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Ilya [14]
3 years ago
15

What is the answer to this word problem or how would I solve it

Mathematics
1 answer:
USPshnik [31]3 years ago
5 0
Its a simultaneous equation:
lets make "x" the used games and "y" the new ones

4x + 2y = 84
6x + y = 78. (multiply this by 2 to cancel out y)
12x + 2y = 156

so now we subtract them:
12x - 4x = 156 - 84
x = 9
used games cost $9
new games cost 78 - 6(9) = $24

Janet has $120 but she already bought 3 NEW games so:
120 - 3(24) = $48 left

48/9 = how many used ones she can buy = 5. something

she can buy 5 used
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Step-by-step explanation:

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8 0
3 years ago
Select the correct vectors.
Paha777 [63]

In the case above, the correct vectors are:

  • <25.98, -15>.
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<h3>What is the ship vector about?</h3>

The solution for the Ship's vector are:

Note that the Horizontal aspect = 30 cos 30  

                                                   = 25.98.

For the  Vertical aspect = 30 sin(-30)

                                        = -15.

Hence it will be  <25.98, -15>.

In regards to the current's vector:

The Horizontal aspect=  5 sin 20

                                       = 1.71.

The Vertical aspect = 5 cos 20

                                     = 4.7.

Hence it will be <1.71, 4.7>.

Therefore, In the case above, the correct vectors are:

  • <25.98, -15>.
  • <1.71, 4.7>.

Learn more about vectors from

brainly.com/question/23973576

#SPJ1

4 0
1 year ago
Two chords intersect in the interior of a circle. One chord is divided into two segments measuring 8 units and 9 units. The othe
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Answer:

Step-by-step explanation:

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2. If two chords intersect inside a circle, then the measure of the angle formed is one half the sum of the measure of the arcs intercepted by the angle and its vertical angle . In the figure, m∠1=12(m⌢QR+m⌢PS) .

3. The intersecting chords theorem or just the chord theorem is a statement in elementary geometry that describes a relation of the four line segments created by two intersecting chords within a circle. It states that the products of the lengths of the line segments on each chord are equal.

8 0
3 years ago
Please help me understand how to do this and the answer!
Murrr4er [49]
Turn F(x) into vertex form:

y=x^2+8x+6
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