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klasskru [66]
2 years ago
7

Margo said that the answer to number 5 was that they were both correct in this case: 3n - 5 + n and 3n - (5 + n). Is Margo corre

ct or incorrect, and why?
Mathematics
1 answer:
lutik1710 [3]2 years ago
4 0

Answer:The equation is 7 n 2 = 5(k - m). b. Fifteen times a number subtracted from 80 is 25. You can rewrite the verbal sentence so it is easier to translate.

78 pages

Step-by-step explanation:

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A restaurant adds a 20% tip to the bills of parties of 6 or more people. Suppose a server waits on five such tables. The bill
castortr0y [4]

Answer:

$218.70

Step-by-step explanation:

You need to first convert the percentage to the decimal.

20% = 0.2

Now, you need to find 20% of each bill by multiplying each bill by 0.2.

0.2(185.45) + 0.2(205.20) + 0.2(195.05) + 0.2(245.80) + 0.2(262.00)

Because of the distributive property, you can add up the bills and multiply the sum by 0.2.

0.2(185.45 + 205.20 + 195.05 + 245.80 + 262.00)

0.2(1093.50)

218.7

The waiter made $218.70 in tips.

4 0
2 years ago
Solve the system of equations.<br> 5y – 4c = -7<br> 2y + 4x = 14
Lesechka [4]

c=\frac{5y}{4\\} + \frac{7}{4\\}

x=-\frac{y}{2} + \frac{7}{2}

Step-by-step explanation:

if 'c' is meant to be another 'x' the answer is

(3, 1)

x = 3,y = 1

4 0
3 years ago
Help im brain dead i dont understand
Liono4ka [1.6K]

Answer:

A

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
(rs) (4) = (r/s) (3) =
Dmitriy789 [7]

Answer:

(rs) (4) = (r/s)(3) = (r)(s)(2)

4 0
3 years ago
25% of the students attended the school dance. if 32 attended the dance, how many students are there in all?
nadya68 [22]

Answer:

128 students in total

Step-by-step explanation:

25/100 = 1/4

1/4 = 32/ x

1 x 32

4 0
3 years ago
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