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patriot [66]
3 years ago
7

If you were to use the substitution method to solve the following system, choose the

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
7 0

Answer:

15x - y = - 6.....15x + 6 = y...so we sub in 15x + 6 in for y on the other equation

5x - 3y = -13

5x - 3(15x + 6) = -13 <== the new equation

Step-by-step explanation:

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at scotts printing company LLC there are two kinds of printing presses: Model A which can print 50 books per day and Model B whi
kolbaska11 [484]

Answer: Model A: 6, Model B: 3

Step-by-step explanation:

Model A can pring 50 books per day so since you have 6 of those, the Model A printing presses would pring 300 per day (50 x 6). If you have 6 of the Model A printing presses, that means you have 3 Model B printing presses because there is a total of 9 printing presses. Therefore, you would multiply 3 by 30 which is 90 because the Model B ones can pring 30 per day.

390 (books total) = (50 x 6) + (30 x 3)

390 = 300 + 90

7 0
3 years ago
Read 2 more answers
Which theory of migration states that people sailed down the west coast of North America to make settlements?
lara31 [8.8K]
The appropriate answer is b. the Northern Asia Coastal theory. This theory states that people entered North America by moving along the coast from north west Asia along the northern Pacific coastline using rafts or early designs of boats. It was previously thought that people entered north America by crossing the Bering Strait but new evidence contradicts this theory. 
7 0
3 years ago
Solve the following equation:<br><br> 7/3=y−2/3
garri49 [273]

Answer:

y = 3

Step-by-step explanation:

Add \frac{2}{3} to both sides of the equation

\frac{7}{3}+\frac{2}{3}=y-\frac{2}{3}+\frac{2}{3}

y =3

Hence, y =3

[RevyBreeze]

3 0
2 years ago
Read 2 more answers
Is the relationship between the variables in this table a direct variation, an inverse variation, or neither. If it is a direct
disa [49]

Answer:

Inverse Variation

Step-by-step explanation:

5 0
3 years ago
Can someone answer B please???
lbvjy [14]
A)

150 were surveyed, possible outcomes, and 132 said they prefer dogs, favorable outcomes,   132/150 or 22/25 or 0.88, now 0.88 * 100 is just 88, namely 88% is the probability.

b)

since we know is 88%, what is 88% of 100?  (88/100) * 100, 0.88 * 100, or just 88 students.

c)

18/150 or 3/25 or 0.12 namely 12%,

what's 12% of 300?  (12/100) * 300, or 0.12 * 300, so just 36 students.
8 0
3 years ago
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