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vfiekz [6]
2 years ago
7

Then solve the equation.

Mathematics
1 answer:
Ksju [112]2 years ago
7 0

Answer:

8

Step-by-step explanation:

Ok so 3 copies = 40 cents.

75 - 40 = 35.

We only have 35 cents left.

The highest number that can go in 35 with 7 is 5.

Oir original 3 copies + our 5 copies is 8

I did this in my head so sorry if I'm totally wrong.

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While studying abroad in France, you offer to bake your grandmother's famous cookies for other students in your program. You hav
IRINA_888 [86]

Answer:

22.8 kl

Step-by-step explanation:

4 0
2 years ago
we need any help on this home I can you turn it in by Monday so can you help me please. i need on 9 and 10
marta [7]
9) yes, he is correct.   

50% as a decimal would be 0.50
7% as a decimal would be 0.07

10)Buy and Bye has a greater discount because 30% as a decimal is 0.30 and 1/4 as a decimal is 0.25.

0.30 is bigger than 0.25 so it is a bigger discount
7 0
2 years ago
Prove that sinxtanx=1/cosx - cosx
maks197457 [2]

Answer:

See below

Step-by-step explanation:

We want to prove that

\sin(x)\tan(x) = \dfrac{1}{\cos(x)} - \cos(x), \forall x \in\mathbb{R}

Taking the RHS, note

\dfrac{1}{\cos(x)} - \cos(x) = \dfrac{1}{\cos(x)} - \dfrac{\cos(x) \cos(x)}{\cos(x)} = \dfrac{1-\cos^2(x)}{\cos(x)}

Remember that

\sin^2(x) + \cos^2(x) =1 \implies 1- \cos^2(x) =\sin^2(x)

Therefore,

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

Once

\dfrac{\sin(x)}{\cos(x)} = \tan(x)

Then,

\dfrac{\sin(x)\sin(x)}{\cos(x)} = \sin(x)\tan(x)

Hence, it is proved

5 0
2 years ago
Is it possible to trisect any angle using only a compass and a straight edge
xeze [42]

Hello from MrBillDoesMath!

Answer:

No. That problem cited is one of 3 great unsolved problems of antiquity. See  https://en.wikipedia.org/wiki/Angle_trisection for details.


Regards,  

MrB

P.S.  I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!


4 0
3 years ago
Read 2 more answers
2 tables. Table 1 is titled Population data with entries 2, 4, 8, 5, 1, 1, 10, 5, 4, 2, 3, 3. Table 2 is titled Sample data with
alekssr [168]

Answer:  //The mean of the population is 4

//The mean of the population is 3.25

//The difference between the mean of the sample and the mean of the population is  0.75

Step-by-step explanation: EGDEUNITY

7 0
3 years ago
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