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3 years ago

Ann bought 3 pairs of jeans for 195$. Find the unit rate

Mathematics

1 answer:

wel3 years ago

6 0

Answer:

1:65

$65/per pair

Step-by-step explanation:

$195 ÷ 3 = $65/per pair

ratio is 1:65

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Using Cramer's Rule, what are the values of x and y in the solutio

olya-2409 [2.1K]

Answer:

x = -3, y = 1

Step-by-step explanation:

To find the value of x and y, find the determinant of original matrix, which would be 21.

Then, substitute the value of x with the solutions to the equations and find the determinant of that matrix, which is -63.

Cramer's rule says that Dx ÷ D is the value of x. So, -63 ÷ 21 = -3.

So, the x-value is -3.

You can find the determinant of the y-value in the same way, and you'll find out that y = 1.

Hope this helped! :)

8 0

3 years ago

Find the product of 275 and 938

kykrilka [37]

Product means "multiply"

Multiply the two numbers

275 x 938 = 257950

257,950 is your answer

hope this helps

7 0

2 years ago

Read 2 more answers

Find four consecutive natural numbers if you know that the product of the first two is 38 less than the product of the following

Fynjy0 [20]

<span>Because the four numbers are consecutive, we can call the first one x, and the other three are x+1, x+2, and x+3, respectively. x * (x+1) = (x+2) * (x+3) - 38 x^2 + x = x^2 + 5x +6-38 x^2 + x = x^2 + 5x - 32 -4x = -32 x=8 The four numbers are 8, 9, 10, and 11 check solution: 8*9=10*11-38 72=110-38 72=72</span>

8 0

2 years ago

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Which of the following is an equivalent to the expression shown? Hint: factor! 7x−56−28x Group of answer choices 7(x-4-4x) -7(x-

Anestetic [448]

Answer:i think its the second one

Step-by-step explanation:

took the test

3 0

3 years ago

A 15-foot ladder leans against a house. The bottom of the ladder is 7 feet from the house. To the nearest degree, what angle doe

max2010maxim [7]

The ladder is forming a right triangle with the house. In this right triangle the hypotenuse is the measure of the ladder, and the distance between the house and he ladder is one of the sides of the triangle. To find the angle, $\alpha$ , that the ladder is making with the ground, we are going to use a trig function that relates the adjacent side of our angle with the hypotenuse. That trig function is Cosine.
$Cos \alpha = \frac{adjacent.side}{hypotenuse}$
$Cos \alpha = \frac{7}{15}$
$\alpha =arcCos( \frac{7}{15} )$
$\alpha =62.2$

We can conclude that the ladder make with the ground a 62° angle.

7 0

2 years ago