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3 years ago

What is the solution to this system of linear equations?

Mathematics

1 answer:

timurjin [86]3 years ago

7 0

B is the answer to your question

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You start at (7, 2). You move up 5 units. Where do you end?

tankabanditka [31]

Answer:

(7,7)

Step-by-step explanation:

Because going up would be moving along the y-axis, then you would add 5 to the Y value which was 2 so therefore, if you move up 5 you'll be at (7,7).:)

5 0

3 years ago

Read 2 more answers

Plz help me solve it the question is below

AlladinOne [14]

Answer:

$\frac{1024}{2025}$

Step-by-step explanation:

$\frac{3}{4}^{-4} = \frac{1}{\frac{3}{4}^{4} }$

(3/4)^4 = 81/256

1 ÷ 81/256 = 256/81

So;

$\frac{256}{81} * \frac{4}{9} = \frac{1024}{729}$

$\frac{1024}{729} / n = \frac{1}{9/25}$

$\frac{1024}{729n} = \frac{25}{9} \\\\n = \frac{1024 *9 }{25 * 729} = \frac{1024}{2025}$

6 0

3 years ago

Beth drives 200 miles in 4 hours.

Dmitrij [34]

Answer:

26mph

Step-by-step explanation:

18 miles at 36mph will take 30 minutes and 26 × 7 is 3 h 30 min

3 0

2 years ago

How to solve all the questions in the pictures please

IgorLugansk [536]

Answer:

See attachments

Step-by-step explanation:

7 0

3 years ago

Two mechanics worked on a car. The first mechanic charged $55 per hour, and the second mechanic charged $60 per hour. The mechan

Nady [450]

Answer:

15 and 5 hours.

Step-by-step explanation:

Call x the time taken by the first chap, and y the second.

$\left \{ {{x+y = 20 \atop {55x+60y=1125}} \right.$

Let's divide by 5 and play with the LHS of the first equation a bit:

$11x+ 11y +y = 225\\11(x+y)+y= 225$ we know how much x+y is ( first equation!) let's solve.

$11(20) +y = 225 \rightarrow y=5$ At this point it's easy to check that $x=15$

8 0

2 years ago