3 years ago

Solve the system using subtitution 3x + 2y = 23 1/2x - 4 = y

Mathematics

1 answer:

olasank [31]3 years ago

8 0

Answer:

y=6

Step-by-step explanation:

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A desk is on sale for 629$ which is 85% of the regular price. what is the regular price?

garik1379 [7]

Answer:

$740.00

Step-by-step explanation:

85% of x is 629

Translate into algebra. Use a decimal in place of the percent:

.85x = 629

Divide by .85

x = 740

This answer makes sense because the regular price should be a little higher than the sale price. If they are paying 85% they're only getting 15% off.

Check:

740×.85 = 629

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Nour drove from the Dead Sea up to Amman, and her altitude increased at a constant rate. When she began driving, her altitude wa

skelet666 [1.2K]

Answer:

Just divide 400 from 2 then 1000

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3 years ago

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A bag contains 4 white, 3 blue, and 6 red marbles. A marble is drawn from the bag, replaced, and another marble is drawn. Find t

PilotLPTM [1.2K]

First find the probability of each color being drawn.

We need to find the total number of marbles first.

4 + 3 + 6 = 13

So everything will be over 13.

Probability of a white marble being drawn --> $\frac{4}{13}$

Probability of a blue marble being drawn --> $\frac{3}{13}$

Probability of a red marble being drawn --> $\frac{6}{13}$

Now to find the probabilities of more than one being drawn, we can multiply.

Part a :

$\frac{6}{13}*\frac{6}{13}=\frac{36}{169}$

Part b :

$\frac{3}{13}*\frac{3}{13}=\frac{9}{169}$

Part c :

$\frac{6}{13}*\frac{3}{13}=\frac{18}{169}$

Part d :

$\frac{7}{13}*\frac{7}{13}=\frac{49}{169}$

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3 years ago

Luis rides his bicycle 34 mile in 5 minutes along the bike trail.

Harlamova29_29 [7]

Answer: 6.8 Miles per hour. Hope i helped you out man!

Step-by-step explanation:

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I need help doing this ?

aleksley [76]

It should be approximately 21.6 years.

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