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jok3333 [9.3K]
3 years ago
6

Whats the exspression equivalent to (-2x + 8.1y)

Mathematics
1 answer:
Simora [160]3 years ago
8 0

Answer:

b. 7x + 2.8y

Step-by-step explanation:

distribute the negative sign:

= -2x + 8.1 + -1(-9x + 5.3y)

= -2x + 8.1 + -1(-9x) + -1(5.3y)

= -2x + 8.1 +9x + -5.3y

combine like terms:

= (-2x + 9x) + (8.1 + -5.3y)

= 7x + 2.8y

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Answer:

390cm³

Step-by-step explanation:

6cm×5cm×13cm= 30cm²×13cm= 390cm³

7 0
3 years ago
Given the function defined in the table below, find the average rate of change, in simplest form, of the function over the inter
worty [1.4K]
The answer would be 7
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3 years ago
A large recipe calls for 3.18kg of sugar. Your bags of sugar are measured in pounds (lb). Remembering that 1kg=2.20462lb, how ma
evablogger [386]

Answer:

You will need to buy 5 1.50lb bags of sugar to make your recipe.

Step-by-step explanation:

This problem can be solved by consecutive rules of three.

A large recipe calls for 3.18kg of sugar. Your bags of sugar are measured in pounds (lb). Remembering that 1kg=2.20462lb

How many lbs of sugar you will need to buy?

1 kg - 2.20462lb

3.18 kg - x lb

x = 3.18*2.20462

x = 7 lb

How many 1.50lb bags of sugar will you need to buy to make your recipe?

1 bag - 1.50 lb

x bags - 7 lb

1.5x = 7

x = \frac{7}{1.5}

x = 4.67

You will need to buy 5 1.50lb bags of sugar to make your recipe.

8 0
3 years ago
The number of students enrolled at a community college increased by 12% from last year to this year. The enrollment last year wa
timurjin [86]

Answer:

17,360

Step-by-step explanation:

12% of 15,500 = 1,860

15,500 + 1,860

6 0
3 years ago
What is the value of g?
saveliy_v [14]
Apply the Law of Sines here.    

    54 yd                     g
----------------- = ------------------
 sin (58 deg)       sin (74 deg)

Do the math.  Cross mult. first, and then solve for g:
                                          
                                           54 sin 74
54 sin 74 = g sin 58;   g = --------------- = ?
                                            sin 58
5 0
4 years ago
Read 2 more answers
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