6th grade math , help me please

Answer:

d

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given that sandwiches are made with either turkey or ham.

Prob for turkey or ham = 1/2

The fruit can be either apple or orange. Hence p(apple) = p(orange) =12

Drinks can be either bottled water or juice

P(water) = P(juice) = 1/2

We find that sandwiches, fruits, and drinks are mutually independent of each other.

Hence the probability you will get an orange and not get juice in your box

Prob (you get an orange and bottled water)

= Prob (orange) *Prob (bottled water) (since the two are independent

= 1/2 (1/2)= 1/4

Hence answer is 0.25

Answer:

C. and D.

Step-by-step explanation:

In the word problem, the two facts to solve the problem are:

A. The wait to ride the roller coaster was 40 minutes and

B. The line of people was 100 meters long

Because the length of waiters has an effect on the time. Thus, if the line is reduced to 50 meters, then the waiting time would reduce i.e 20 minutes.

Therefore, the facts that are not required to solve the word problem are:

C. The roller coaster is the fastest ride at the fair.

D. It was Tuesday.

Answer:

5 games

Step-by-step explanation:

To find how many games the team scored at least 70 points, we need to look at the 7 on the stem side. The 7 means 70, and we add the digits on the leaf side. For example, 7 | 2 is 72. The numbers on the leaf side are: 1, 1, 2, and 3.

There are no points for the 8 on the stem side, but on 90, there is one digit on the leaf side: 1. So, the points they scored over 70 are 71, 71, 72, 73, and 91, which equals to five games.

Answer:

[tex]\boxed{\mathrm{5 \ games}}[/tex]

Step-by-step explanation:

At least 70 points makes it 70 and more. It should be at least 70 and at most anything above then 70.

So, In 5 games, the team scored at least 70. (71,71,72,73 and 91)

Answer:

(11π/9 )ft/s

Step by step Explanation

Let us denote the height as h ft

But we were told that The diameter of the base of the cone is approximately three times the altitude, then

Let us denote the diameter = 3h ft, and the radius is 3h/2

The volume of the cone is

V = (1/3)π r^2 h

Then if we substitute the values we have

= (1/3)π (9h^2/4)(h) = (3/4)π h^3

dV/dt = (9/4)π h^2 dh/dt

We were given as 22feet and rate of 8 cubic feet per minute

h = 22

dV/dt = 8

8= (9/4)π (22) dh/dt

= 11π/9ft/s

Therefore, the rate is the height of the pile changing when the pile is 22 feet is

11π/9ft/s

Answer:

3/4

Step-by-step explanation:

3/4 is already in it's simplest form as you already know that consecutive numbers don't have anything in common to multiply.So, it is in it's simplest form.

Hope it helps u : )

The equivalent and the percentage form of 3/4 are 12/16 and 75% respectively.

The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two objects.

Given, the ratio of 3/4

Percentage of 3:4 = 34×100%=75%

the equivalent ratio of 3:4 is 12:16.

A ratio is a fraction that may compare part to whole or part to part. For example, suppose in a class, the ratio of boys to girls is 3 to 4. It means that the number of boys divided by the number of girls is a fraction that, in its simplest form, equals 3 over 4.

Learn more about ratios here:

https://brainly.com/question/13419413

#SPJ3

Answer:

Step-by-step explanation:

(3,-2)

plug in 3 for x and -2 for y

-2< -1/2x3+2

-2<-1.5+2

-2<0.5

Answer:

D) Fail to reject the null hypothesis. There is insufficient evidence to conclude that the mean is greater than $100.

Step-by-step explanation:

We are given that the owner of a shoe store randomly selected 10 receipts and identified the total spent by each customer. The totals (rounded to the nearest dollar) are given below;

X: 125, 99, 219, 65, 109, 89, 79, 119, 95, 135.

Let [tex]\mu[/tex] = average customer bought worth of shoes.

So, Null Hypothesis, [tex]H_0[/tex] : [tex]\mu \leq[/tex] $100      {means that the mean is smaller than or equal to $100}

Alternate Hypothesis, [tex]H_A[/tex] : [tex]\mu[/tex] > $100      {means that the mean is greater than $100}

The test statistics that will be used here is One-sample t-test statistics because we don't know about population standard deviation;

                            T.S.  =  [tex]\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }[/tex]  ~ [tex]t_n_-_1[/tex]

where, [tex]\bar X[/tex] = sample mean = [tex]\frac{\sum X}{n}[/tex] = $113.4

             s = sample standard deviation = [tex]\sqrt{\frac{\sum (X-\bar X)^{2} }{n-1} }[/tex] = $42.78

             n = sample of receipts = 10

So, the test statistics =  [tex]\frac{113.4-100}{\frac{42.78}{\sqrt{10} } }[/tex]  ~  [tex]t_9[/tex]

                                    =  0.991

The value of t-test statistics is 0.991.

Now, at a 0.05 level of significance, the t table gives a critical value of 1.833 at 9 degrees of freedom for the right-tailed test.

Since the value of our test statistics is less than the critical value of t as 0.991 < 1.833, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region.

Therefore, we conclude that the mean is smaller than or equal to $100.

Answer:

x < 5

Step-by-step explanation:

The total amount is 595$ and the amount Helena want to leave for equipement is 420$

The amount helena can use is 175$

each ticket costs 35$

so Helena can oly buy 5 tickets or less

x < 5     with x the number of tickets

Answer:

5 feet

Step-by-step explanation:

To find x, we can write:

x + 4 + x = 14

2x + 4 = 14

2x = 10

x = 5 feet

Answer:

5 units

Step-by-step explanation:

we can identify this as an isosceles triangle because both angles are equal (= 45 deg). Hence we can also conclude that the vertical leg of the triangle must also be "s"

We an also identify this as a right triangle because we have one angle that is 90 degrees. Hence we can use the Pythagorean formula to solve this (see attached for reference)

(5√2 )² = S² + S²

(5)²(√2 )² = 2S²

(25)(2) = 2S²

25 = S²

S = √25

S = 5 units

The length of leg s in the right triangle is 5 units. Therefore, the correct answer is option D.

In the given isosceles right triangle, hypotenuse is 5√2.

We know that, sinθ=Opposite/Hypotenuse

sin45°=s/5√2

1/√2 = s/5√2

1 = s/5

s = 5

Therefore, the correct answer is option D.

Learn more about the trigonometric ratios here:

brainly.com/question/25122825.

#SPJ2

Answer:

Step-by-step explanation:

I do not understand your question very well but I think that the state of the glass of the water would be liquid and solid at the same time since the water would not freeze 100% and would be with small pieces of solid and some parts liquid, in terms of temperature, I think that at 5 minutes it would be 5 ° C and at 10 it would be 3-4 ° C the longer it is in the freezer the less its temperature will be

(All of that is my point of view)

Average temperature 30 °

So :

30 ÷ 15 = 2 °

30 ÷ 10 = 3 °

30 ÷ 5 = 6 °

Answer:

[tex]2(x^2+63)[/tex]

Step 1:

To solve this, we have to add the terms without any variables together.

[tex]2x^2+28+98\\2x^2+126[/tex]

Step 2:

To factor this, we have to find the multiples of 2x^2 and 126.

[tex]2x^2 = 2x, x\\126 = 63, 2[/tex]

Now, we can factor these numbers like this:

[tex]2(x^2+63)[/tex]

When we multiply the numbers, we get 2x^2 + 126, and when we separate 126, we get our original question, so that means our factoring is correct.

Answer:

If no matter what choice of x my adversary makes, I can choose a y that makes the statement true, then the statement is true. Otherwise, it's false.

Step-by-step explanation:

According to the given situation, as we can see that the we cant find the y for the x i.e given that shows Parent (x) represented as Parent Of (x,y)

In mathematically,

Parent (x) = Parent (x,y)

This does not seems true

Therefore this statement is false

Hence, the fourth option is true

All other statements that are mentioned is false

Answer:

[tex]5^2[/tex]·[tex]3^2[/tex]·[tex]19[/tex]

Step-by-step explanation:

Well to find the prime factor we make the prime factorization tree.

Look at the image below↓

Thus,

the prime factorization of 4275 is [tex]5^2[/tex]·[tex]3^2[/tex]·[tex]19[/tex]

Hope this helps :)

Answer:

5:2

Step-by-step explanation:

There are 5 apples and 2 cherries. Put them together to get 5:2.

Answer:

D. [tex] lw = (x + 5)(x - 5) ; 119 ft^2 [/tex]

Step-by-step explanation:

Dimensions of the old square brick patio:

[tex] length (l) = x ft [/tex]

[tex] width (l) = x ft [/tex]

Note: a square has equal side measure

Dimensions of the new patio

[tex] length (l) = (x + 5) ft [/tex] ==> she increased length by 5 ft

[tex] width (l) = (x - 5) ft [/tex] she reduced width by 5 ft

Expression of the length and width of the new patio is: [tex] lw = (x + 5)(x - 5) [/tex]

Area of the new patio:

Dimension of original patio = x by x = 12 ft by 12 ft.

To find area of the new patio, replace x with 12 in the expression, [tex] lw = (x + 5)(x - 5) [/tex] , which gives you the area.

[tex] area = lw = (12 + 5)(12 - 5) [/tex]

[tex] area = (17)(7) [/tex]

[tex] area = 199 ft^2 [/tex]

Answer is D. [tex] lw = (x + 5)(x - 5) ; 119 ft^2 [/tex]

Answer:

We conclude that the percentage of blue candies is equal to 29​%.

Step-by-step explanation:

We are given that in a random selection of 100 colored​ candies, 28​% of them are blue. The candy company claims that the percentage of blue candies is equal to 29​%.

Let p = population percentage of blue candies

So, Null Hypothesis, [tex]H_0[/tex] : p = 29%     {means that the percentage of blue candies is equal to 29​%}

Alternate Hypothesis, [tex]H_A[/tex] : p [tex]\neq[/tex] 29%     {means that the percentage of blue candies is different from 29​%}

The test statistics that will be used here is One-sample z-test for proportions;

                         T.S.  =  [tex]\frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n} } }[/tex]  ~ N(0,1)

where, [tex]\hat p[/tex] = sample proportion of blue coloured candies = 28%

           n = sample of colored​ candies = 100

So, the test statistics =  [tex]\frac{0.28-0.29}{\sqrt{\frac{0.29(1-0.29)}{100} } }[/tex]

                                    =  -0.22

The value of the z-test statistics is -0.22.

Also, the P-value of the test statistics is given by;

               P-value = P(Z < -0.22) = 1 - P(Z [tex]\leq[/tex] 0.22)

                            = 1 - 0.5871 = 0.4129

Now, at a 0.10 level of significance, the z table gives a critical value of -1.645 and 1.645 for the two-tailed test.

Since the value of our test statistics lies within the range of critical values of z, so we insufficient evidence to reject our null hypothesis as it will not fall in the rejection region.

Therefore, we conclude that the percentage of blue candies is equal to 29​%.

Answer:

[tex] S.A = 135.6 yd^2 [/tex] (

Step-by-step explanation:

Surface area of cone is given as:

Surface Area (S.A) = πr(r + l)

Where,

[tex] r = radius = 3 yd [/tex]

[tex] l = slant height = 11.4 yd [/tex]

Take π as 3.14

Plug the given values into the formula to find the surface area.

[tex] S.A = 3.14*3(3 + 11.4) [/tex]

[tex] S.A = 9.42(14.4) [/tex]

[tex] S.A = 135.6 yd^2 [/tex] (rounded to the nearest tenth)

Answer:

Step-by-step explanation:

-8*3= -24+14=-10

Answer:

-12 and 2.

Step-by-step explanation:

-12*2= -24,

-12+2=-10

Answer:

ƒ(x) = 3|x – 2| + 1

To find f(-2) substitute - 2 into f(x)

That's

f(-2) = 3| - 2 - 2 | + 1

= 3| - 4| + 1

But absolute value of any number is positive including negative numbers

That's

| - 4 | = 4

So we have

3(4) + 1

12 + 1

To find f(1) substitute 1 into f(x)

That's

f(1) = 3 | 1 - 2| + 1

= 3 | - 1| + 1

But | - 1| = 1

= 3(1) + 1

= 3 + 1

Hope this helps you

Answer:

f(-2) =13

f(-1) = 4

Step-by-step explanation:

ƒ(x) = 3|x – 2| + 1

Let x = -2

ƒ(-2) = 3|-2 – 2| + 1

       = 3 | -4| +1

Taking the absolute value

    = 3*4 +1

    = 12 +1 = 13

Let x = 1

ƒ(1) = 3|1 – 2| + 1

       = 3 | -1| +1

Taking the absolute value

    = 3*1 +1

    = 3 +1 = 4

Answer:

its b i got it right on edge

Step-by-step explanation:

Answer:

[tex]\sf a) \ 2.5\\b) \ 7.5[/tex]

Step-by-step explanation:

[tex]\displaystyle \frac{250}{100}[/tex]

[tex]\sf Express \ as \ a \ decimal.[/tex]

[tex]=2.5[/tex]

[tex]\sf Multiply \ 3\% \ with \ 250.[/tex]

[tex]\displaystyle 250 \times \frac{3}{100}[/tex]

[tex]\displaystyle \frac{750}{100}=7.5[/tex]

Answer:

Therefore, the volume V cyl is given by the equation: V cyl πr 2h (area of its circular base times its height) where r is the radius of the cylinder and h is its height. The volume of the cone (V cone) is one-third that of a cylinder that has the same base and height: .

Step-by-step explanation:

Answer:

Step-by-step explanation:

You can count the unit squares to find the area. There are 7 of them, so the area is 7 square units.

__

There are 4 unit lengths along the bottom perimeter, 3 up each side (for a total of 6), and 4 more unit lengths across the tops of the squares in the figure. The perimeter is a total of 4+6+4 = 14 units.

Step-by-step explanation:

The formulae to find them are:

and mode= number of greatest frequency.

(note; f is frequency, N is number of data and x is x is the raw data)

hope it helps..

Answer:

21.5%

Step-by-step explanation:

51 divided by 237 to get percentage (237*.215% = 51)

Answer:

[tex]\boxed{195}[/tex]

Step-by-step explanation:

The fruit flies grows geometrically.

[tex]125=80k^2[/tex]

Find the value of k.

[tex]\sqrt{\frac{125}{80} } =k[/tex]

[tex]1.25=k[/tex]

[tex]P=80(1.25)^t[/tex]

[tex]t[/tex] is number of days.

[tex]P=80(1.25)^4[/tex]

[tex]P=195[/tex]

Answer:

13

Step-by-step explanation:

Divide:

27 ÷ 2 = 13 r1

So, he can buy 13 but has a dollar left.

Hope this helps you out! : )

Step-by-step explanation:

angle A = angle B( Corresponding angles)

so,

5x - 5 = 3x + 13

=> 5x - 3x = 13 + 5

=> 2x = 18

=> x = 9

angle B = 3x + 13 = (3×9) + 13 = 27 + 13 = 40

Answer:

x=9, ∠B=40

Step-by-step explanation:

In this case, ∠A≅∠B, as they are corresponding angles. Therefore, if you set up the equation to be 5x-5=3x+13,

2x=18, x=9

∠B=3(9)+13=27+13=40