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Komok [63]
3 years ago
6

6 ( − 2.1 x − 2 ) + ( 7 x + 5 )

Mathematics
1 answer:
Mariana [72]3 years ago
8 0

Answer: −5.6x −7

Step-by-step explanation:

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Rich is attending a 4-year college. As a freshman, he was approved for a 10-year, federal unsubsidized student loan in the amoun
Marianna [84]

Answer:

During the non-payment period of 4.5 years, Rich will accrue interest of $1,525.095.

Step-by-step explanation:

As he knows that he has option of beginning repayment of the loan in 4.5 years at the so at rate of 4.29% of $7,900 interest will be:

After first year: 4.29% of 7900

 =\frac{4.29}{100}*7900\\ =338.91

So, after the tenure of 4.5 years, to find total interest, the interest will be multiplied by 4.5:

=338.91*4.5

=1525.095

6 0
3 years ago
the ratio of the heights of two similar triangles is 6:5 if the perimeter of the larger triangle is 49.2 feet. find the perimite
Mademuasel [1]

Answer:

41 feet

Step-by-step explanation:

We apply the theorem below:

If two similar triangles have a scale factor of a : b, then the ratio of their perimeters is a : b.

Let x be the perimeter of the smaller triangle

If the ratio of their heights is 6:5 and the perimeter of the larger triangle is 49.2 feet,

6:5=49.2:x

6/5=49.2/x

Cross multiplying

6x=49.2 X 5

6x=246

x=246/6=41

The perimeter of the smaller triangle is 41 feet

5 0
3 years ago
In the following problem, what is the part? What number is 40% of 90?
FinnZ [79.3K]

Answer:

36

Step-by-step explanation:

40% of 90 is 36

Hope this helps

5 0
3 years ago
10x3 + 13x² + 13x + 9) = (x2 + x + 1)
Zielflug [23.3K]

Answer:

barbielatttt

Step-by-step explanation:

barbieelat

5 0
3 years ago
I need help on the table. Image inserted! Please help me
wel

Answer: (6) $172.50    (7) $74.80   (8) $106.65   (9) $141.20

              (10) $119.00    (11) 12.5% markup     (12) 15% markdown

<u>Step-by-step explanation:</u>

Use the following formula <em>(+ for markup and - for markdown/discount)</em>

Base Price ± (Base Price × markup/markdown) = Adjusted Price

6. <em>Markup so add (+)</em>

150 + (150 × 0.15) = x

150 +      22.5       = x

             172.50    = x

7. <em>Markdown so subtract (-)</em>

85 - (85 × 0.12) = x

85 -      10.2      = x

             74.80  = x

8. <em>Discount so subtract (-)</em>

135 - (135 × 0.21) = x

135 -       28.35    = x

              106.65  = x

9. <em>Markup so add (+)</em>

x + (x × 0.25) = 176.50

x  +    0.25x   = 176.50

        1.25x     = 176.50

               x     = 141.20

10. <em>Markdown so subtract (-)</em>

x - (x × 0.15) = 101.15

x -    0.15x    = 101.15

         0.85x = 101.15

                 x = 119.00

11. <em>The adjusted price is more than the base price so add (+)</em>

278 + (278 × x) = 312.75

278 +      278x  = 312.75

              278x  = 34.75

                    x  = 0.125

                    x  =  12.5% markup

12. <em>The adjusted price is less than the base price so subtract (-)</em>

157 - (157 × x) = 133.45

157 -    157x    = 133.45

         -157x     = -23.55

                x     = 0.15

                x     = 15% markdown

4 0
3 years ago
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