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1 year ago

Shona bought 5 bags of cement and 4 bags of gravel. The total weight of her bags was 200 kilograms.

1 answer:

8 0

5k+4k=200k

Hope this helps

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marishachu [46]

(6x + 30)+(2x+6)= 180
8x +36= 180
8x= 144
X= 18
So 2x+6 = 42
And 6x+30 = 138

8 0

3 years ago

olga2289 [7]

Answer:

90000000000000000000milen

8 0

3 years ago

Ad libitum [116K]

$\cos t (\sec t - \cos t) = \sin^2 t$

$\cos t (\dfrac{1}{\cos t} - \cos t) = \sin^2 t$

$\dfrac{\cos t}{\cos t} - \cos^2 t = \sin^2 t$

$1 - \cos^2 t = \sin^2 t$

Use the identity: $\sin^2 t + \cos^2 t = 1$ and solve for $\sin^2 t$ . You get: $\sin^2 t = 1 - \cos^2 t$

Do the substitution on the left side to get:

$\sin^2 t = \sin ^2 t$

5 0

2 years ago

Vikentia [17]

Step-by-step explanation:

0.3(9x + 2) [Then we multiply to expand]

= 2.7x + 0.6 (Ans)

4 0

2 years ago

9966 [12]

Your answer is 3/5, the picture below shows how sin cos tan work!

5 0

2 years ago