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babymother [125]
3 years ago
8

Movie tickets are $4 for regular admission and $3 for seniors. On a night where there were 190 people and total sales of $720 ho

w many regular admission tickets were sold?
A. 50
B. 150
C. 40
D. 140
Mathematics
2 answers:
labwork [276]3 years ago
8 0
Answer is B: 150

write two equations

r+s=190
4r+3s=720

solve by substitution

the get r=150 s=40
Nonamiya [84]3 years ago
6 0

Answer:

150

Step-by-step explanation:

So if we rearrange the second equation we can get:

s = 190 - a

Now we substitute this into the first equation:

4a + 3(190 - a) = 720

4a + (570 - 3a) = 720

4a + 570 - 3a = 720

4a - 3a = 720 - 570

a = 150

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50674136.0 round to the nearest hundreds​
Vladimir79 [104]

Answer:

50674100.0

Step-by-step explanation:

3<5 so 136~100

7 0
2 years ago
Translate this phrase into an algebraic expression. 63 decreased by twice Carlos's height Use the variable c to represent Carlos
nikitadnepr [17]

Answer:

63-2c

Step-by-step explanation:

You write 63 and substitute decreased with a subtraction sign. Twice means to multiple by 2. so for twice of Carlo's height you would write 2c.

I hope this helps!!!!!

8 0
2 years ago
Solve for x.<br><br> A) 46<br><br> B) 38<br><br> C) 45<br><br> D) 40
yarga [219]

Answer:

C) 45

Step-by-step explanation:

By Basic Proportionality Theorem:

\frac{x}{18}  =  \frac{20}{8}  \\  \\x =   \frac{18 \times 20}{8}   \\  \\ x =  \frac{360}{8}  \\  \\ x = 45

8 0
2 years ago
6. The number of points that Kilee scored in five basketball games was 10, 10 points
fenix001 [56]

Answer:

Because of the presence of an outlier (30), an extremely higher value when compared to others. Outliers affects the value of mean, thereby mean should not be used for data with outliers.

Step-by-step explanation:

For the set of data above, it would be misleading to use the mean as the center of measure for the number of points that she scored in each game because of the presence of outliers, the presence of extremely lower or extremely higher value makes the use of mean as a measure of central tendency inaccurate because the mean take into consideration all the values in a data including the outliers for its calculation, and the mean would tend to shift towards the outliers thereby misinterpreting the data. The presence of outlier which is 30 in the data given would shift the mean to the right towards 30, thereby misleading to represent the measure of central tendency. 30 is an outlier because it is extremely higher than the rest of the data (10,8,9,8,30).

In the presence of outliers it's best to use median or mode as an acceptable measure of central tendency.

5 0
2 years ago
Please help me I’ll mark you as brainliest &lt;333
BartSMP [9]

Answer:

z=11

Step-by-step explanation:

180-74=106

106-7=99

99/9=11

z=11

3 0
3 years ago
Read 2 more answers
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