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Firdavs [7]
3 years ago
14

Rachel has 4 notebooks.Her mother gives her n notebooks.she wants to use the same number of notebooks in each of her 7 classes.

which expression shows the number of notebooks rachel will use for each class?
A.n+4/7
B.4÷7/n
C.4n+7
D.4+n+7​
Mathematics
1 answer:
HACTEHA [7]3 years ago
3 0

Answer:

i think its b

Step-by-step explanation:

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10. A volleyball team won 75% of 80 games played. How many games did they win?
Kruka [31]

Answer:

60

Step-by-step explanation:

x/80 * 75/100

100x= 6000

/100     /100

x=60

3 0
3 years ago
Read 2 more answers
State the domain of the function y=3/x
mixer [17]
Notice \ the \ equation \ contains \ x \ in \  the \ denominator. 

Since \ any \ denominator \ must \ not \ equal \ zero, 

our \ domain \ is \ restricted \ to \ x<span>≠0</span>
8 0
3 years ago
Divide 36X cubed -96X squared +48X by 12 X
saul85 [17]

Answer:

The answer to your question is        3x³   - 8x      + 4

Step-by-step explanation:

Divide  36³ - 96x² + 48x by 12x

                                                             3x³   - 8x      + 4

                                                 12x   36x³  -  96x²  +  48x                

                                                        - 36x³

                                                             0     - 96x²

                                                                    + 96x²

                                                                         0      +  48x

                                                                                  -  48x

                                                                                        0

1st step. Divide 36x³ by 12 x = 3x², place the result above 36x³

2nd step. Multiply 3x³ by 12x, change the sign and place the result below 36x³.

3rd step. Add and place -96x² next to the result

4rd step. Divide -96x² by 12x, and place the result next to 3x³. Result = -8x

5th step. Multiply 12x by -8x, change signs and place the result below -96x².

6th step. Add +96x² and -96x².

7th step. Divide 48x by 12x, and place the result next to the previous result.

8th step. Multiply 4 by 12x, change signs and place the result below 48x.

9th step. Add the results.

10th step. the result is    3x³   - 8x      + 4

6 0
3 years ago
a stone is dropped in a river from a bridge . if it takes 4 seconds to reach of the surface of water, calculate the depth of the
pav-90 [236]

The stone takes 4sec to reach the water level.

initial velocity (u)=0

time(t)=4s

acceleration due to gravity(a)=

9.8(10 approx)

so,its final velocity will be

v=u+at

0+10×4=40

v=40m/s

6 0
3 years ago
The function g is defined by g(x)=ax−7, where a is a constant. Find a, if the graph of g passes through the point ( 1/3 ,−2).
Daniel [21]

Answer:

a = 15

Step-by-step explanation:

The graph of function g(x) is described by g(x)=ax−7, or y = ax−7.

y = g(x)=ax−7 passes through (1/3, -2).  We can subst. -2 for y and 1/3 for x to determine the value of the coefficient a:

-2 = g(1/3) = a(1/3) - 7

Solve for a.  First, add 7 to both sides:  5 = a(1/3).

Next, multiply both sides by 3:  15 = a, or a = 15.

8 0
3 years ago
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