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
AnnZ [28]
3 years ago
12

- 7th Grade Work - Please help ; - ;

Mathematics
1 answer:
lawyer [7]3 years ago
4 0

Answer:

$12x + $33.75

Step-by-step explanation:

Okay so if you have (16x + 58.75) - (4x + 25)

first you add the common variables so... 16x - 4x = 12x

and 58.75 - 25 = 33.75

And 1 the most common mistake is that people add 25 and 58.75. The reason you don't do this is because the two equations are subtracting or trying to find the difference regardless of whether the numbers are positive or not. Although if they were negative numbers you would be adding.

I hope this helps :)

You might be interested in
Which statement is true about this function h(x) = 2^x-5
Marysya12 [62]

Answer:

\frac{1}{32} x

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
Jenny is saving money to buy a game. So far she has saved $12, which is one-fourth of the total cost of the game. How much does
7nadin3 [17]

Answer:

1/4th of total cost = $12

so

for total cost = $12 X 4

= $ 48

the game cost is $48

7 0
3 years ago
Read 2 more answers
The taste test for PTC (phenylthiourea) is a common class demonstration in the study of genetics. It is known that 70% of the Am
AysviL [449]

Answer:

The variance for the number of tasters is 4.2

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they are tasters, or they are not. The probability of a person being a taster is independent of any other person. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The variance of the binomial distribution is:

V(X) = np(1-p)

It is known that 70% of the American people are "tasters" with the rest are "non-tasters". Suppose a genetics class of size 20

This means that p = 0.7, n = 20

So

V(X) = np(1-p) = 20*0.7*0.3 = 4.2

The variance for the number of tasters is 4.2

7 0
4 years ago
95°<br> 6rº + 47°<br> r_ degrees
e-lub [12.9K]

Answer:

r = 8°

Step-by-step explanation:

95° = 6r° + 47° ( vertically opposite angles are equal)

6r° = 95° - 47°

6r = 48°

r = 48°/6

r = 8°

5 0
3 years ago
Read 2 more answers
Three times the sum of a number and 18 and is at least -30
miss Akunina [59]

Answer:

im sry i need hte points

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Explain the effect that "h" has on the function f(x) = a(x - h)2 + k.
    6·1 answer
  • Find the intersection of the following sets.
    7·1 answer
  • Write the equation line with a slope of -5 and a y intercept of 2.
    6·2 answers
  • How many words is 2-3 pages double spaced?
    14·1 answer
  • The fraction 6/100 can be written as which decimal
    10·1 answer
  • Which expression is equivalent to n + n - 0.18n?
    8·2 answers
  • Find the value of x.
    11·1 answer
  • Identify the triangle ​
    11·2 answers
  • The signals of a radio station can be received up to 80 miles away. Your house is 50 miles east and 20 miles south of the statio
    14·1 answer
  • I make 69832,420$ a month. How much do I make a day? How much do I make an hour?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!