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Ostrovityanka [42]
3 years ago
7

PLEASE HELP

Mathematics
1 answer:
Gelneren [198K]3 years ago
4 0

Step-by-step explanation:

8.9x-5 and -6.8x+8

8.9-6.8 + -5+8

2.1x+3

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(xy + 9y + 2) and (xy – 3)
Bezzdna [24]

Answer:

x^2y^2 +9xy^2-xy-27y-6

Step-by-step explanation:

(xy+9y+2) (xy-3)

Each term of second bracket will be multiplied with the terms of first bracket

= xy(xy+9y+2) -3(xy+9y+2)

= x^2y^2+9xy^2+2xy-3xy-27y-6

=x^2y^2+9xy^2-xy-27y-6

4 0
3 years ago
Sophie Ruth is eating a
Firdavs [7]

Answer:

15 grams

Step-by-step explanation:

There is a 50 gram chocolate bar that contains 30% cocoa. So we are basically finding 30% of 50. We break 30 into 3*10 and 50 into 5*10. 5*3 = 15.

Therefore, there are 15 grams of cocoa in the chocolate bar.

I hope this helps.

6 0
2 years ago
Andy spent $55 in all to purchase 20 two-dollar and five-dollar toys. How many two-
Masja [62]
I’m not sure but if I’m right Jen it will be 1 two dollar toy and 5 five dollar toy
7 0
2 years ago
(-5)+(+7)=( ____) ???
Anni [7]

Answer: 2

Step-by-step explanation:

7 0
3 years ago
Xavier runs 0.75 miles each day .How far has he won at the end of 6 days?
Elanso [62]

Answer:

4.5 miles

Step-by-step explanation:

You times .75 and 6 and you should get 4.5 miles

6 0
3 years ago
Read 2 more answers
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