Answer:
length is 20 meters
width is 12 meters
Step-by-step explanation:
x = length
y = width
x = 2y - 4
x×y = 240
using the first equation as substitute in the second equation we get
(2y - 4)×y = 240
2y² - 4y - 240 = 0
the solution to such a quadratic equation is
x = (-b ± sqrt(b² - 4ac))/(2a)
here we are going for y instead of x, but it is the same principle.
a = 2
b = -4
c = -240
y = (4 ± sqrt(16 - 4×2×-240))/4 = (4 ± sqrt(16 + 1920))/4 =
= (4 ± sqrt(1936))/4 = (4 ± 44)/4 = (1 ± 11)
y1 = 1 + 11 = 12
y2 = 1 - 11 = -10
negative side lengths don't make any sense, so, y = 12 meters remains.
x = 2y - 4 = 2×12 - 4 = 24 - 4 = 20 meters
i bought a few pies & cut each pie into 6 slices. if i ended up with 42 slices of pie , how many pies did i buy.
Answer:
you bought 7 pies.
Step-by-step explanation:
42/6 = 7. hope this helps
Answer:
you bought 7 pies
Step-by-step explanation:
7*6=42
Please help me rq!! i need help
Answer:
x = 2
Step-by-step explanation:
The volume (V) of a cuboid is calculated as
V = lbh ( l is length, b is breadth, h is height )
Here l = 10x , b = [tex]\frac{7}{4}[/tex] , h = 2 , then
V = 10x × [tex]\frac{7}{4}[/tex] × 2 = 70 , that is
20x × [tex]\frac{7}{4}[/tex] = 70
5x × 7 = 70
35x = 70 ( divide both sides by 35 )
x = 2
Answer:
[tex]x=2[/tex]
Step-by-step explanation:
Since L × W × H = V, we get
[tex]10x*\frac{7}{4}*2=70\\10x*\frac{7}{4}=35\\10x=20\\x=2[/tex]
Fractions, decimals, and percents are all used to describe a
part of something. Which of the 3 types do you think is most
commonly used? Why do you suppose this is true?
Answer:
Step-by-step explanation:
I think that Percents are used very commonly all around us every day. It gives us a better vision in our mind of the quantity than decimals or fractions. We see Percents everywhere. In the shopping mall for discounts, math homework and work. So overall, percents are most commonly used.
Hope that helps!
Solve for n please, with work , thank you!
[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]
[tex] \sf1 - 3 n \gt - 1 - 4 ( 2 n - 8 )[/tex]
Solve the inequality algebraically.[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]
[tex] \sf1 - 3 n \gt - 1 - 4 ( 2 n - 8 )[/tex]
Use the distributive property to multiply -4 by 2n-8.[tex] \sf1-3n>-1-8n+32 [/tex]
Add -1 and 32 to get 31.[tex] \sf1-3n>31-8n [/tex]
Add 8n to both sides.[tex] \sf1-3n+8n>31 [/tex]
Combine -3n and 8n to get 5n.[tex] \sf1+5n>31 [/tex]
Subtract 1 from both sides.[tex] \sf5n>31-1 [/tex]
Subtract 1 from 31 to get 30.[tex] \sf5n>30 [/tex]
Divide both sides by 5. As 5 > 0, the direction of the inequality remains the same.[tex] \sf \: n>\frac{30}{5} \\ [/tex]
Divide 30 by 5 to get 6.[tex] \boxed{ \boxed{ \bf \: n>6 }}[/tex]
Ay, anyone able to help me out with this, ASAP please!
PLEASE EXPLAIN I'LL GIVE BRAINLY!!!
For this exponential function, what is the output value (y), when the input value (x) is 1?
y=4x3^x
(1,[?])
Answer:
y = 12
Step-by-step explanation:
Given
y = 4 × [tex]3^{x}[/tex] ← substitute x = 1
y = 4 × [tex]3^{1}[/tex] = 4 × 3 = 12
that is the point (1, 12 )
can someone solve this for me?
Pls help, show work, I’ll give brainliest
Answer:
A= 4.5 R= 2 E= 26 L = 91 W= 5 H= 3.8 T= 11 M= 999
Step-by-step explanation:
A.)
.5 x d. d= 9, so .5 x 9 is 4.5
R.)
1/5 x q. Q= 10 so 1/5 x 10 is 2
E.)
2(p+q). p=3 and q= 10, so first add 3+10=13 then × 2x13=26
L.)
100-d. d=9, so 100-9= 91
W.) 3q/2p q= 10 and p= 3, so 3×10= 30, and 2×3=6 , 30/6 can be simplified to 5 because 30÷6=5
H.)
3.8(q-d) q= 10 and d=9, 10-9=1 and 1×3.8= 3.8
T.)
p+q+d/2 , p= 3, q= 10, d=9, so 3+9+10=22, and 22/2 can be simplified to 11
M.)
q×q×q. Q= 10, and 10x10x10= 1,000, and 1,000-1= 999
Hope this helps, took me a long time lol have a good day/night!
Algebra II
Need help on the graph and table
PLEASE
ASAP
Answer:
what part do you need help with
Step-by-step explanation:
Pls help I’ll give you 35 points A book is on sale for
25% off. The sale
price is $12. What
was the original price
of the book? What
was the amount of
the discount?
36 ÷ 9 + 48 - 10 ÷ 2
[tex]36:9+48-10:2=\\\\=4+48-5=52-5=\boxed{47}[/tex]
Answer:
47Step-by-step explanation:
Parenthesis
Exponent
Multiplication
Division
Addition
Subtraction
36 ÷ 9 + 48 - 10 ÷ 2 4 + 48 - 10 ÷ 2 4 + 48 - 5 52 - 5 47If each side of tangle is increased by 25 %, then find the percentage increase or decrease in area
Answer:
Step-by-step explanation:
Answer:
If each side of tangle is increased by 25 %, then find the percentage increase or decrease in area
Step-by-step explanation:
Use suitable transformation on [tex]\left[\begin{array}{ccc}1&2\\3&4\end{array}\right][/tex] to convert it into an identity matrix.
Answer:
hope it helps you .......
thanks
HELP PLEEAASSEEE!!!!!!!
Drag the tiles to the correct boxes to complete the pairs.
Match the numbers in standard notation with the corresponding numbers in scientific notation.
A cylinder has a volume of 100cm and a radius
of 5 cm. What is its height in centimeters? Leave
the answer in terms of .
Answer:
1.27cm
Step-by-step explanation:
Volume(v) =100 cm
Radius(r) =5cm
Height(h) =?
Now,
Volume of cylinder (v) =¶r^2h
100 =22/7*5*5*h
100=78.57h
H=100/78.57
H=1.27cm
Height of cylinder is 1.27cm
please help meeeee..... you already know that ill mark brainliest.
Hello :D
To work this out you need to add everything up.
3 + 6.3 = 9.3
9.3 + 4.5 = 13.8
18.6 - 13.8 = 4.8
N = 4.8
Solve each equation. Be sure to check for extraneous solutions 53=5|p-4|+8
write .0015 in scientific notation please help
0.0015 in scientific notation
= 1.5 × 10-3
1.5×10^3
hope i helped!
m - 4 = 2m
Check your solution if possible
Answer:
m - 4m = 2m
-4 = 2m -m
- 2 = m
Answer:
m = -4
Step-by-step explanation:
Add 4 to both sides of the equation
Simplify
Add the numbers
= 2 + 4
Subtract 2 from both sides of the equation
=2+4
−2=2+4−2
Simplify
Divide both sides of the equation by the same term
Simplify
Simplify (4x - 6) + (3x + 6).
O 7x
O 7x - 12
Ох
O 7x + 12
Answer:
(4x-6)+(3x+6)
=4x-6+3x+6
=7x
Answer:
7x
Step-by-step explanation:
[tex](4x - 6) + (3x + 6)[/tex]
[tex]4x - 6 + (3x + 6)[/tex]
[tex]4x - 6 + 3x + 6[/tex]
[tex]4x + 3x[/tex]
[tex] = 7x[/tex]
45. ART The area of a square painting is 3600 square inches. Find the side
length of the painting.
The first side of a triangle has length 3y + 5. The second side's length is y - 4. The third side's length is 6y. Write the perimeter in simplified form.
Answer:
(3y + 5) + (y - 4) + 6y
4y + 1 + 6y
10y + 1
(Not sure)
Write in expanded form
0.98
1.32
Answer:
1.32 = (1 * 100) + (3 * 1/101) + (2 * 1/102)
1.32 = (1 * 1) + (3 * 1/10) + (2 * 1/100)
1.32 = 1 + 3/10 + 2/100
1.32 = 1 + 0.3 + 0.02
Step-by-step explanation:
Find the Circumference of The Circle with Radius 3.5cm
Answer:
21.99cm
2pier
have a good day ❤️
[tex]\sqrt{x + 7 + 7 = 12[/tex]
Answer:
-2
Step-by-step explanation:
7 +7= 14. 14 + -2 = 12
find the simplest answer for 3% of 400
Answer:
3% of 400 is equal to 12
Step-by-step explanation:
Solving these kinds of problems is actually quite simple. For this one you would simply multiply 0.03 by 400 because 0.03 is the decimal form of 3%.
Hope that helps!
expand and simplify- 2(2x+3)+3(5x+4)
Answer:
11x+6
Step-by-step explanation:
If in ftont of bracket is -2 :
[tex]-2(2x+3)+3(5x+4)=\\\\=-4x-6+15x+12=\\\\=-4x+15x-6+12=\boxed{11x+6}[/tex]
If in front of bracket is 2 :
[tex]2(2x+3)+3(5x+4)=\\\\=4x+6+15x+12=\\\\=4x+15x+6+12=\boxed{19x+18}[/tex]
Classify the following as an algebraic expression, a mathematical expression, an equation, or an inequality.
15+2(9-4)
A. Mathematical expression
B. Equation
C. inequality
D. Algebraic expression
You bake a batch of muffins. You freeze 6 muffins and share the rest equally among yourself and 2 friends. Write an expression that can be used to determine the number of muffins,m, each friend gets
Answer:
[tex]m=\displaystyle \frac{t-6}{3}[/tex]
Step-by-step explanation:
Hi there!
Let t equal the total number of muffins.
[tex]t-6[/tex] ⇒ This represents freezing the 6 muffins
[tex]\displaystyle \frac{t-6}{3}[/tex] ⇒ This represents sharing the remaining muffins among 3 people
Therefore, the expression would be [tex]\displaystyle \frac{t-6}{3}[/tex].
If you would like to change this into an equation, it would be [tex]m=\displaystyle \frac{t-6}{3}[/tex], where m is the number of muffins that each person gets.
I hope this helps!
If (89)p = 818, what is the value of p?
Answer:
sorry if this is wrong but i think its 9 17/89
