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3 years ago

13

Help , please ?? If you can thank you ..4 more

1 answer:

Ket [755]3 years ago

8 0

$14+3c^2-15+c\\\\=14+3(4^2)-15+4\\\\=3(16)-1+4\\\\=48+3\\\\=51$

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If a bus travel 200 miles in 5 hours how fast did it travel

galina1969 [7]

Answer:

40 miles per hour.

Step-by-step explanation:

Divide the total amount of miles by the number of miles, in this case, 200 by 5 to find out how fast it traveled in 1 hour.

200/5=40

3 0

3 years ago

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A mail distribution center processes as many as 175,000 pieces of mail each day. The mail is sent via ground and air. Each land

liubo4ka [24]

The total number of mails that is processed by the mail distribution center cannot go beyond 175,000 (because this is the maximum number of mails). Therefore, the first equation that can be generated from the given scenario is,
1250x + 1500y ≤ 175000
Also, since the maximum number of loads per day can only be 200, the second equation would be,
x + y ≤ 200
Therefore, the answer to this item is letter A.

3 0

3 years ago

kirza4 [7]

Answer:

a) x = -6

Step-by-step explanation:

5x - 14 = 8x + 4

-14 = 3x + 4

-18 = 3x

x = -6

8 0

3 years ago

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Find the volume of a cone that has a radius of 5 yards and a

stepan [7]

Answer:

Volume of the cone = $182.91\,yards^3$

Step-by-step explanation:

Radius of the cone = $5\,yards$

Height of the cone = $7\,yards$

Volume of a cone is:

$\pi \times r^2 \times\dfrac{h}{3}\\$

$=3.14\times (5\times 5)\times \dfrac{7}{3} \\\\=3.14\times 25 \times 2.33\\\\=3.14\times 58.25\\\\=182.905\,yards^3$

The Volume of the cone is : $182.91\,yards^3$

8 0

3 years ago

A sum of money is placed at simple interest for 3 years at 10% annum and then the amount is invested for 3 years at the same rat

fgiga [73]

Answer:

Initial principal -$300,000

Investment amount after yr 3-$390,000

Final investment amount, after 6 yrs-$519,090

Step-by-step explanation:

Let X be the amount initially invested.

#The amount after 3 yrs of simple interest is calculated as:

$I=PRT\\\\A=P+I\\\\A=X+X\times 0.1\times 3\\\\A=1.3X$

#The amount after 5 yrs is calculated by compounding the amount after 3 yrs for 2 yrs at 10%:

$A=P(1+i)^2\\\\471900=1.3X(1.1)^2\\\\471900=1.573X\\\\X=300000$

Hence, the amount initially invested as $300,000

#Amount of invested after 6 yrs is therefore:

$A=P(1+i)^n\\\\=471900\times1.1\\\\=519090$

Hence, the total amount of the investment after 6 yrs is $519,090

#Substitute X in simple interest equation to find amount after 3 yrs of simple interest:

$I=PRT\\\\A=P+I\\\\A=X+X\times 0.1\times 3\\\\A=1.3X\\\\=1.3\times 300000\\\\=390000$

Hence, the total amount of the investment after first 3 yrs is $390,000

3 0

4 years ago