Answer: 35 minutes
Step-by-step explanation: 60 - 25 minutes
Answer:
35 minutes....
12x -20=n (3x-5)
I need help I don’t get it please help me.
Answer:
The value of n = 4 and
The value of x = [tex]\frac{5}{3}[/tex]
Step-by-step explanation:
Method I:
As given, 12x -20=n (3x-5) .........(1)
Firstly , take 12x - 20
As 12x - 20 can be written as 4(3x - 5)
∴ equation (1) becomes
4(3x - 5) = n (3x-5)
Divide the equation by (3x-5) , we get
4 = n
Method II:
As given, 12x -20=n (3x-5)
⇒12x - 20 = 3nx - 5n
⇒12x - 3nx = 20 - 5n
⇒3x(4 - n) = 5( 4 - n)
Divide the equation by (4-n) , we get
3x = 5
⇒ x = [tex]\frac{5}{3}[/tex]
∴ we get
n = 4 and x = [tex]\frac{5}{3}[/tex]
Now, check that value of n and x satisfies the equation or not
12([tex]\frac{5}{3}[/tex]) - 20 = 4( 3([tex]\frac{5}{3}[/tex]) - 5)
⇒4(5) - 20 = 4(5 - 5)
⇒20 - 20 = 4(0)
⇒ 0 = 0
Hence , we get
The values of x and n satisfies the equation
so, we get
n = 4 and x = [tex]\frac{5}{3}[/tex]
solve using substitution
-5x+7y=-5
y=-5
x=?
So if you solve for x using the first equation, you get: x = 5y - 5.
From there you can plug that into the second equation which would give you:
7y-5y+5=-23
Simplifying from that point, you get y = -9.
Now that you have one of the values, you can solve for x by plugging it back into the equation we made (x = 5y - 5) and getting to the answer x = -40.
How do you write 343% as a decimal?
Answer:
Im guessing its 3.43
Step-by-step explanation:
Hope this helps :)
What is x?
(4/5)^x=64/125
Answer:
x = 3
Step-by-step explanation:
(4/5)^x = 64/125 means that 4^x / 5^x = 64/125
x can only be 3 because 4^3 = 64 and 5^3 = 125
Please mark Brainliest :)
A baseball card that originally cost $24 has been decreasing in value
at an annual rate of 6% for the last 5 years. What is the present value?
Answer:
I believe it is four dollars
Josh paid for three books with two $20 bills. He received $1 in change. Each book was the same price. How much did each book cost?
Please help solve :D
Add A + B
A: 3x² + 2x - 6
B: x² - 4x + 10
Answer:
3x² + 2x - 6+(x² - 4x + 10)
3x² + 2x - 6+x²-4x+10
3x²+x²+2x-4x-6+10
4x²-2x+4
Explain how to write the equation from the graph
Answer:
im guessing because its a slope were trying to find the slope intercept so y1~mx1+b on desomos or y=mx+b in actual equation form
Step-by-step explanation:
convert 2 3/4 into a improper faction
Answer:
11/4
Step-by-step explanation:
2 times 4 equals 8 and plus 3 equals 11 and dem is 4 so 11/4
Answer:
[tex]\frac{11}{4}[/tex]
Step-by-step explanation:
[tex]2\frac{3}{4}[/tex]
To get an improper fraction do the multiply and add shortcut. Do the denominator times the whole number ( 2 x 4). You will get 8, next add 8 with 3. You still keep the denominator, so your final result is [tex]\frac{11}{4}[/tex]
6
What will be the new position of the given point after
translation of 3 units down and 3 units left?
b)
d)
Help? I need it quick!ty<3
Answer:
Step-by-step explanation:
(1,3)
32% of 25 is what number
Answer:
8
Step-by-step explanation:
it just is
Answer:
8
Step-by-step explanation:
Convert to a decimal
32%
move two decimal points to the left
0.32
multiply
0.32 times 25 = 8
Write the place value of the 3 in the following number: 5,684.937
Answer:
Tens
Step-by-step explanation:
find the distance between the points ?
Answer:
4
Step-by-step explanation:
The distance between the two points is (-1,-4) - (-5,-4)
Kara bought two birthday gifts for her twin nephews. Each gift cost $12.50. Sales tax was
8.5%. What was the total cost for the gifts, including tax?
Answer:
$27.12
Step-by-step:
So, we first need to learn how much money the tax is. We can find it like this
8.5 8.5x12.50
------ x 12.50 = ----------------
100 100
106.25
= ------------- = 1.0625 ~~ $1.06
100
The tax is $1.06
So now, the only thing left is to add
12.50 + 1.06 = $13.56
13.56x2 = $27.12 (for both gifts)
In total, both gifts cost $27.12 with tax.
In total, both gifts cost
Which of these is the standard form of the following function?
f(x) = -9(x + 5)2 + 4
f(x) = 9x2 − 90x − 221
f(x) = -9x2 − 90x − 221
f(x) = 9x2 − 180x + 221
f(x) = -9x2 − 180x − 221
Answer:
We conclude that the standard form of the given function is:
[tex]f(x)=-9x^2-90x-221[/tex]
Hence, option B is correct.
Step-by-step explanation:
We know that the standard form of the quadratic function is of the form
[tex]f\left(x\right)\:=\:ax^2\:+\:bx\:+\:c[/tex]
Given the function
[tex]f(x)=-9\left(x\:+\:5\right)^2\:+\:4[/tex]
as (x+5)² = x² + 10x + 25
[tex]f(x)=-9\left(x^2+10x+25\right)+4[/tex]
Expanding -9(x² + 10x + 25) = -9x² - 90x - 225
[tex]f\left(x\right)\:=-9x^2-90x-225+4[/tex]
simplifying
[tex]f(x)=-9x^2-90x-221[/tex]
Therefore, we conclude that the standard form of the given function is:
[tex]f(x)=-9x^2-90x-221[/tex]
Hence, option B is correct.
Answer:
Hope this helps!
Step-by-step explanation:
GUYS HELP IM STUCK!!!!!!!
Answer:
A Responding variable.
Step-by-step explanation:
Think about it, if you had a car and there were two different ramps, one short and one was high, would the car's speed be different from the other ramp? Yes it would, and since its changing its a responding variable, because that changes as well.
P.S I would appreciate Brainliest or whatever thats called!
Answer:
It's the middle one
Step-by-step explanation:
The cost to manufacture a hair clip is $0.50. With a markup of 200%, what is the selling price of this hair clip?
Answer:
Step-by-step explanation:
The cost to manufacture a hair clip is $0.50. With a markup of 200%, what is the selling price of this hair clip?
Given data
cost to manufacture a hair clip is $0.50
markup of 200%
Required
The selling price
We know that
Mark up percent= selling-cost/cost*100
200= selling-0.5/0.5*100
200-selling= 50/0.5
200-selling= 100
selling= 200-100
selling = 100
Hence the selling price is $100
can someone please help me with number one asap!!
Answer:
a = 60
b = 60
c = 120
Step-by-step explanation:
For a;
a + 120 = 180
This is because angles on a straight line are supplementary
a = 180-120
a = 60
a = b = 60
This is because they are corresponding angles and corresponding angles are equal
c = 120
This is because they are alternate exterior angles and alternate exterior angles are equal
so uh- people didnt do the question properly- i just need help with QUESTION 4
and its multiple choice, meaning more than just one answer :'(
Answer:
A and C luv <3
Step-by-step explanation:
Prove (n + 6)² – (n + 2)² is always a multiple of 8
Step-by-step explanation:
(n+6)^2-(n+2)^2=(n+6-n-2)*(n+6+n+2)=4*2*(n+4)=8*(n+4) so it is always a multiple of 8
Diego had $21.32 and gave $9.50 to Elena. How much did he have left?
Answer:
11.82
Step-by-step explanation: I know this because 21.32-9.50= 11.82
Which expression is equivalent to the expression 1/4 (x- 2) + 1/3x HELP
The answer is 7x/12 - 1/2. Its the first option in your picture. Hope this helps .
it really helped....
Answer: What now?
Step-by-step explanation: If this is for someone else then sorry
Find the value of X.
Answer:
19) 28°
20) 60°
21) 17°
Step-by-step explanation:
19)
Supplementary angles:
(x + 12)º + 140º = 180º
x + 12 + 140 = 180
x = 180 - 140 - 12
x = 28º
20)
Angles at a point:
(- 24 + x)° + 24° + 300° = 360°
- 24 + x + 24 + 300 = 360
x = 360 - 300
x = 60°
21)
Vertically opposite angles:
(1 + 3x)° = 52°
1 + 3x = 52
3x = 52 - 1
3x = 51
x = 17°
What is the x-coordinate of ( 5,6 )
please answer me
HELP I need help with question 6 first person to asnwer gets brainliest
The diameter of a circle is 9 cm. Find its area to the nearest tenth.
Cut diameter in half to find radius
9/2 = 4.5
radius = 4.5
This is the formula for area of a circle:
pi * radius^2
pi * 4.5^2
20.25pi
Now find pi:
20.25 * pi = 63.6
Answer:
63.6 cm is the area
Answer:
63.6
Step-by-step explanation:
1. A = πr²
2. Find the radius (r). Since the radius of a circle is the diameter/2, the radius is 9/2, which is 4.5
3. Now that we know the radius, we plug it into our formula: A = π(4.5)²
4. Simplify: A = 3.14(20.25)
5. A = 63.62
6. Rounding to the nearest tenth makes your answer 63.6
Please help will mark brainlist!!
Answer:
210 cubic mm
Step-by-step explanation:
Volume. Of rectangular prism = 7*5*6 = 210 cubic mm