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3 years ago

Y=x+8 x+y=2 substituion

Mathematics

1 answer:

myrzilka [38]3 years ago

5 0

Answer:

X = -3

y = 5

Step-by-step explanation:

Substitute x + 8 for y

x + x + 8 = 2

2x + 8 = 2

2x = -6

x = -3

y = x + 8

y = -3 + 8

y = 5

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Joshua invested $750 in an account paying an interest rate of

Maslowich

Due to the difference in the interest rate and the quarterly compounding, Joshua will have $212.24 more than Josiah.
Step-by-step explanation:
Giving the following information:
Joshua:
Initial investment (PV)= $750
Interest rate (i)= 0.0341/4= 0.008525
Number of periods (n)= 18*4= 72 quarters
Josiah:
Initial investment (PV)= $750
Interest rate (i)= 0.0285
Number of periods (n)= 18 years
To calculate the future value of each one, we need to use the following formula:
FV= PV*(1 + i)^n
Joshua:
FV= 750*(1.008525^72)
FV= $1,381.98
Josiah:
FV= 750*(1.0285^18)
FV= $1,169.74
Due to the difference in the interest rate and the quarterly compounding, Joshua will have $212.24 more than Josiah.

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2 years ago

the sum of two consecutive integers is less than 83. find the pair of integers with the greatest sum.

pychu [463]

$x-first\ number\\x+1-second\ number\\\\x+x+1=83\\2x=82\\x=41\\x+1=42\\\\42+41=83,\ so\ first\ number\ could\ be\ 40\ and\ second\ 41,\ because\\sum\ must\ be\ less\ than\ 83.
$

7 0

3 years ago

Tell me step by step how to change a mixed fraction to an improper fraction using an example.PLS HELP I NEED it I give you 15 po

Serjik [45]

Step-by-step explanation:

say you have 1 1/4 what you would do is you would multiply 4*1 which is 4+ the top number of the fraction which is 4+1= 5 so now your fraction in is 5/4 .

8 0

3 years ago

10 POINTS!!!! no work needed so just answer this 2 question hurry.

iogann1982 [59]

Answer:

Q19 - x = 7

Q20 - x = 24

Step-by-step explanation:

Q19.

75 + x + 8 = 90°

83 + x = 90°

x = 90 - 83

x = 7

{CHECK: 75 + 7 + 8 = 90°}

Q20.

3x - 6 + x = 90°

4x - 6 = 90°

4x = 96

x = 96 / 4

x = 24

{CHECK: 3(24) - 6 + 24 = 90°}

hope this helps...

have a great day ahead ;)

5 0

3 years ago

So what if the area is 7200 sq m and side is 80 m . Pls help

Basile [38]

Hello,

If it is a rectangular field, then to find the other dimension (x), divide the area (A) by the other dimension (y).

x = a / y

x = 7 200 m² / 80 m = 90 cm

Bye :)

5 0

4 years ago