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anzhelika [568]
3 years ago
13

Plz help!!! It's on elimination its Algebra 1

Mathematics
1 answer:
koban [17]3 years ago
7 0
2x-y=0 Y=x-1 2x-x-1=0 x-1=0
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What is 24.9% in decimal form ?
Sati [7]

Answer: 0.249

Step-by-step explanation: To write a percent as a decimal, first remember that a percent is a ratio that compares a number to 100.

We can think of 24.9% as the ratio 24.9 to 100 or 24.9 ÷ 100.

Remember that dividing by 100 moves the decimal point two places to the left so 24.9 ÷ 100 will move the decimal point two places to the left which would give us .249 or 0.249.

Therefore, 24.9% can be written as the decimal 0.249.

7 0
3 years ago
Solve systems of equations<br><br> -x^2-4x+y=0<br> -x^2+9x+y+13=0
Ksju [112]

Answer:

I  solve  it by substitution

y=x^2+4x

-x^2+9x+(x^2+4x)+13=0

13x+13=0

13x=-13

x= -13/13

x= -1

y=x^2+4x=1-4

y= -3

Step-by-step explanation:

7 0
4 years ago
Please Please Please help me with this answer
nignag [31]

Alright, lets gets tarted.

Suppose there are x rows of tomato plants Krystyn make.

Again suppose there are n plants in each row.

We could find total plants by multiplying number of plants in each row with number of rows.

Hence total number of plants will be = x * n

But as per question, total number of plants are 54. It means

x * n = 54

Now, the number of plants in each row was 3 more than the number of rows means

n = x + 3

Putting this value of n in first equation we made

x * (x+3) = 54

x^{2} + 3x = 54

Subtracting 54 in both sides

x^{2} + 3x - 54 = 54 - 54

x^{2} + 3 x - 54 = 0

Factoring

(x-6)(x+9) = 0

Means x = 6 or x = -9

The number of rows can not be negaive.

Hence x = 6

It means number of rows of tomato plants will be 6. : Answer

Hope it will help :).

4 0
4 years ago
Read 2 more answers
How can you use an equilateral triangle to find the lengths of the sides in a 30-60-90 triangle?
irina [24]

Answer:

Step-by-step explanation:

1) divide equilateral tri from the middle you will get two 30-60-90 triangles

2) by using pythagorean law & trigimintory, you will get two unknowns (height and side length) and two functions

3 0
3 years ago
The distance from the school to the library is 12 miles. The distance from the school to the park is 75% of this distance. What
Firlakuza [10]

Answer: The distance from the school to the park = 9 miles.

Step-by-step explanation:

Given: The distance from the school to the library is 12 miles.

The distance from the school to the park is 75% of this distance.

The distance from the school to the park = 75% of (distance from the school to the library)

= 0.75  × (12 miles)

= 9 miles

Hence, the distance from the school to the park = 9 miles.

4 0
3 years ago
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