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xxMikexx [17]
3 years ago
11

Mathematical

Mathematics
2 answers:
Ivenika [448]3 years ago
4 0

Answer:

7

Step-by-step explanation:

32 - 2 = 30

30 - 2 = 28

From those 28 left that Sarah has left, divide by 4 to get 7 in each group remaining.

VARVARA [1.3K]3 years ago
4 0

Answer:

I think 7 in each

Step-by-step explanation:

add 2 +2 Subtract 32 and 4 then divided by 4

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X+3=9
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3 years ago
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REALLY APPRECIATE YOUR HELP<br><br>Given log x = 3 and log y = 2, prove that x^2 -7xy =3000y​​
anyanavicka [17]

Answer:

if \:  log(x )  = 3 \\  log_{10}(x)  = 3 \\   {10}^{3}  = x \\ therfore \to \:  \boxed{x =  {10}^{3} } \\ \\  if \:  log(y )  = 2 \\  log_{10}(y)  = 2 \\   {10}^{2}  = y \\ therfore \to \:  \boxed{y=  {10}^{2} }

Step-by-step explanation:

x^2 -7xy =3000y \: then \to \\ x^2 =3000y + 7xy \\ {(10 ^{3} )}^{2}  = 3000(10)^{2}    + 7( {10}^{3} \times  {10}^{2})  \\   {10}^{6}   = 3000(10)^{2}    + 7( {10}^{3} \times  {10}^{2})  \\   {10}^{6}   = 3000(10)^{2}    + 7( {10}^{5} )   \\  {10}^{6}  = 300000 + 700000 \\   \boxed{{10}^{6}  = 1000000} \\ hence \: the \: equation \to \: x^2 -7xy =3000y \\ \boxed{ is \: corret}

♨Rage♨

3 0
3 years ago
5. Audrey Lorenz assembles gift baskets for a florist. The owner pays her $0.55 per small basket and
PilotLPTM [1.2K]

Answer:

219.6

Step-by-step explanation:

small basket:

0.55×288

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big basket:

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add up:

219.6

7 0
3 years ago
An object is thrown upward from the top of an 80ft tower.
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C because if you solve for the solutions for the quadratic, then you get 5 and -1 but you cant have negative seconds so 5 is the right answer!
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3 years ago
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Let the total distance of the trip be d. And let x be the required speed on the second half of the trip.
Time for first half of trip = d/(2 x 36) hours.
Time for second half of trip = d/2x.
The total time for the trip is then:
\frac{d}{72}+\frac{d}{2x}=\frac{d(x+36)[tex]\frac{d}{45}=\frac{d(x+36)}{72x}}{72x}[/tex]
However the total time for the trip must also be d/45.
Therefore we can write and solve the following equation:
\frac{d}{45}=\frac{d(x+36)}{72x}
Dividing both sides by d, and then cross-multiplying gives:
72x=45x+(36\times45)
27x = 1620
x = 60
The answer is 60 mi/h.

3 0
4 years ago
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