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stellarik [79]
3 years ago
6

I need help plz cmon

Mathematics
1 answer:
PolarNik [594]3 years ago
7 0

Answer: 84

Step-by-step explanation:

4 x 21 is 84 a fraction can be simplified and be a whole number so if 84 divided by 4 it will be 21 if you want to write it as a fraction it will be 21/1 which is equal to 21

Did it help? :)

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A conic section whose focus is at the pole has the equation r=2/1+cosθ . Which of the following equations is the directrix of th
julsineya [31]

Answer:

yes its the second

6 0
4 years ago
A music festival charges $54.95 per ticket sold on the day of the event. A ticket purchases before the festival costs only $39.9
Wewaii [24]
B=number of ticets sold before
a=number of tickets sold after

cost of a ticket=number of tickets times cost per ticket
beforecost=39.95b
aftercost=54.95a

total cost=925000
39.95b+54.95a=925000

total number tickets=20000
b+a=20000

we have

39.95b+54.95a=925000
b+a=20000
multiply second equation by -39.95 and add to first equatin
39.95b+54.95a=925000
<u>-39.95b-39.95a=-799000 +</u>
0b+15a=126000

15a=126000
divide bot sides by 15
a=8400

sub back
b+a=20000
b+8400=20000
minus 8400 both sides
b=11600




11,600 tickets sold before
8400 tickets sold after
7 0
3 years ago
The ratio of boys to girls at a movie is 4:7. If there are 21 girls, how many boys are at
ArbitrLikvidat [17]
12 boys. 7 * 3 is 21. 21 girls. 4*3 is 12. 12 boys 21 girls
4 0
4 years ago
*HELP ASAP I CAN ONLY DO THIS ONE TIME OR ILL FAIL*
docker41 [41]

Answer:

A

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V= BxHxL divided by 2

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7 0
3 years ago
Read 2 more answers
How many ways can Hannah give three of her eight T-shirts to her younger sister?
prisoha [69]
If Hannah gives her younger sister 3 shirts, it does not matter what order she hands them to her. No matter the order, it will still be the same group of 3 shirt. Since order is not important this problem can be solved using a combination.

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\frac{(8)(7)(6)}{(3)(2)(1)}=(8)(7)=56
7 0
3 years ago
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