Kelley has to work 45 hours at her job to earn enough money to buy a phone. She works 3 hours each day. If she has worked x days, write a linear equation to represent how many more hours Kelley must work to afford the phone.
The linear equation that represents how many more hours Kelley must work to afford the phone is 3x - 45 = 0
Functions and valuesFunctions are expressions represented in terms of a variable.
From the question, we have the following
Total number of hours = 45
If she works 3 hours per day and has worked x days, the total number of hours she needs to work is 3x
Equating to the total hours wwill give:
3x = 45
3x - 45 = 0
Hence the linear equation that represents how many more hours Kelley must work to afford the phone is 3x - 45 = 0
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Solve each equation by using the square root property. 4X^2+9+=33
Answer:
Step-by-step explanation:
4X^2=33-9
4X^2=24
X^2=24:4
X^2=6
X=\sqrt{6}
Good luck!
a cyclist bike a certain distance in 45 minutes. How long will it take a pedestrian to travel the same distance if he travels 2 2/3 times slower than the cyclist in minutes to hours.
Need by 3/14/22
Multiply time by the difference:
45 x 2 2/3 = 120 minutes
1 hour = 60 minutes
120/60 = 2 hours
Answer: 120 minutes which equals 2 hours
help please.! and thank you
Answer:
common difference is 4
Step-by-step explanation:
12-4=8
8-4=4
If x=y then 5x=5y what property
If x = y, then 5x = 5y --> Multiplication Property
HELP ME PLEASE!!!!!
this is hard for me i need help
Answer:
-1 1/2, 3
Step-by-step explanation:
Heather is 5 feet 7 inches tall. There are
approximately 2.5 cm in one inch. What is
Heather's height in centimeters?
Plz HELP
Item 9
A conjecture and the paragraph proof used to prove the conjecture are shown.
Given: ABCD is a parallelogram. Segment DC bisects angle B D E. Prove: angle 1 is congruent to angle 3. Parallelogram A B C D. Two rays D B and D E share endpoints at vertex D. Ray D B extends diagonally up to the right from D C at vertex D forming interior angles A B D and B D C. Angle A B D is labeled 1 and angle B D C is labeled 2. Ray D E extends diagonally down to the right from segment D C at vertex D forming an exterior angle C D E. Angle C D E is labeled 3.
Drag an expression or phrase to each box to complete the proof.
It is given that ABCD is a parallelogram, so AB¯¯¯¯¯∥DC¯¯¯¯¯ by the definition of parallelogram. So, ∠1≅ ∠2 by the alternate interior angles theorem. It is also given that DC¯¯¯¯¯ bisects ∠BDE, so ∠2≅ Response area by the Response area. Therefore, Response area ≅∠3 by the Response area.
option choices
Transitive property of congruence
definition of angle bisector
∠1
∠2
∠3
Answer:
goes in order like...
∠3
definiton of angle bisector
∠1
transitive property of congruence
Step-by-step explanation:
i took the test and got it right
m = -(4+ m) +2
what is m?
Answer:
m = -1
Step-by-step explanation:
[tex]m = - (4 + m)[/tex]
Use - to open the bracket
[tex]m = - 4 - m + 2[/tex]
Collect like terms and simplify
[tex]m + m = - 4 + 2 \\ 2m = - 2[/tex]
Divide both sides of the equation by 2
[tex] \frac{2m}{2} = \frac{ - 2}{2} [/tex]
Simplify
[tex]m = - 1[/tex]
On your graph paper, plot the two points. Then determine the distance between the two points. Round your answers to the nearest hundredth. (2,3) and (-1,4 )
Answer:
3.16
Step-by-step explanation:
estimate the area of the circle. use 3.14 3.14 or 22 7 227 for π π.
Answer:
615.44
Step-by-step explanation:
If the diameter is 28, that means the radius is 14.
The formula for the area of a circle is pi x radius to the power of 2. So, 14 to the power of 2 (or 14 x 14) equals 196. 196 x 3.14 (pi) = 615.44
The estimated area of the circle is about 615.44 cm² or 616 cm², depending on which value you use for π.
How to find the area of a circle?Suppose the circle has radius of 'r' units, then, its area is given as:
[tex]A = \pi \times r^2[/tex] sq. units
Since radius of a circle is half of its diameter, so if diameter is of 'd' length, then r= d/2, thus, area can be rewritten as:
[tex]\pi \times (\dfrac{d}{2})^2[/tex] sq. units
We are given that;
Diameter=28cm
Now,
In this case, the diameter of the circle is 28 cm, so the radius is half of that:
r = 28 / 2 = 14 cm
Plugging this value into the formula, we get:
A = π × 14²
Now we can use either 3.14 or 22/7 for π. Let’s use both and compare:
A ≈ 3.14 × 14² ≈ 3.14 × 196 ≈ 615.44 cm²
Or
A ≈ (22/7) × 14² ≈ (22/7) × 196 ≈ (4312/7) cm² ≈ 616 cm²
Therefore, by the area of circle the answer will be 615.44 cm² or 616 cm², depending on which value you use for π.
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for each of the following, give the equation of the line shown
i didn't know the answer sorry
How many planes appear in this figure?
Answer:
We can't see the planes
Step-by-step explanation:
Answer:
Put the question up bruh
Step-by-step explanation:
5 × -92 =
Just a quick response on how to solve this, thanks a ton!
Answer:
-460
Step-by-step explanation:
I multiply by splitting the numbers into digits. So for the 90, in my head I did 5 × 90, which is 450. Then I did 2 × 5, this is 10. Now I added those up to make 460. Considering the 92 is negative, the answer will also be negative.
a formula for 6 gallons of light green paint uses 3/8 gallon of white paint. Liam has 9/16 gallon does Liam have enough white paint to make 8 gallons of light green paint?
Given:
6 gallons of light green paint uses [tex]\dfrac{3}{8}[/tex] gallon of white paint.
Liam has [tex]\dfrac{9}{16}[/tex] gallon of white paint.
To find:
Whether Liam have enough white paint to make 8 gallons of light green paint.
Solution:
Here, 6 gallons of light green uses [tex]\dfrac{3}{8}[/tex] gallon of white paint.
So, the white paint for 1 gallon of light green [tex]=\dfrac{\dfrac{3}{8}}{6}[/tex]
[tex]=dfrac{3}{8\times 6}[/tex]
[tex]=\dfrac{3}{48}[/tex]
[tex]=\dfrac{1}{16}[/tex]
It means, 1 gallons of light green uses [tex]\dfrac{1}{16}[/tex] gallon of white paint.
White paint for 8 gallon of light green [tex]=8\times \dfrac{1}{16}[/tex]
[tex]=\dfrac{8}{16}[/tex]
She has [tex]\dfrac{9}{16}[/tex] gallon of white paint, which is greater than [tex]=\dfrac{8}{16}[/tex] gallons.
Therefore, Liam have enough white paint to make 8 gallons of light green paint.
If Liam has 9/16 gallon, he has enough white paint to make 8 gallons of light green paint
Given that 6 gallons of light green paint use 3/8 gallon of white paint, this can be expressed as:
3/8 gallons of white paint = 6 gallons of light green
We are to determine if 9/16 gallons will be enough to make 8 gallons of light green paint. This can be expressed as
9/16 gallons of white paint = x
Divide both expressions
3/8 * 16/9 = 6/x
2/3 = 6/x
Cross multiply
2x = 3 * 6
2x = 18
x = 18/2
x = 9
This shows that if Liam has 9/16 gallon, he has enough white paint to make 8 gallons of light green paint
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Helps me solve this problem please middle one
Answer:
D
Step-by-step explanation:
Hope u got it.......
3( x - 4) = -2( 4 - x)
Step-by-step explanation:
first multyply x-4 by 3
second: same as first no:
put the algebric expression in same side
then do 3x-2x = -8 plus 12
then your answer is ready
A video game which originally sold for $40 was reduced $5. Find the
percent of reduction.
Answer:
12.5%
Step-by-step explanation:
A cone has surface area 360π in^2 and volume 800π in^3. the cone is dilated, and the surface area of the dilated cone is 2,250π in^2. what is the dilated cone's volume? asap! please my mom is trying to hurt me im locked in my closet! my dads home!!!!!!!!
they're trying to make me eat something called mellotonin while my mom is sniffing sugar in the livingroom!!!!
The dilated cone's with surface area of 2,250π in^2 has a volume of about 12500π in³
What is dilation?
Dilation is the increase or decrease in the size of a figure.
The cone has surface area 360π in² and volume 800π in^3. the cone is dilated, and the surface area of the dilated cone is 2,250π in^2.
Hence:
Scale factor² = dilated cone area / cone surface area
scale factor² = 2250π / 360π
Scale factor = 2.5
Volume of dilated cone = 2.5³ × 800π = 12500π in³
The dilated cone's with surface area of 2,250π in^2 has a volume of about 12500π in³
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You plant a tomato plant in your garden. It starts at 8 inches tall. After 1 week, it grows to 11 inches tall. After two weeks, it is now 14 inches tall. After 3 weeks, the plant is 17 inches tall. Write a linear equation that represents this model. How tall is the tomato plant after 56 weeks?
Answer:
The tomato plant is 176 inch tall after 56 weeks.
Step-by-step explanation:
x ⇒ weeks and y ⇒ inch.
Week 0 the tomato plant starts at 8 inch tall, week 1 it grows to 11 inch tall, week 2 it grows to 14 inch tall, week 3 it grows to 17 inch tall, week 56 is ? inch tall. So, every week (x) the tomato plant grows 3 inch (y).
y = 3x + 8
y = (3 × 56) + 8
y = 168 + 8
y = 176 inch
[tex]h(n) = 8 + 3n[/tex]
Using the function, after 56 weeks, the height of the plant is of 176 feet.The linear model for the height after n weeks has the following format:
[tex]h(n) = h(0) + an[/tex]
In which:
h(0) is the initial height. a is the rate of change.Starts at 8 inches tall, thus h(0) = 8. Each week the height increases 3 inches, thus, a = 3, and the model is:
[tex]h(n) = 8 + 3n[/tex]
After 56 weeks, the height is of h(56), thus:
[tex]h(56) = 8 + 3(56) = 176[/tex]
176 inches tall after 56 weeks.
A similar problem is given at https://brainly.com/question/16302622
Roger had 2kg of rice, he sold 15%.How many grams of rice did he sell
FULL EXPLANATION AND WORKING
Answer:
300 grams
Step-by-step explanation:
2kg = 2000 grams
15% = 15/100
15/100 × 2000 = 300 grams
PLEASE MARK ME AS BRAINLIEST
giving brainlist for correct answer. :))
Answer:
3300 m²
Step-by-step explanation:
Area of a triangle = 1/2 x base x height
⇒ area of one triangle = 1/2 x 30 x 40 = 600 m²
Area of a square = side length x side length
⇒ area of the square = 30 x 30 = 900 m²
Surface area of square-base pyramid = area of 4 triangles + area of square
⇒ SA = 4 × 600 + 900 = 2400 + 900 = 3300 m²
Someone help pls. It would mean a lot to me
Answer:
Step-by-step explanation:
What is the slope of the line that passes through the points (1, -2) and (3, -5)? A. B. C. D.
Hey there!
Use the slope formula:
[tex]\bold{\displaystyle\frac{y2-y1}{x2-x1} }[/tex]
[tex]\bold{\displaystyle\frac{-5-(-2)}{3-1}}[/tex]
-5-(-2) is the same as -5+2:
[tex]\bold{\displaystyle\frac{-5+2}{2} =\frac{-3}{2} }[/tex]
Hence, the slope of the given line is
[tex]\boxed{\boxed{\bold{-\frac{3}{2} }}}[/tex]
Hope everything is clear.
Let me know if you have any questions!
#KeepLearning
#NeverGiveUp
[tex]\tt{An~Amiable~Helper}[/tex]
The slope of the line that passes through the points (1, -2) and (3, -5) is -3/2.
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
We need to find slope of line passing through the points (1, -2) and (3, -5)
m= -5-(-2)/3-1
=-5+2/2
=-3/2
Hence, the slope of the line that passes through the points (1, -2) and (3, -5) is -3/2.
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Julisa had a coupon for 15% discount off the regular price of a pair of shoes at the stores. The regular price of the shoes she bought was $38.95. What was the discounted price of the shoes not including tax?
Answer:
33.10
Step-by-step explanation:
Hich would be a good statistical question Alexandra could have used to create the tally chart? How many people read three books in the last month? How many people read one or two books in the last month? Did you read in the last month? How many books did you read in the last month?
Incomplete questions. Here's the complete question:
Alexandra made a tally chart shown below. A 2-column table with 5 rows. Column 1 is labeled Books Read in the Last Month with entries 1, 2, 3, 4, 5. Column 2 is labeled Tally with entries 2, 5, 3, 1, 2.
Which would be a good statistical question based on the tally chart?
How many people read three books in the last month?How many people read one or two books in the last month?Did you read in the last month?How many books did you read in the last month?Answer:
How many books did you read in the last month?
Step-by-step explanation:
A tally chart is a numbering system used to quickly record data. It usually involves filling a chart with vertical dashes that represents the number of times an action or information is observed.
Therefore, by asking, "How many books did you read in the last month?", Alexandra would be able to get the answer by means of a tally chart which would show the number of times that action occurred.
Which exponential function is equivalent to the geometric sequence an
= 7.5 (3)(n-1);
Answer:
f(x)=3^x
Step-by-step explanation:
assuming the n-1 is the exponent,
f(x)=3^x
the -1 is removed due to a graph starting at 0
there were three apples , 1 mixed fruit, 2 grape, and 4 tropical fruit juice boxes in the cooler at the picnic. What is the probability that, when Jill reaches into the cooler to grab two juice boxes without replacing them, she grabs two that are grape?
Answer:
1/45 ≈ 0.022
Step-by-step explanation:
There are originally 10 juice boxes in the cooler, 2 of which are grape.
The probability that the first juice box is grape is 2/10.
The probability that the second juice box is grape is 1/9.
The probability of both is (2/10) (1/9) = 1/45 ≈ 0.022.
Y = 2x/a + 2b solve for b
Answer:
b = Y/2 - x/a
Step-by-step explanation:
A traffic helicopter descends 107 meters to be 407 meters above the ground, as illustrated in the diagram to the right. Write an equation to describe the situation using h as the original height of the helicopter. What was the original height of the helicopter?
Step-by-step explanation:
Its 514 because 107+407 is 514
Answer:
h = 514 meters
Step-by-step explanation:
If the helicopter descends 107 meters to then be 407 meters above the ground, then it was originally 107 meters above 407 meters.
h-107=407
add 107 to both sides
h = 107+407
h = 514