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aleksandr82 [10.1K]
3 years ago
14

Solve the system using elimination. y – x = 13 7y + x = 11

Mathematics
1 answer:
Eva8 [605]3 years ago
6 0

Answer:

x= -10 ; y= 3

Step-by-step explanation:

see the picture

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–2.5p – 20 = 9p + 37.5
Elenna [48]

Answer:

p = - 5

Step-by-step explanation:

–2.5p – 20 = 9p + 37.5

combine like terms:

- 2.5p - 9p = 37.5 + 20

simplify:

- 11.5p = 57.5

p = 57.5 / -11.5

p = - 5

6 0
3 years ago
Read 2 more answers
George bought 2.5 pounds of each type of fruit shown on the sign what was the total cost of the fruit he bought
Akimi4 [234]

Answer:

it would be $2

Step-by-step explanation:

4 0
3 years ago
(1 point) A tank contains 2640 L of pure water. A solution that contains 0.09 kg of sugar per liter enters the tank at the rate
OverLord2011 [107]

Answer:

t=0      Sugar = 0 Kg

t=1min Sugar=0.27 Kg

Step-by-step explanation:

Data

Tank = 2640 L (pure water)

Sol=0.09kg Sugar per liter

Vin = Vout = 3L/min

Sugar in the beginning = ?

if beginning is t = 0min Amount of sugar = 0, this is due to the fact that at the moment of entering the tank the content is only water , but if beginning is t= 1min then;

\frac{3L}{min}*\frac{0.09Kg}{L}=0.27kg/min

7 0
3 years ago
Read 2 more answers
You make a table to use as a quick reference guide. y = -180 - 9(x) . Use the table tool to answer the question: what is the y-v
Nady [450]

Answer:

-45

Step-by-step explanation:

Look at the x-value column to row -15, and then look over to the y-value column for an answer of -45.

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

3 0
2 years ago
In which number does one digit 6 have the value of 1/100 of the other digit 6? The answers given are 66.04,56.60,46.06, and 40.6
diamong [38]
6,702 = 6 thousands and 7 hundreds and 0 tens and 2 ones
= 6 × 1000 + 7 × 100 + 0 × 10 + 2 × 1 
= 6000 + 700 + 2.

Above, we have written the number 6,702 in expanded form, or as a SUM of its different parts according to place value.The digit 6 in the number 6,702 actually has the value 6,000 and the digit 7 actually signifies the value 700. This is why our number system is also called a place value system, because the value of a digit (like 6 or 7 in our example) depends on its placement within the number. In other words, the digit 6 in 6702 does not mean six but six thousand, because the six is placed in the thousands' place. The place of a digit determines its value. I'll go for <span>66.04 that's the closest</span>
5 0
3 years ago
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