Answer:
4 hours and 3.75 minutes
Step-by-step explanation:
[tex]162\frac{1}{2}\div40\\= 4.0625or4\frac{5}{80} or 4\frac{1}{16}[/tex]
This would be 4 hours and 3.75 minutes
help i hate maths its just HARD FOR MEEE
Answer:
Step-by-step explanation:
[tex]U=\{1,2,3,4,5,6,7,8,9,10\}\\\\P=\{2,4,6,8,10\}\\\overline{P}=\{1,3,5,7,9\}\\\\Q=\{2,3,5,7\}\\\overline{Q}=\{1,4,6,8,9,10\}\\\\P\ \cap\ Q=\{2\}\\P\ \cup\ Q=\{2,3,4,5,6,7,8,10\}\\\\\overline{P\ \cup\ Q}=\{1,9\}\\\\\overline{P}\ \cap\ \overline{Q}=\{1,3,5,7,9\}\ \cap\ \{1,4,6,8,9,10\}=\{1,9\}[/tex]
Suppose y varies directly with x. If y = –4 when x = 8, what is the equation of direct variation?
Complete the steps to write the equation of direct variation.
Start with the equation of direct variation y = kx.
Substitute in the given values for x and y to get
.
Solve for k to get
.
Write the direct variation equation with the value found for k. The equation is
.
Answer:
1.✔ -4 = k(8)8 = k(-4).
2.✔ -1/2.
3.✔ y = (-1/2)x.
Step-by-step explanation:
This is 100% right
A line passes through (2, −1) and (4, 5).
Answer:
The Equation of the Line that Passes through the Points (2, −1) and (4, 5) is 3x - y - 7 = 0.
Hope it helps you.34x = 850
just a simple equation. I posted it for no reason in particular.
Answer:
x=25
Step-by-step explanation:
because i divided
Factor 3x^3 + 27x^2 + 60x
Answer: 3x(x+4)(x+5)
Step-by-step explanation:
reduction:
6 + 7x - 4x - 2x - 4
-3 + 2x +5 - 8x
x + 3x - 7 - 6x - 3
Answer:
1: x + 2
2: -6x + 2
3: -2x - 10
John's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs John $5.95 per pound, and type B coffee costs $4.65 per pound. This month's blend used three times as many pounds of type B coffee as type A, for a total cost of $656.70. How many pounds of type A coffee were used?
Answer:
Let x = the number of lbs of Type A coffee.
We know that this month's blend used 3 times as many pounds of type B coffee as type A coffee.
Total lbs of coffee = x + 3x
The total cost then is:
($ cost for Type A)(x) + ($ cost for Type B)(3x) = $717.60
$5.65x + $4.25(3x) = $717.60
$5.65x + $12.75x = $717.60
$18.40x = $717.60
x = 39 lbs
(a+b)ˇ2 - 3 -6 - 0 + 5 =
Answer:
a+b=2
Step-by-step explanation:
start by combining all the terms that are possible: (a+b)^2 - 4 = 0
move -4 to the other side: (a+b)^2= 4
Find the square root of both sides: a+b=2
c(x-2)-5=b(x-3), solve for x
Answer:
x = (2c - 3b + 5) / (c - b).
Step-by-step explanation:
c(x - 2) - 5 = b(x - 3)
cx - 2c - 5 = bx - 3b Bring the terms in x to left side:-
cx - bx - 2c - 5 = -3b Bring other terms to right side:-
cx - bx = 2c - 3b + 5
x(c - b) = 2c - 3b + 5 Divide both sides by c - b:-
x = (2c - 3b + 5) / (c - b).
integers: 11×11÷[-11÷{12-(13-12)}]
Answer:
121+11 divided 37
hope this helped:)
Answer:
-121
Step-by-step explanation:
You can plug it in to a calculator, or use pemdas: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
Need help ASAP pls !!!!
If 5x + 3 = 23 , what does 12x - 10 equal ?
Answer:
38
Step-by-step explanation:
5x+3 = 23
5x = 23-3
x = 20/5
x = 4
12x-10 = ?
12 (4) -10
48 -10
38
The value of the expression 12x - 10 will be 38.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that 5x + 3 = 23. To calculate the value of 12x -10 first calculate the value of x.
5x+3 = 23
5x = 23-3
x = 20/5
x = 4
Calculate the value of 12x - 10.
12x-10 = ?
12x-10 = 12 (4) -10
12x-10 = 48 -10
12x-10 = 38
Therefore, the value of the expression 12x - 10 will be 38.
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Rowena sells a dress for $42.60 after making a profit of 20% on the cost price.
Calculate the cost price.
20
$ ...................................................
Answer:
$35.50
Step-by-step explanation:
With a 20% profit then $42.60 represents 120%
We require to find the cost price represented by 100%
Divide the amount by 120 to find 1% then multiply by 100, that is
cost price = [tex]\frac{46.60}{120}[/tex] × 100 = $35.50
Please Help!! I am really stuck on this assignment and i need it done
Answer:
Step-by-step explanation:
11-B
Uhhhh sorry about everything else I’ll come back when I figure it out
6-D
7-C? Maybe
Answer:
Step-by-step explanation:
The correct answer is b.
27h + 16 = 178 Subtract 16
27h = 178 -16 Combine
27h = 162 Divide by 27
h = 162 / 27
h = 6
Question 6
No they are not the same. They have the same terminal point but they are going in different directions. The answer is D Direction matters.
Question 7
The vectors add if as in arithmetic if they are going in the same direction.
answer C
5+(-2)= ? Please help! I don’t know the answer
Answer:
It will be 3 because its take away hope this helped
a square + 7 a + 12 =A + 4
Step-by-step explanation:
[tex] {a}^{2} + 7a + 12 = a + 4 \\ {a}^{2} + 7a - a - 4 + 12 = 0 \\ {a}^{2} + 6a + 8 = 0 \\ {a}^{2} + 4a + 2a + 8 = 0 \\ a(a + 4) + 2(a + 4) = 0 \\ (a + 4)(a + 2) = 0 \\ a + 4 = 0 \: or \: a + 2 = 0 \\ a = - 4 \: or \: a = - 2[/tex]
Answer:
a = -4 or a = -2
Step-by-step explanation:
a² + 7a + 12 = a + 4
=> a² + 7a - a + 12 - 4 = 0
=> a² + 6a + 8 = 0
=> a² + 2a + 4a + 8 = 0
=> a(a + 2) + 4(a + 2) = 0
=> (a + 4)(a + 2) = 0
=> a = -4 or a = -2
Simplify each expression
convert the following. a 1 day into second b 6.86 km into m
Answer:
a. there are 86400 seconds in a 24 hour day
b. to convert a km to a m you say
1000m is equivalent to 1 km
1000m:1km
x:6.86
x=6860m
I hope this helps
Does y=2.5 satisfy 2y-1=4
Answer:
yes
Step-by-step explanation:
substitute: 2(2.5)-1=4
5-1=4 is correct
What is the answer to this? Please send help
Step-by-step explanation:
steps are in the picture.
Note:if you need to ask any question please let me know.simplify 6a+4b+8+3b-4a+9
Answer:
2a+7b+17
Step-by-step explanation:
MATH
1
Write down the temperature that is 7 °C below -3°C.
ES
Answer:
-10 [tex]^\circ C[/tex]
Step-by-step explanation:
Subtract 7 from -3. -3 - 7 = 0=-10
The temperature that is 7°C below -3°C is equal to -10°C.
To find the temperature that is 7°C below -3°C, we need to subtract 7 from -3. When subtracting a positive number from a negative number, the result becomes more negative.
Starting with -3°C, we subtract 7°C:
-3°C - 7°C = -10°C
A negative temperature indicates a temperature below zero on the Celsius scale. In this case, -10°C means that the temperature is 10 degrees below freezing point.
The Celsius scale is based on the freezing and boiling points of water, with 0°C representing the freezing point and 100°C representing the boiling point at standard atmospheric pressure.
Since we are subtracting 7°C, we are moving further below the freezing point. So, -10°C indicates a colder temperature than -3°C.
To learn more about temperature click on,
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Complete question is:
Write down the temperature that is 7 °C below -3°C?
-a - 2b + 3c for a = 24, b= 7, and c=5
Answer:
-23
Step-by-step explanation:
Plug in each value for its respective variable.
-(24) - 2(7) + 3(5)
-24 - 14 + 15
= -23
Answer:
-23
Step-by-step explanation:
Plug in each value for its respective variable.
-(24) - 2(7) + 3(5)
What are are the domain and range of f(x) = (1/6)^×+2?
Use Distributive property to write the expression without parentheses !
Hi :)
-3(3a + 2) + 3
-9a -6 + 3
-9a -3
In a sample of 169 students, 16 said they donated blood. What percent of students have donated blood?
Answer:
9/79/169%
Step-by-step explanation:
16/169×100%=9/79/169%
in a School the monthly fee of a child is ₹ 497 . If there are 2983 students in a school ,find the total fee collected in a month.
Answer:
1482551 is correct answer
What is the width of a rectangle with an area of 300 square feet and a length of L feet?
Formula: 1/2 b*h b= 4; h=6
Answer:
12
Step-by-step explanation:
1/2•4•6 = (4•6)/2 = 24/2 = 12
What is 0.304 in fractions?
Answer:
[tex]\frac{38}{125}[/tex]
Hope this helped! Also, it would really help me out if you gave me a Brainliest. It boosts my confidence and makes my day! Would really appreciate! Thank you! (Also, if the answer is wrong, please tell me and I will check as fast as I can)
