The number of minutes the water level would be less than or equal to 64 cups is t ≥ 158.33. option B, C, D
How many minutes would the water level be less than or equal to 64 cups?
The regression equation:
W = -0.414t + 129.549
Where,
t is the number of minutes and
W is the level of water.
When w ≤ 64
W ≤ -0.414t + 129.549
64 ≤ -0.414t + 129.549
Subtract 129.549 from both sides
64 - 129.549 ≤ -0.414t
-65.549 ≤ -0.414t
Divide both sides by -0.414
t ≥ -65.549 / -0.414
t ≥ 158.3309178743961
Approximately, t ≥ 158.33
Therefore, the water level would be less than or equal to 64 cups when t is greater than or equal to 158.33
Which polygon has the most sides?
Answer:
It has 20 regular triangular faces, 30 square faces, 12 regular pentagonal faces, 60 vertices, and 120 edges.
Step-by-step explanation:
hope this helped
solve the system by adding or subtracting:
-3x-3y=9
3x+8y=6
Answer:
x=-6, y=3
Step-by-step explanation:
I will use elimination to eliminate the x variable.
Add the two equations.
-3x-3y=9
3x+8y=6
-------------------
5y = 15
Divide each side by 5
5y/5 = 15/5
y=3
Now we need to find x
3x+8y=6
Substitute y=3
3x+8*3 =6
3x+24=6
Subtract 24 from each side
3x+24-24 = 6-24
3x = -18
Divide each side by 3
3x/3 = -18/3
x=-6
x < 4 and x > -3: I need this in interval notation please.
x > -3 and x < 4
in interval notation
[tex]x\in(-3,\ 4)[/tex]
>; < - a open circle on the number line and the parenthesis ( or )
≥; ≤ - a filled-in circle on the number line and the parenthesis [ or ]
how much higher is 500 than -400
Answer:
100
Step-by-step explanation:
I subtracted the 2 numbers
Answer:
900
Step-by-step explanation:
500 - (-400)=900
Fiona had $50 to go canoeing . She had to pay an $18 deposit in addition to the hourly rate of $10.50 per hour. Write and solve an inequality to find the greatest number of hours for which she could rent a canoe. Pls show work!
Answer:
3 hours
Step-by-step explanation:
$50-$18=$32
$32/$10.50=3.04761904762--->3 hours
Answer options are A,B,C. Please help ASAP!!
I think the answer is
1) B
2) C
3) A
hopes this helps ;)
please help. What is the value of x?
screenshot below
Answer:
25
Step-by-step explanation:
Since the triangle is equilateral, all the sides have the same measures.
You can set any two sides equal to each other, and solve for x.
4x-30 = 2x + 20
4x = 2x + 50 add 30 to both sides
2x = 50 subtract 2x from both sides
x = 25 divide both sides by 2
You can plug x into the expressions and compare the sides to make sure its correct.
Which is a disadvantage of using cash as a payment method? Accepted almost everywhere. Has no fees or interest. Must hand deliver all payments. Fraud is rare except occasional counterfeiting.
Answer:
i would say the last choice
The disadvantage of using cash as a payment method is the requirement to hand deliver all payments. This method is less convenient and secure compared to electronic payments, highlighting the shift towards a cashless society.
Explanation:The question asked is, "Which is a disadvantage of using cash as a payment method?" The correct answer to this question is that one must hand deliver all payments when using cash. This is a significant disadvantage compared to electronic forms of payment. In our increasingly digital world, methods like credit cards, online banking, and mobile payment platforms like Apple Pay introduced in 2014 offer the convenience of making payments from virtually anywhere without the need to physically handle currency.
This shift towards a cashless society highlights the limitations of cash transactions, especially in terms of convenience and security. Moreover, in scenarios such as paying bills, shopping for large purchases, or conducting business transactions, the logistical challenges of using cash become even more apparent. Electronic payments, on the other hand, allow for easier transaction tracking and less physical risk, making them more appealing for both consumers and businesses.
which of these numbers is composite?7,9,23,47,67
Answer:9 is the only one
Step-by-step explanation:
Don’t mind the writing. Just trying to see if this is right?
Answer:
Step-by-step explanation:
Yep you are 100% correct grate job!!
Which basic geometric term has exactly one dimension?
A. Point
B. Plane
C. Line
D. Angle
Answer: Option 'C' is correct.
Step-by-step explanation:
We need to find which has one dimension.
Since Point is undefined term with no size or dimension, but in two dimensional it is found in ordered pair i.e. (x,y)
Plane is also an undefined term with length and width but no thickness, so, it is two dimensional.
Angle is undefined term formed by tow lines or rays diverging from a common vertex, so it is two-dimensional.
But Line is also undefined term with length only but there is no width or thickness.
So, Line has exactly one dimension.
Hence, Option 'C' is correct.
solve equation for x
Question
solve equation for x
Answer:
-3/2Step-by-step explanation:
1/4 - 2/3x = 3/4 - 1/3x
1/4 - 3/4 = 2/3x - 1/3x
-2/4 = 1/3x
x = -2/4 : 1/3
x = -2/4 * 3
x = -6/4 semplified -3/2
1. 800 divided by 4
2. 4 divided by 800
3. 440 divided by 24
Please show work. I have to show my work
1. 800 divided by 4 equals 200.
2. 4 divided by 800 equals 0.005.
3. 440 divided by 24 equals 18 remainder 2, which can also be written as 18.2 as a decimal.
How did we get these values?Each division problem is solved below:
1. 800 divided by 4:
To divide 800 by 4, you divide the dividend (800) by the divisor (4):
200
-------
4 | 800
- 8
---
0
Therefore, 800 divided by 4 equals 200.
2. 4 divided by 800:
To divide 4 by 800, you divide the dividend (4) by the divisor (800):
0.005
----------
800 | 4.000
- 0
-----
4.000
Therefore, 4 divided by 800 equals 0.005.
3. 440 divided by 24:
To divide 440 by 24, you divide the dividend (440) by the divisor (24):
18
------
24 | 440
- 24
------
20
- 18
------
2
Therefore, 440 divided by 24 equals 18 remainder 2, which can also be written as 18.2 as a decimal.
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A model is created to show 5 thousands blocks, 4 hundreds blocks, and 9 ones blocks. How would this number be written in standard form?
Answer: 5,409
Step-by-step explanation: Five thousand blocks is equivalent to 5,000. Four hundred blocks is equivalent to 400. Nine ones is equivalent to 9. In standard form, this number is five thousand four hundred and nine (5,409).
I'm super confused... Can someone help me?
Answer:
Second choice
Step-by-step explanation:
Multiply numerator by numerator and denominator by denominator
(2a+10)a
a^2(a^2+2a-15)
Cancel a from a^2
(2a+10)
a(a^2+2a-15)
Factor: 5-3=2 and 5(-3)=-15. a^2+5a-3a-15=0. Group: a(a+5)-3(a+5)=(a-3)(a+5)
Factor: 2*a+2*5=2(a+5)
Cancel out (a+5)
2/(a(a-3))
gretchen made 189 cookies in 4.5 hours what was her rate in cookies per hour
Answer: 42 cookies/1 hour
Step-by-step explanation: Since Gretchen made 189 cookies in 4.5 hours, we set the equation up as 189/4.5. To get cookies per hour, we divide 189 by 4.5, which is 42/1. This means that Gretchen can make 42 cookies in 1 hour.
PLEASE HELP BRAINLIEST WILL BE GIVEN!!! Convert the following:
Round to the nearest hundredth
a) 7 miles to feet
b) 22 centimeter to inches
c) 6 gallons of water to ounces
Type your answer below:
if f(x)=x squared + 3x+5 what is f(a+h)
Answer:
a² + 2ah + 3a + 3h + 5 + h²
Step-by-step explanation:
to evaluate f(a + h) substitute x = a + h into f(x)
f(a + h)
= (a + h)² + 3(a + h) + 5 ← distribute
= a² + 2ah + h² + 3a + 3h + 5
43.017 round to the nearest hundredth
Answer:
43.02
Step-by-step explanation:
Note the hundredth place value (underlined and bolded): 43.017
Look at the place value directly to the right of the one you are solving for (thousandth place value). It is a 7. Because 7 is greater than 5, round up
43.017 rounded to the nearest hundredth is 43.02
~
Answer:
43.02
Step-by-step explanation:
tens ones. tenths hundredths thousandths
4 3 . 0 1 7
The one is in the hundredths place, so we need to look at the 7
7>= 5 so we need to round the 1 up to 2
43.017 rounds to 43.02
victoria invited 260 people to her quinceanera party. 76 guest rode in corvettes and the rest rode in 23 suburbans. how many guest rode in each suburban
Answer:
8 guest rode in each suburban .
Step-by-step explanation:
As given
victoria invited 260 people to her quinceanera party.
76 guest rode in corvettes and the rest rode in 23 suburbans.
As 76 guest rode in corvettes .
Thus
Number of guest rode in suburbans = 260 - 76
= 184 peoples
Let us assume that the number of guest rode in each suburban be x.
Total suburbans are 23.
Than the equation becomes
x × 23 = 184
[tex]x = \frac{184}{23}[/tex]
x = 8
Therefore 8 guest rode in each suburban .
Tom and Jack “power walk” towards each other at the same time. Tom’s walking speed is 2.3 m/s, Jack’s speed is 2.2 m/s. They meet each other 1.5 minutes after they started. How far apart were they to begin with?
Answer:405 meters apart. I think the m means meters, if it meant miles that would be incredible :)
Step-by-step explanation: 2.3 times 1.5 minutes is 90 seconds, so 2.3 times 90=207. 2.2 times 90 =198. 207+198=405
NO ONE CAN Answer this!!!
Jaylan makes limeade using 3/4 cup water for every 1/5 cup of lime juice. Wanchen makes limeade using 2/3 cup of water for every 1/6 cup lime juice. Find the unit rates of water (cups) per lime juice. Whose limeade has a weaker lime flavor? Explain.
Jaylan : Water/Juice=(3/4)/(1/5)=15/4
Wanchen : Water/Juice=(2/3)/(1/6)=4/1 or 16/4
Wanchen has a weaker lime flavor because there is more water in her mixture than Jaylan's limeade. Both have the same amount of lime juice (assuming ratio), and Wanchen has more water, making Wanchen have the limeade that has the weaker lime flavor.
A party-favor bag must have a volume of 140 cubic inches and the dimensions that are shown below. The equation x3+6x2 can be used to find x. What are the dimensions of the party-favor bag? Use a graphing calculator and a system of equations to find the answer.
Answer:
[tex]x=3.783[/tex]
Step-by-step explanation:
We are given equation of volume
[tex]V=x^3+6x^2[/tex]
now, we can are given
volume is 140 in^3
we can set 140
and then we can solve for x
[tex]x^3+6x^2=140[/tex]
so, we can draw graph of these two functions
[tex]y=x^3+6x^2[/tex]
[tex]y=140[/tex]
and then we can find intersection point
we can see that intersection point is (3.783,140)
so,
[tex]x=3.783[/tex]
Answer:
The length is 5 inches, the width is 2 inches, and the height is 14 inches.
Step-by-step explanation:
Zoe babysat for x+3 hours yesterday.she earned x-2 dollars per hour.write a polynomial expression that represents the amount Zoe earned
Answer:
y=3x+2
Step-by-step explanation:
The total amount Zoe earned from babysitting is represented by the polynomial expression (x + 3) * (x - 2), which expands to [tex]x^2+x-6[/tex]
Explanation:To find the total amount that Zoe earned, it is necessary to multiply the time she worked by how much she earned per hour. Zoe worked for x + 3 hours yesterday and earned x - 2 dollars per hour. Therefore, the polynomial expression to represent the total amount she earned is (x + 3) * (x - 2). This can be expanded by using the distributive property, to give the polynomial: [tex]x^2[/tex] + x - 6.
So, the amount Zoe earned can be represented by the polynomial expression [tex](x+3)*(x+2)[/tex]
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Use what you know about the sum of the angles in a triangle together with the properties of supplementary angles to calculate the missing angles in the figure below.
Answer:
a = 35°; b = 50°; c = 85°; d = 30°
Step-by-step explanation:
a = 35° because a + 80 + 65 = 180.
b = 50° because b+ 35 + 95 = 180.
c = 85° because c + 95 = 180.
d = 30° because d + 85 + 65 = 180.
If Carlos ran 3 miles in 21 minutes, how long did it take him to run 1 mile?
Answer:
7 minutes
Step-by-step explanation:
you have to set up a proportion
Which set represents a pythagorean triple
A) 1, 2, 3
B) 9, 12, 16
C)30, 40, 50
D)38, 44, 49
Please help!
Answer:
30, 40, 50 which is choice C
Step-by-step explanation:
Square the smaller two values (30 and 40)
30^2 = 900
40^2 = 1600
then add those results
900+1600 = 2500
Notice how 50^2 = 2500 as well. This shows us that 30^2 + 40^2 = 50^2 is a true equation. Both sides lead to the same result 2500. Therefore, a triangle with sides 30, 40, 50 is a right triangle. This is based on the 3-4-5 pythagorean triple, just each side has been multiplied by 10.
The set that represents a Pythagorean triple is 30, 40, 50. Hence, the correct option is C.
Pythagorean triples are sets of three numbers that satisfy the Pythagorean theorem, a² + b² = c², where a, b, and c are the lengths of the sides of a right triangle. To determine which set represents a Pythagorean triple, we need to check if the set's numbers satisfy this theorem.
Looking at the options:
A) 1, 2, 3 does not form a Pythagorean triple.
B) 9, 12, 16 does not form a Pythagorean triple.
C) 30, 40, 50 does form a Pythagorean triple because 30² + 40² = 900 + 1600 = 2500 = 50².
D) 38, 44, 49 does not form a Pythagorean triple.
Therefore, the set that represents a Pythagorean triple is C) 30, 40, 50.
the amusement park also has water rides 30% of the 80 rides are water-related how many water-related rides does the park have
Answer:
24.
Step-by-step explanation:
So you need to fine 30% of 80.
I did the following method:
-Break it down, and do, 80 -/- 10 which is 8, now you have 10%, and you need to find 30, times your 10% by 3, so 24.
-Therefore, 24 out of 80 rides at the amusement park are water-related.
Hope this helps!
--Emilie Xx
By using the percentage given, we can calculate that there are 24 water-related rides at the amusement park out of the total 80 rides.
Explanation:The question is asking how many of the total rides at the amusement park are water-related. This is a problem related to percentage. We know that 30% of the park's 80 rides are water-related. To find out the exact number, we multiply the total number of rides (80) by the percentage of water rides (30%), but since percentage is in terms of 100, we first convert the 30% to a decimal by dividing it by 100. This gives us 0.30. We then multiply 80 (the total number of rides) by 0.30.
Here's the calculation: 80 rides * 0.30 = 24 rides.
So, there are 24 water-related rides at the amusement park.
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Another one
Find the value
Answer:
x=8
Step-by-step explanation:
15+x = 23
Subtract 15 from each side
15-15 +x = 23-15
x = 8
The Rawlins family has travelled 600 km on their vacation. This has taken them 8 hours. If they continued at the same rate, how long will it take them to complete their journey if the total distance to be travelled is 2100 km?
A. 20 hours
B. 28 hours
C. 26 hours
D. 12 hours
Answer:
B. 28 hours
Step-by-step explanation:
GIVEN :- Time taken by family to travel 600 km is 8 hours
CALCULATIONS :-
To calculate the time to travel 2100 km, we need to calculate distance traveled in 1 hour
Distance traveled in 1 hour = 600 km ÷ 8
= 75 km
Time required to travel 2100 km = 2100 ÷ 75
= 28 hours
Therefore time required to travel 2100 km is 28 hours.
Final answer:
The Rawlins family, traveling at a speed of 75 km/hour, will take a total of 28 hours
Explanation:
To determine the travel time for the remaining distance of the Rawlins family's journey, we use the formula
time = distance / speed. First, we need to find the family's speed during their trip. They have travelled 600 km in 8 hours, so their speed is
600 km / 8 hours = 75 km/hour.
Next, we calculate the time it would take to travel the total distance of 2100 km at this speed. So,
time = 2100 km / 75 km/hour. Upon performing the calculation, we get 28 hours. Therefore, if they continue at the same speed, the total travel time for the entire journey would be 28 hours.