3 years ago

Combining like terms with

Mathematics

1 answer:

DochEvi [55]3 years ago

6 0

Answer:

$6$

Step-by-step explanation:

$3 +2+ ( - 5) +6 \\ 5 - 5 + 6 \\ 0 + 6 = 6$

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On a map,the scale shown is 1inch:5miles.If an island is 75 square inches on the map,what is the actual area of the island?

Andreyy89

1 inch = 5 miles

1 square inch =25 square miles

25 square miles x 75 square inches = 1,875 square miles

Answer : 1,875 square miles

5 0

3 years ago

What is the value of

vladimir1956 [14]

The answer is x = -19

Solution:

9(x + 1) = -162

Expand:

9x + 9 = -162
9x = -162 - 9
9x = -171
x = -171/9
x = -19

6 0

2 years ago

A student has 10 coins in her pocket that have a value of $0.85. The coins are either

il63 [147K]

Answer:

$\left\{\begin{matrix}x+y=10\\ 0.05x+0.10y=0.85\end{matrix}\right.$

Step-by-step explanation:

<u>System of Equations</u>

Let's call:

x = number of nickels in the student's pocket

y = number of dimes in the student's pocket

Each nickel has a value of $0.05, so x nickels have a value of 0.05x

Each dime has a value of $0.10, so y dimes have a value of 0.10y

The student has a total of 10 coins, thus:

$x+y=10$

The total value of the coins is $0.85, thus

$0.05x+0.10y=0.85$

The system of linear equations that represents this scenario is:

$\left\{\begin{matrix}x+y=10\\ 0.05x+0.10y=0.85\end{matrix}\right.$

5 0

3 years ago

The sum of two numbers is 18. The larger number is twice as large as the smaller number. What are the two numbers? Please explai

snow_tiger [21]

The two numbers are 12 and 16. 12 + 6 = 18. 6 doubled is 12. 12 plus 6 equals 18.

7 0

3 years ago

From data gathered in the period 2008−2012, the yearly value of U.S. exports can be modeled by the function E(x) = −228x3 + 2,25

tester [92]

Answer:you got this:)

Step-by-step explanation:

5 0

3 years ago