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2 years ago

How much is 4500 g at $8.80 a kg

Mathematics

1 answer:

GuDViN [60]2 years ago

8 0

The answer to this question is 39.6.

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Mary has a third of the money that Erin has. Erin has $8 less than John. Together they have $267. How much money does each of th

svet-max [94.6K]

Mary = (1/3)x

Erin = x - 8

John = x

Here is your equation:

(1/3)x + (x - 8) + x = 267

Take it from here.

5 0

2 years ago

Read 2 more answers

Write a statement that indacates that the triangles in each pair are congruent

Wittaler [7]

Answer:

The answer would be C

Step-by-step explanation:

Because if you look at the triangles you can where they match up and if you look at the lines you can tell if they match up and C matches that`s how I did it well that`s how I do it when I do math

3 0

2 years ago

Help please, thank you.

aivan3 [116]

Answer:

Step-by-step explanation:

It's not a function because the X's repeat

8 0

2 years ago

Solve the equation on the interval [0, 2pi): 12cos^2 x-9=0<br><br><br> What to do?

siniylev [52]

Answer:

$\large\boxed{x=\dfrac{\pi}{6}\ \vee\ x=\dfrac{5\pi}{6}\ \vee\ x=\dfrac{7\pi}{6}\ \vee\ x=\dfrac{11\pi}{6}}$

Step-by-step explanation:

$12\cos^2x-9=0\qquad\text{add 9 to both sides}\\\\12\cos^2x=9\qquad\text{divide both sides by 12}\\\\\cos^2x=\dfrac{9}{12}\\\\\cos^2x=\dfrac{9:3}{12:3}\\\\\cos^2x=\dfrac{3}{4}\to\cos x=\pm\sqrt{\dfrac{3}{4}}\\\\\cos x=\pm\dfrac{\sqrt3}{2}\\\\\text{Look at the picture}\\\\x=\dfrac{\pi}{6}\ \vee\ x=\dfrac{5\pi}{6}\ \vee\ x=\dfrac{7\pi}{6}\ \vee\ x=\dfrac{11\pi}{6}$

6 0

2 years ago

Which equation represents the line shown on the graph? y=-2x у y = 2x 1 y = -x + 2 x -3-2-1 1 2 3 -2 -3 y = x + 2

Karo-lina-s [1.5K]

Answer:

y = x + 2

Slope = rise / run

= 2 / 2 (or 1 bc 2 divided by 2 is 1)

The plotted point on the x axis is on 2

y = x + 2

6 0

3 years ago