Darnell spends 3.32 hours on his phone this week.
What is a percentage?A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.
Given:
Darnell wants to limit his screen time,
last week he spent an average of 3[tex]\frac{1}{2}[/tex] hours on his phone each day.
That means, 3.5 hours on the phone.
This week,
he reduced his screen time by 5% to the nearest hour.
That means,
3.5 x 5/100
= 3.5 - 0.17
= 3.32 hours.
Therefore, he spent 3.32 hours this week.
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For an angle A, it is known that sin A=-4/5 and Tan < 0. Determine the value of secantA
Answer:
5/3
Step-by-step explanation:
sin A = -4/5 & tan A < 0
=> the angle is in forth quadrant
so, cos A = 3/5 and secant A = 5/3
Simon visits his local fast-food restaurant and orders a burger, a side, a drink and an ice cream. He can choose either a hamburger, a cheeseburger or a turkey burger; he can choose either potato chips, fries or salad as a side; he can choose one drink from coke, lemonade, sprite, or tea; and for his ice cream he can choose either a cone or a sundae.
How many different possible meals could Simon choose?
Answer: 72 options
Step-by-step explanation: please I need brainliest for next rank
On a ship the ratio of crew members to passengers is 1:15. There are 540 passengers. How many crew members are there?
Answer: 36
Step-by-step explanation: Keep multiplying 15 until you get 540. 36 * 15 is 540
Answer:
36 Crew members
Step-by-step explanation:
Divide 540 by 15, to find how much the new amount of passengers had increased. It should be 36.
Now to keep the ration even, you need to multiply the amount of Crew members by 36 too.
Double checking your answer:1/15=0.06666666667...
36/540=0.06666666667...
There's probably other ways to solve this, this is just how I did it.
PLZ HELP!!!
if p = -1,-1 find the image of p under the following rotation 270 counterclockwise
Answer: -1, 1
Step-by-step explanation:
The other answer is valid.
factorise 4a^2+b^2-4ab-8a+4b+4
Answer:
The factorized form of the given expression is [tex]4 [(a-1)^2 - b(a - 1 + \frac{b}{4})][/tex]
Step-by-step explanation:
Given;
4a² + b² - 4ab - 8a + 4b + 4
This expression is factorized as follows;
(4a² - 8a + 4) + (b² - 4ab + 4b)
(4a² - 4a - 4a + 4) + b² - 4b(a - 1)
(4a - 4)(a - 1) + b² - 4b(a - 1)
(4a - 4)(a - 1) - 4b(a - 1) + b²
4(a - 1)(a - 1) - 4b(a - 1) + b²
4(a - 1)² - 4b(a - 1 + b/4)
[tex]4(a- 1)^2 - 4b(a - 1 + \frac{b}{4} )\\\\4 [(a-1)^2 - b(a - 1 + \frac{b}{4})][/tex]
Carol measured her windows for new curtains. She measured the width to be 34 in when it was actually 36 inches. Which was carols approximate percent error in her window measurement .
A. 2.0%
B. 2.8%
C. 5.6%
D. 5.9%
Answer:5.9
Step-by-step explanation: Clarification from teacher
The distribution of home prices in Nirvana is skewed to the left. The median price is $167,900. The mean is:
Group of answer choices
greater than $167,900.
unable to be determined with this information.
lower than $167,900.
$167,900.
Answer:
Lower than $167,900
Step-by-step explanation:
PLEASE HELP ME DUE IN 5 MINS! Evaluate the expression for =10
(−10)(+2)
Answer:
12
Step-by-step explanation:
(10-10)(10+2)
=12
do whats inside the brackets then multiply (BEDMAS)
hope this helps
Can someone plz help me plz I beg u plz
Answer:
A.... X=3
Step-by-step explanation:
What is the area of a circle with a diameter of 5.4
P.S Show work
7 is 28% of?.. Please help!!
Answer:
25
Step-by-step explanation:
Hope this help.
9. Find the missing values for the following similar figures
The missing values of the similar triangles is x = 20/3 and y = 4.5
What are similar triangles?If two triangles' corresponding angles are congruent and their corresponding sides are proportional, they are said to be similar triangles. In other words, similar triangles have the same shape but may or may not be the same size. The triangles are congruent if their corresponding sides are also of identical length.
Corresponding sides of similar triangles are in the same ratio. The ratio of area of similar triangles is the same as the ratio of the square of any pair of their corresponding sides
Given data ,
Let the first triangle be ΔABC
Let the second triangle be ΔXYZ
Now , the corresponding sides are
15 / 10 = y / 3
Multiply by 3 on both sides , we get
y = 45 / 10
y = 4.5
Now , for the similar triangles , corresponding sides of similar triangles are in the same ratio
And , 2 / 3 = x / 10
Multiply by 10 on both sides , we get
x = 20/3
Hence , the similar triangles are solved
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Solve 8y+21=-14y+26 for y. Round your answer to the nearest tenth.
Answer:
y=0.2
Step-by-step explanation:
it will give you 5/22 and the decimal form will be 0.2272727...... and rounded to the nearest tenth will be 0.2
Andy estimated that he would need 73 feet of lumber for a tree house project. He later found that the actual amount of lumber needed was 62 feet. What was the percent error of Andy's estimation?
Answer:
17.74%
Step-by-step explanation:
The formula for percent error is given as:
|Estimated value - Actual value|/Actual value × 100
From the above question:
Estimated value = 73 feet
Actual value = 62 feet
Hence,
Percent error = |73 - 62|/62 × 100
= 11/62 × 100
= 17.741935484%
Approximately , percent error = 17.74%
Therefore, the percent error of Andy's estimation is 17.74%
The angle of elevation from a viewer to the top of a flagpole is 50°. The viewer is 80 ft away and the viewer's eyes are 5.5 ft from the ground. How high
is the pole to the nearest tenth of a foot?
Answer:
Step-by-step explanation:
100.2 the ration
A ring-shaped region is shown below.
Its inner radius is 8 yd, and its outer radius is 10 yd.
Syd
10 yd
Find the area of the shaded region.
Use 3.14 for it. Do not round your answer
Answer:pls just use my way
Step-by-step explanation:
get the area of the small circle than the bit and subtract like this,Big circle minus small circle and then =the answer:D
A piece of string 85 cm is divided into three pieces in the ratio 2 : 3: 5. Calculate: i) shortest piece
Answer: 17 cm
Step-by-step explanation:
First step is to add up the numbers in the ratio:
= 2 + 3 + 5
= 10
The shortest piece according to the ratio is the 2 in the ratio. To find out the length this 2 corresponds with, use two as the numerator and 10 as the denominator:
= 2 / 10 * 85 cm
= 17 cm
Solve for x. Enter the solutions from least to greatest.
(x - 3)^2 - 81 = 0
lesser x=
greater x =
Answer:
lesser x = -6
greater x = 12
Step-by-step explanation:
(x - 3)^2 - 81 = 0
(x - 3)^2 = 81
x - 3 = +/- 9
x - 3 = 9 or x - 3 = -9
x = 12 or x = -6
400-[200-{35+15-70(100/25)}] plz hurry
Answer:
-30
Step-by-step explanation:
400-[200-{35+15-70(100/25)}]
400-[200-{35+15-70(4)}]
400-[200-{35+15-280}]
400-[200-{50-280}]
400-[200-{-230}]
400-[430]
-30
I need help with this! Will mark brainliest
Answer:
59 degrees
Step-by-step explanation:
If BCG is 40 degrees and AGC is 19 degrees, you would add the 2 angles to find AGB giving you 59 degrees.
Write the equations in slope-intercept form: 15x + 3y = 6
(Help)
Answer:
y=-5x+2
Step-by-step explanation:
Before we get started, we should identify slope-intercept form.
y=mx+b.
Step 1 : Isolate the y by dividing everything by 3.
(15x+3y=6)/3 = 5x+y=2
Step 2 : Move the x value to the right side.
y=-5x+2
Answer:
y=5x-2
Step-by-step explanation:
15x+3y=6
3y=15x-6....both side divide by 3
y=5x-2
How do I find and solve this? Find x.
Answer:
x=36
Step-by-step explanation:
[tex]60^{2} = 48^{2} + x^{2} \\x^{2} =60^{2} - 48^{2}\\x^{2} =3600 - 2304\\x=36[/tex]
2. Determine how much is in a retirement account after 20 years if $5,000 was invested at 6.05%
compounded weekly.
Answer:
16,755.63
Step-by-step explanation:
I'm going to assume that there are 52 weeks in a year
Compound interest formula:
[tex]PV(1+\frac{i}{n})^{n*t}\\5000(1+\frac{.0605}{52})^{52*20}\\5000(1.001163462)^{1040}\\16755.63406[/tex]
which i wwill round to
16755.63
The amount in the retirement account is A = $ 16,755.63
What is Compound Interest?Compound interest is interest based on the initial principle plus all prior periods' accumulated interest. The power of compound interest is the ability to generate "interest on interest." Interest can be added at any time, from continuously to daily to annually.
The formula for calculating Compound Interest is
A = P ( 1 + r/n )ⁿᵇ
where A = Final Amount
P = Principal
r = rate of interest
n = number of times interest is applied
b = number of time periods elapsed
Given data ,
Let the compound interest amount be represented as A
Now , the interest rate r = 6.05 %
The number of times the interest is applied = weekly
The principal amount P = $ 5,000
Now , the number of years = 20 years
And , A = P ( 1 + r/n )ⁿᵇ
On simplifying , we get
A = 5,000.00(1 + 0.0605/52)⁵²ˣ²⁰
A = 5,000.00(1 + 0.0011634615384615)¹⁰⁴⁰
A = $ 16,755.63
Hence , the amount is A = $ 16,755.63
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If it took 8 people 10 hours to build a barn, how long would it take 14 people to build the same barn?
Answer:
17.5
Step-by-step explanation:
Which box plot matches the data set?
10, 14, 20, 24, 30, 40, 43, 45, 46, 48
For this data set, the first quartile is 20, the median is 35, and the third
quartile is 45.
Answer: C
Step-by-step explanation:
i really need help pleasee help
Answer:
I believe your answer is 50.27! :)
Find the missing angle
Answer:
105
Step-by-step explanation:
The sum of the opposite interior angles of a triangle is equal to the exterior angle
25+80 = ?
105 = ?
Answer:
105
Step-by-step explanation:
The missing angle is supplementary to the missing inside angle of the triangle shown.
to find the missing angle in the triangle, set up your formula as
180=25+80+x
180-25-80=x
75=x
The missing angle is then 180-75=105
I need help on this one??!??
Answer:
D. stratosphere
Step-by-step explanation:
The stratosphere contains atmospheric ozone.
Please solve ASAP please
Answer:
$40
Step-by-step explanation:
It's very simple, 0.1 * 150 = 15. Then add $25 by 15. 25 + 15 = 40.
A manufacturer of screened sweatshirts includes a shipping charge of $5.99 on all online orders. Customers also pay 2.5% tax on their purchases. There is a linear relationship between c, the cost of the items purchased, and t, the total cost including shipping and tax. Select each statement that correctly represents the relationship between c and t. Mark all that apply. *
Answer:
t = 1.025c + 5.99
Step-by-step explanation:
Recall : general for of a linear equation is given by :
y = mx + c
Given the following :
Item cost = c
Shipping charge = $5.99
Tax on purchases = 2.5%
Total cost, t
t = c + tax + shipping cost
Tax on purchase : 2.5% * item cost ; 0.025c
Shipping = $5.99
Hence,
Total cost, t = c + 0.025c + 5.99
t = 1.025c + 5.99
