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Neporo4naja [7]
3 years ago
7

Solve for z -4z+1=bz+c Z=?

Mathematics
1 answer:
Alona [7]3 years ago
3 0
Remember, you can do anything to an equation as long as you do it to both sides

so
get all the  z on one side

add 4z to both sides

1=bz+4z+c
minus c bot sides
1-c=bz+4z
undistriibute z
1-c=z(b+4)
divide both sides by b+4
\frac{1-c}{b+4}=z
z=\frac{1-c}{b+4}
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Aaron and Maria collected shells one morning at the beach. Maria had 3 times as many as Aaron, but they would have had the same
Hoochie [10]
Let the amount of shells collected by Aaron be x and the amount of shells collected by Maria be y respectively. Then the following system of equations should be solved:
\left \{ {{3x=y} \atop {x+8=y-6}} \right.

First of all, express y out of first equation:
y=3x

Then, replace y in second equation with found expression and solve it:
x+8=3x-6
2x=14
x=14/2=7

Finally, replace x in first equation with found value and solve it too:
3*7=y
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So, Aaron has found 7 shells while Maria has found 21.


7 0
3 years ago
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Sophie [7]

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6 0
2 years ago
hich function has a range of {y|y ≤ 5}? f(x) = (x – 4)2 + 5 f(x) = –(x – 4)2 + 5 f(x) = (x – 5)2 + 4 f(x) = –(x – 5)2 + 4
Brums [2.3K]

Answer:

f(x)=-(x-4)^2+5

Step-by-step explanation:

The function f(x)=-(x-4)^2+5 has  the vertex at (4,5).


Since a=-1\:, the graph of the function is a maximum graph.


The highest y-value is the y-coordinate of the vertex which is 5.


Therefore the range is {y|y\le 5}


Therefore the correct answer is B.


6 0
3 years ago
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aleksandrvk [35]
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3 years ago
Rovan can make 48 tarts per hour. complete the table below:
GarryVolchara [31]

Answer:

A.) in 6 hours Rovan can make 288 tarts

B. at this rate it'll take Rovan about 2 and a half hours to make 120 tarts

Step-by-step explanation:

so if Rovan can make 48 tarts an 1 hour take 48 and multiply it by the hours to find out how many tarts he can make

48 x 1 =48

48 x 2 =96

48 x 3 =144 .....

48 x 6 =288

A.) in 6 hours Rovan can make 288 tarts

B. at this rate it'll take Rovan about 2 and a half hours to make 120 tarts

3 0
2 years ago
Read 2 more answers
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