Answer:
So, area of quadrilateral ABCD = (½ × AC × BE) + (½ × AC × DF) We can calculate the area of different types of quadrilaterals by using the given formula. For the quadrilateral ABCD, if we use centimeter as the unit of measurement, the unit of measure for the area will be cm2 .
I hope it's helpful!
Answer:
Step-by-step explanation:
R u asking for formula ?
If so then,
1/2 x (h1+h1 )d
which is half the sum of height 1 and 2 multipied by daigonal
what is the volume of the sphere?
The price of a washing machine is reduced by 20% for a sale.
Afterwards, the sale price is increased by 30%.
Joachim says
The washing machine is now 10% more expensive than before the sale.
Explain Joachim’s error and work out the correct percentage change in the price of the washing machine from before the sale to after the sale
Answer:
1) Joachim's error is in applying the 30% increase to the initial price of the washing machine, 'x', rather than the reduced price of the washing machine for the sale, which is 0.8·x
2) The correct percentage change in price is 4%
Step-by-step explanation:
The price of the washing machine has the following parameters;
The percentage reduction of the price of the washing machine for a sale = 20%
The percentage by which the price is increased afterwards = 30%
Let 'x' represent the initial selling price of the washing machine before the price decrease, and let 'P' represent the sale price after the price increase, we have;
The price after the 20% reduction = x - 20% × x = x - (20/100) × x = 0.8·x
The price after the 30% increase after the sale = 0.8·x + 30% × 0.8·x = 0.8·x + 30/100 × 0.8×x = 0.8·x + 0.3 × 0.8·x = 1.04·x = x + 0.04·x = x + (4/100) × x = x + 4% × x
Therefore, Joachim's error is in applying the 30% increase to the initial price of the washing machine, 'x', rather than the reduced price of the washing machine for the sale, which is 0.8·x
2) The percentage change in the price after the sale is given as follows;
Price of the washing machine after the sale, P = 1.04·x = (104/100) × x = 104% × x
∴ P = 100%x + 4%x = (100/100)·x + 4%x = x + 4%
The percentage change in price = P - x = x + 4% - x = 4%
The correct percentage change in price = 4%
Ethan surveyed 780 of the students in his school about their favorite color. 507 students said their favorite color was purple. What percentage of the surveyed students said their favorite color was purple?
Help asap!! (i’ll give u brainliest)
Answer: 3
Step-by-step explanation:
2x + 3 + 4x + 6 + 12x + 18 = 477
Please answer with solving steps. Thanks guys :)
Answer:
x= 25
Step-by-step explanation:
2x + 3 + 4x + 6 + 12x + 18 = 477
FIRST combine like terms
take all "x"
2+4+12= 18x
take all whole numbers
3+6+18= 27
18x+27= 477
now solve for x
-27 on both sides
18x= 450
÷18 on both sides
x= 25
yoi have to add the variables so 2x +4x+12x=18x and concombine like terms so 3 +6+18=27 so you have to put tbat together 18x+27=477 then you have to get x alone so you have to subtract 27 in both sides 27-27=0 then 477-27=450 then you have to do the oppsite of multiply so you have to divide 18x/18x and 450/18x 18÷18 is 1 so you just have to put x and then divide 450÷18=25 so x=25.
Find the value of x.
B
х
6
2
A
D
3
С
Answer:
the answer is 4
Step-by-step explanation:
A triangle has side lengths of 21 cm and 17 cm. What is the range of values possible for the 3rd side?
Answer:
[tex]4 < x < 38[/tex]
Step-by-step explanation:
[tex]21 - 17 = 4[/tex]
[tex]21 + 17 = 38[/tex]
The range of 3rd side is in between 4 to 38.
[tex]4 < side 3 < 38[/tex]
A triangle has side lengths of 21 cm and 17 cm
side 1 = 21 cm
side 2 = 17 cm
What is the relation between side of triangle?
The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
Therefore,
length of side 3
[tex]21-17 < side 3 < 21+17[/tex]
[tex]4 < side 3 < 38[/tex]
Therefore the range of 3rd side is in between 4 to 38.
[tex]4 < side 3 < 38[/tex]
To learn more about the side of triangle visit:
https://brainly.com/question/20734777
LOTS OF POINTS hard math though
Answer:
n o
Step-by-step explanation:
A rectangle is 40 yards long and 30 yards wide. What is the length of the diagonal that cuts through the center?
Answer:
it should be 50
Step-by-step explanation:
Using the pythagorean theorem c = [tex]\sqrt{a^{2} +b^{2} }[/tex] we get 50
Find the area of a trapezoidal tabletop, if its parallel sides are 2 m and 3 m long and the perpendicular distance
between them is l m.
Answer:
The area of the trapezoidal table top is 2.5 m²
Step-by-step explanation:
The area, A, of a trapezoid is given as half times the sum of the parallel side multiplied by the perpendicular distance between them
Therefore, we have;
[tex]A = \dfrac{a + b}{2} \times h[/tex]
The given parameters of the trapezoidal table top are;
The length of the parallel sides = 2 m and 3 m
The length of the perpendicular distance between the parallel sides = 1 m
Where, for the rectangular table top, we have;
'a', and 'b' = The lengths of the parallel sides = 2 m and 3 m respectively
h = The perpendicular distance between the parallel sides = 1 m
By substituting in the values, we have;
[tex]A = \dfrac{2 \ m + 3 \ m}{2} \times 1 \ m = 2.5 \ m^2[/tex]
The area of the trapezoidal table top, A = 2.5 m².
Find profit percentage when S.P. of the article is Rs. 560 and C.P. is Rs. 500,with process
Answer:
first find the profit
profit % is the profit over CP times 100
Identify the correct binder for each paint.
A common binder for watercolor paints is 1.gum Arabic 2.egg yolk 3. Polymers . For tempera, it is 1.linseed oil 2.egg yolk 3.gum Arabic
Answer:
egg yolk
Step-by-step explanation:
A common binder for watercolor paints is 1) gum arabic . For tempera, it is
2) egg yolk.
7,650÷_________=7.65
Answer:
The answer is 58,522.5
Step-by-step explanation:
You multiply 7.65 by 7,650 and get 58,522.5. And when you plug it back in it’s correct.
Multiply (3x + 2) (4x-5)
Answer:
12x^2-7x-10
Step-by-step explanation:
I did binomial into binomial method
3x(4x-5)+2(4x-5)
12x^2-15x+8x-10
12x^2+(-15+8)x-10
12x^2-7x-10
Find the sum using fraction bars or a paper and pencil. Write your answer in simplest form. 5/6 + 3/9
₁ 1/6
21/18
8/15
₁ 4/9
The tiny numbers are the whole numbers
Help me asap please
⇔ω⇔
ФωФ
Answer:
8/15 bc im beautiful
Step-by-step explanation:
Answer:
imma need my points back
Step-by-step explanation:
Independent Practice
In 2002, the price of mailing a letter was $.34 for the first ounce or part of an ounce and $.21 for each ounce or part of an ounce after the first ounce.
Write a rule to describe the function. How much did it cost to mail a 4-ounce letter?
A.
f(x) = 0.21(x – 1); $.63
B.
f(x) = 0.34 + 0.21x; $1.18
C.
f(x) = 0.34 + 0.21(x – 1); $.97
D.
f(x) = 0.34x + 0.21(x – 1); $1.99
Answer:
C.
f(x) = 0.34 + 0.21(x – 1); $.97
Step-by-step explanation:
In 2002, the price of mailing a letter was $.34 for the first ounce and $.21 for each ounce after the first ounce. Write a rule to describe the function.
---------------------------------------
Price = 0.34 + 0.21(x-1) where x is the weight of the item in ounces.
Let +x+ = weight of the letter in ounces
Let +P+ = the price of mailing the letter in dollars
---------------------------------------
+P+=+.34+%2B+.21%2A%28+x+-+1+%29+
( +x+%3E=+1+ )
-----------------------------
A 4-ounce letter costs
+P+=+.34+%2B++%28+4+-+1+%29%2A.21+
+P+=+.34+%2B+.63+
+P+=+.97+
It costs $.97
how much sit-ups can you do in 1 minutes?
Help pleaseeee IM TIMEDDDDD
Answer:
D.
Step-by-step explanation:
Line D. shows the numbers less than 4. Trust me on this.
♡ ∩_∩
（„• ֊ •„)♡
┏━∪∪━━━━┓
♡ good luck 。 ♡
┗━━━━━━━┛
Please Help 1 24 + r ; r = 9 2 2a + 3 ; a = 10 3 Bc + 12.3 ; b = 9, c = 4 4 p ÷ q ; p = 24, q = 8 5 4c - 7.8 ; c = 4 6 c - a ; a = 3, c = 17 7 a ÷ 2c ; a = 20, c = 2 8 3x - 14 ; x = 5 9 1.5 + y² ; y = 6 10 t/5 + 6 ; t = 45
Answer:
See solution below
Step-by-step explanation:
Given the following expression
1) 24+r
If r = 9
24 + r = 24+9
= 33
2) 2a+3
If a = 10
Substitute
2(10)+3
= 20+3
= 23
3) BC+12.3
b = 9
c = 4
Substitute
= 9(4)+12.3
= 36+12.3
= 48.3
4) p÷q
Given p = 24 and q = 8
p÷q = 24÷8
p÷q = 3
5) 4c-7.8
If c = 4
Substitute
= 4(4)-7.8
= 16-7.8
= 8.2
6) c-a
a = 3
c = 17
Substitute
= 17-3
= 14
Hence c-a = 14
7) a ÷ 2c ; a = 20, c = 2
Substitute
a÷2c
= a/2c
= 20/2(2)
= 20/4
= 5
8) 3x-14
If x = 5
Substitute
= 3(5)-14
= 15-14
= 1
9) 1.5 + y² ; y = 6
Substitute
= 1.5+6²
= 1.5+36
= 37.5
10) t/5 + 6 ; t = 45
substitute the value of t given into the expression
= 45/5 + 6
= 9 + 6
= 15
5x to the second power minus 5x
Answer:
the answer us 20x
Step-by-step explanation:
5x^2-5x
25x-5x
20x
Find the height x of the triangle? 90 100
Please help me will give Brain!
Answer:
?=104
Step-by-step explanation:
180-76=104
Suppose you deposited $100 in a savings account 4 years ago. The simple interest rate is 2.9%. The interest that you earned in those 4 years is $11.60. Which of the following is/are true?
A. t=4
B. p=2.9%
C. I=11.60
D. r=100
Answer:
T=4
l=11.60
Step-by-step explanation:
T is for time,and time given is 4.
so t=4 years
and Interest given is 11.60 bucks
so I=11.60
keep in mind that PRINCIPAL IS NEVER A PERFENTAGE!
RATE IS ALWAYS A PERCENTAGE!
Here, principal is 100 bucks and rate is 2.9%
also keep in mind that principal isnalways greater than interest.
thank you
The soccer club held a spaghetti dinner. They sold 39 child tickets for $3.75 each and 27 adult tickets for $5.95 each. The amount for 11 child tickets was refunded. Estimate the amount of income received by the soccer club.
Answer:
265.65
Step-by-step explanation:
(3.75*39)+(27*5.95)-(11*3.75) = 265.65
answer this and ill give brainliest
Answer:
-4.65< -4 and 2/5
Step-by-step explanation:
To solve, this we can convert the fraction -4 and 2/5 into a decimal so that the values can be more easily compared. When we do this, we get the result that -4 and 2/5 equals -4.4. Now we can clearly see which value is greater because they are written in the same form:
-4.65<-4.4
-4.65<-4 2/5
Answer:
<
Step-by-step explanation:
You have to convert the mixed number by multiplying the whole number by the denominator, adding the numerator, and dividing the sum by the denominator.
4x5=20
20+2=22
22÷5=4.4
-4.65 < -4.40
What is the slope of the line shown below?
shld be either c or d I don't rlly know
WILL GIVE BRAINLIEST AND 20 POINTS!
Find m∠x given m∠y = 25°.
Step-by-step explanation:
If <y=A
In this case 360-25=335
What is included in a total monthly mortgage payment?
O A. Principal, investment, taxes, and insurance
B. Payment, interest, taxes, and insurance
O C. Principal, interest, taxes, and insurance
D. Principal, interest, title, and insurance
Total monthly mortgage payment includes option C. Principal, interest, taxes, and insurance.
What is Mortgage Payment?Mortgage is defined as a type of loan which are typically used to finance or maintain a property which can be land or other kinds of rentals.
They are referred to as secured loans.
Total monthly mortgage payment consist of mainly four components.
They are :
Principal InterestTaxes InsuranceThe main components are principal and interest.
Principal amount is the amount that you borrowed for your purpose.
Interest payment is the amount that the lender charges which varies.
Hence the option is C.
To learn more about Mortgage Payments, click :
https://brainly.com/question/24174269
#SPJ7
what is the total payment made by Kay's parents on her 15th birthday
A . 15 B. 30 C. 60 D. 75what is the total payment what
Answer:
D
Step-by-step explanation:
the question is not understandable, why not try explain a little longer so that it can be clear.
A group of 150 dancers are auditioning for a dance show. 62% of the dancers trying out did not get on the show. How many dancers got on the show?
Answer:
57
Step-by-step explanation:
you can. go with the.answer