1 4/5 = 2/5 + r HELPPPPPPPPPPPPPPPPPPPPP
Answer:
r=7/5
Step-by-step explanation:
I'm struggling a little bit can someone help?? A cell phone costs $850. You have a coupon for 15% off. How much will you pay for the phone? Include 13% tax
Answer:
722.50
Step-by-step explanation:
not exactly sure its right but i did use a calculator so I'm pretty sure it's right
Given:
850 dollars is the original price of the cell phone. (discount) coupon for 15% offtax is 13 percent.------------------------------------------------------------------
original price - discount = sales price
850 - (850 x [tex]\frac{15}{100}[/tex] ) = sales priceANSWER: $722.50 or [tex]\frac{1445}{2}[/tex]Include 13% tax... price + sales tax = total price of the phone
722.50 + (722.50 x [tex]\frac{13}{100}[/tex] ) = ?ANSWER: The final price of the cellphone is $816.43
A number z squared, decreased by 7
9514 1404 393
Answer:
z² -7
Step-by-step explanation:
A square is indicated using an exponent of 2. "Decreased by 7" means 7 is subtracted.
z squared, decreased by 7 is ...
z² - 7
y=-x+7 y=2x+1 solve using equations
Answer:
x=6,y=13
Step-by-step explanation:
Eliminate the equal sides of each equation and combine.
x+7=2x+1
Solve x+7=2x+1
x=6
Evaluate yy when x=6
y=13
The solution to the system is the complete set of ordered pairs that are valid solutions.
(6,13)
The result can be shown in multiple forms.
Point Form:
(6,13)
Equation Form:
x=6,y=13
can you help me graph the line?
Answer:
Step-by-step explanation:
PLS COME ASAP PLS!!!!
Answer: 9/2
Step-by-step explanation:
21=2(6) + 2(?)
21=12 + 2(?)
9=2(?)
(9/2)=?
There are 12 marbles in a bag. There are 4 blue, 5 red, 1 green, and 2 black.
12 Marbles totall
What is the probability of a red or a green from the bag?
이
5
12
12
Answer:
1/2
Step-by-step explanation:
There are 6 marbles that are either red or green out of 12 total marbles, so you have:
6/12 = 1/2
Answer:
1/2
Step-by-step explanation:
To find the probability, you need to put the number of what you want to know the probability of over the total. In this case, we want to know what the probability of red and green over the total is. So, hence the equation:
[tex]\frac{5+1}{12}[/tex] or [tex]\frac{6}{12}[/tex] which can be simplified to [tex]\frac{1}{2}[/tex].
Helppppppppppppppppp plzzzzzzzzzzzzzzzzzzzzzz
Select all expressions that show "X" increased by 35%.
a
1.35X
b
(35/100)X
c
x + (35/100)
d
( 1+0.35)x
e
(100+35) + x
f
(100 + 35)x
All the equivalent expressions are,
1.35X and (1+0.35)x.
The correct options are a and d.
What is a percentage?A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.
Given:
The value of X increased by 35%.
Here, we will use the percentage formula.
The value is increased by 35%.
That means,
100 + 35 = 135%
135% in decimal form is 1.35.
In expression form as subject to X,
X(1.35)
In expressed form,
= X + 0.35X
= 1.35X
Therefore, equivalent expressions are 1.35X and (1+0.35)x.
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Find the area of the trapezoid by decomposing it into other shapes
Answer:
60 cm ( squared )
Step-by-step explanation:
you can find the area of the trapezoid ( by decomposing it into other shapes ) by separating two triangles, and using the formula to find the area of triangles, which is A= 1/2 ( b x h ) and add the answer to those together ( 16 cm squared and 4 cm squared ), and after that, you can find the area to the rectangle by multiplying the l x w, which is 10 x 4 ( after separating the triangles.). That equals 40, and when you add them all together ( 16 + 4 + 40 ) it equals 60 cm (squared).
Help, I need this soon!
Answer:
1a. x=2 1b. x= -1
Step-by-step explanation:
slove the equation below for y :
6x-4y=12
Answer:
[tex]y=-\frac{3(x +2)}{2}[/tex]
Step-by-step explanation:
We have an equation, and the question is asking for us to solve y. So to solve, we have to isolate y.
6x - 4y = 12
Subtract 6x from both sides :
-4y = 12 - 6x
Divide both sides by -4 :
[tex]y=-\frac{3(x+2)}{2}[/tex]
Cuál es el 45% de 4800
Answer:
2160
Step-by-step explanation:
45x4800
divide that by 100!
Solve for c:
c + (-20) = -12
Answer:
8
Step-by-step explanation:
Isolate and solve for C
[tex]c + (-20) = -12\\c - 20 = -12\\c = -12+20\\c = 8[/tex]
Answer:
C = 8
Step-by-step explanation:
By reversing the equation, you can get the result.
-12 + 20 = ?
-12 + 20 = 8
Proofcheck:
8 + (-20) = ?
8 + (-20) = -12
Is this statement always true?A cross section parallel to the base of a right rectangular prism is a square
Answer:
Step-by-step explanation:
No, it's not always true
6. Which function is equivalent to y=3( x + 2)2 + 7?
Answer:
3x+45
/3x /3x
x= 15
simplify the following expression=(4ad)-1/13b x 16a/(13abc)-1
Answer:
(4ad) - 16/169c -1.
Step-by-step explanation:
Alright. Let's start.
(4ad) - [tex]\frac{1}{13}[/tex]b * [tex]\frac{16a}{13abc}[/tex] -1 is the expression.
So, by PEMDAS, we need to do the multiplication first. We can also say that 1/13b is the same as b/13.
(4ad) - 16ab/169abc -1 Now let's cancel out the b and a on numerator and denominator.
(4ad) - 16/169c -1.
Hope this helps!
I NEED HELP NEEDS TO BE DONE IN 10 mins
Standard to Slope Intercept Form
Put the following equation of a line into slope-intercept form, simplifying all fractions.
2x+8y=24
Answer:
y = - [tex]\frac{1}{4}[/tex] x + 3
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c
Given
2x + 8y = 24 ( subtract 2x from both sides )
8y = - 2x + 24 ( divide all terms by 8 )
y = - [tex]\frac{1}{4}[/tex] x + 3 ← in slope- intercept form
Help?!? I know that we need to use the Triangle Angle Sum Theorem, but... I'm completely blank.
Answer:you should add the sides
Step-by-step explanation:
................................................
Answer:
75.8°
Step-by-step explanation:
x + x + 28.4° = 180°{ being linear pair }
2x = 180° - 28.4°
2x = 151.6°
x = 75. 8°
Hope it will help :)
What property is this ?
a(b + c) = ab + ac
Answer:
distributive I'm pretty sure!
Step-by-step explanation:
i hope this helps have a great day:)
5 ft
4 ft
3ft.
Find the volume
Answer:
60 feet. :)
Step-by-step explanation:
This is the formula you want to use:
[tex]l*w*h=V[/tex]
It means that length·width·height = Volume. So, 5 · 4 · 3 = 60 ft.
Xiang is a teacher who bought a $2350 laptop for school use. The laptop is an allowable
deduction with a rate of depreciation of 33% p.a. of the current value. How much can be
claimed for depreciation in the:
Answer:
b
Step-by-step explanation:
What is the degree of -8mn^2
Answer: 2
Step-by-step explanation:
To find the degree, use the exponent. An exponent of two means a degree of two, like an exponent of four means a degree of four
How much water will the swimming pool hold if it is completely filled with water?
9 ft
9 ft
4 ft
4 ft
4 ft
30 cubic feet
144 cubic feet
224 cubic feet
324 cubic feet
Answer:
144
Step-by-step explanation:
You should pick B.
Work out the size of angle x.
Х
43°
90
Answer:
It's 47
Step-by-step explanation:
I hope this helps you
Find the missing value to the nearest hundredth cos=4/38
Answer:
83.96 (approximately)
Step-by-step explanation:
I am not completely sure what the problem is asking, just like the last one, but I believe that you are just supposed to take the inverse of cosine. So, in your calculator, make sure it is in degrees mode, then usually you have to click the 2nd key and then cosine. You use the inverse of cosine when two sides are given, but you are not given the angle.
It should look like:
[tex]cos^{-1}(\frac{4}{38})[/tex], which is approximately 83.96.
Hopefully this is right, if not, please let me know. Good luck.
Jessica estimated that her family used 30% more water this month compared to last month . they used 12000 gallons of water last month , how much water did they use this month
Answer:
15,600 Gallons
Step-by-step explanation:
The 30% of 12000 is 3600 thus, Jessica's family used 15600 gallons of water.
What is the percentage?The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.
The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.
As per the given,
Last used of water = 12000
30% of 12000 = (30/100)12000 = 3600
Water used in the current year = 12000 + 3600 = 15600 gallons.
Hence "The 30% of 12000 is 3600 thus, Jessica's family used 15600 gallons of water".
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PLease help with this i will give brainliest
Answer:
Probably -3
Step-by-step explanation:
If it's going by 3s, then it should be -3.
Answer:
-3
Step-by-step explanation:
A restaurant makes pizzas with 6-inch diameters ad 12-inch diameters. Which of the following statement is true?
The area of the 12-inch pizza is twice the area of the 6- inch pizza
The area of the 12-inch pizza is three times the area of the 6-inch pizza
the area of the 6-inch pizza is 1/4 the area of the 12-inch pizza
the area of the 6-inch pizza is 1/6 the area of the 12-inch pizza
Answer:
The correct option is c: the area of the 6-inch pizza is 1/4 the area of the 12-inch pizza.
Step-by-step explanation:
The area (A) of each pizza is given by:
[tex] A = \pi r^{2} [/tex]
Where:
r: is the radius
For the 12-inch pizza we have:
[tex] A_{12} = \pi (\frac{12 inch}{2})^{2} = 113.1 inch [/tex]
And for the 6-inch pizza we have:
[tex] A_{6} = \pi (\frac{6 inch}{2})^{2} = 28.3 inch [/tex]
The ratio between A₆ and A₁₂ is:
[tex] \frac{A_{6}}{A_{12}} = \frac{28.3 inch}{113.1 inch} = 0.25 = \frac{1}{4} [/tex]
Hence:
[tex] A_{6} = \frac{A_{12}}{4} [/tex]
Therefore, the correct option is c: the area of the 6-inch pizza is 1/4 the area of the 12-inch pizza.
I hope it helps you!
The area of the 6-inch pizza is 1/4 the area of the 12-inch pizza
Given that;Diameter of pizza A = 12 inch
Diameter of pizza B = 6 inch
Computation:Ration of Area of Pizza A to B = [πr1²] / [πr2²]
Ration of Area of Pizza A to B = [(12/2)²] / [(6/2)²]
Ration of Area of Pizza A to B = [(6)²] / [(3)²]
Ration of Area of Pizza A to B = 36 / 9
Ration of Area of Pizza A to B = 4:1
So,
Option "C" is the correct answer of the following question.
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