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Katena32 [7]
3 years ago
10

I don’t know how to solve this

Mathematics
2 answers:
LuckyWell [14K]3 years ago
7 0

Answer:

(3x-5)x(3x+5)

Step-by-step explanation:

Calcula el producto

marshall27 [118]3 years ago
7 0
I think the answer is 7?
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Ms. Dunn spent 10.70 buying slices of pie and cookies. She bought a total of 24 items. A slice of pie costs 0.80 and a cookie co
Rus_ich [418]

Answer:

Ms. Dunn bought 7 slices of pie.

Step-by-step explanation:

With the information provided, you can write the following equations:

x+y=24 (1)

0.80x+0.30y=10.70 (2), where:

x is the number of slices of pie

y is the number of cookies

First, you can solve for x in (1):

x=24-y (3)

Next, you have to replace (3) in (2) and solve for y:

0.80(24-y)+0.30y=10.70

19.2-0.80y+0.30y=10.70

19.2-10.70=080y-0.30y

8.5=0.5y

y=8.5/0.5

y=17

Finally, you can replace the value of y in (3) to be able to find the value of x:

x=24-17

x=7

According to this, the answer is that Ms. Dunn bought 7 slices of pie.

7 0
3 years ago
Find Y When x=2 y=5x-9​
nadya68 [22]
5*2-9 = y

10-9= 1
y=1
6 0
3 years ago
Read 2 more answers
Are the two expressions equivalent 5(3x+8) 8x+8 when x=10
Brums [2.3K]

Answer:no

Step-by-step explanation:

5(3(10)+8)

5(30+8)

5(38)=190

8(10)+8

80+8

88

88≠190 so no

7 0
3 years ago
Read 2 more answers
PLEASE HELP ME BAD AT GEOMETRY PLEASE THANKS A WHOLE BUNCH
Setler [38]
V = π r² h

V = π (4)² 8
 
V = 402.12

Hope this helps :)
5 0
3 years ago
What is the square of 215
Natali5045456 [20]
Aprox 14.663
now i need to fill this to 20 letters
hey how ya doin
i thing this is enough


6 0
2 years ago
Read 2 more answers
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