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3 years ago

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1)If the coefficient of anyone of the variables is zero, what will be the nature if the equation? 2)What is a solution of a syst

em of equations?

1 answer:

Shtirlitz [24]3 years ago

4 0

Answer:

1) If the coefficent of any variable is zero then the answer of the variable is 0.

2) There are two answers in a system of equations.

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Use the compound interest formula to compute the total amount accumulated and the interest earned.

jasenka [17]

Answer:

100

Step-by-step explanation:

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3 years ago

The map of a biking trail is drawn on a coordinate grid. The trail starts at P(−2, 2) and goes to Q(5, 2). It goes from Q to R(5

love history [14]

Answer:

The total length (in units) of the biking trail is 17 units.

Step-by-step explanation:

o find distance between points A(x¹, y¹) and B(x², y²), we use formula:

$d = \sqrt{(x^{2}-x^{1})^{2}+(y^{2}-y^{1})^{2}}$

The trail starts at P(−2, 2) and goes to Q(5, 2).

So, the distance PQ will be calculated as:

$PQ = \sqrt{(5^{}-(-2)^{})^{2}+(2^{}-2^{})^{2}$

$PQ = \sqrt{(49^{}+0)$

PQ = 7 units

Then the trail goes from Q(5, 2) to R(5, −5).

So, the distance QR will be calculated as:

$QR = \sqrt{(x^{2}-x^{1})^{2}+(y^{2}-y^{1})^{2}}$

$QR = \sqrt{(5^{}-5^{})^{2}+(-5^{}-2^{})^{2}$

QR = 7 units

And then from R(5, −5) to S(8, −5).

$RS = \sqrt{(8^{}-5^{})^{2}+(-5^{}-(-5)^{})^{2}}$

QR = 3 units

Hence, the total length of the biking trail is:

PQ + QR + QR = 7 + 7 + 3 = 17 units

Keywords: distance formula, length

Learn more about distance formula to find length from brainly.com/question/10903929

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3 years ago

Read 2 more answers

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3 years ago

Taryn mowed 9 lawns in 7.5 hers and received $112.50. Alastair mowed 7 lawns in 5 hrs, and received122.50. How much did Taryn ch

Akimi4 [234]

So to find the number of dollars per lawn, we divide the number of lawns by the number of monies each got so

taryn mowed 9 and got 112.5 so 112.5/9= how much per lawn=12.5 per lawn
taryn charges <u>12.5 per</u> lawn

alistair mowed 7 lawns and got 122.5 so 122.5/7= how much per lawn=17.5 per lawn
alistair charges <u>17.5</u> per lawn

so taryn mowed 9 lawns in 7.5 hours and got 112.5 or 112.5 per 7.5 hours
to find how much per hour you divide 112.5 by 7.5 and get 15 dollars per hour
t=15 per hour
so we want to find out how many more hours t has to work to earn 735 more we just divide 735 by the rate (15) and find the number of hours so 735/15=49
t has to work <u>49</u> more hours to earn 735 more

Alistar=5 hours and 122.5 so 122.5/5=how much per hour=24.5
a=24.5 per hour
so we divide 735 by the rate (24.5) and get the number of hours
735/24.5=30
a has to work <u>30</u> more hours to earn 735 more

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3 years ago