40
13b) 0.85X
13c) $25.88
Step-by-step explanation:
13a) When there is a 15% discount, we can say that we are only paying 85% of the original price because out of 100%, 15% is taken away. 85% in decimals is 85/100 = 0.85.
$4 x 0.85 is the discounted price, which is $3.40
13b) In 13a, the price was 4. Now, the price is X. Hence we plug in (substitute) X in for 4, giving us X x 0.85, which we can write as 0.85X
13c) 85% of the cake is $22. To find 100% of the price, we can find 1% of the original price and then multiply that by 100, which gives us 100% of the price.
We know 85% of the original price. Therefore, dividng the price by 85 will give us 1% of the price. 1% = $22/85
Finally, to calculate 100%, we multiply by 100.
22/88 x 100 = 440/17 which is 25.882 in decimals, which we round to 2 decimal places (because it is currency) = $25.88
Amy and Jenny shared a pizza. Amy ate 1/8th of the pizza and jenny consumed 3/8th of it. What fraction of the pizza did the girls eat in total?
Answer:
In total they ate 4/8 of the pizza. Meaning that together they ate 1/2 of the pizza.
Step-by-step explanation:
1/8 plus 3/8 equals 4/8 which is equal to 1/2.
Helpppppp please mmmmmmm
Step-by-step explanation:
Please type or post your question....
hope you might understood
Consider the function f(x)=x^2
What effect does adding 2 to the input have on the graph of the function?
(a) shifts the graph right 2
(b) shifts the graph up 2
(c) shifts the graph down 2
(d) compresses the graph horizontally by 2
(e) stretches the graph vertically by 2
(f) shifts the graph left 2
Answer:
b
Step-by-step explanation:
if the 2 is like this (x+2) it would move to the left but if its like this x+2 it would move up
can someone find the surface area for this?
Answer: the triangles should be 203.391 and the rectangle is 74.4 so in total it would be 481.182
Step-by-step explanation:
please help me with 5
Answer:
JL = 38
Step-by-step explanation:
Since JK ≅ KL , then Δ JKL is isosceles and KM is a perpendicular bisector, so
JM = ML , that is
14x - 9 = 8x + 3 ( subtract 8x from both sides )
6x - 9 = 3 ( add 9 to both sides )
6x = 12 ( divide both sides by 6 )
x = 2
Then
JL = 14x - 9 + 8x + 3 = 22x - 6 = 22(2) - 6 = 44 - 6 = 38
help asap pls, thank u
Answer:
1243.4 [tex]cm^{3}[/tex]
Step-by-step explanation:
hasil dari 64^5/6 + 27^2/3 - 81^3/4 adalah
tolong bantuannya kakak kakak
Answer:
14
Step-by-step explanation:
Given the indicinal expression 64^5/6 + 27^2/3 - 81^3/4
According to indices;
[tex]a^{m/n} = (\sqrt[n]{a}) ^m[/tex]
Applying this to the question
[tex]64^{5/6} \\= (\sqrt[6]{64}) ^5\\= 2^5= 32[/tex]
Similarly
[tex]27^{2/3}\\= (\sqrt[3]{27}) ^2\\= 3^2\\= 9\\[/tex]
Also;
[tex]81^{3/4}\\= (\sqrt[4]{81}) ^3\\= 3^3\\= 27[/tex]
Substitute inti the original equation
64^5/6 + 27^2/3 - 81^3/4
= 32 + 9- 27
= 41 - 27
= 14
Hence the required answer is 14
Write √7 using rational exponents
Answer:
[tex]7^{\frac{1}{2} }[/tex]
Step-by-step explanation:
rewritten using rational exponents
A un grupo de estudiantes se les preguntó -"¿Cuántas horas de televisión vieron la semana pasada?" Aquí están sus respuestas: 17, 10, 18, 18, 12, 16 Hallar la mediana y la media de las horas de estos estudiantes. Si es necesario, redondear las respuestas a la décima más cercana.
Answer:
15.2
mediana=
Step-by-step explanation:
17+10+18+18+12+16=91
91/6 (6 son las respuestas)
mediana= 15.2
10, 12, 16, (16.5) 17, 18, 18
media= literalmente en Medio de los numeros,
16.5
Nieves y Ana juegan tres partidas partidas. Nieves tenía 10 cromos y Ana 80. En la primera partida ganó Nieves y elevó sus cromos al cuadrado, en la segunda perdió el cubo de 3, y en la tercera perdió el cuadrado de 4. ¿Cuántos cromos les quedan a Ana y a Nieves?¿Quién ha ganado?
Answer:
A Nieves le quedan 57 cromos y a Ana 33.
Nieves ha ganado 47 cromos
Step-by-step explanation:
Para la primera partida, el cuadrado de los cromos de Nieves es de 100.
El cubo de 3 es 27. Nieves queda con 100-27 = 73 cromos
El cuadrado de 4 es 16. Nieves queda con 73-16 = 57 cromos
A Nieves le quedan 57 cromos
A Ana 90-57 = 33 cromos
Así, Nieves ha ganado 57-10 = 47 cromos
a new computer costs 950$ but it depreciates in value by about 14% each year.At this rate,how much will it be worth in 6 years?
Step-by-step explanation:
950x14= 13 300
13300/100
133$ per year
133x6years= 798$
so 950-798= 152
152$ will be the price of the pc at this rate you said
Susan buys the items listed below at a grocery store.
2 packages of chicken priced at $12.36 per package
1 halfpound of broccoli priced at $1.98 per pound
1 gallon of milk priced at $3.49 per gallon
There is no sales tax on the food she buys. Susan pays for the item and receives $0.80 in change. What amount of money does Susan use to pay for the items?
please show your work.free 31 points
Answer:
Susan should get a loan and jjustpay without stressing herself and calculaitingthis
Step-by-step explanation:
The Statue of Liberty is about 300 feet tall and about 30 feet wide. The town of Unionville is building a smaller model for their Fourth of July celebration. Unionville's statue will be 3 feet wide.
Answer:
Step-by-step explanation:
The width of the actual statue is 30 feet and that of the model is 3 ft. What is the scale? 3 ft divided by 30 ft is 1/10.
The smaller model will be 1/10 the size of the actual Statue of Liberty.
Answer:
Solution :-Tall : Width
300 : 30
x : 3
By cross multiplication
3(300) = 30(x)
900 = 30x
900/30 = x
30 = x
[tex] \\ [/tex]
Which of the following describes the graph of
f(x) = x2 – 5x + 6?
A.The graph opens downward and has
x-intercepts at (2,0) and (3,0).
B.The graph opens downward and has
x-intercepts at (-2,0) and (-3,0).
C.The graph opens upward and has
x-intercepts at (2,0) and (3,0).
D.The graph opens upward and has
x-intercepts at (-2,0) and (-3,0).
Answer:
C
Step-by-step explanation:
x=2and3 y is 0
leading coefficient is positive so open upward
Jesse ran 2⁄4 of a mile on Monday, 2⁄3 of a mile on Tuesday, and 2⁄8 of a mile on Wednesday. Which list orders the fractions from least to greatest?
Answer: 2/8, 2/3, 2/4
Step-by-step explanation:
Stacy made 3 of her car payments late and was fined 3 late fees. The total change to her savings from late fees was - $24. How much was each late fee?
Answer:
$8
Step-by-step explanation:
I got my answer of $8 because I knew that the total amount of money she was charged for late fees was $24, and she was charged for 3 late fees. Then, I did $24 divided by 3 late fees and got $8 per late fee as my answer.
24 divided by 3 equals 8.
Solve for c when,
[tex]7c = 28[/tex]
Answer:
c = 4
Step-by-step explanation:
hope this helps
what are all possible values for x in the equation x^3=375?
can you please solve this step by step?
will give brainliest
Answer:
[tex]x=5\sqrt[3]{3}[/tex] or 7.21
Step-by-step explanation:
x³ = 375
You have to take the square root and have the index 3:
You have to have the index 3 because x is cubed and you have to get rid of the cubed sign since a normal square root is for when the exponent is 2:
[tex]\sqrt[3]{x^3} =\sqrt[3]{375} \\x=5\sqrt[3]{3}[/tex]
In decimal form (rounded to hundredths):
7.21
3 – 9 + 4 =
3 – 9 + 4 =
3 – 9 + 4 =
Answer:
[tex]3 - 9 + 4 = 7 - 9 = - 2[/tex]
Hope it helps
Answer:
-2 is the answer
Step-by-step explanation:
3 - 9 + 4 = 7 - 9 = -2
which is not equivalent to 24y-12
Answer:
what are the answer choices
Step-by-step explanation:
The linear expression 24y - 12 is not equivalent to the expression 2(12y - 12) option (A) 2(12y - 12) is correct.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
The question is incomplete.
The complete question is in the picture, please refer to the attached picture.
We have a linear expression:
= 24y - 12
From the above linear expression take 2 as a common factor:
= 2(12y - 6)
Take 2 as common factor again:
= 2(2)(6y - 3)
= 4(6y - 3)
Now, take 3 as a common factors:
= 12(2y - 1)
The expression 24y - 12 is equivalent to the expressions 2(12y - 6), 4(6y - 3), and 12(2y - 1).
Thus, the linear expression 24y - 12 is not equivalent to the expression 2(12y - 12) option (A) 2(12y - 12) is correct.
Learn more about the expression here:
brainly.com/question/14083225
#SPJ2
Let f (x) = -1/2(x + 2)+ 5
-3 to x=1?
What is the average rate of change for the quadratic function from x=-3 to x=1
Answer:
Rate of change = -1
Step-by-step explanation:
Given:
f(x) = -½(x + 2)² + 5
Required:
Average rate of change from x = -3 to x = 1
Solution:
Rate of change = [tex] \frac{f(b) - f(a)}{b - a} [/tex]
Where,
a = -3,
f(a) = f(-3) = -½(-3 + 2)² + 5 = -½(-1)² + 5 = 4.5
b = 1,
f(b) = f(1) = -½(1 + 2)² + 5 = -½(9) + 5 = 0.5
Plug in the values into the formula:
Rate of change = [tex] \frac{0.5 - 4.5}{1 - (-3)} [/tex]
Rate of change = [tex] \frac{-4}{4} [/tex]
Rate of change = -1
A campus courtyard is in the shape of a rectangle and consists of grass surrounded by a concrete path. The dimensions of the
entire courtyard are 25 ft. by 20 ft. The concrete path is 3 feet wide all the way around. The school decides to replace the
grassy area. A landscaping company charges $.20 per square foot for grass and $.60 per square foot to install it.
Approximately how much would the school save if the math club volunteered to install it instead of having the landscape
company install it?
Answer:
I think they'd be saving approximately $300
Step-by-step explanation:
25 times 20 is 500. 500 times .6 is 300 bucks.
There are 90 girls and 60 boys in sixth grade at a middle school. Of these students, 9 girls and 3 boys write left-handed. What percentage of the sixth graders write left-handed.
10%
8%
5%
15%
Answer:
8% of the kids are left-handed. I used 12/150 to yield 0.08 which equals 8%
PLS HELP I PROMISE ILL GIVE U BRAINLEST
5:15pm was the start time.
7th grade math help me pleaseeee
Answer:
1) 40
2) -11
Step-by-step explanation:
1.
5(3)+3(5)+2(3)+4
15+15+6+4
30+10 = 40
2.
6(3)-7(5)+2(3)
18-35+6
-17+6 = -11
The label on a bottle of Juice X-Treme states that the bottle contains 15% real fruit juice. How is this percent of real fruit juice written as a decimal?
Answer:
0.15
Step-by-step explanation:
to convert to decimal, divide 15 by 100
15/100 = 0.15
If it takes Joshua 34 minutes to complete her homework assignment for 10 problems write the two variable line equation that represent Joshua constant rate of work
Answer:
y = 3.4x
Step-by-step explanation:
34 minutes to 10 problems is a ratio of 3.4 minutes to 1 problem.
The ratio of minutes to problems is the constant of proportionality.
y = kx
y = 3.4x
Answer: y = 3.4x
HELP ASAP PLEASE!!!!!!!!
Answer:
2/3
Step-by-step explanation:
The graph of quadratic function f(x) has a minimum at (-2,- 3 and passes through the point (2, 13). The functio
g(x) is represented by the equation g(x)= -(x+2)(x-3)
How much greater is the y-intercept of g(x) than f(x)?
Answer:
Step-by-step explanation:
hello :
the vertex -form of quadratic function f(x) is : f(x) = a(x+b)²+c
the vertex : (- b , c )
means : (-2,-3) so : -b = -2 and c = - 3 so : b =2 and c = -3
f(x) = a(x+2)²-3
calculate : a
the graph passes through the point (2, 13) : f(2)=13
means : a(2+2)²-3 = 13
16a - = 13
16a = 16 so : a = 1
f(x) is represented by the equation f(x) = (x+2)²-3
The graph of f(x) color red and g(x) blue
is the y-intercept when g(x) greater g(x) than f(x) is when x=0 so : y = 6