Answer:
8 hours
Step-by-step explanation:
Number of pages read in 1hour = 403 / 13 = 31 pages
Time taken to read 248 page book = 31 x 8 = 248
It takes 8 hours to read 248 pages book
george started a coin collection. his dad gave him 75 coins. each month he will add 20 coins. Which equation can be used to find y, the total number of coins in george's collection after x months? A. y = 75x + 20x By = 20x + 75 C. y = 75x - 20 D. 20x - 75
Answer: B
Step-by-step explanation: Hope this helps!
he got a one time thing of 75 coins and now gets 20 coins for each month which explains 20x. (X being the number of months)
The equation that could be used for determining the y should be option B y = 20x + 75
Calculation of an equation:
Since dad gave him 75 coins. each month he will add 20 coins.
Here we assume a number of months be x
So, the equation is
y = 20x + 75
Therefore, we can conclude that The equation that could be used for determining the y should be option B y = 20x + 75
learn more about an equation here: https://brainly.com/question/24271130
i will give brainliest please help
Answer:
1. 18
2. 15
3. Symmetric Property
Step-by-step explanation:
1. 8 + 10 = 18
2. Following symmetric prop. of eq. would mean that since 8 + 10 = 15 + 3 and 8 + 10 = 18, 15 + 3 = 18 as well
3. Symmetric Property of Equality states that if a = b, then b = a
which data set shows greater variability ?why?
A or B
shows greater variability because the MAD is greater that the MAD for
A or B
Solve 15t – 6 < 12t.
t > 2
t < 2
t < -2
t > -2
Answer:
T<2 its the answers
Your welcome
(IMAGE IS ATTACHED. PLEASE HELP! GIVING 100 POINTS)
What is the value of x?
Enter your answer in the box.
Answer:
x = 50
Step-by-step explanation:
→ Make the equations equal to each other
2 ( x + 10 ) = 3x - 30
→ Expand brackets
2x + 20 = 3x - 30
→ Minus 3x from both sides
-x + 20 = -30
→ Minus 20 from both sides
-x = -50
Opposite angles are equal
[tex]\\ \sf\longmapsto 2(x+10)=3x-30[/tex]
[tex]\\ \sf\longmapsto 2x+20=3x-30[/tex]
[tex]\\ \sf\longmapsto 3x-2x=30+20[/tex]
[tex]\\ \sf\longmapsto x=50[/tex]
4. Tom rides his bike a total of 6 14 miles to work over the course of 5 days.
How far does he ride each day?
How far will Tom ride his bike to and from work in 3 weeks?
6 14 miles in 5 days.
In 1 day Tom rides 6 14/5 = 1 228 miles
1 week has 7 days
5 weeks have 35 days
1 day Tom rides 1 228 miles
35 days Tom rides for 1 228 * 35 = 42 98miles.
What number would you get if you multiply the's numbers
1,2,3,4,5,6,7,8,9,10 ?
Solve the equation for x.
x=
Answer:
x=7
Step-by-step explanation:
Find the perimeter and area of the figure with the given coordinates:
A(-2,-1), B(-2,-4), C(3,-4), D(3,-1)
3 T-shirts cost $12. How
much will 50 T-shirts
cost?
Answer:
$200
Step-by-step explanation:
First, find the unit rate:
12/3= 4
Then multiply:
4*50= 200
Hope this helps!
please help with #2 and #4
Answer:
Problem 2: k = 3
Problem 4: NO SOLUTION
Step-by-step explanation:
Problem 2 work:
-4/3(12k + 27) = -57 - 9k
-16k - 36 = -57 - 9k -ADD THE -9k TO ITSELF AND TO -16k-
-7k - 36 = -57 -ADD THE -36 TO ITSELF AND -57-
-7k = -21
k = 3
Problem 4 work:
5/2(6w - 16) = 18w -(3w + 40)
15w - 40 = 18w - 3w - 40 -ADD THE -3w TO THE 18w-
15w - 40 = 15w - 40
NO SOLUTION BECAUSE BOTH SIDES ARE THE SAME
Answer:
5;:':;;gighifighfutfdyfuhufgfyhxfkcy
Find m angleA
A. 10
B. 20
C. 16
D. 14
Calculus, derivatives. Please help! Show work, if possible. Thanks! :)
Answer:
a. y=4
b. graph the given and y=4
Step-by-step explanation:
The given is y= 8 sin(x) cos(x)
to get y' which is the slope of the tangent line we take the derivative
for this problem, the derivative involves the constant rule (which states that the derivative a constant times a value is just the constant times the derivative of said value) and the multiplication rule (assuming that the two parts in question are represented by the variables a and b then the derivative of a*b = a*b'+b*a')
thus we get 8*(sin(x)*-sin(x)+cos(x)*cos(x))
-8sin^2(x)+8cos^2(x)
You can also leave the 8 differentiated out depending on the form you need.
Now that we have the derivative we can plug pi/4 into this equation to get the slope of the tangent line at that point
=8sin^2(pi/4)+8cos^2(pi/4)
this would equal -8*1/2 +8*1/2 which equals 0
the slope of the tangent at this point would be zero
To get the point for point slope form we plug the pi/4 into the given equation to get a y value and get the point (pi/4, 4)
this means the point slope equation would be
y-4=0(x-pi/4)
y-4=0
y=4
To graph you would just enter the given equation and the equation for the tangent line into a graphing software or calculator and see if the line is tangent at the point (pi/4, 4)
I need help guys please
i will be thankful
Answer:
16.94 cm
Step-by-step explanation:
Part A The problem involves a conversion from feet to miles. How many feet are in one mile? Use the Internet or another resource if you need help.Part B What is the height of the building in miles? Express the answer as a fraction in simplest form.Part C Use long division to find the decimal form of the building’s height in miles. Write the answer to four decimal places.Part D Review your answer to part C. Over which digit(s) must you draw an overline to show that the digit(s) repeat? Part E Christy’s sister, Chelsea, works in a nearby building that is 720 feet tall. What is the height of Chelsea’s building in miles? Express the answer as a fraction in simplest form. Part F Use long division to find the decimal form of the building’s height in miles. Write the answer to six decimal places. Part G Review your answer to part F. Over which digit(s) must you draw an overline to show that the digit(s) repeat?
Answer:
the answer is 3.14 when u solve it
PLEASE HELP ME LAST TIME I USED THIS APP SOEMBODY PUT RANDOM STUFF
Answer:
[tex]3.17 \times {10}^{ - 3} [/tex]
Step-by-step explanation:
First let's put the distance of Pluto in scientific notation:
3,670,000,000 = 3.67•10⁹
Now, to find the time you have to divide the distance by the speed, in this case is the distance from sun to Pluto, and the speed of light:
(1.17•10⁷)÷(3.67•10⁹) = 0.00317 minutes
Now put the result in scientific notation:
0.00317 = 3.17•10-³
HELP ME NOW!!! PLS I DONT KNOW THSE TPYE OF STUFF
Answer:
10 yd, because you subtract 15 to 5.
Jenny runs 7 miles in 80 minutes. At the same rate, how many miles would she run in 64 minutes?
Answer:
5.6miles
Step-by-step explanation:
find Jenny's speed per minute,
ie distance/time
[tex]\frac{7}{80} miles \: per \: minute[/tex]
find the distance travelled by multiplying the speed by the time
[
[tex] \frac{7}{80} \times 64 = \frac{56}{10} \\ = 5.6[/tex]
show your solution need an answer, please need an answer, please.
Answer:
As follows,
Step-by-step explanation:
You can solve these either by factoring or using the quadratic formula or other ways,
1. x^2+2x+1=0
Factoring,
(x+1)^2=0
x+1=0
x=-1
2.y^2-y-2=0
Using quadratic formula,
(-b±√(b^2-4ac))/2a
(--1±√(-1^2-4*1*-2))/2*1
(1±√(1+8))/2
(1±√(9))/2
(1±3)/2
y=(1±3)/2
y=(1+3)/2 y=(1-3)/2
y=4/2 y=-2/2
y=2 y=-1
3.y^2+y+1=0
Using quadratic formula,
(-b±√(b^2-4ac))/2a
(-1±√(1^2-4*1*1))/2*1
(-1±√(1-4))/2
(-1±√(3))/2
No real roots
4. x^2+9x+18=0
Using quadratic formula,
(-9±√(9^2-4*1*18))/2*1
(-9±√(81-72))/2
(-9±√(9))/2
(-9±3)/2
x=(-9+3)/2 x= (-9-3)/2
x=-6/2 x=-12/2
x=-3 x=-6
5.x^2+5x+6=0
Using quadratic formula,
(-5±√(b^2-4ac))/2a
(-5±√(5^2-4*1*6))/2*1
(-5±√(25-24)/2
(-5±1)/2
x=(-5+1)/2 x=(-5-1)/2
x=-4/2 x=-6/2
x=-2 x=-3
6. 3n^2-13n-10=0
Using quadratic formula,
(-b±√(b^2-4ac))/2a
(-(-13)±√(-13^2-4*3*(-10)))/2*3
(13±√(169-(-120))/6
(13±√289)/6
The discriminant b^2−4ac>0
So there are 2 real roots.
x=(13±17)/6
x=30/6 or x=-4/6
x=5 or x=-2/3
Someone tell me if I’m right
Answer:
Yes you are correct
Step-by-step explanation:
HELPPPP!!!!! PLEASEEE IM BEING TIMED !!!!!!!!!!!
Answer:
[tex]x=89[/tex]
Step-by-step explanation:
We can plug into the formula for the mean to get [tex](87+73+84+82+x)/5=83[/tex].
We can combine like terms on the left side to get [tex](326+x)/5=83[/tex].
We can multiply by [tex]5[/tex] on both sides to get [tex]326+x=415[/tex].
We can finally subtract [tex]326[/tex] from both sides to get [tex]x=89[/tex].
So, the answer is [tex]\boxed{x=89}[/tex] and we're done!
Suppose that G(x) = F(x) + 6. Which statement best compares the graph of
G(x) with the graph of F(x)?
O A. The graph of G(x) is the graph of Fx) shifted 6 units to the right.
O B. The graph of G(X) is the graph of F(x) shifted 6 units up.
O C. The graph of G(x) is the graph of F(X) shifted 6 units down.
O D. The graph of G(x) is the graph of Fx) shifted 6 units to the left.
9514 1404 393
Answer:
B. (the correct choice is marked)
Step-by-step explanation:
The value of the function for a given x is the vertical position of the point on the graph. Adding 6 to the function value shifts the graph up 6 units.
The graph of G(x) is the graph of F(x) shifted 6 units up.
Evaluate the expression
please mark this answer as brainlist
A student's height is measured as 66 in. to the nearest inch. What are the
student's minimum and maximum possible heights?
30/40 in simple form
Answer:
The simplest form is 3/4
Step-by-step explanation:
Cancel the common factor of 30 and 40
Write the Fraction in Simplest Form Of 30/40
Sonia has 14.84 l of juice. She pours it into 7 jars equally. How much juice is there in each jar
Answer:
2.12
Step-by-step explanation:
I did the maths equation
Answer:
2.12 liters in each jar
Step-by-step explanation:
Take the total amount of juice and divide it by the number of jars
14.84 liters / 7 jars
2.12 liters in each jar
6(2 – 3) = 2(3z - 9)
[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]
let's solve for z :
[tex]6(2 - 3) = 2(3z - 9)[/tex][tex]6( - 1) = 6z - 18[/tex][tex] - 6 + 18 = 6z[/tex][tex]6z = 12[/tex][tex]z = \dfrac{12}{6} [/tex][tex]z = 2[/tex]Answer:
z = 2
Step-by-step explanation:
6(2 - 3) = 2(3z - 9)
12 - 18 = 6z - 18
12 = 6z
2 = z
Hopefully this helped!
Brainliest please?
1.
WRITE "six million five hundred thousand four" in standard form.
94. Birth Rate of Unmarried Women In the United States, the birth rate B of unmarried women (births per 1000 unmarried women) for women whose age is a is modeled by the function B(a) = -0.33a + 19.17a-213.37. (a) What is the age of unmarried women with the highest birth rate? 29.0 years (b) What is the highest birth rate of unmarried women? (e) Evaluate and interpret B(40).
Using concepts of quadratic equation, we have that:
a) The age of unmarried women with the highest birth rate 29 years.
b) The highest birth rate of unmarried women is of 65 births per 1000 unmarried women.
c) B(40) = 25.43, which means that the birth rate of unmarried women of age 40 is of 25.43 births per 1000 unmarried women.
The birth-rate for women of age a is given by:
[tex]B(a) = -0.33a^2 + 19.17a - 213.37[/tex]
Which is a quadratic equation with coefficients [tex]a = -0.33, b = 19.17, c = -213.37[/tex]
Item a:
The age with the highest value is the a-value for the vertex, which is:
[tex]a_V = -\frac{b}{2a} = -\frac{19.17}{2(-0.33)} = 29[/tex]
The age of unmarried women with the highest birth rate 29 years.
Item b:
The rate is B(29), which is:
[tex]B(29) = -0.33(29)^2 + 19.17(29) - 213.37 = 65[/tex]
The highest birth rate of unmarried women is of 65 births per 1000 unmarried women.
Item c:
[tex]B(40) = -0.33(40)^2 + 19.17(40) - 213.37 = 25.43[/tex]
B(40) = 25.43, which means that the birth rate of unmarried women of age 40 is of 25.43 births per 1000 unmarried women.
A similar problem is given at https://brainly.com/question/24626341
Solve for d.
Help is appreciated thank u!!
Answer:
d = 16.88
Step-by-step explanation:
Start by simplifying both sides of the equation then isolate the variable