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Work Shown:
t = time it takes to go from Jackie's house to her friends house
distance = rate*time
d = 30*t
This represents the distance they travel if they go 30 mph
Then when going back home, they take 6 minutes longer
6 minutes = 6/60 = 0.1 hours
So they take 0.1 hours longer meaning the t updates to t+0.1
d = r*t
d = 25*(t+0.1)
d = 25t+2.5
This represents the trip back home.
Since the distance d doesn't change, we can equate the two right hand sides and solve for t
30t = 25t+2.5
30t-25t = 2.5
5t = 2.5
t = 2.5/5
t = 0.5 hours = 30 minutes
d = 30t = 30*0.5 = 15 miles
WILL MARK YOU BRAINLIEST!!!!!!
Answer:
a b d e
Step-by-step explanation:
yes its correct
geometry help pls right triangles i’ll mark brainlist
Heeeeeeeeelp pls I need help
Answer:
I am pretty sure that is is 64
Step-by-step explanation:
but i used a calculator soooo
Use the coordinates of the labeled point to find a point-slope equation of the line
Answer:
The answer would be C.
Answer:
c
Step-by-step explanation:
For each set of angle measurements, determine if they would form a triangle (Answer YES or NO for
each)
1. 120, 50, 10
2. 100, 91. 25
3. 90, 60, 30
4. 77, 54, 49
5. 177. 2,1
Answer:
1. yes
2. no
3. yes
4. yes
5. yes
Step-by-step explanation:
All triangles have 3 angle measurements that add up to 180
I did these all mentally so do double check :)
Given m||n, find the value of x.
Answer:
27 degrees
Step-by-step explanation:
the 27 degrees
Answer:
27°
Step-by-step explanation:
X and 27° are both alternate interior angles (on opposite sides of the transversal, between the two parallel lines), which makes them congruent! So they are both 27°.
ASAP
Factor Completely
-3x^2+6x+9=
Answer:
3(−x−1)(x−3)
Step-by-step explanation:
The mean temperature for the first 4 days in January was -12°C.
The mean temperature for the first 5 days in January was -13°C.
What was the temperature on the 5th day?
Answer:
-17Step-by-step explanation:
Given
The mean temperature for the first 4 days = -12°CThe mean temperature for the first 5 days = -13°CTo find
The temperature on the 5th daySolution
Total of 4 days = 4*(-12) = -48°CTotal of 5 days = 5*(-13) = -65°CThe difference is the temperature on the 5th day:
-65 - (-48) = -17°CAnswer:
-17
Step-by-step explanation:
Given
The mean temperature for the first 4 days = -12°C
The mean temperature for the first 5 days = -13°C
To find
The temperature on the 5th day
Solution
Total of 4 days = 4*(-12) = -48°C
Total of 5 days = 5*(-13) = -65°C
The difference is the temperature on the 5th day:
-65 - (-48) = -17°C
A line is represented by the equation y=3x+5. what are the coordinates
NEED HELP ASAP
SOLVE FOR V
ryv-tu=w
Answer:
v= w/ry+tu/ry
Step-by-step explanation: Isolate the variable then Divide each side by the factors that don't contain the variable.
what expression is equivalent to -0.2-4.9?
PLSSSS HELP can someone show me how would this look on a graph f(x)=−3[x+2] I need all the points
Answer:
hope this helps :)
Step-by-step explanation:
Jose and his mother decide to bake a cake for his Father's birthday. Jose notices that after mixing the cake batter and placing it in the oven he says bubbles forming in the cake as it begins to rise. What explains this Phenomenon? A. Physical Change B. Chemical Change C. Neither physical nor chemical change D. Both physical and chemical change
Answer:
B) Chemical Change
Step-by-step explanation:
Physical change only changes the physical appearance of good, their chemical properties remaining same. These are usually reversible. Eg : Cutting a cake
Chemical change changes the physical composition of the product(s) involved. These are usually not irreversible. Eg : Baking of a cake, getting bubbles during bake process meanwhile
Two window washers start at the heights shown. One is rising, the other is descending. How long does it take for the two window washers to reach the same height? Explain.
21 ft high
rising 8 in./s
50 ft high
descending 11 in./s
After t seconds, the height of the rising window washer is exactly
nothing feet, and the height of the descending window washer is exactly
nothing feet. Setting these expressions equal to each other and solving for t yields the exact value t
nothing. Rounding to one decimal place, the window washers reach the same height after about
nothing seconds.
(Simplify your answers.)
Answer: 18.32secs
Step-by-step explanation:
given data:
first washer
21 ft high
rising 8 in./s
second washer
50 ft high
descending 11 in./s
Solution:
initial height of first washer = 21 feet
1feet = 12inches
21 * 12 = 252inches
decending at a pace of 8inch/secs
= 252 + 8x
initial height of second washer
= 50 feet
= 50 * 12
= 600inches
descending at a pace of 11inch/secs
= 600 + 11x
At what time would they meet
252 + 8x = 600 + 11x
collect like terms
8x + 11x = 600 – 252
19x = 348
divide both sides by 19
19x/19 = 348/19
x = 18.32secs
Melanie had 3 pounds of dried fruit. She packed the dried fruit into bags of 3/8 pound each. How many bags of dry fruit does she pack?
Answer: 8 bags
Step-by-step explanation:
From the question, we are informed that Melanie had 3 pounds of dried fruit and that she packed the dried fruit into bags of 3/8 pound each.
For us to get the number of bags of dry fruit does she will pack, we have to divide 3 pounds by 3/8 pounds. This will be:
= 3 ÷ (3/8)
= 3 × (8/3)
= 8
Therefore, she will pack 8 bags of dried fruit.
A baker used 8 bags of flour every 9 days. He used
of a bag cach day
L20 nens in 5 seconds What is the rate
Answer:
0.8 repeating or 8/9 bags a day
Step-by-step explanation:
The original car price is p The total price is $22,480
Answer:
22,480
Step-by-step explanation:
dollar money economy and I was boutta say things the same thing as the among us?
Find the value for x that makes the given equation true. - -4(3x – 7) + 5x = -2x + 8
Answer:
Okay this might be slightly confusing but I'll try to make it simple. x = -10
Step-by-step explanation:
-4 ( 3x - 7 ) + 5x = -2x + 8 1. get rid of parenthesis first. -4 times 3x = -12x and -4 times -7 is 28
-12x + 28 + 5x = -2x + 8 2. Combine any like terms on each side of the equation. -7x + 28 = -2x + 8 3. Get rid of the smallest x value by adding to both sides -7x
+7x +7x
28 = -2x + 8 4. subtract 8 from both sides to get rid of it. (you wanna get x alone)
-8 -8
20 = -2x 5. Divide both sides by -2 to get 1x (which is x)
/-2 /-2
x = -10
Which of the following graphs is the solution set of -10 < 3x - 4 < 8?
Answer:
Its the first one . A
Step-by-step explanation:
The solution set for the given inequality is {-1, 0, 1, 2, 3}. Therefore, option A is the correct answer.
What are inequalities?Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
The given inequality is -10<3x-4<8.
Now, -10<3x-4
Add 4 on both the sides of an inequality, we get
-6<3x
-2<x
Now, 3x-4<8
Add 4 on both the sides of an inequality, we get
3x<12
x<4
-2<x<4
Solution set is {-1, 0, 1, 2, 3}
Therefore, option A is the correct answer.
To learn more about the inequalities visit:
https://brainly.com/question/20383699.
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Which one?
A. B. C. or D?
Answer:
B
Step-by-step explanation:
(7m+5m^3)-3m-4m^3
we simplify to get
4m+m^3 which can be rearranged
m^3+4m
How many terms are in the expression below?
4xy + 3y - 2+ 2y - xy
Answer:
3
Step-by-step explanation:
you have the single numalrial term, you have the x terms, and the y terms
Lea received a tip of $8 on a restaurant tab of $20. What percent tip did
she receive?
Answer:
40% tip
Step-by-step explanation:
If $20 is 1/5 of $100 and that $8 tip is part of those $20 you just have to multiply by five and thats your answer
Joey wants to save up enough money to buy a new baseball bat that costs $200. He already has $50. If Joey makes $40 per week, write an inequality that represents the number of weeks (w) until he will have enough money?
Answer:
50+40w=200
Step-by-step explanation:
200-50=150
150 divided by 40=3.75 so 3 1/2 weeks
reciprocal of the fraction 3/7 is
Answer:
A simple example - the reciprocal fraction of 3/7 is 7/3. As you can see, a reciprocal of a fraction is just flipping the numerator and denominator.
Step-by-step explanation:
Answer:
7/3
Step-by-step explanation:
reciprocal, refliprical is a great way to remember how to solve. You just flip the fraction.
5 less than 3.1 times a number n plz help me
Answer:
-2.1 i guess
Step-by-step explanation:3.1 minus 5 =-2.1
The required expression will be x = 3.1 n - 5
It is given that a number is 5 less than 3.1 times a number "n" .
We have to find the expression for the given statement.
What is algebra ?
Algebra is the branch that deals with various symbols and the arithmetic operations such as multiplication , division , etc.
Let's assume the number be x.
So ,
3.1 times of number n = 3.1 × n = 3.1 n
Let's subtract 5 from the above number, i.e.,
3.1 n - 5
and , the required expression will be ;
x = 3.1 n - 5
Thus , the required expression will be x = 3.1 n - 5
To learn more about algebra click here ;
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John needs to take a cab uptown and only has y dollars. The cab company charges a flat fee of $2.25 plus $0.55 per mile. If John has $12.52 and he finds a cab with the same flat fee that only charges $0.45 per miles, what is the maximum number of miles he will be able to travel, t the nearest tenth of a mile?
Answer:
Maximum distance covered by John = 22.8 miles
Step-by-step explanation:
The cab company charges a flat fee of $2.25 plus $0.55 per mile.
Amount of money John has = $y
Let the number of miles traveled in $y = x miles
If John finds a cab charging same fee and $0.45 per mile,
y ≤ 2.25 + 0.45x
y - 2.25 ≤ 0.45x
[tex]x\leq \frac{(y-2.25)}{0.45}[/tex]
Therefore, inequality representing the maximum distance covered by John,
[tex]x\leq \frac{(y-2.25)}{0.45}[/tex]
If, y = $12.52
[tex]x\leq \frac{(12.52-2.25)}{0.45}[/tex]
x ≤ 22.8 miles
Therefore, John will be able to travel the maximum distance = 22.8 miles.
Answer:
x ≤ 22.8 miles
John will be able to travel the maximum distance of 22.8 miles.
Step-by-step explanation:
I hope this helps
PLEASE HELP ME, IVE BEEN IGNORED FOR THE PAST 30 MINUTES AND THE ONLY PEOPLE WHO DO ANSWER ARE FAKE PEOPLE WITH WRONG ANSWERS. (IMAGE IN THE QUESTION)
Given the data in the table, complete the sentence.
Using a line of best fit for this data to predict the value of y when x = 10 is an example of
A. Interpolation
B. Extrapolation
C. Correlation
D. Causation
Answer:
isnt that extrapolation?
Step-by-step explanation:
HELP PLS (picture below)
C
Because it will equal 5,260 but all the other are bigger
Which table represents the same relation as the set StartSet (negative 6, 4), (negative 4, 0), (negative 3, 2), (negative 1, 2) EndSet?
A 2-column table has 4 rows. The first column is labeled x with entries negative 6, 4, negative 4, 0. The second column is labeled y with entries negative 3, 2, negative 1, 2.
A 2-column table has 4 rows. The first column is labeled x with entries negative negative 6, negative 4, negative 3, negative 1. The second column is labeled y with entries 4, 0, 2, 2.
A 2-column table has 4 rows. The first column is labeled x with entries 6, 4, 3, 1. The second column is labeled y with entries negative 6, negative 4, negative 3, negative 1.
A 2-column table has 4 rows. The first column is labeled x with entries negative 4, 0, 2, 2. The second column is labeled y with entries negative 6, negative 4, negative 3, negative 1.
9514 1404 393
Answer:
A 2-column table has 4 rows. The first column is labeled x with entries negative negative 6, negative 4, negative 3, negative 1. The second column is labeled y with entries 4, 0, 2, 2.
Step-by-step explanation:
If you write the given ordered pairs in a column, you see what the table must look like:
[tex]\begin{array}{cc}\underline{x}&\underline{y}\\-6&4\\-4&0\\-3&2\\-1&2\end{array}[/tex]
Answer:
B
Step-by-step explanation:
edge2021
What are the possible values of x and y for two distinct points, (5,-2) and (x, y), to represent a function?
The value of x can be ____
The value of y can be ____
(any real number, any real number except 5, any real number except 5 and -2)
Answer:
3, 0
Step-by-step explanation:
Subtract 2.
5 - 3 = 2.
-2 - 2 = 0
Answer:
The value of x can be
✔ any real number except 5
The value of y can be
✔ any real number
.Step-by-step explanation: