Answer:
she can buy 4 e books.
I don't know about the equation but there is the work below if that helps.
Step-by-step explanation:
8x 1.29= 10.32
60-10.32=49.68
49.68/ 9.95= 4.99
she can buy 4 books.
Answer:
um i have this question so i dont know
Step-by-step explanation:
Plz help! Identify the function represented by the graph or table is linear or nonlinear
The surface area of a cuboid is 102 cm2. If its length is 2 cm and its breadth is 3 cm, find its height.
Answer:
Height h = 9 cm
Step-by-step explanation:
Given:
Surface area of cuboid = 102 cm²
Length l = 2 cm
Breadth b = 3 cm
Find:
Height h
Computation:
Surface area of cuboid = 2[lb + bh + hl]
102 = 2[(2)(3) + (3)(h) + (h)(2)]
51 = 6 + 3h + 2h
45 = 5h
Height h = 9 cm
Answer: 9 cm
Step-by-step explanation:
10. A bag contains 4 red balls, 6 green balls and some white balls. If the probability of not drawing a white ball in one draw be \(\frac{2}{3}\) then find the number of white balls.
Answer:
No of white balls = 5
Step-by-step explanation:
Given that,
Total no of red balls = 4
Total no of green balls = 6
The probability of not drawing a white ball in one draw be, [tex]P=\dfrac{2}{3}[/tex]
We need to find the number of white balls. Let there are x balls.
The probability of drawing a white ball = 1 - the probability of not drawing a white ball
= 1 -2/3
= 1/3
Using the formula for solving probability of having a white ball.
[tex]P=\dfrac{\text{favorable outcome}}{\text{total no of outcomes}}\\\\\dfrac{1}{3}=\dfrac{x}{4+6+x}\\\\\dfrac{1}{3}=\dfrac{x}{10+x}\\\\10+x=3x\\\\10=2x\\\\x=5[/tex]
Hence, there are 5 white balls.
If the picture isn't clear I can provide another if it helps
The ordered pair below represents a point on the line 3y + 4x = 5. Enter the missing y-coordinate for this point in the box. In other words, when x is −1/4, what is y?
Answer:
y = 2
Step-by-step explanation:
3y + 4 * (-1/4) =5
3y -1 = 5
3y = 6
y = 2
Which percent is equivalent to 2.5?
2.5%
25%
250%
2,500%
Answer:
250%
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
Select all of the linear equations that are in standard form. Group of answer choices 15x-14y=22 3x+5y=7 2.5x-y=17 -2x+8y=14 42x+0.4y=15
Answer: 15x-14y=22
3x+5y=7
2.5x-y=17
42x+0.4y=15
Step-by-step explanation:
The standard linear equation of two variables x and y is given by :-
Ax +By = C , where A is a positive integers, and B, and C are integers.
Therefore, from the given options the linear equations that are in standard form are
15x-14y=22
3x+5y=7
2.5x-y=17
42x+0.4y=15
[-2x+8y=14 is not in standard form ∵ -2 is a negative integer.]
5. Which of the following equations is in standard form?
a. 2x = 7
b. -3x + 2y = 10
c. y - 3 = x
d. y + 5 = 4 (x - 4)
Answer:
the answer is B
Step-by-step explanation:
I’ll give you brainiest if you answer correctly! I need help
Answer:
y= -3/11x + 13
Step-by-step explanation:
hope this helps ( my cousins helped me) :))
In 1995, the population of a town was 33,500. It is decreasing at a rate of 2.5% per decade.
a. Identify whether the function is a growth or decay function.
b. Write the function, f(n), that expresses the population of the town after (n) decades.
c. What is the population in the year 2025 to the nearest hundred?
Answer:
a. The function is a decay function
b. The function is f(n) = 33500 [tex](0.975)^{n}[/tex]
c. The population in the year 2025 is 31,800 to the nearest hundred
Step-by-step explanation:
The form exponential growth function is y = a [tex](1+r)^{x}[/tex] , where
a is the initial valuer is the rate of increase in decimalThe form exponential decay function is y = a [tex](1-r)^{x}[/tex] , where
a is the initial valuer is the rate of decrease in decimal∵ In 1995, the population of a town was 33,500
∴ a = 33,500
∵ It is decreasing at a rate of 2.5% per decade
→ The decrease means, it is a decay function, then use the 2nd form above
∴ f(n) = a [tex](1-r)^{n}[/tex] , where f(n) is the population in n decades
∴ It is a decay function
a. The function is a decay function
∵ The rate is 2.5% per decade ⇒ 2.5% each 10 years
∴ r = 2.5%
→ Divide it by 100 to change it to decimal
∵ 2.5% = 2.5 ÷ 100 = 0.025
∴ r = 0.025
→ Substitute the values of a and r in the f(n)
∴ f(n) = 33500 [tex](1-0.025)^{n}[/tex]
∴ f(n) = 33500 [tex](0.975)^{n}[/tex]
b. The function is f(n) = 33500 [tex](0.975)^{n}[/tex]
∵ We need to find the population in 2025
→ Find how many decades from 1995 to 2025
∵ There are 20 years from 1995 to 2025
∵ 1 decade = 10 years
∵ n is the number of decads
∴ n = 2 ⇒ (20/10 = 2)
→ Substitute n in the function by 2
∵ f(2) = 33500 [tex](0.975)^{2}[/tex]
∴ f(2) = 31845.9375
→ Round it to the nearest hundred
∴ f(2) = 31800
c. The population in the year 2025 is 31,800 to the nearest hundred
A computer company has 1030 computers in two different warehouses. Warehouse A has 150 more computers than Warehouse B. How many computers are in Warehouse B?
Answer:
880
Step-by-step explanation:
Sarah was thinking of a number. Sarah adds 5 then divides by 5 to get an answer of 8. Form an
equation with x from the information.
Answer:
(x + 5)/5 = 8.
Step-by-step explanation:
Let the number she thought of be x, then:
(x + 5)/5 = 8.
What value of b will cause the system to have
infinite number of solutions?
y=6x-b
-3x + y=-3
b=
O 2
O 4
O6
O8
9514 1404 393
Answer:
6
Step-by-step explanation:
The value of b that makes the two lines identical is the opposite of the y-intercept of the line.
y = 6x -6 . . . . has y-intercept = -6
The value of b is the number in the term -6, so is 6.
An oil-well contractor drills a shaft 7 meters deeper into the ground every 2 hours. Which graph has a slope that best represents this rate?
Answer:
Graph G
Step-by-step explanation:
The graphs are attached
Given that the oil-well contractor drills a shaft 7 meters deeper into the ground every 2 hours, hence the rate at which the shaft drills = 7 meter / 2 hours = 3.5 meters per hour
Since the drill goes into the ground, hence the rate is negative that is -3.5 meters per secong
The slope (rate of change) of a line (m) is given by:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
a) For graph F, the line passes through the point (0,0) and (10, -20). Hence:
[tex]Slope\ of\ line\ F=\frac{-20-0}{10-0} =-2\ meters\ per\ second[/tex]
b) For graph G, the line passes through the point (0,0) and (10, -70). Hence:
[tex]Slope\ of\ line\ G=\frac{-70-0}{10-0} =-7\ meters\ per\ second[/tex]
c) For graph H, the line passes through the point (0,0) and (10, -35). Hence:
[tex]Slope\ of\ line\ H=\frac{-35-0}{10-0} =-3.5\ meters\ per\ second[/tex]
d) For graph J, the line passes through the point (0,-3.5) and (10, -3.5). Hence:
[tex]Slope\ of\ line\ j=\frac{-3.5-(-3.5)}{10-0} =0\ meters\ per\ second[/tex]
Answer:The answer is H , It is the graph where -10 is right below the 0 on the y.
Four pets in “Among Us” cost $16. Mr. Maxine says, at that rate, he will be able to purchase all 10 pets for $35!!! Is he right? Explain the solution
Answer:
No he is not lol 16÷4=4, To buy 10, 10×4=40. 40-35=5 he needs 5 dollars more
20 min! help!!
Quadrilateral L M N O is reflected over a line to form quadrilateral C D A B. Quadrilateral LMNO is reflected over the line as shown, resulting in quadrilateral CDAB. Given the congruency statement LMNO ≅ CDAB, which segment corresponds to ML? AB AD CD DC
Answer:
Your answer is dc
Step-by-step explanation:
What does this mean? Its REALLY important I get this right.
The correct answer is Option A
[△SRT]
Answer:
[tex]\triangle{SRT}[/tex]
Step-by-step explanation:
You can eyeball this question and you can easily see that [tex]\angle{R}=\angle{M}[/tex] and [tex]\angle{S} = \angle{N}[/tex] so then the answer would be [tex]\triangle{SRT}[/tex]
i need help someone please help me.
Answer:
(2)
Step-by-step explanation:
AT LEAST how many cubes like this one need to be joined together to form another LARGER SIZED CUBE?
Answer:
25?
Step-by-step explanation:
Answer:
Hi
Step-by-step explanation:
Sally plans to retire at the age of 64 and has an account that will provide 6% interest compounded monthly. Determine how much money needs to be in Sally's account on the day sure turns 64 if she would like to be able to receive monthly payments of $9500 from age 64 until age 83.
Answer:
She needs to have $694,700 in her account
Step-by-step explanation:
Here, we want to know the amount that should be in Sally’s account on that day she turns 64
Firstly, we need to know the difference between the ages of 64 and 83
The difference between these ages are 83-64 = 19
So, she intends receiving $9,500 per month for 19 years
The number of months in 19 years is 19 * 12 = 228 months
So, the total amount of money she needs is 228 * 9,500 = $2,166,000
Now, we have an interest that would be compounded but in this case, we already have the amount needed but what we need is the principal to be compounded in this case
The formula for compound interest here is;
A = P( 1 + r/n)^nt
where A is the amount which is 2,166,000
P is ?
r is the interest rate = 6% = 6/100 = 0.06
n is the number of times we are compounding in a year; since it is monthly, that would be 12 times in a year
t is the number of years which is 19 in this case
Substituting all values, we have that;
2,166,000 = P( 1 + 0.06/12)^(12*19)
2,166,000 = P(1.005)^(228)
P = 2,166,000/(1.005)^228
P = $694,699
This rounded to a whole dollar is P = $694,700
Could somebody please help... I’ll give a brainliest for a brainliest... on your next question I’ll answer.
Answer:
X
Step-by-step explanation:
18/6=3
if i dont get this right my dad will be furious pls help
On Saturday, 4.14 inches of snow fell, and on Sunday, 0.93 inch of snow fell. On Monday, twice as much snow fell as fell on Sunday. How much snow fell during the 3-day period?
Answer:
The answer is 6.93 inches of snow.
Step-by-step explanation:
Snow fall on Sunday: 0.93. Twice as much on Monday: 0.93x2=1.86
Add it all up: 0.93+4.14+1.86=6.93
Multiply 2.3. (-1.2)
Answer:
-2.76
Step-by-step explanation:
2.3x(-1.2)
= -2.76
The audience thinks 30\%30%30, percent of Brandon's jokes are funny.
What fraction of Brandon's jokes does the audience think are funny?
Answer:
3/10
Step-by-step explanation:
Brandon's jokes does the audience think are funny = 30%
What fraction of Brandon's jokes does the audience think are funny?
Express the percentage as a fraction
= 30%
= 30 / 100
= 3/10
The fraction of Brandon's jokes that the audience think are funny is 3/10
I need help thank you
1 9 , 2 114 I Hope it help this is correct
Answer:
351
Step-by-step explanation:
[tex]\frac{1}{3}[/tex] p - 3 = 114 ( multiply through by 3 to clear the fraction )
p - 9 = 342 ( add 9 to both sides )
p = 351
There are 351 pages in the novel
I need help ASAP this has to be 20 characters long- oops?
Answer:
10. 700,000L greater than 70 kL
11. 6 gal less than 30 qt
12. 54 kL equals 540,000 dL
13. 10pt equal 5pt
14. 500mL less than 50L
15. 14c less than 4qt
Step-by-step explanation: Conversionssssss :)
whoever comments first gets brainliest and whoeverelse answers gets 50 points cause why not 2=2=3=4=5=6=7=8=9=0+12345-7=9(so it doesn't get taken down)
Answer:
Yo whats up
Step-by-step explanation:
I win and im the brainlest.
4. At a certain time of day, an 18-foot pole casts a shadow that forms an angle of 50° with the
ground. How long is the shadow?
Step-by-step explanation:
Opposite to the angle = Pole
Adjacent to the angle = Shadow
Therefore tan50° = 18ft/x,
x = 18ft / tan50° = 15.1ft.
A recipe requires 8 cups of baking powder. You can only measure using 2/3 cups.
Answer:
sorry to tell you this but you will be measuring for a while
Step-by-step explanation:
go to walmart get a 2/3 measuring cup and measure out 8 cups i guess. get me some chips while your there plss. <3
Find the area of a square if the sides measure 2 2/3 meters
Answer:
Step-by-step explanation:
2.66666666666666666666 * 2.666666666666666666 = 7.1111111111111 m