The side of a box has length x feet, and another side has length (x-7) feet. What value of a would produce an area of 18 square feet?
Answers
Answer:
x=9
Step-by-step explanation:
(9-7) = 2
9 times 2 = 18 square feet
Value of x is 9 , -2
Given that;
Length of box = x feet
Width of box = (x - 7) feet
Area of box = 18 square feet
Find:
Value of x
Computation:
Area of rectangle = Length × Width
Area of rectangular box = x × (x - 7)
x² - 7x = 18
x² - 7x - 18 = 0
Using factorisation;
x² - 7x - 18 = 0
x² - (9 - 2)x - 18 = 0
x² - 9x + 2x - 18 = 0
x(x - 9) + 2(x - 9) = 0
(x - 9)(x + 2) = 0
So,
x = 9, x = -2
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Related Questions
Please help! What are the independent and dependent variables of this problem?
Answers
Answers:
Independent Variable = time = tDependent Variable = height = h(t)======================================================
Explanation:
The horizontal axis always represents the independent variable. Often it is x, but in this case, it's t. The time value does not depend on the height. Time does it's own thing.
The height depends on the time value. The vertical axis, or y axis, is always representing the dependent variable. The notation h(t) helps us see that h must be paired with t, in order to find the value of h so to speak. As the time value changes, so does the height of the ball.
i will mark brainliest how do i solve for 5+3x<50?
Answers
Answer:
x<15
Step-by-step explanation:
Step 1: Simplify both sides of the inequality.
3x+5<50
Step 2: Subtract 5 from both sides.
3x+5−5<50−5
3x<45
Step 3: Divide both sides by 3.
3x /3 < 45 /3
Given the equation 25 + 7x = 11
x = -2
x = 2
X = -14
x = 14
Answers
Answer:
x = -2
Step-by-step explanation:
Isolate the variable (or x) by subtracting 25 from both sides.
We do this and get 7x = -14
Divide both sides by 7 and we get x = -2
Solve for X
2x-10/4 = 3x
X=-10
X=-1
X=2
X=11
Answers
Answer:
-5/2
Step-by-step explanation:
2x-10/4=3x
10/4=2x-3x
5/2=-x
x=-5/2
7W + 5 + 6 + 3w
Just help me pleAsee
Answers
Answer:
the answer is 10w + 11
Sarah has built a scale model of a bridge. The real bridge is 56 ft across and 21 ft wide. Sarah's model is 8 in. across and
2.5 in. wide. Is Sarah's model a true model of the bridge? Explain.
Answers
Answer:
Well, there are 12 inches ina foot so let's multiply 56 by 12. Now, divide 672 by 8: 672/8 = 84 So, we have 84 which means that if we multiply 84 by 2.5 it should equal however many inches there are in 21, if it is to be a true scale model. It is not equal, so no, it is not a true scale model.
Step-by-step explanation:
HOPE THIS HELPS!!!
BRAINLIEST PLZ???
Answer:
It is not equal, so no, it is not a true scale model.
Step-by-step explanation:
Well, we need to find the ratio of it and see if both measurements of the 'scale' model are the same. But before we do, take in mind we can't divide 56/8 because 56 needs to be converted into inches.
56 • 12 = 672
divide 672 by 8:
672/8 = 84
So, we have 84 which means that if we multiply 84 by 2.5 it should equal however many inches there are in 21, if it is to be a true scale model
21 • 12 = 252
2.5 • 84 = 210
It is not equal, so no, it is not a true scale model.
PLEASE HELP I SUCK AT MATH
Answers
Answer:
wouldent that be C?
Step-by-step explanation:
Write your own problem that would give the following answer:
(3a^3r^6)/
(2p^5)
Your problem must: contain 4 different variables (letters), require the use of at least 4 different exponent
properties to simplify, and use at least one number bigger than 12.
Once you come up with your problem write it below, then include the steps showing that it simplifies down
to the given expression. Once finished, write a paragraph explaining your thought process on how you
came up with your problem and which exponent properties are used to simplify it.
Answers
Answer:
i don't know but good luck with that
Step-by-step explanation:
sorry
Solve for x. -3 < x - 10
Answers
Answer:
7 < x
Step-by-step explanation:
-3 < x - 10
+10 +10
------------------
7 < x
Answer:
x > 7
Step-by-step explanation:
-3 < x -10
=> x - 10 > -3
=> x > 10 - 3
=> x > 7
There is one third of a pie shared equally between 5 children. How much of the pie does each child receive? one ninth pie one fifteenth pie one eighteenth pie one twentieth pie
Answers
Answer:
Each of the 5 children receive one fifteenth pie
Step-by-step explanation:
Given:
One third of a pie shared equally between 5 children.
To find:
Amount of the pie with each of the 5 children.
Solution:
Number of children = 5
Also, one third of a pie shared equally between 5 children.
So,
Amount of the pie with each of the 5 children [tex]=\frac{\frac{1}{3} }{5}=[/tex] [tex]\frac{1}{15}[/tex]
Hence, each of the 5 children receive one fifteenth pie.
first we need to ask our self the question
Question: There is one third of a pie shared equally between 5 children. How much of the pie does each child receive?
__________________________________________________________
next we need to do the math. 1/3 divided by 5
i recommend turning the fractions into decimal points and then dividing them. after doing that we have the answer 0.067. but that is not a option. so turn it into a fraction! and we get 1/15.
__________________________________________________________
extra note: thank you for reading my answer! if this helps you can say thanks by clicking the heart. you can also rate it by clicking a star.
click down there to get help from a tutor
__________________________________________________________
PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS ASSSSSSAAAAAAAP HELPPPPPPPPPPPPPPPP
Answers
Answer:
hablas verja ijueputa mamaverja
Find the value of x in the following figure.
(a)
60°
(2x + 40°
R
Answers
bc of congruence mark
Paguei 74,00 por uma bolsa e uma sandália. A bolsa foi 23,00 mais barato q a sandália. Qual o preço da sandália?
Answers
Responda:
48,5
Explicação passo a passo:
Dado que:
Custo total de bolsa e sandália = 74,00
Deixei :
Custo da sandália = x
Custo da bolsa = x - 23
Preço da sandália:
x + (x - 23) = 74
x + x - 23 = 74
2x - 23 = 74
2x = 74 + 23
2x = 97
x = 97/2
x = 48,5
Portanto, custo da sandália, x = 48,5
FIRST CORRECT ANSWER TODAY GETS BRAINLIEST!!!
If $a+b = 8$, $b+c = -3$, and $a+c = -5$, what is the value of the product $abc$?
Answers
Answer:
a = 3
b = 5
c = -8
abc = -120
Step-by-step explanation:
Answer:
-120
Step-by-step explanation:
sorry just looked at the answer below *HAXZ*:)
Pleaseeee helppp answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!
Answers
please help me 4t−t+2
Answers
Answer:
The answer is 3t + 2
Step-by-step explanation:
Subtract t from 4t.
hoped this helped!
brainly, please?
Betsy bought 10 pencils for $0.15 each, 8 notebooks for $1.50 each, and a book for $45.00.
Answers
find the volume of the earth if the diameter is 7917.5
Answers
Answer:
Step-by-step explanation:
diameter=7917.5
r=3958.75
the earth is sphere
V=4/3x3.14xr^3
V=2.6*10^11
A triangle with sides 6, 12, and 18 is similar to another triangle whose longest side is 24. What is the perimeter of the larger triangle?
Answers
Answer:
Possibly 48 because perimeter I believe is found by adding all sides up sorry if I'm wrong friend. -Your friend, Cipher
Step-by-step explanation:
Which of these numbers lines is the X-axis?
Answers
Answer:
the one going this way -------------------------- not up and down
Step-by-step explanation:
Answer:
Step-by-step explanation:
the one on the right
Is the trinomial a perfect square? write yes or no. x^2+12x+36
Answers
Answer:
no
Step-by-step explanation:
The clock shows the time that Ron left his home in the morning. He came home 7
hours and 35 minutes later. What time did Ron come home?
Answers
Answer: 14:35 hrs
Step-by-step explanation:
Missing time that Ron left was 07:00 hrs
Ron left the house at 07:00 hrs. If he arrived back to the house 7 hours and 35 minutes later, you can find out what time he arrived by simply adding the time he left to the time he stayed outside:
= 7 + 7hrs 35 minutes
= 14 hrs 35 minutes
= 14:35 hrs
Help?... i really really need help...
Answers
Answer:
Bro its easssssssssssssssssssssssssssssssy
Step-by-step explanation:
you must do the rule of threee.
2) 24
3) 9
4) 32
5) 35
6) 18
7) 3.6
What is the distance of
CD
given that
C (5,-2) and D (-3,8)
Leave your answer as a square root.
Answers
Answer:
CD = [tex]\sqrt{164}[/tex]
Step-by-step explanation:
Calculate the distance d using the distance formula
d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]
with (x₁, y₁ ) = C(5, - 2) and (x₂, y₂ ) = (D(- 3, 8)
d = [tex]\sqrt{(-3-5)^2+(8+2)^2}[/tex]
= [tex]\sqrt{(-8)^2+10^2}[/tex]
= [tex]\sqrt{64+100}[/tex]
= [tex]\sqrt{164}[/tex]
= 2[tex]\sqrt{41}[/tex] ← in simplest form
As, we have C (5, - 2) and D (- 3, 8), to find CD let's use distance formula :
[tex] \underline{\boxed{\tt{Distance \: between \: two \: points = \sqrt{(x_2 - x_1)^{2} + (y_2 - y_1)^{2}}}}}[/tex]
Here,
x₁ = 5x₂ = - 3y₁ = - 2y₂ = 8So, by filling values :
[tex] \sf : \implies CD = \sqrt{(-3 - 5)^{2} + (8 - (-2))^{2}}[/tex]
[tex] \sf : \implies CD = \sqrt{(-8)^{2} + (8 +2))^{2}}[/tex]
[tex] \sf : \implies CD = \sqrt{64 + (10)^{2}}[/tex]
[tex] \sf : \implies CD = \sqrt{64 + 100}[/tex]
[tex] \sf : \implies CD = \sqrt{164}[/tex]
Hence, distance of CD is [tex] \bold{\sf \sqrt{164}.}[/tex]
what is the answer to (a+3)(b+5)
Answers
Answer:
ab+5a+3b+15
Step-by-step explanation:
(a+3)(b+5)
a(b+5)+3(b+5)
ab+5a+3b+15
Cuánto ganaría un accionista que tiene 100 acciones, si cada acción que él compró aumenta de $20.00 a $30.00
Answers
Answer:
$2,000 and $3,000
Step-by-step explanation:
The computation is shown below:
Given that
The Number of shares is 100
The Increase from $20 to $30
If the per share is $20, so the earning of the shareholder is
= 100 shares × $20
= $2,000
And ,if the per share is $30, so the earnings of the shareholder is
= 100 shares × $30
= $3,000
plsssssssssssss helpppppppppppp
Answers
Answer:
A. 0
Step-by-step explanation:
3*0 is less than 18
Pleaseeee help answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
The answer to the question is 540°
Step-by-step explanation:
The reason to the answer is:-
There is a formula which is (n - 2) × 180
n is the number of sides the shape has, and there is 5 sides so we subtract 5 - 2 = 3
Therefore, 3 × 180 = 540°
I hope this answer helps!
Answer:
540°
General Formulas and Concepts:
Math
CountingPre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
Sum of Angles: 180(n - 2)°Step-by-step explanation:
Step 1: Define
We have a polygon with 5 sides (a pentagon)
n = 5
Step 2: Find Sum
Substitute in n [Sum of Angles]: 180(5 - 2)°(Parenthesis) Subtract: 180(3)°Multiply: 540°simplify 3a x 4, thank youuuu
Answers
Answer:
12a
3 x 4 =12a
HELP PLEASE I'll mark you brainliest
What problem did Americans face at home as the War of 1812 developed on the seas?
a shortage of American goods
strained relations with American Indians
challenges of settling untamed lands
a divided government
Answers
The answer is the first one . A