Mathematics Middle School

Mrs. Jones baked 70 cookies. Her son ate 1/2 of the cookies, then her husband ate 1/7 of the remaining cookies. How many cookies were left?

Answers

Answer 1

Answer:

30 cookies left

Step-by-step explanation:

1. Start: 48 cookies

2. Son ate ¼ of them, which is 12 (stomach ache!)

3. 36 cookies remain at this point.

4. Husband ate one-sixth of them; that's 6 cookies for him, 30 cookies left

Related Questions

Karl needs to build a stage that has an area of 84 square feet. The length of the stage should be longer than the width. What are the possible whole number measurements for the length and width of the stage?

Complete the table with possible measurements of the stage.

Answers

Answer:

84 = L x w

84 = 84 x 1

84 = 42 x 2

84 = 28 x 3

84 = 21 x 4

84 = 14 x 6

84 = 12 x 7

Step-by-step explanation:

A) Car A
B) Car B
C) Car C
D)Car D

Answers

the answer for this one is car d

The diagram is a model of festival grounds having three square stages and a triangular food court. The festival director wants to place a square booth in the included angle between the two smaller stages. Thus, he needs to know if the shape of the food court is a right triangle.
Determine the area of the food court.

Answers

Answer:

what kind of work is this

Step-by-step explanation:

40 points!! please do not plagiarize, I need this to be original :D
Erik is performing a marble experiment in math class. His teacher places an equal number of black, red, and white marbles in a bag. Then, Erik randomly takes out a marble, records the result, and puts the marble back in the bag. Each of the first four times Erik takes out a marble, he gets a black marble.

A. What is the theoretical probability of Erik picking a black marble next time? Based on Erik's results, what is the experimental probability of Erik picking a black marble next time?
B. Explain the difference between the two probabilities you found in part A.
C. What is the theoretical probability and likelihood of getting four black marbles in a row?

Answers

Answer:

Every one of us would have encountered multiple situations in life where we had to take a chance or risk. Depending on the situation, it can be predicted up to a certain extent if a particular event is going to take place or not. This chance of occurrence of a particular event is what we study in probability. In our everyday life, we are more accustomed to the word ‘chance’ as compared to the word ‘probability’. Since Mathematics is all about quantifying things, the theory of probability basically quantifies these chances of occurrence or non-occurrence of certain events. In this article, we are going to discuss what is probability and its two different types of approaches with examples.

I need help now plz
the question is in the picture gl

Answers

She did make a square corner, it all adds up to same number
Yes she made a square!!!!!!!!!

Question 13
Please help me

Answers

I’m pretty sure it is the third one
correct that is the answer to question 13

Help please!!
Xxxxxxx

Answers

Answer:

B

Step-by-step explanation:

b is the answer iggggg

Find the length of the segment indicated. Round your answer to the nearest tenth if necessary

Answers

okay so we know that a circle is 360°

the one angle is 135 degrees and to find the other one we can just subtract 360 - 135

the other angle is 225°



we can set it up as:

12 yd x
——— = ——-
225 135


to find x, cross multiply 135 and 12 which gives you 1,620
1,620 / 225 = 7.2

the other angle is 7.2 yards!

complete the equation. explain how you got your answer

4/5 X 3/7 =?

Answers

Answer:

the answer simplified is 0.34

Step-by-step explanation:

Answer:

[tex]\frac{12}{35}[/tex]

Step-by-step explanation:

Multiply straight across.

[tex]\frac{4}{5} *\frac{3}{7} \\4*3 =12 \\5*7=35\\12/35[/tex]

PLEASE HELP WILL MARK BRAINLIEST

Answers

Answer:

figure ll only

Step-by-step explanation:

The answer is b , I’m pretty sure , but sorry if u get it wrong <3

What is the area of the figure shown?

Answers

Step-by-step explanation:

[tex]3.5 \times 6 + (5 - 3.5) \times 6 \div 2 = \\ = 21 + 9 \div 2 = \\ = 25.5[/tex]

Answer:

25.5m

Step-by-step explanation:

square area: 6m*3.5m = 21m

Triangle height: 5m - 3.5m = 1.5m

Triangle area: [tex]\frac{1.5m*6m}{2}[/tex] = 4.5m

Total area: 21m + 4.5m = 25.5m

Whats is 7 = 12v - 24?

Answers

Answer:

To the nearest tenth: v = 2.6

To the nearest hundredth: v = 2.58

Fraction form = 31/12

Step-by-step explanation:

1. Add 24 to both sides to cancel it out on the right

7 = 12v - 24

+24          +24

2. Divide each side by 12

31 = 12v

31/12 = 2.5833333

12/12 = 1v = v

v = 2.583333

It’s V=31/12

(1). 7=12v-24 (12v is a variable so you move it left hand side and change its sign)

(2). 7-12v=-24 (7 is a constant so move it to the right hand side and change its sign)

(3). -12v=-24-7 (now calculate the difference -24-7)

(4). Now it’s -12v=-31, now after that divide both sides of the equation by -12

(5). So the answer is V=31/12

How do you determine which variable is independent
and which one is independent?

Answers

Answer: An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure. For example, someone's age might be an independent variable.

please help will mark brainliest! no links!

Answers

Answer:

b <3

Step-by-step explanation:

i need help 8th grade math

Answers

Answer:

the slope shows that the average rating increased 0.4 points per month

Step-by-step explanation:

the equation is written in slope-intercept form. aka y=mx+b. m represents the slope and b represents the y-intercept. therefore in the equation y=0.4x+3 the slope is 0.4

hope this made sense and helped you for future problems :)

The slope shows that the average rating increased 0.4 points per month

A regular pentagon with side length s has perimeter 5s. Dakota built a dog pen in her backyard for her dog's new puppies. The pen is shaped like a regular pentagon and has 40-inch sides.
What is the perimeter of the pen?
Write your answer as a whole number or decimal.

Answers

5(40) = 200
perimeter = 200

HIII PLEASE HELP ITS 6 GRADE MATHS LOLL

Answers

Answer:

-5, -7, -4, -6, -10

Step-by-step explanation:

Hope this helps!

HELP HELP HELP :( I NEED HELP IM GONNA FAIL THESE QUESTIONS ARE HARD PLZ HELP

Answers

The answer would be number one trust me I did this on a piece of paper
The awnser is D,
Because when you to think about it remember how quarters work in currency,
So 4 quarters make a dollar, 0.25 -> 0.50 -> 0.75 -> 1

The graph shows information about the lion population at a safari park. Lions were introduced in the park in 2010. In 2012, the park has a population of 32 lions. A year later, in 2013, the park has 128 lions. Write an exponential function that models this situation. Let X represent the number of years since 2010 and let f(x)represent the number of lions.

Answers

Answer:

never gonna

Step-by-step explanation:

give you up,

Let you down,

make you cry

Run around and desert you

3. Write the following as an algebraic expression: Twice the cube of z .4. Write the following as an algebraic expression: The quotient of the sum of x plus 4 and 2

Answers

Answer:

im pretty sure its Z^3 & x+4/2

Step-by-step explanation:

Yea.....can sum1 help pls

Answers

Answer:

208

Step-by-step explanation:

8*8=64

9*8/2=36

36*4=144

144+64=208

have a nice day :)

Your answers 208 just took the test

Two students determined the value of this equation as shown below.
2x – (3x + 5) + 2 = 5x – 14
[picture below]
Describe any errors made when solving the equation by Student A.
Describe any errors made when solving the equation by Student B.
Show a complete set of correct steps to determine the solution to the equation.

Answers

(you can do the first two parts with the help of the third part)

2x-(3x+5)+2=5-14

2x-3x-5+2=5-14 (distribute the negative sign)
-1x-3=-9 (simplify equation by adding/subtracting)
-1x-3=-9 (add 3 on both sides)
-1x=-6 (divide both sides by negative 1)
x=6

hope this helps! also you can download mathaway and photomath to help you with problems like these

Gabby just joined a new yoga studio. The studio charges a monthly fee plus an extra fee for each class students attend. The monthly cost for attending c classes is 20.50+2c dollars. Gabby plans to attend 9 classes this month.
What price will Gabby pay if she attends 9 classes this month?

Answers

Gaby will pay $38.50
“$38.50” is how much gabby will pay.

PLEASE HELP WILL MARK BRAINLIEST

Answers

Answer:

$4

Step-by-step explanation:

Pete and Teegan each put an amount of $P in a new bank account.

Teegan's account earns 2.75% simple interest, earned $2.20 in interest after one year.

Write p x 2.75/100 = 2.20 so p = 80$ and $80 in Pete's account earns 5% simple interest.

after one year Pete will earn as interest 80 x 5/100 = 4$

hey i can’t see the picture can you submit another one

Which expression can be simplified as
1
18?
?
-3
o (no)
0 (10)
0
(noje

Answers

The answer is (n^-3)^6
The fourth option
Step by step:
The answer is (n^-3)^6

plz answer! i need help soo bad

Answers

Answer:

c.64

Step-by-step explanation:

16x8=128

128/2=64

Answer:

64 feet

Step-by-step explanation:

8/2 = 4 inches

We can now multiply.

16 * 4 = 64

HELP BRAINLIST WILL BE REWARDED

Answers

Answer:

3 fish a 2 fish b

Step-by-step explanation:

please help
(a figure is made up of a square and two semicircles)

Answers

Answer:

73.132 is the perimeter

Step-by-step explanation:

The perimeter of the square is 32 because 8x4.

The perimeter of the semicircle is 20.566 and times by 2 as there are 2 is 41.132.

41.132 + 32 = 73.132

hiii umm yeah i need help on this its about direct variation equations

Answers

Each 5 minutes represent 1 mile. This can be also referred as independent and dependent variables. It takes 5 minutes for 1 mile. Or T=5m (m=minutes) D=1

so 5 x 2 (5 minutes x 2) = 10 minutes and 10 minutes equal to 2 miles, each 5 minutes is another mile. For example, 60 minutes (1 hour) 60 divided by 5 = 12 so in 1 hour (60 mins) equal to 12 miles in total! hope this helps at least a bit! :)

Part 1. plsss help me

Answers

Answer:

hey I looked at a few and I'm pretty sure that question 11) c (y=-½x) and 7) d (the rise is -2 and the run is 1)

The rise is -2 the run is 1
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