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2 years ago

Algebra ,, will mark brainliest!!

Mathematics

1 answer:

Viktor [21]2 years ago

7 0

Answer:

Step-by-step explanation:

(1 1/2,-2)

solve for x and get 1 1/2

solve for y and get -2

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3. The sum of two numbers 49. The difference of the two numbers is 15. What is the product of the two numbers?

Alborosie

Lets set the two numbers as 'a' and 'b'

Now let us set up some equations based on the information:

sum of two numbers 49 --> a + b = 49
difference of the two numbers is 15 --> a -b =15

Equations

a + b = 49 -- equation 1

a - b = 15 -- equation 2

Solve:

(equation 1) + (equation 2)

2a = 64

a = 32 -- equation 3

(equation 3)'s value of a into (equation 2)

32 - b = 15

b = 17

The products of 'a' and 'b' is 544

Hope that helps!

3 0

2 years ago

3. Two numbers are in the ratio 3:5. If their difference is 12, what are the numbers?

vladimir2022 [97]

I got 18 and 30 for my answer

8 0

3 years ago

WILL MARK AS BRAINLIEST

Alex Ar [27]

I’m guessing it’s the first one

4 0

3 years ago

Suppose that you have an enormous grapefruit that is 92% water (by weight). The grapefruit weights 100 pounds. If the water cont

yuradex [85]

Answer:

The weight of grapefruit is now 80 pound.

Step-by-step explanation:

Consider the provided information.

Let the x is the weight loss. The weight of grapefruit is 100 pounds and water is 92%. After evaporation water is 90%.

Thus the weight loss is:

$0.92\times100-0.90(100 - x) = x$

$92-90+0.90x=x$

$2=x-0.90x$

$2=0.1x$

$x=20$

Hence, the weight loss is 80 pounds.

Therefore, New weight is 100 - 20 = 80 pounds

The weight of grapefruit is now 80 pound.

3 0

3 years ago

A triangle has vertices A(1, 1), B(2, 4), and C(4, 2). Line p is parallel to side AB and contains point C.

kenny6666 [7]

Answer:

$p:y = 3x-10$

Step-by-step explanation:

We are given the following in the question:

A(1, 1), B(2, 4), C(4, 2)

i) Slope of AB

$A(1, 1), B(2, 4)\\\\m = \dfrac{y_2-y_1}{x_2-x_1}\\\\m = \dfrac{4-1}{2-1}=3$

Thus, slope of AB is 3.

ii) Point slope form

The point slope form of a line can be written as:

$y - y_1 = m(x - x_1)$

The point intercept form of line can be written as:

$y = mx + c$

The line is parallel to AB and contains point C(4, 2). Since line p is parallel to AB, line p will have the same slope as line AB

Putting values, we get,

$y - 2 = 3(x-4)\\y = 3x-12+2\\y = 3x-10$

which is the required slope intercept equation of line p.

4 0

3 years ago