Answer:
51.35 mph to the nearest hundredth.
Step-by-step explanation:
The time she takes to travel 60 miles = distance / average speed
= 60/50 = 1.2 hours.
Total time taken = 1.2 + 2.5
= 3.7 hours.
Total distance travelled = 60 + 130
= 190 miles.
Therefore average speed for the whole journey
= 190 / 3.7
= 51.35135 mph.
find the value of (4/25)^-1/2
Hey there! Here's your answer:
2/5 Or 0.4 Or 40%
Here's an explanation:
(4/25)^1/2 =
√(4/25) =
2/5
Let f(x) = x2 − 81. Find f−1(x)
the answer is in this picture.
Is 0.56 greater or less than 4/5
Answer:
0.56 is less than 4/5
Step-by-step explanation:
Could I get brainliest please?
Answer:
Step-by-step explanation:4/5 is greater you can use a calculator
The number of coins in two piles are in the ratio of 3 : 8.
The coins in the first pile are 50ps.
The coins in the second pile are 20ps.
There is £4.50 in the first pile.
How much is there in the second pile?
Answer:
plz mark me as brainliest ❤️
12 coins are there in the second pile, when number of coins in two piles are in the ratio of 3 : 8 and the coins in the first pile are 50ps and coins in the second pile are 20ps.
The number of coins in two piles are in the ratio of 3 : 8.
The coins in the first pile are 50ps
The coins in the second pile are 20ps
There is £4.50 in the first pile.
We need to how much in the second pile
What is ratio?A relationship between two things when it is expressed in amounts is called ratio
By Given data,
The number of coins in two piles are in the ratio of 3 : 8.
The coins in the first pile are 50ps
The coins in the second pile are 20ps
There is £4.50 in the first pile.
We need to find how much in the second pile.
(4.5*8)/3
Calculate the product and divide it by 3
36/3
The division of 36/3 is 12.
So if there is £4.50 in the first pile. then 12 are there in the second pile
To learn more on Ratios click here: https://brainly.com/question/18956877
#SPJ2
vertex form of y=-2x^2+16x-24
Help please ill give you brainlest
Is this correct??
Use the equation below to find y, if m=4, x= 9, and b = -1.
y=mx+b
35
Step-by-step explanation:
Here,
m=4
x=9
b= -1
Now to find : y=mx+b
Let's substitute the value,
y=mx+b
=4×9+(-1)
=36-1
=35
A map has a scale of 1 Inch to 64 miles. If the distance from Sacramento to Santa Cruz is 2.3 Inches long on the map, what is the actual distance in miles? (Round to the nearest mile)
A 28 miles
B 66 miles
C 147 miles
D 128 miles
Answer:
C
Step-by-step explanation:
I think this could be it since u have to multiple
64x2.3 Which would be 147.2 but then round up would get u 147
what product is less then 5/8
in order for the product to be less then 5/8, it would have to be multiplied by a fraction that is less then 1.
so ur answer would be : 7/10 x 5/8
What is the answer.
Answer:
[tex]x^{4}[/tex] + 4x³ - 3x² - 6x - 1
Step-by-step explanation:
By subtracting x³ - 3x² + x - 1 , that is
[tex]x^{4}[/tex] + 5x³ - 6x² - 5x - 2 - (x³ - 3x² + x - 1) ← distribute by - 1
= [tex]x^{4}[/tex] + 5x³ - 6x² - 5x - 2 - x³ + 3x² - x + 1 ← collect like terms
= [tex]x^{4}[/tex] + 4x³ - 3x² - 6x - 1
Step-by-step explanation:
x⁴ + 5x³ - 6x² - 5x - 2
should become
x³ - 3x² + x -1
so, what do I need to subtract from the top terms to get the bottom terms ?
because we can only look from one x- term to the next. we can only combine them, when they have the same x exponent.
so, we see there is no x⁴ in the desired result.
therefore, we know as a first item that x⁴ had to be subtracted.
the next x exponent is 3.
we have 5x³ on the top, and x³ on the bottom.
so, clearly, we need to subtract 4x³ as second term.
the next x exponent is 2.
we have -6x² on the top, and -3x² on the bottom.
so, we should actually add 3x². and how do we do this in a subtraction ? by subtracting a negative value, which actual adds it.
so, we need to subtract -3x² as third term.
the next x exponent is 1 (just x).
we have -5x on the top and x on the bottom.
so, the same trick as before, as we need to add something.
so, we need to subtract -6x as fourth term.
and finally, the x exponent 0, which just shows the constant numbers.
we have -2 on the top and -1 on the bottom.
again the same trick to actually add 1.
we need to subtract -1 as fifth term.
so, in total, this is what we need to subtract from the top line to get the bottom line :
x⁴ + 4x³ - 3x² - 6x - 1
Solve the inequality. Show your work.
-5/2(3x+4)<6-3x
Answer: x>−32/9
Step-by-step explanation: -5/2(3x+4)<6-3x −15/2x−10+3x<−3x+6+3x −9/2x−10+10<6+10 (−9/2x)(2/-9)>16(2/-9) -18/-18>32/-9 1x/1>32/-9/1 x>−32/9
What are the coordinates of the midpoint at (-3,9) and (10,18)
Answer:
(7/2, 27/2) or (3.5, 13.5)
Step-by-step explanation:
The x-coordinate of the midpoint is the average of the x-coordinates of the endpoints.
The y-coordinate of the midpoint is the average of the y-coordinates of the endpoints.
x-coordinate of the midpoint:
(-3 + 10)/2 = 7/2
y-coordinate of the midpoint:
(9 + 8)/2 = 27/2
Answer: (7/2, 27/2) or (3.5, 13.5)
Allchong
8. When the sun's rays are at an angle of 39, the distance from the top of Dakota's head to the tip of her shadow is 77 inches. About how tall is Dako
Round your answer to the nearest Inch if necessary.
39
77 in
8 of
Answer Let me ask my brother
Step-by-step explanation:he would know
x= -6, Y= 9 and z = -2 evaluate the expression. -5 x Y - (X^4)/ Y-2z
Answer:
418
Step-by-step explanation:
please make me brainlist
I need help please!!
A B C or D??
Wesley office had already recycled 37 kilograms this year before starting a new recycling plan, and the new plan will have the office recycling 1 kilogram of paper each week,after 13 weeks how many kilograms of paper will wesleys office have recycled
Answer:
37 kilograms alr recycled this year
Plan:
1 kilogram each week
After 13 weeks he would of recycled 13 kilograms
37+13=50
In total his office wesley's have recycled 50 kilograms of paper
Hope this helps
please help meeeee..... you already know that ill mark brainliest.
Hello :D
To work this out you need to add everything up.
3 + 6.3 = 9.3
9.3 + 4.5 = 13.8
18.6 - 13.8 = 4.8
N = 4.8
square root of negative radical
Answer:
Is negative -3 by 4
Step-by-step explanation:
mark me brainliest ❤❤
Answer:
The square root of a negative number does not exist among the set of Real Numbers. ... The imaginary number "i" is the square root of negative one. An imaginary number possesses the unique property that when squared, the result is negative.
HOPE THIS HELPS YOU......1 + 2 + (-5) + 4
A . -6
B . -5
C . 0
D . 2
E . 4
F . 12
Answer:
Option D. 2
Step-by-step explanation:
1+2+(-5)+4
= 1+2-5+4
= 1+2+4-5
= 7-5
= 2
Given 3(x-2)=6, then x is equal to:
Select one:
A.5
b.4
c. 2
d.6
Answer:
[tex]\boxed {\boxed {\sf B. \ 4}}[/tex]
Step-by-step explanation:
We are given the following equation.
[tex]3(x-2)=6[/tex]
We are solving for x, so we must isolate the variable using the inverse operation.
(x-2) is being multiplied by 3. The inverse operation of multiplication is division, so we divide both sides of the equation by 3.
[tex]\frac {3(x-2)}{3}= \frac{6}{3}[/tex]
[tex](x-2)= \frac{6}{3}[/tex]
[tex](x-2)= 2[/tex]
2 is being subtracted from x. The inverse operation of subtraction is addition, so we add 2 to both sides of the equation.
[tex](x-2)+2= 2+2[/tex]
[tex]x=2+2[/tex]
[tex]x=4[/tex]
Check the answer by plugging 4 in for x in the original equation.
[tex]3(x-2)= 6[/tex]
[tex]3(4-2)= 6[/tex]
[tex]3(2)= 6[/tex]
[tex]6=6[/tex]
This checks out, so we know our answer is correct. x is equal to 4 and choice B is correct.
3) Determine the following values given f(x) = 1.
a) f(1/2)
Answer:
f(1/2) = 1
Step-by-step explanation:
2(3+m) AS A WORD PROBLEM!!!! :)
Answer:
twice the sum of a number and 3
Step-by-step explanation:
twice would be best represented for the 2 in 2(3 + m)
and the sum of a number is m and is being added by 3 so we call it the sum of a number and 3
A baker has 3/4 cup of sprinkles to spread on cupcakes. Each cupcake needs 1/8 cup of sprinkles. Complete Part A and Part B (Show your work)
Answer:
6 cupcakes
Step-by-step explanation:
3/4 divided by 1/8
3/4 x 8/1 = 24/4 = 6
Answer:
Step-by-step explanation:
Kimmie wants to earn money by baking and selling cookies. She works up a business plan and finds her cost and revenue functions whose graphs are shown above in green and red, respectively.
A). How many cookies must be produced and sold to break even?
B). What is the dollar amount coming in and going out if Kimmie just breaks even?
C).Use the formulas to write Kimmie's profit function, P(x), from producing and selling x cookies. (NOTE: Profit = Revenue - Cost)
D). How much profit will Kimmie earn if she produces and sells 520 cookies?
Using profit/cost/revenue concepts, it is found that:
a) 400 cookies must be produced and sold to break even.b) The dollar amount coming in and going out is $400.c) The profit function is [tex]P(x) = 2x - 800[/tex]d) Kimmie will earn a profit of $240.----------------------
The revenue function, that is, how much Kimmie earns selling x cookies, is given by: [tex]R(x) = 5x[/tex]The cost function, that is, the cost of producing x cookies, is given by: [tex]C(x) = 800 + 3x[/tex]----------------------
Question a:
The break even point is the value of x for which the revenue is the same as the cost, that is:
[tex]R(x) = C(x)[/tex]
Thus
[tex]5x = 800 + 3x[/tex]
[tex]2x = 800[/tex]
[tex]x = \frac{800}{2}[/tex]
[tex]x = 400[/tex]
400 cookies must be produced and sold to break even.
----------------------
Question b:
The dollar amount is [tex]R(400)[/tex].
[tex]R(400) = 5(400) = 200[/tex]
The dollar amount coming in and going out is $400.
----------------------
Question c:
Profit is revenue subtracted by cost, thus:
[tex]P(x) = R(x) - C(x)[/tex]
[tex]P(x) = 5x - (800 + 3x)[/tex]
[tex]P(x) = 5x - 800 - 3x[/tex]
[tex]P(x) = 2x - 800[/tex]
The profit function is [tex]P(x) = 2x - 800[/tex]
----------------------
Question d:
The profit earned is P(520), thus:
[tex]P(520) = 2(520) - 800 = 240[/tex]
Kimmie will earn a profit of $240.
A similar problem is given at https://brainly.com/question/24373628
Daniel mixed 6 tablespoons of chocolate syrup with 2 pints of milk to make 1 point
chocolate milk. The tape diagram below shows the relationship between
the tablespoons of chocolate syrup and pints of milk used in the chocolate
milk. Use the tape diagram to determine the correct ratio.
Answer:
I'm pretty sure it is the third one
Step-by-step explanation:
Answer:
2:1 or 2 to 1
Step-by-step explanation:
3.8 repeating as a fraction or mixed number in simplist form
Select the correct answer.
What is the value of g(-4) ?
Answer:
1
Step-by-step explanation:
We use the top formula since x = -4
g(-4) = [tex]\sqrt[3]{-4+5}[/tex]
g(-4) = [tex]\sqrt[3]{1}[/tex]
g(-4) =1
ax+by=c
с.
a
What is the value of x?
Answer:
[tex]ax + by = c \\ ax = c - by \\ { \boxed{ \boxed{x = \frac{c - by}{a} }}}[/tex]
is 9.373 a repeating decimal? is it rational?
Answer:
Rational
Step-by-step explanation:
A new popular midsize car has a retail price of $25,000. The midsize car's value M(t) is given by the exponential model M(t)= 25,000 (4/5)^t where t represents the time in years. Identify the domain, in yearly intervals, that contains all the years the car's value is less than $1,000.
[13, ∞)
[14, ∞)
[15, ∞)
[16, ∞)
Answer:
Its C
Step-by-step explanation:
Just got it right on the homework.
