Answer:
a or b is a right answer
Step-by-step explanation:
seven and one twentieth
eight and three twentieth
Javier walks up to a tank of water that can hold up to 10 gallons. When it is active, a drain empties water from the tank at a constant rate. When Javier first sees the tank, it contains 7 gallons of water. Three minutes later, the tank contains 5 gallons of water.
At what rate is the amount of water in the tank changing? Use a signed number, and include the unit of measurement in your answer.
How many more minutes will it take for the tank to drain completely? Explain or show your reasoning.
How many minutes before Javier arrived was the water tank completely full? Explain or show your reasoning.
1) Gallons per minute change is -2/3 gallons per minute since it decreases by 2 gallons in 3 minutes
2) we have 5 gallons and lose 2/3 gallons per minute
(2/3 gal/minute)(x minutes) = 5 gallons
x = 5(3/2) = 15/2 = 7.5 minutes to drain the other 5 gallons
3) There were 10 gallons when the tank is full
That is 3 gallons more than the 7 gals there when Jada arrived.
(2/3)(x) = 3
x = 3(3/2) = 9/2 = 4 1/2 minutes
The tank was full 4 1/2 minutes before Jada arrived
please help me with this math problem who ever does first gets 100 points
Answer:
[tex]-\frac{4}{15}[/tex]
Step-by-step explanation:
[tex]\frac{-3}{5} +\frac{1}{3}[/tex]
[tex]\frac{-9}{15} +\frac{5}{15}[/tex]
[tex]\frac{-9+5}{15}[/tex]
[tex]\frac{-4}{15}[/tex]
Answer:
[tex] \displaystyle{ - \frac{3}{5} + \frac{1}{3} }[/tex]
LCM of 5 and 3=15.So,
[tex] \displaystyle \: \frac{-3 \times 3 + 1 \times 5}{15} [/tex]
[tex]\displaystyle \frac{-9 + 3}{15} [/tex]
[tex] \displaystyle \frac{-4}{15} [/tex]
1. 4x + 3(x-9) = 19
2. 2(x-4) + 5x = 3
3. 60 = 8y - 3(y-10)
4. 40 + 3c = 3 + 9(c-2)
Answer:
Step-by-step explanation:
1. 46/7 or 6 4/7 or 6.57
2. 11/7 or 1 4/7 or 1.57
3. 6
4. 55/6 or 9 1/6 or 9.16
Mr. Lockwood likes to garden. In his garden, he has already 5 potatoes and he grows 2 more every year. He also already had 20 tomatoes to start with, but for some reason he loses 3 each year. When will he have the same amount of potatoes and tomatoes? How many of each will he have at the time he has the same amount? Write and equation to represent both vegetables.
Answer:
potatoes: y=2x+5 tomatoes: y=(-3)+20
Explanation:
y=mx+b
m=slope
b=y-intercept
Each cube in the prism is one cubic unit.
What is the volume of this rectangular prism?
Answer:
90 units, the reason for this is because the front of the cub has 30 units, and the side of the cube has three row, so you multiply 30 by 3 to get 90
A poster is shown below:
What are the dimensions if the poster is enlarged by a factor of 3/2?
A). 12 ft by 30 ft
B). 2 ft by 5 ft
C). 6 ft by 15 ft
D). 5 ft by 12 ft
Answer:
The enlarged length is (3/2)*10 ft = 15 ft.
The enlarged width is (3/2)*4 ft = 6 ft.
The dimensions of the enlarged poster are ...
6 ft by 15 ft
Answer:
C 6 ft by 15 ft
Step-by-step explanation:
A lil help please…
Q: Note: enter your answer and show all the steps that you use to solve this problem in the space provided.
Calculate the area of the trapezoid, which is not drawn to scale.
Answer:
38
Step-by-step explanation:
first do area of triangle 1/2 * 3 * 4 = 6
next do area of rectangle 8 * 4 = 32
add the 2 numbers 32 + 6 = 38
hope this helps!
Answer these 2? PLEASEEEEEE
Answer: Q. 5 6x+6y
Q. 6 2/15m - 4n
Step-by-step explanation:
First combining the y's.... Then the x's
5y-2y=3y 7x+3x=10x
3y+3y=6y 10x-4x=6x
Q.6 explanation is kinda long....sry..lol... you just add like terms and find a common denominator for the fractions.....then just put the terms together.....Hope it helps!!!
Help me with this (who ever gets it correct gets brainlest)
Answer:
Bottom left
Step-by-step explanation:
..........
Answer:
Its the bottom left
Step-by-step explanation:
Hi could someone help solve this
Complete the expressions using the distributive property.
10(2y + 3)= __y + __
6(5y − 5)= __y + (__)
−3(10y−3)= __ y + __
Answer:
20y+30
30y+(-30)
-30y+9
Daniel expanded the expression as shown. What errors did he make? Select three options.
-2(-8x-4y+3/4)=-10x-8y-1 1/4
A. The first term should be positive.
B. The second term should be positive.
C.The last term should be -1 1/2, not -1 1/4.
D. He divided -8 by -2 instead of multiplying -8 by -2.
E. He did not simplify the expression completely.
Each row. column and square can contain each number 1-9 exactly once. the squares that contain letters match with the system of equations to solve
please help me with all of them
Answer:
A. (5,4)
B. (6,-4)
C. (-5,3)
D. (8,12)
E. (3/2,6)
F.(405/19,1601/19)
G.(9,2/3)
H. (7, -3/2)
I. (-6,5)
Step-by-step explanation:
For all of these you are going to solve one of the equations for one of the variables. A lot of them are already solved (One equation has the variable already equal to the other side like B has -2x+8=y.
Then you are going to take that value and substitute it into the other equations.
Once you get the answer for that variable, plug the answer into the other formula and solve.
Finally, check your answers by plugging both variables into the formula.
For example A,
You already have one of the equations solved so you would plug in 3x-11 for y in the bottom equation to get 2x-3(3x-11)=-2
Now distribute and solve 2x-9x+33=-2
2x-9x=-7x and -2-33=-35
Divide both sides by -7
x=5
Now plug 5 into the first equation of y=3x-11 and solve to get y=3(5)-11=15-11=4
Finally, check your work by plugging your numbers into the first equation you worked with 2(5)-3(4)=-2. 10-12=-2. -2=-2
Repeat the steps above for the rest of the problems
A triangle is shown. The table names different transformations that can be applied to the triangle.
Drag a graph to each spot in the table to show where the triangle moves after each transformation is applied.
On a coordinate plane, a triangle has points (4, 4), (8, 4), (6, 6).
CLEAR CHECK
Transformation
First, reflect across the x-axis.
Then, reflect across the y-axis.
First, rotate 180° counterclockwise around the origin.
Then, reflect across the x-axis.
First, translate 9 units to the left.
Then, reflect across the x-axis.
Figure
this would be a reflection
Step-by-step explanation:
I know this because reflections are like this
1) over the x axis- change the y
2) over y axis - change sign on x
3) flip over a line of reflection
The given transformations are rigid transformation in which the image
can be located by a formula.
Response:
First reflect across the x-axis then reflect across the y-axis
Figure: Second graphFirst, rotate 180° counterclockwise around the origin. Then reflect across the x-axis.
Figure: Third graphFirst translate 9 units to the left. Then reflect across the x-axis
Figure: First graphWhich method is used to determine the transformation of an image?The coordinates of (x, y) following a reflection across the x-axis is (x, -y)
The coordinates following a reflection across the y-axis is (-x, y)
The points of the triangle following the first transformation is therefore;
(4, 4) → (4, -4) → (-4, -4)
(8, 4) → (8, -4) → (-8, -4)
(6, 6) → (6, -6) → (-6, -6)
The image from the first transformation is (-4, -4), (-8, -4), (-6, -6), which
corresponds to the second graph.
The coordinates following a rotation of (x, y) by 180° about the origin is (-x, -y)
A reflection of the point (-x, -y) about the x-axis is (-x, y).
Therefore;
(4, 4) → (-4, -4) → (-4, 4)
(8, 4) → (-8, -4) → (-8, 4)
(6, 6) → (-6, -6) → (-6, 6)
The image from the second transformation is (-4, 4), (-8, 4), (-6, 6), which corresponds to the third graph.
The coordinates following a translation of 9 units to the left is (x - 9, y)
A reflection of the point (x - 9, y) about the x-axis is (x - 9, -y)
Therefore;
(4, 4) → (4 - 9, -4) = (-5, -4)
(8, 4) → (8 - 9, -4) = (-1, -4)
(6, 6) → (6 - 9, -6) → (-3, -6)
The image from the third transformation is (-13, -9), (-1, -4), (-7, -6), which corresponds to the first graph.
Learn more about rigid transformations here:
https://brainly.com/question/11408409
For which system of equations would you need to estimate the solution?
Answer: it would be the orange line going up
Step-by-step explanation:
HELP PLEASE PLEASE
ILL DO ANYTHING
Answer:
it’s double
Step-by-step explanation:
Needing help with this question
(Angles) Just 3 problems
Answer:
First attachment:
Angle Q and Angle S measure 61°
Second attachment:
Angle A measures 60°
Angle B and Angle D are congruent and measure 90°
Angle C measures 39°
Angle E measures 51°
Third attachment:
a. 3x+51=180, x=43
b. Angle 1 measures 129° and Angle 2 measures 51°
Step-by-step explanation:
First attachment:
If a triangle measures 180°, then you can subtract 58 from 180, then divide the answer by 2 to figure out the degree measure of Angle Q and Angle S because they both have the same measure.
180-58=122
122/2=61°
Second attachment:
Angle A has an angle to the right that measures 125°. If a straight angle measures 180°, then you can subtract 125 from 180 to find the measure of Angle A (60°).
Angle B and Angle D are opposite interior angles, so they are congruent. After finding the measure of Angle E, we can subtract the measure of Angle E and the third angle of the triangle (that is shown to measure 39°) from 180° to determine the measure of Angle D and Angle B. (You can do the same method to Triangle ABC to find the measure of angle B). After determining that Angle E measures 51°, you can determine that Angles B and D measure 90°.
Angle C measures 39° because Angle C and the angle that measures 39° are vertical angles, and therefore, are congruent.
Angle E has an angle to the right that measures 129°. If a straight angle measures 180°, then you can subtract 129 from 180 to find the measure of Angle E (51°).
Third attachment:
If the two angles are supplementary, then they add up to 180°.
a. Taking that into consideration, 3x (Angle 1) + 51 (Angle 2) = 180°
To solve for x, subtract 51 from both sides
3x+51=180°
-51 -51
3x=129
Then divide 3x from both sides
3x/3=129/3
x=43
b. Angle 2 (51°) is already given, but you need to find out the measure of Angle 1. To find the measure of Angle 1, plug your x value into 3x.
3(43)=129°
Angle 1 = 129°
Hope This Helps!
Need Help Quick! (Fractions)
Please answer with the calculations for each answer.
Answer: A and D
Step-by-step explanation: You multiply the both the numerator and the denominator and then you simplify
Arrange the numbers in decreasing order.
76.342
76.332
76.232
76.343
Answer:
76.43, 76.42, 76.32, 76.32
Step-by-step explanation:
its kinda but if you can help that would be good
for 30 days of work, a worker was supposed to be paid $900 in cash and check for a fixed amount. On the 3rd day, the worker quit the job and was paid by only the check. What dollar amount did the worker get
Answer:
$90
Step-by-step explanation:
please factor ~
2(33yd + (5x - 1)yd)
you have to solve first and then factor
Answer:
the answer is 56 yards
Step-by-step explanation:
hope dis help
Hey man, you should help me out ◉‿◉
(DON'T SKIP)
Answer:
1. y is dependent
x is independent
2. y=64x+0
4. 64*5=320
5. 128= d(2)
d =128/2
d=64 miles per hour
6. 6.25
400/64 = 25/4
25/4 = 24/4+1/4
6.25 hours
Step-by-step explanation:
A warehouse contains 55 boxes. Then a truck delivers a number of boxes at 12:00 p.m. and the team begins to unload them immediately. By 3:00 p.m., the ware house contains 90 boxes. Suppose the boxes are unloaded at a constant rate. How many boxes are in the warehouse when the truck is finally empty at 8:30 p.m.?
Answer:
i believe the answer to this is 145
Step-by-step explanation:
i added 90 to 55 and that is what i got so i believe its correct
Please help
Also the question with the triangle is
Which figures appear to be congruent?
Answer:
[tex]24552246 + y12 \sqrt[x {)}^{2} ]{?} \times \frac{?}{?} [/tex]
how do you write 0.4% as a fraction or mixed number in the simplest form? this is for 6 grade
Answer:
0.004 or 1/250
Step-by-step explanation:
0.4/100=0.004
0.004=1/250
Someone help me please. I will mark as the brainliest if it is correct
Answer: C cus it’s the line goes through -2 and -3
Step-by-step explanation:
Which circle graph accurately describes the information in the tally chart?
Answer:
D
Step-by-step explanation:
Cause the people with more than 30 mins take up 50% of the pie chart your welcome can i get brainlest i need 4 more
i will give you 20 points if u answer this :Find the perimeter of the triangle whose vertices are (−4,−3), (4,3), and (−4,18). Write the exact answer. Do not round.
Answer:
23.558
Step-by-step explanation:
may i have brainliest
Answer:
23.558
Step-by-step explanation:
If you look it up you might be able to find. If you find a special calculator you could also calculate all of this.