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Sergeu [11.5K]
4 years ago
10

Simplify the next two expressions

Mathematics
1 answer:
prisoha [69]4 years ago
4 0
1. 7x-40
2. 8x-30y-10
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a varies directly as b and inversely as the square of c. If a = 197 when b = 5 and c = 5, find a if b = 3 and c = 3
SSSSS [86.1K]
With the information you provided, we can find an equation.

A=kB/(C^2)             (k is a constant)

197= 5k/(5^2)   
197=5k/25
197=k/5
k= 985

So find a if b=3 and c=3

A= 3(985)/(3^2)
A= 2955/9 is your answer.


5 0
4 years ago
A restaurant bill before tax is $15.50. How much is a 15% tip for this bill?
Likurg_2 [28]

Answer:

for 1 person the tip is $2.33

Step-by-step explanation:

6 0
3 years ago
Write an expression for the area of the triangle. Simplify the expression.
Rudik [331]

Answer:

4+ 8y

Step-by-step explanation:

7 0
3 years ago
Fourteen pounds of beans are distributed equally into 10 bags to give out at the food bank. How many pounds of beans are in each
grin007 [14]

Answer:

1.4 pounds

Step-by-step explanation:

to get this ancwer you divide 14 by 10 witch gives you 1.4 pounds

6 0
4 years ago
Stephen was helping make party bags for his little brother’s party. They have to make a total of 10 party bags. They had 34 toy
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