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katrin2010 [14]
2 years ago
5

Solve, using linear combination. 3x – y = 4 2x + y = 6

Mathematics
1 answer:
BlackZzzverrR [31]2 years ago
5 0
X=2
y=2
hope this helps
ps. tiger algebra is a really good website!
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ANSWER QUICK!!
mars1129 [50]

Answer:

16

Step-by-step explanation:

separate into 4 triangles. 2x1= 2

triangle area formula= 1/2 l x w

3x4=12 12+4 is 16

7 0
3 years ago
What is the perimeter of the rectangle? Write your answer in scientific notation
marissa [1.9K]
The formula is 2(l+w) 
6 0
3 years ago
2. Write the mixed number -5(4/9) as a fraction in three different ways. Thenwrite the mixed number as a decimal.
emmasim [6.3K]

<em>Fraction #1</em>

-5\frac{4}{9}

<em>Fraction #2</em>

-\frac{49}{9}

<em>Fraction #3</em>

-4\frac{13}{9}

<em>Fraction #4</em>

-3\frac{22}{9}

<em>Decimal:</em>

-5\frac{4}{9}\approx5.4444

Answer:

-5\frac{4}{9}

<em />

-\frac{49}{9}

<em />

-4\frac{13}{9}

<em>Decimal: 5.4444</em>

3 0
1 year ago
What fraction is equal to 0.7
olga nikolaevna [1]
The equal fraction is 7/10
5 0
2 years ago
Read 2 more answers
A cylindrical roller 2.5 m in length, 1.5 m in radius when rolled on a road was found to cover the area of 16500 m2 . How many r
eduard

Answer:

701 revolutions

Step-by-step explanation:

Given: Length= 2.5 m

            Radius= 1.5 m

            Area covered by roller= 16500 m²

Now, finding the Lateral surface area of cylinder to know area covered by roller in one revolution of cylindrical roller.

Remember; Lateral surface area of an object is the measurement of the area of all sides excluding area of base and its top.

Formula; Lateral surface area of cylinder= 2\pi rh

Considering, π= 3.14

⇒ lateral surface area of cylinder= 2\times 3.14\times 1.5\times 2.5

⇒ lateral surface area of cylinder= 23.55 \ m^{2}

∴ Area covered by cylindrical roller in one revolution is 23.55 m²

Next finding total number of revolution to cover 16500 m² area.

Total number of revolution= \frac{16500}{23.55} = 700.6369 \approx 701

Hence, Cyindrical roller make 701 revolution to cover 16500 m² area.

8 0
3 years ago
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