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3 years ago

1.

1 answer:

5 0

First, you divide 2,727 with 27 in order to get how many gallons you use of gas and how many multiples of 27 there are in 2,727. When you divide that, you'll get 101. Then, with that number, you multiply 101 with 4.04. Finally, you'll get $408.04 as your answer or d. Hope this was helpful!!

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In a mixture of concrete, there are fourfour lb of cement mix for each pound of gravel. If the mixture contains a total of 2952

Anton [14]

Answer: there are 59059 lbs of gravel.

Step-by-step explanation:

In a mixture of concrete, there are four lbs of cement mix for each pound of gravel. This means that eight lbs of cement would be mixed for 2 pounds of gravel and 12 lbs of cement would be mixed for 3 pounds of gravel and 12. Therefore, the constant ratio of cement to gravel is 4:1

The total ratio is 4 + 1 = 5

If the mixture contains a total of 295295 lb of these two ingredients, then the number of pounds of gravel that are there is

1/5 × 295295 = 59059 lbs

3 0

3 years ago

Why is the sum of two negative numbers not a positive number

pychu [463]

Answer:

because when two negatives are together they can't add

Step-by-step explanation:

because when two negatives are together they can't add no matter if there's an addition sign

7 0

3 years ago

Evaluate each expression. 3^-2

Rus_ich [418]

9 is the answer negatives cancel out creating positve

7 0

3 years ago

Read 2 more answers

Solve the following systems by substitution

Paladinen [302]

Answer:

The answer to your question is below

Step-by-step explanation:

Question 1

x = 5 Equation l

2x + y = 10 Equation ll

- Substitute Equation l in equation ll

2(5) + y = 10

y = 10 - 10

y = 0

- Solution (5, 0)

Question 2

x + 16y = 20 Equation l

x = 4y Equation ll

Substitute equation ll in equation l

4y + 16y = 20

20y = 20

y = 20/20

y = 1

-Find x

x = 4(1)

x = 4

-Solution

(4, 1)

Question 3

2x + 8y = 20 Equation l

x = 2 Equation ll

-Substitute equation ll in equation l

2(2) + 8y = 20

4 + 8y = 20

8y = 20 - 4

8y = 16

y = 16/8

y = 2

- Solution

(2, 2)

8 0

3 years ago

What is the value of the expression below when x=3

Ad libitum [116K]

Answer:

There is no image

Step-by-step explanation:

Try isolating the variable in the equation

4 0

3 years ago