1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Slav-nsk [51]
2 years ago
13

What is the value of y?

Mathematics
1 answer:
Lelu [443]2 years ago
3 0

Answer:

y=66

Step-by-step explanation:

(y-31)+(180-(y+35))+y=180

y-31+145-y+y=180

y=180-114

y=66

You might be interested in
The demand for a daily newspaper at a newsstand at a busy intersection is known to be normally distributed with a mean of 150 an
AURORKA [14]

Answer:

171 newspapers.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 150, \sigma = 25

How many newspapers should the newsstand operator order to ensure that he runs short on no more than 20% of days

The number of newspapers must be on the 100-20 = 80th percentile. So this value if X when Z has a pvalue of 0.8. So X when Z = 0.84.

Z = \frac{X - \mu}{\sigma}

0.84 = \frac{X - 150}{25}

X - 150 = 0.84*25

X = 171

So 171 newspapers.

4 0
3 years ago
10.The school needs to purchase a new refrigerator for student rewards. Lowes and Sears have the model
vovangra [49]
Lowe’s would be a better. They would be $10 cheaper even after the delivery fee.
8 0
3 years ago
If the interior angle sum of a regular polygon is 5, 940 degrees, how many sides does it have?
Snezhnost [94]

An apple, potato, and onion all taste the same if you eat them with your nose plugged

8 0
2 years ago
a map has a scale of 2in: 6mi. if a two twons on a map is 10 in apart then how far apart are the real twons
Brilliant_brown [7]

Answer:  30 miles

Work Shown:

2 in : 6 mi

5*2 in : 5*6 mi

10 in : 30 mi

7 0
2 years ago
4(x - 2) = 2x + 3(x - 5)
yaroslaw [1]

Answer:

x=7

Step-by-step explanation:

  1. 4(x-2) = 2x+3(x-5)
  2. 4x-8 = 2x+3x-15
  3. 4x-8 = 5x -15
  4. -x = -7
  5. x = 7

8 0
3 years ago
Other questions:
  • How are trigonometric functions graphed to show the period, midline, and amplitude?
    6·1 answer
  • PLEASE I NEED HELP ASAP! Determine if 9x2 - 42x + 49 can be the area of a square. If so, what would the value of x have to be if
    10·1 answer
  • What is the area of a parallelogram if the coordinates of its vertices are (0, -2), (3,2), (8,2), and (5, -2)?
    9·1 answer
  • A pair of badminton rackets was originally marked at $30 and has been sold $24. What was the percent of discount
    15·1 answer
  • Round the number 411 to the tens place
    14·1 answer
  • How many litres of water can hold in a tank whose capicity is 6000m³
    7·1 answer
  • There are 12 tennis racquets and 8 hockey sticks in a gym class. What percent of the gym equipment in the class are hockey stick
    5·1 answer
  • Kara has $38 for the mall with her 5 friends, but she wanted to buy a purse for $18, also she wanted to get bracelets for her fr
    11·1 answer
  • Pls help me. It due ASAP...
    11·1 answer
  • Do a plane in the point always sometimes or never intersect? Explain.​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!