MATHEMATICS MIDDLE SCHOOL

What is the area? Plz help fast I will mark brainliest ASAP!!

Answers

Answer 1

Answer:

Answer:

≈ 44.65(7) m²

Step-by-step explanation:

A = π·r²·80°/360° = 3.14×64×80/360 ≈ 44.65(7) m²

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A sporting goods store sold 2.5 times as many footballs as basketballs last year. Which statement is true?The ratio of footballs to basketballs is 2:5. If a total of 35 footballs and basketballs were sold, 10 of them were footballs. There were 5 footballs sold for every 2 basketballs. The ratio of basketballs to footballs is 5:2.

20 cups equal how many quarts

Answers

4 cups = a quart
divide the number of cups by 4 to get the number of cups
20/ 4= 5 quarts

Answer:

20/4= 5 quarts

Alena is packing a box that has a height of one inch more than the width and a length of three inches more than the width, as shown in the diagram below. Write a polynomial expression, In simplified form, that represents the volume of the box.(I need help...)

Answers

Answer:

The polynomial that represent the volume of the box is $V=(x^(3)+4x^(2)+3x)\ in^(3)$

Step-by-step explanation:

we know that

The volume of the box is equal to

$V=LWH$

we have

$L=(x+3)\ in$

$W=x\ in$

$H=(x+1)\ in$

substitute in the formula

$V=(x+3)(x)(x+1)\nV=(x^(2) +3x)(x+1)\nV=x^(3)+x^(2) +3x^(2) +3x\n V=(x^(3)+4x^(2)+3x)\ in^(3)$

a CD player regularly sells for $80. It is on sale for 20% off. What is the sale price of the CD player?

Answers

-_______________________________

Hey,

Solution,

Markedprice(MP)=$80

Discount percent=20%

Now,

Discountamount=discountpercentofMP

=20%of80

=20/100*80

=$16

Again,

Sellingprice(SP)=MP-Discount amount

=$80-$16

=$64

So,thesalepriceoftheCDplayeris$64.

Hopeithelps...

Goodluckonyourassignment....

Staysafe...

_______________________________

If the CD player sells regularly for $80 but is on sale for 20% off the sales price will now be $64. The equation used is ? x 0.8 = 20%. Think of teams of 10. 8+2 = 10 right? Now put transfer that to hundreds 80+20 = 100 or in this case 1 whole number. To get a certain percent off you need to x it by 0. (Other part of teams of 10) so if it was 63% off you would do ? x 0.37. If you want to keep it simple though just times the original number, in this case 80, by 0. And then the percentage ( 80 x 0.60 ) that’ll give you how much to take off of $80 to reach 20% off.

A rectangle has a length 3 feet and width 1/4 foot . what is the area of the rectangle?

Answers

Area of the given rectangle is 0.75 inch²

Given that;

Length of rectangle = 3 feet

Width of rectangle = 1/4 feet

Find:

Area of rectangle

Computation:

Area of rectangle = Length × Width

Area of rectangle = 3 × (1/4)

Area of rectangle = 3 / 4

Area of rectangle = 0.75 inch²

Learn more:

brainly.com/question/11692388?referrer=searchResults

when finding the area of a rectangle, you do area=length*width
length= 3
width= 1/4
a= 1/4*3
a=3/4 square feet

Justin is 2 years older than one third marcellas age. aimee is four years younger then 2 times Justins age.Define a variable and wrute an expression to represent justins age. The. Justins age and Aimees age if Marcella is 63 years old

Answers

j=justin
marcella=m
aimee=a

j is 2 older than 1/3 of m
'of' means multiply
j=2+1/3m

a is 4 younger than 2 times j
a=-4+2j

represent justin's age?
dunno

ok so I can solve if I know m=63
j=2+1/3m
j=2+1/3(63)
j=2+21
j=23
subsitute
a=-4+2j
a=-4+2(23)
a=-4+46
a=42

justin is 23 and aimee is 42 if marcella is 63

Bruno is designing his next skateboard. The skateboard store has 3 types of grip tape, 13 types of decks, 7 types of trucks, 4 types of bearings, and 2 types of wheels. How many different skateboards can Bruno create?

Answers

Answer:

2,184 different skateboards

Step-by-step explanation:

Use the fundamental counting principle to solve this. This is where you multiply all possible choices together to get the total...

(3)(13)(7)(4)(2) = 2,184 different choices

He can choose 1 type of grip tape and still have 13 choices for decks, 7 choices for trucks, 4 choices for bearings and 2 choices for wheels. With 3 choices for tape in the first place, he has

(3)(13)(7)(4)(2) combinations he can make

Answer:

2,184 different skateboards

Step-by-step explanation:

Hope this helps!

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