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Tatiana [17]
2 years ago
13

Please help! 2x + 3y = 12, x + y = 5

Mathematics
2 answers:
denis23 [38]2 years ago
7 0

x=3 and y=2 because 6+6 = 12 and 2 times 3 is 6 :)

Arlecino [84]2 years ago
6 0
Photo has the answer

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Jack and Jim went biking. Jack biked for 5 1/3 hours with average speed 12 1/2 miles per hour. Jim traveled exactly 1 1/5 as far
ahrayia [7]
Given that Jack biked for 5 \frac{1}{3} hours with an average speed of  12 \frac{1}{2} miles per hour.

The distance travelled by Jack is given by

d=speed\times time \\  \\ =12 \frac{1}{2}\times5 \frac{1}{3}= \frac{25}{2} \times \frac{16}{3}  \\  \\ = \frac{200}{3} =66 \frac{2}{3} \ miles

Given that Jim travelled exactly 1 \frac{1}{5} as far as Jack did, then the distance Jim travelled is given by

d=1 \frac{1}{5} \times66 \frac{2}{3}  \\  \\ = \frac{6}{5} \times \frac{200}{3} =80

Therefore, the length of Jim's journey is 80 miles.
3 0
3 years ago
The robber stole 280 dollars' worth of one-dollar bills. He also stole some 100-dollar bills, 50-dollar bills, and 20-dollar bil
salantis [7]
E, because he is stealing everything, meaning he has a net profit. So, you would add everything. Since he 280 $1 bills, he just stole $280 which is a definite quantity, so we don't need a variable for it. Since everything else are indefinite quantities, we need variables (x, y, z). But, yeah, E should be the answer.
6 0
3 years ago
when a pair of shoes is sold at 12.5% discount, the selling price is 78.75. Find the original price of the pair of shoes and the
faltersainse [42]
The original price was 90$ so you saved 11.25$
3 0
3 years ago
Solve the equation without using the Distributive Property.
PIT_PIT [208]
Distribute:
3x-12=12
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6 0
3 years ago
Write 6.04x10^3 as an ordinary number
scoray [572]

Answer:

6040

Step-by-step explanation:

You can find out in two different ways, either use scientific notation or a calculator. If you go 3 steps to the right (since it's a positive power) you will get 6040. Hope this helped. :)

8 0
2 years ago
Read 2 more answers
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