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
Strike441 [17]
3 years ago
5

I need help with number 30

Mathematics
1 answer:
yanalaym [24]3 years ago
5 0

Answer:

220

Step-by-step explanation:

You might be interested in
A box contains four equal sized cards labeled 1,3,5,7 Tim will select one card from the box What is the probability that Tim wil
Mice21 [21]

Answer:

0 is the probability that Tim will select a card labeled with a number 6.

Step-by-step explanation:

We are given the following in the question:

Number of cards = 4

Cards with labels:

1,3,5,7

Tim will select one card from the box. We have to find the probability that Tim will select a card labeled with a number 6.

Formula:

\text{Probability} = \displaystyle\frac{\text{Number of favourable outcomes}}{\text{Total number of outcomes}}

\text{P(Label 6) = }\dfrac{0}{4}= 0

0 is the probability that Tim will select a card labeled with a number 6. Thus, it is an impossible event.

4 0
3 years ago
Need some help with this question!
Veronika [31]
1. solve for x in first to just find nterms of y

x=12-y
sub that for x in other one
first divide that one by 2 to make it easier
2x-y=18
2(12-y)-y=18
24-2y-y=18
24-3y=18
minus 24 both sides
-3y=-6
divide -3
y=2

D is answer




2.
find intersection of x+y=5 and -2x+3y=6
or easiers, just test the intersections
wait, they all intersect in the same place
this is super easy
pick ANY point that is in that reigon and see if it is true

A, if we pick lets say (5,5)
that is false for x+y<5
not A

B
pick (10,0)
false for first one
not B

C
pick (0,0)
true for first
false for 2nd
not C


D. pick (-10,0)
true for first
true for 2nd


answer is D


answer is D for both questions
6 0
3 years ago
Would It be unusual if a random sample of 400 adults results in 156 or more having no credit cards
vesna_86 [32]

Answer:

Yes, in places like the US, UK and other bigger areas

No, in like Africa and poorer areas

5 0
3 years ago
Pls help! 50 POINTS!
nirvana33 [79]

Answer:

See below.

Step-by-step explanation:

1)

So we have the equation:

2x+3y=1470

To change into the slope-intercept form, we need to isolate the y-variable. Thus, subtract 2x from both sides:

(2x+3y)-2x=(1470)-2x

The left side cancels:

3y=1470-2x

Now, divide both sides by 3. The left side cancels:

(3y)/3=(-2x+1470)/3\\y=-\frac{2}{3} x+490

The slope-intercept form is:

y=mx+b

Where m is the slope and b is the y-intercept.

Thus, the slope is -2/3 and the y-intercept is 490.

2)

So, since we already know the y-intercept is 490, plot a point at (0,490).

The slope is too small to use. Thus, multiply the fraction by 100. It is now (-200/300). This means that we move <em>down</em> 200 for every 300 (recall that the slope means rise over run. Thus, we move down 200 for every 300 to the right). Thus, another possible point would be (0+300,490-200) or (300,290). Plot that. Then, connect them.

3)

To write in in function notation, simply substitute the y-variable for the function notation. Our independent variable here is x so we'll use that.

y=-\frac{2}{3}x+490\\ f(x)=-\frac{2}{3}x+490

This means that for every x sandwiches made, there is f(x) wraps made for the total sum to be $1,470.

For example, if 105 sandwiches were made, then f(105)=-2/3(105)+490=420 wraps were made for the total profit to be $1,470.

4)

Please refer to the attached graph.

5)

First, since the total profit has now increased, the graph above and to the right of the old graph. This is because Sal needs to sell more sandwiches and wraps. Likewise, because of this, the x- and y-intercepts will also be different. Nevertheless, if converted into the slope-intercept equation, the slope will remain the same.

5 0
3 years ago
Read 2 more answers
sam gets 15 vacation days each year. By june 1st, sam had used 6 of his vacation days. what fraction on the year's total did he
Mashcka [7]

Answer:

Step-by-step explanation: put your fraction 6 over 15

8 0
3 years ago
Other questions:
  • Write a polynomial function of least degree with integral coefficients that has the given zeros
    6·1 answer
  • In the circle shown below, ∠BAC is a central angle, and r is the length of AB.
    5·1 answer
  • Emily got a new job that guarantees her at 6% raise every year.If she started out making $25,000,How long will it be before she
    7·1 answer
  • Find the lengths of the sides of the triangle PQR. P(2, −3, −4), Q(8, 0, 2), R(11, −6, −4) |PQ| = Incorrect: Your answer is inco
    6·1 answer
  • (need help!) A dart is thrown at the board shown. It hits the board at a random point. Find the probability that it will land in
    9·2 answers
  • (2, 14), (6, 34), (8,44), (x, 64). What is the value of x?
    11·1 answer
  • Can somebody help me with the problem in the picture :( pleasee
    7·2 answers
  • What is the least common multiple of 12 and 22<br><br><br> Please help me
    12·1 answer
  • The perimeter of a rectangle is 56 cm. The length of the rectangle is 2 cm more than the width. Find the dimensions of the recta
    15·1 answer
  • If a sum invested gains 10% each year how long will it be before it has doubled its<br> value?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!