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Umnica [9.8K]
3 years ago
9

At a college, the cost of tuition increased by 10%. Let t, represent the former cost of the tuition. What is the new cost of tui

tion?
Mathematics
1 answer:
viva [34]3 years ago
7 0
The answer if I have come up with is t = t/10
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Can someone help me find what x equals , step by step ASAP!!
Evgesh-ka [11]

Answer:

x=8

Step-by-step explanation:

6x+42=90

6x=48

x=8

6 0
2 years ago
Thirteen people on a softball team show up for a game. a)How many ways are there to choose 10 players to take the field? b)How m
marishachu [46]

Answer:

a) 286

b) 1,037,836,800

c) 285

Step-by-step explanation:

a) Since order is not important, the total possible number of ways to choose 10 players out of 13 is the following combination:

C(13,10)=\frac{13!}{(13-10)!10! } \\C(13,10)=\frac{13*12*11*10!}{(3*2*1)10! }\\C(13,10) = 286

b) The total number of possibilities to assign positions by the selecting 10 players is the permutation of 13 players for 10 positions:

P(13,10) = \frac{13!}{(13-10)!}\\P(13,10) = 13*12*11*10*9*8*7*6*5*4\\P(13,10) =1,037,836,800

c) The number of ways to pick 10 players including at least one woman is equal to the total number of ways to pick 10 players (found in item a) minus the the number of ways to pick 10 players without picking a single woman.

Since there 10 male players for 10 positions, there is only one possible way to pick a team without women, therefore:

P=286-1 =285

6 0
3 years ago
Two lines are perpendicular when... the product of their slope is -1, the product of the slope is greater than 0, they have the
Soloha48 [4]

The answer is the product of their slope is -1.

First, let's break this down. Perpendicular lines are line with opposite reciprocal slopes. Opposite meaning the inverse sign and reciprocal meaning flipped.

For instance,

If a line had the slope of 5, its inverse would have a slope of -1/5.

Now, if we multiply these numbers together,

5 * -1/5 = -1

The 5's cancel out.

This works for any two perpendicular lines

4 0
3 years ago
The midpoint of A (-4, 2) and B(8, 5) is
Norma-Jean [14]
\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
&({{ -4}}\quad ,&{{ 2}})\quad 
%  (c,d)
&({{ 8}}\quad ,&{{ 5}})
\end{array}\qquad
%   coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)
\\\\\\
\left(\cfrac{{{ 8}} -4}{2}\quad ,\quad \cfrac{{{ 5}} + {{ 2}}}{2} \right)
8 0
3 years ago
Read 2 more answers
What is the answer ti<br> Y-7-x<br> 2x-y=8
TEA [102]
<span>2x+y=8
2x+x-7=8
3x=15

x=5 

y=5-7
y=-2</span>
3 0
3 years ago
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