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
Shtirlitz [24]
3 years ago
13

Which steps could be used to solve this story problem? A squirrel ate 35 peanuts every day for a week. The next week it ate 42 p

eanuts every day. How many more peanuts did the squirrel eat the second week than the first week? (There are 7 days in a week.) Choose exactly two answers that are correct. A. Add 35 and 42. Then multiply the sum by 7. B. Subtract 35 from 42. Multiply the difference by 7. C. Multiply 7× 35. Then multiply 7 × 42. Then subtract the first product from the second product. D. Divide 35 by 7 and 42 by 7. Then add the 2 quotients together.
Mathematics
1 answer:
devlian [24]3 years ago
6 0
It is c its easy hope i helped

You might be interested in
Ella has 10 more CDs than her friend Krystal has. Iris has 3 times as many CDs as Ella has. Which of the following can be used t
pav-90 [236]

Answer:

3(10+k)=total

Step-by-step explanation:

5 0
2 years ago
7 in.
fgiga [73]
258 cubic inches

Since the boxes are kind of on their own—>
First box: 7*2*12 = 168
Second box: 5*2*9=90
168+90 = 258
6 0
3 years ago
10 black balls and 5 white balls are placed in an urn. Two balls are then drawn in succession. What is the probability that the
Alex787 [66]

Answer:

The probability that the second ball drawn is a white ball if the second ball is drawn without replacing the first ball is \frac{1}{3} or 0.3333

Step-by-step explanation:

Probability is the greater or lesser possibility that a certain event will occur. In other words, the probability establishes a relationship between the number of favorable events and the total number of possible events. Then, the probability of any event A is defined as the ratio between the number of favorable cases (number of cases in which event A may or may not occur) and the total number of possible cases. This is called Laplace's Law:

P(A)\frac{number of favorable cases of A}{total number of possible cases}

Each of the results obtained when conducting an experiment is called an elementary event. The set of all elementary events obtained is called the sample space, so that every subset of the sample space is an event.

The total number of possible cases is 15 (10 black balls added to the 5 white balls).

As each extraction is without replacement, the events are dependent. For that, the dependent probabilities are defined first

Two events are dependent on each other when the fact that one of them is verified influences the probability of the other being verified.  In other words, the probability of A happening is affected because B has happened or not.

The probability of two events A and B of two successive simple experiments in a dependent compound experiment is:

A and B are dependent ⇔ P (A ∩ B) = P (A) · P (B / A)

                                              P (A ∩ B) = P (B) · P (B / A)

As the color of the first ball that is extracted is unknown, there are two cases: that the ball is black or that the ball is white.

<em> It will be assumed first that the first ball drawn is black</em>. Then the probability of this happening is \frac{10}{15} since the number of black balls in the urn is 10 and the total number of cases is 15. It is now known that the second ball extracted will be white. Then the number of favorable cases will be 5 (number of white balls inside the ballot urn), but now the number of total cases is 14, because a ball was previously removed that was not replaced.  So the probability of this happening is \frac{5}{14}

So the probability that the first ball is black and the second white is:

<em>\frac{10}{15} *\frac{5}{14} =\frac{5}{21}</em>

<em>It will now be assumed first that the first ball that is drawn is white.</em> Then the probability of this happening is \frac{5}{15} since the number of white balls in the urn is 5 and the total number of cases is 15. And it is known that the second ball drawn will be white. Then, the number of favorable cases will be 4 (number of white balls inside the urn, because when removing a white ball and not replacing it, its quantity will decrease), and the total number of cases is 14, same as in the previous case  So, the probability of this happening is  \frac{4}{14}

So the probability that the first ball is white and the second white is:

<em>\frac{5}{15} *\frac{4}{14} =\frac{2}{21}</em>

If A and B are two incompatible events, that is, they cannot occur at the same time, the probability of occurrence A or of occurrence B will be the sum of the probabilities of each event occurring separately.

These are events are incompatible, since I cannot, in a first extraction, extract a black and white ball at the same time. So:

<em>\frac{5}{21} +\frac{2}{21} =\frac{7}{21}=\frac{1}{3} =0.3333</em>

Finally, <u><em>the probability that the second ball drawn is a white ball if the second ball is drawn without replacing the first ball is \frac{1}{3} or 0.3333</em></u>

3 0
3 years ago
I don’t know the last one :( help
klasskru [66]
Letter m

Brainliest? Yo
5 0
3 years ago
Read 2 more answers
A U.S. dime has a thickness of 1 7/20 millimeters. Gary has a stack of dimes 78 3/10 millimeters tall. How many dimes does he ha
Dahasolnce [82]

Answer:

58 number of dimes.

A. $5.8

B. 131.602 grams.

Step-by-step explanation:

A U.S. dime has a thickness of 1\frac{7}{20} = 1.35 mm.

Now, Gary has a stack of dimes that is 78\frac{3}{10} = 78.3 mm in height.

Therefore, Gary has \frac{78.3}{1.35} = 58 dimes in total.

A. Now, each dime is equivalent to $0.1.

Therefore, the total value of the dimes that Gary has is $(0.1 × 58) = $5.8.

B. If each dime weighs 2.269 grams, then the mass of the entire stack of dimes will be (2.269 × 58) = 131.602 grams. (Answer)

8 0
3 years ago
Other questions:
  • Need help not sure if my question is true or false
    8·1 answer
  • Find the values of x and y
    12·1 answer
  • Monkeys at a zoo eat 4 cups of food everyday elephants eat 76 times as much! Which equation and solution represent the number of
    15·1 answer
  • Please help me out I have to show the work :c​
    11·2 answers
  • The units digit of a two-digit number is four more than the tens digit. If the number is doubled, it will be one more than the r
    13·2 answers
  • Louis wants to make a scale drawing of his bathroom. The room is 12 feet long by 8 feet wide. If he uses a scale of 1cm = 4ft, h
    7·1 answer
  • Find the area of shaded sector <br> A. 284<br> B.248<br> C.250<br> Pls I'll give brainlist
    14·1 answer
  • Find the volume of a right circular cone that has a height of 18m and a base with a radius of 5.8m
    9·1 answer
  • Jason is pulling a box across the room. He is pulling with a force of 19 newtons and his arm is making a 30 angle with the horiz
    9·2 answers
  • if 2 man and 3 boys can do a piece of work in 8 days then how long do 3 man and 4 boys take to do the same work
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!