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Ksju [112]
3 years ago
8

-3x-5y=-7 -4x+5y=14 solve by elimination

Mathematics
1 answer:
Ymorist [56]3 years ago
3 0

Answer:

es 3/54 eso da My brother

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What is the value of the expression "two less than six times the difference of a number and five" when n = 9?
Burka [1]

Answer: The value of the expression when n=9 is 22

Step-by-step explanation:

In this case, you need to remember that:

1. Tthe word "less than" indicates a subtraction.

2.  By definition, the "Difference" in the result of a subtraction.

3. The word "times" indicates multiplication,

Based on the information given above, you know that  " Six times the difference of a number and five" can be expressed as:

6(n-5)

Then,  "Two less than six times the difference of a number and five" can be represented with this expression:

6(n-5)-2

Now you can substitute n=9 into the expression and the evaluate in order to find the value of the expression. This is:

6(9-5)-2=6(4)-2=24-2=22

7 0
3 years ago
Triangle UVW has a perimeter of 11.5 units. Solve for y.
Pavlova-9 [17]

Answer:

y = 4

Step-by-step explanation:

11.5 - 4 - 3.5 = 4

3 0
3 years ago
If you are single with no children, earn $36,000/year and set a savings goal of 5% per month, each month you should save _______
zimovet [89]

Answer:

Each month you should save $ 150

Step-by-step explanation:

First, the earnings are given per year, so we need to transform $36000/year into dollars per month. So, using a rule of three as following, we obtain:

$ 36,000  ------------- 12 months

     X         -------------- 1 month

Solving for X, we get:

X=\frac{36000*1}{12}

X = $ 3,000 /month

it means that earn $36,000/year is equivalent to earn $3,000/month

Now, we need to find the 5% of $3,000, this can be calculated making the following multiplication:

3,000*\frac{5}{100} = 150

Then, each month you should save $150

 

3 0
4 years ago
A new taxi company, Littleton Cabs, just opened in town. A cab ride for mile costs 8.5+2 m dollars.Polly took a 14-mile cab ride
victus00 [196]

Answer:

10.5 this is the answer

Step-by-step explanation:

10.5

3 0
3 years ago
Suzanna need a borad that is a least 3.5 meters long.Is the board long enogh
Vlad1618 [11]

Answer:

sweet god yes it is unless she 12 feet tall then no

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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