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Sloan [31]
2 years ago
9

Cindy needs to order 150 invitations which are sold in packs of 20. How many packs does Cindy need to buy?

Mathematics
1 answer:
sp2606 [1]2 years ago
8 0

Cindy needs to buy 8 packs of invitations.

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A student government organization is selling Christmas trees as a fundraiser. On Friday, they sold 5 noble fir trees and 3 dougl
gtnhenbr [62]
Lets x is price of noble fir trees and y - is price for douglas fir trees
students got 5x+3y=420$ on friday
and 12x+9y=1080
now we need just solve the system of equations
5x+3y=420 - multiply by 3
12x+9y=1080

15x+9y=1260
12x+9y=1080
substract second equation from first
15x-12x=1260-1080
3x=180 x=60$ - the price of noble fir trees

put value x=60 in first equation 5x+3y=420
5*60+3y=420
300+3y=420
3y=120 y=40$ - price of Douglas fir trees

Answer: Noble fir trees cost $60 and Douglas fir trees cost $40
8 0
3 years ago
How to simplify 8 10/8
Zigmanuir [339]

Answer:

74/8

Step-by-step explanation:

8 10

   8

Multiply The denominator by whole number then add numerator which is 74

then put that number over the original denominator which is 8

6 0
3 years ago
Read 2 more answers
1/4 divided by 5/6 = 1/a× b/c
motikmotik

Answer:

a= 24b/5c b= 5ac/24 c= 24b/5a

Step-by-step explanation:

Put the problem into a calculator that can solve with variables.

8 0
2 years ago
Which is not a benefit for direct deposit?
vampirchik [111]
C. You can plan when you a paying bills.
I think this is the answer because it does not have a direct correlation to direct deposits to me.
3 0
2 years ago
Read 2 more answers
This partial circle has a radius of 11 inches.
Alecsey [184]
First, find the area of the circle
 pie*radius to the power of 2(radius*raduis)
(11*11=121) 121*3.14=379.94
take your answer and divide it by 4 we would divide it by 2 if we had a semicircle but since we have a 3/4 circle we divide by 4 and then times the Quotient by 3
379.94/4=94.985
94.985*3=284.955
Round ur answer to the nearest tenth so it equals 284.96
4 0
2 years ago
Read 2 more answers
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