A tank that holds up 10 gallons. when its active, a drain empties water from the tank at a constant rate, when Jada first see the tank, it contains 7 gallons of water. three minute later the tank contains five gallons of water.
At what constant/rate is the amount of water changing in the tank?
Answer:
-2/3 gallon/minute
Step-by-step explanation:
In three minutes the water volume has decreased by 2 gallons (7 less 5 is 2). The unit rate of decrease of the amount of water in the tank is thus:
- 2 gallons
------------------- = -2/3 gallon/minute
3 minutes
To compute the perimeter of a rectangle, you add the length, l , and width, w , and double this sum.
This means you can find the perimeter of a rectangle by evaluating the expression 2 (1 + w ).
Use this expression to find the perimeter of a rectangle with length 30 and width 75.
210 (A)
135 (B)
180 (C)
107 (D)
Answer:
210 (A)Step-by-step explanation:
Use the formula:
P = 2(l + w)Substitute the values and find P:
P = 2(30 +75) = 2(105) = 210Correct choice is A
Answer:
given length [l]=30
width[w]=75
perimeter= 2 (l + w )=2(30+75)=210
so
answer is A.210
Order the following from LEAST to GREATEST: -0.9, -4/5, -1/4, -1/2, -7/10
-0.9, -4/5, -7/10, -1/2, -1/4
Answer:
The answer is -0.9, -4/5, -7/10, -1/2, -1/4.
Step-by-step explanation:
-4/5 = -0.80
-7/10 = -0.7
-1/2 = -0.5
-1/4 = -0.25
How much higher is the average cost at a clinic
than the average cost at a shelter?
Answer: the answer is 50
Step-by-step explanation: I got it right in the quiz
Answer:
50
Step-by-step explanation:
2 (a - 5) - 5 = 3
Marking brainliest
Answer:
9
Step-by-step explanation:
2a-10-15=3
2a=18
a=9
hope you get the explanation
Answer:
a = 9
Step-by-step explanation:
2(a-5)-5=3
2a-10-5=3
2a-15=3
2a=18
a=9
Will mark brainliest has to be correct.
i need help with my math homework can someone help
Answer:
okay
Step-by-step explanation:
How do I find x in this problem?
Answer:
125
Step-by-step explanation:
Since its a hexagon the interior angles equal to 720 degrees.
Because (n-2)180 equals the number of sides. So, (6-2)180 = 720.
Now for x,
120 + 130 + 100 + x + 135 + 110 = 720
595 + x = 720
x = 125
WOWOWOWOWLWLWLWKWKWKWKWLWL
Answer:
chicken nugget
Step-by-step explanation:
gallon of gas: $2.15, 15% markup
What is the mean of the data set?
29, 26, 35, 34
the mean of that set is 31
Answer:
31
Step-by-step explanation:
Add all the numbers:
29 + 26 + 35 + 34 = 124
Divide by 4 (because there are 4 total numbers):
124/4 = 31
Find the measure of the missing angles. Need help ASAP
Answer:
I don't see the photo. Can't help OOF
Step-by-step explanation:
4(3m+9-7)
I need help plz
Answer:
12m+8
12m+36-28
6x-y=1 convert the standard form to a slope intercept.
Answer:
y= 6x-1
Step-by-step explanation:
6x-y=1
-y= -6x+1 (move x over to the right side)
y= 6x-1 (divide both sides by -1)
Name a plane that contains AC.
plane RCA
plane WRT
plane ACR
plane WCT
It would be defi
Step-by-step explanation:
I think it definetly would be acr
-x+y = 5
x - 5y = -9
Solve by elimination
Y and x
Answer:
x = -4 and y = 1
Step-by-step explanation:
-x + y = 5
+ x - 5y = -9 <— let’s eliminate x
————————————-
-4y = -4
y = 1
x - 5y = -9 <— substitute for y
x - 5(1) = -9
x - 5 = -9
+5 = +5
x = -4
Find the slopes form two points (1, -2) and (3,-4)
Answer:
y=-x-1
Step-by-step explanation:
if points are (-1,-2) and (3,-4)
Answer:
slope intercept form: y = -1/2x - 5/2 or y = -0.5x - 2.5
Choose the amounts of sales that would give Shonda's business positive balance choose all that apply 
Answer:
pwpqldkd
Step-by-step explanation:
oeiekekekkekejeje
A circle has a radius of 4 in. What is the circumference of the circle? it is not 25.13 inches.
Answer:
Radius: 1.128 Area: 4
Hope this helps :)
11 divided by 3 as a mixed number
Answer:
3 2/3
Step-by-step explanation:
I urgently need help!!!!
Answer:
No
Step-by-step explanation:
Hypotenuse-leg is for right triangles, which these aren't.
_______divisible by both 2 and 5
Step-by-step explanation:
____2__divisible by both 2 and 5
i need help with this question here~
Use the information provided to calculate Dominique’s net pay.
Dominique earns $7.50 an hour and worked 60 hours last month. During the month she received
$122 in tips. She also used her employee food discount and chose to have the cost of her meals deducted from her paycheck.
If Dominique had $41 deducted last month for meals, what was her net pay?
Calculating Your Income
Dominique’s Monthly Pay
Regular Pay
$
+
Tips
$
=
Gross Pay
$
-
Payroll Taxes
$ 80
-
Other Deductions
$
=
Net Pay
$
Please help on number 3 I’ll try to give u points
Answer:
Step-by-step explanation:
(0,3)
How many 3/4 are in 3 3/4?
A.16
B.5
C. 3 1/4
D. 7 1/2
Answer:
5
Step-by-step explanation:
3/4 x 5 = 15/4 15/4 is 3 3/4
The maximum size of a text message is 160 characters.
A space counts as one character.
a. Write an equation in two variables that represents the
remaining (unused) characters in a text message as you type.
b. Identify the independent and dependent variables.
c. How many characters remain in the message shown?
Sorry its so long, made it a bunch of points
Answer:
a
Step-by-step explanation:
Answer:I have same problem
Step-by-step explanation:
3х - 30 = у
7y - 6 = 3х
Answer:
Step-by-step explanation:
This one is simple substitution... at least, substitution is the easiest method. The first equation is 3x – 30 = y and the second is 7y – 6 = 3x
As I look, I see 3 ways to use substitution to solve this:
substitute 7y – 6 for 3xsubstitute 3x – 30 for ysolve 3x – 30 = y for 3x and make it equal to 7y – 6We're going to only use 1 method for the sake of time. Try the other two on your own. Assuming you don't make any mistakes, they will work.
Method 1:
3x – 30 = y
7y – 6 = 3x — initial system of equations
7y – 6 – 30 = y — substitute 7y – 6 for 3x
7y – 6 – 30 = y — marking like terms, bold for constants, underlined for variables
7y – 36 = y — combining the constants and simplifying
Here, you could diverge into multiple paths: add 36 to both sides, subtract y from both sides, divide by 6 OR subtract 7y from both sides and divide by –6 . For the sake of time, I'm subtracting 7y, though I don't like dealing with negatives.
7y – 7y – 36 = y – 7y — subtract 7y from both sides
–36 = –6y — simplify
–36 ÷ –6 = –6y ÷ –6 — divide by –6 on both sides
y = 6 — simplify
Again, we can diverge here: substitute y into 3x – 30 = y or substitute y into 7y – 6 = 3x
I'm going to choose 3x – 30 = y but it will work either way, should you take the time (if you have it) to chase down every path this problem can take.
3x – 30 = y — initial equation
3x – 30 = 6 — substitute 6 for y
3x – 30 + 30 = 6 + 30 — add 30 to both sides to isolate 3x
3x = 36 — simplify the expression
3x ÷ 3 = 36 ÷ 3 — divide both sides by 3 to isolate x
x = 12 — simplify
So, we have x = 12 and y = 6 . We know they work for 3x – 30 = y but not if they work for 7y – 6 = 3x . Let's substitute those in to see if (12, 6) really is the solution point.
7y – 6 = 3x — original equation
7(6) – 6 ≟ 3(12) — substitute 6 for y and 12 for x
42 – 6 ≟ 36 — simplify by multiplying
36 = 36 ✔ — simplify by combining like terms on left side
Success! It works! We have found our solution!
I hope this helps increase your understanding of the concept. Have a great day!
Please help, will give brainliest if the equation is added.
A group of friends wants to go to the amusement park. They have no more than $175 to spend on parking and admission. Parking is $12.50, and tickets cost $16.25 per person, including tax. Write and solve an inequality which can be used to determine xx, the number of people who can go to the amusement park.
Answer:
10 people can go to the amusement park
Step-by-step explanation:
$175-$12.50 = $162.50
$162.50 divided by $16.25= 10
An online furniture store sells chairs for $150 each and tables for $400 each. The store must sell a minimum of $4900 worth of chairs and tables each day. Write an inequality that could represent the possible values for the number of tables sold, tt, and the number of chairs sold, cc, that would satisfy the constraint.
Answer: 150c + 400t ≥ 4900
Step-by-step explanation:
Let the number of chairs sold = c
Let the number of tables sold = t
Price for each chair = $150
Price for each table = $400
The inequality that could represent the number of tables and chairs sold will be:
(150 × c) + (400 × t) ≥ 4900
150c + 400t ≥ 4900
Solve using the order of operations. (9+9+72)-4+9
PLZ ANSWER PLZ HURRY
Answer:
95
Step-by-step explanation:
The order of operations is PEMDAS
Equations in PARENTHESES come first
Numbers with EXPONENTS come second
MULTIPLICATION/DIVISION problems come next (depending on which comes first in the equation
ADDITION/SUBTRACTION comes last (again, depending on which comes first in the equation)
So we do (9+9+72) first
So that equals 90
And then we subtract 4 from 90
90 - 4 = 86
Then we add 9 to 86
86 + 9 = 95
Answer: 72 is the answer