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3 years ago

You bought a magazine for $5 and four erasers. You spent a total of $25. How much did each eraser cost?

Mathematics

1 answer:

Novay_Z [31]3 years ago

7 0

Well all you would have to do is subtract 25 to 5 which is 5 so $20 is how much

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What is 1/7 to 1/14 as a unit rate

Readme [11.4K]

1/7in=1/14min
14/7in=min
2in=min
the rate is 2 inches per minute.

3 0

3 years ago

Read 2 more answers

Kayla is a basketball CHAMP!!! She sits at her desk and throws garbage into the trash can! Last week, she took 30 shots and made

klasskru [66]

Answer:

Step-by-step explanation:

30 = 100

24 = 80

6 x 5 = 30

6 x 4 = 24

5 = 20 because 5 x 8 = 80.

6 0

3 years ago

You are given the parametric equations x=2cos(θ),y=sin(2θ). (a) List all of the points (x,y) where the tangent line is horizonta

vladimir1956 [14]

Answer:

The solutions listed from the smallest to the greatest are:

x: $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$ $\sqrt{2}$

y: -1 1 -1 1

Step-by-step explanation:

The slope of the tangent line at a point of the curve is:

$m = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

$m = -\frac{\cos 2\theta}{\sin \theta}$

The tangent line is horizontal when $m = 0$ . Then:

$\cos 2\theta = 0$

$2\theta = \cos^{-1}0$

$\theta = \frac{1}{2}\cdot \cos^{-1} 0$

$\theta = \frac{1}{2}\cdot \left(\frac{\pi}{2}+i\cdot \pi \right)$ , for all $i \in \mathbb{N}_{O}$

$\theta = \frac{\pi}{4} + i\cdot \frac{\pi}{2}$ , for all $i \in \mathbb{N}_{O}$

The first four solutions are:

x: $\sqrt{2}$ $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$

y: 1 -1 1 -1

The solutions listed from the smallest to the greatest are:

x: $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$ $\sqrt{2}$

y: -1 1 -1 1

6 0

3 years ago

Which representations of a transformation on a coordinate grid do NOT

Dmitry_Shevchenko [17]

I think answer should be e. Please give me brainlest let me know if it’s correct or not okay thanks bye I appreciate it

8 0

2 years ago

Janice examines the given triangle and estimates that

den301095 [7]

Answer:

Janice examines the given triangle and estimates that the longest side has a length of 25 units―if it is a right triangle. How does her estimate compare to the actual length? It is under by approximately 0.6 units.

Step-by-step explanation:

4 0

3 years ago