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Mars2501 [29]
2 years ago
9

Help! Help! Help! Help!

Mathematics
1 answer:
just olya [345]2 years ago
7 0

Answer:

  about $2269

Step-by-step explanation:

If we assume the aspect ratio of the two screens is the same, then the area is proportional to the square of the diagonal dimension.

__

The diagonal dimension of the larger HDTV is 65/32 ≈ 2.0313 times that of the smaller one. So, the price is expected to be ...

  $550 × 2.0313² ≈ $2269.29

You expect the 65" HDTV to cost about $2269.

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500 people took part in a marathon. 35% of them were children and the rest
sineoko [7]

Answer:

325

Step-by-step explanation:

500×.35=175

500-175=325

3 0
3 years ago
I need help :) please if you know this I would appreciate it if you can help me
elena-14-01-66 [18.8K]

Step-by-step explanation:

a.

2(3x) - 5x = 4

6x - 5x = 4

x = 4

B. -5(x-4)+8x=29

-5x+20+8x=29

3x+20=29

3x=9

x=3

C. 2y=18+2(3-y)

2y=18+6-2y

2y=24-2y

4y=24

y=6

D. c = -b - 11

3c + 6 = 6b

3( -b - 11) +6 = 6b

-3b-33+6=6b

-3b-27=6b

-27=9b

3=b

3 0
2 years ago
6x + 7 - 4x + 8 – x
grandymaker [24]

Answer:

x + 15 or 1x + 15

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
1. 1. Wanda took out a personal loan for $16,000 at 9% simple interest. a.
Arisa [49]
16000x9%x5 is $7200 #1 is $7200
16000x9%x3 is $2400 soo 7200-2400 is 4800 sooo
#1 is $7200
#2 is he or she will save $4800
8 0
3 years ago
Find the values of the variables and the measures of the angles
Alekssandra [29.7K]

The angles of the triangle are 39°, 51°, and 90°.

Step-by-step explanation:

Step 1:

The sum of all the angles in any triangle is equal to 180°.

We have two of the three angles in terms of x while the third angle is not given directly. Since it is a right-angled triangle, one of the angles equals 90°.

So the angles of the triangle are 3x, 4x-1, and 90.

Step 2:

Now, we substitute all the angles to a sum of 180 to determine the value of x.

3x + 4x - 1 + 90 = 180.

7x = 91, x = \frac{91}{7} = 13.

So x = 13°. The angles are

3x = 3 (13) = 39, 4x-1 = 4(13) - 1 = 51.

The angles of the triangle are 39°, 51°, and 90°.

7 0
3 years ago
Read 2 more answers
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