Solve -7 2/3+(-5 1/2)+8 3/4=

Answer:

hambuger cheesebuger big mac whooper

Step-by-step explanation:

Answer:

This is easy. Just to help you, and not necessarily cheat, it already tells you what the missing numbers are. So if a is 3, you can just go 2 x 3 x 3. when numbers are together like this, or letters, you multiply. (3(4), or 2a) You do that with the rest of your equations, and you will get your answers. But if this isn't what you having a problem with, then just tell me.

Answer:

d

Step-by-step explanation:

Larger samples more closely resemble the population from which they come.

Think of the difference between sampling hundreds of people from a town, perhaps asking them if they've ever ordered fast food.  If you go to McDonald's and ask customers as they come out, you wouldn't expect those answers to represent the entire population of the town, right?

Answer:

No, Zahra does not have enough staff available

Step-by-step explanation:

Given

[tex]Ratio = 2 : 15[/tex] --- staff to people

[tex]Staff = 10[/tex]

[tex]People = 90[/tex]

Required

Are there enough staff?

Start by representing the data as a ratio

[tex]Ratio = Staff : People[/tex]

So, we have:

[tex]Ratio = 10 : 90[/tex]

Divide by 10

[tex]Ratio = 1 : 9[/tex]

Multiply by 2

[tex]Ratio = 2 : 18[/tex]

This means that, she has 2 members of staff for every 18 people (instead of the expected 2 to 15 people)

Hence, Zahra does not have enough staff available

Answer:

120.08

Step-by-step explanation:

15.8 x 7.6

-> 120.08 [tex]m^2\\[/tex]

Answer:

What is your question?

Step-by-step explanation:

Answer: can you tell me what the x= to because I can’t solve it like that if you give me what the x= to I tell you the answer

Step-by-step explanation:

Answer:

2^x+4^x-7

Step-by-step explanation:

Answer:C

Step-by-step explanation:

Answer:

2(6 7/8) + w

Step-by-step explanation:

Disclamer: NOT 2(6 7/8 + w)

Answer:

$2.30

Step-by-step explanation:

The original price is $2.30 an it goes up by 100% which means another 2.30. So add 2.30 and 2.30 together you get 4.60 now divide that by two since the magazine is 50% off and you get the original price which was 2.30

The discount price would be an amount of $2.30.

The percentage is defined as a ratio expressed as a fraction of 100.

For example, If Misha obtained a score of 67% on her exam, that corresponds to 67 out of 100.

The convenience store bought a magazine for $2.30 and increased the price by 100%. A week later, the retailer reduced the price of the magazine by half.

As per the given situation, the required solution would be as:

The original price is $2.30, then it increases by 100%, or another $2.30. So add 2.30 and 2.30 to get 4.60, then split that by two because the magazine is 50% discounted to obtain the original price of 2.30.

⇒ $2.30 + $2.30

⇒ $4.60

⇒ $4.60 / 2

⇒ $2.30

Therefore, the discount price would be amount of $2.30.

Learn more about the percentages here:

brainly.com/question/24159063

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The price of orange last week was $3.75

An equation is used to show the relationship between two or more numbers and variables.

The price of oranges increases by 20% each week.

The price of oranges this week is $4.50. Hence:

Price of orange last week (x) is given by:

4.5 = x + 20% of x

4.5 = x + 0.2x

1.2x = 4.5

x = 3.75

The price of orange last week was $3.75

Find out more on equation at: https://brainly.com/question/24868934

Answer:

Q1 = 2

Q3 = 3

I think that's the answer

Hope this helps! (°◡°♡).:｡

Answer:

Q1 is 2 Q2 is 3

Just cut the list of number into quarters

Answer:

answer: d

Step-by-step explanation:

Answer:

-16

Step-by-step explanation:

4a+(-8)

4(-2)+(-8)

-8+(-8)

= - 16

Answer:

a=2

Step-by-step explanation:

ax-8=x+2

when x=2

2a-8=2+2

2a=4+8

2a=12

a=12/2=6

Answer:

13.4

Step-by-step explanation:

13.4 is the answer because a perimeter is the total distance around the shape

when you take 152.6 and subtract all of the different sides your left with the length of the last side

152.6 - 13.1 - 13.1 - 9.3 - 54.2 - 9.3 - 27.1 - 13.1 = 13.4

Answer:

y = -45x + 13

Step-by-step explanation:

The equation is *** y = [tex]-5x^{2}[/tex]  - 20x +13 ***

First: you have to look at [tex]-5x^{2}[/tex]  which would equal -25x

Second: you have take the -25x and put into the equation... y = -25x - 20x +13

Third: You have subtract -25x - 20x which equals -45x

Lastly: Now you have y = -45x + 13 and since 13 does NOT have a variable like -45x does, you then know that you have finished the equation

Answer:

bh

Step-by-step explanation:

34

Answer:

10 − 3 x = 2 x + 5 \sqrt{10-3x}=\sqrt{2x+5} 10−3x ​=2x+5 ​square root of, 10, minus, 3, x, end square root, equals, square root of, 2, x, plus, 5, end square root.

Step-by-step explanation:

=========================================================

Explanation:

The ratio of yellow to red is 3:5. This could mean we have any of the following situations (pick one):

and so on. In general, we would have 3x yellow blocks and 5x red blocks. The ratio 3x:5x reduces to 3:5 when dividing both parts by x. The x is some positive whole number. The order is important because yellow must be listed first, then red second.

The same idea applies to the other ratio 7:2, which is the blue to red. In that case, we could have...

and so on. Notice that items in bold (in each list) have "10 red" as part of it. This is directly from the fact we multiply the 5 and 2 to get 5*2 = 10.

So we can connect the two ratios to have:  6 yellow, 10 red, 35 blue.

The ratio of yellow to blue is 6:35. This is the final answer. We cannot reduce this ratio any further due to 6 and 35 having no common factors other than 1. It's the same as saying the fraction 6/35 can't be reduced further.

Answer:

The 90% confidence interval for the difference of the population means is approximately (-17.98, -2.02).

Step-by-step explanation:

Before building the confidence interval, we need to understand the central limit theorem and subtraction of normal variables.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

Subtraction between normal variables:

When two normal variables are subtracted, the mean is the difference of the means, while the standard deviation is the square root of the sum of the variances.

Boys:

Mean of 75, sample of 45, standard deviation of 25.

This means that [tex]\mu_B = 75, s_B = \frac{25}{\sqrt{45}}[/tex]

Girls:

Mean of 85, sample of 30, standard deviation of 17.

This means that [tex]\mu_G = 85, s_G = \frac{17}{\sqrt{30}}[/tex]

Distribution of the difference of mean grades of boys and girls:

[tex]\mu = \mu_B - \mu_G = 75 - 85 = -10[/tex]

[tex]s = \sqrt{s_B^2+s_G^2} = \sqrt{(\frac{25}{\sqrt{45}})^2+(\frac{17}{\sqrt{30}})^2} = 4.85[/tex]

Confidence interval:

As stated, the critical value is [tex]z = 1.645[/tex]

The margin of error is of:

[tex]M = zs = 1.645*4.85 = 7.98[/tex]

Lower bound:

[tex]\mu - M = -10 - 7.98 = -17.98[/tex]

Upper bound:

[tex]\mu + M = -10 + 7.98 = -2.02[/tex]

The 90% confidence interval for the difference of the population means is approximately (-17.98, -2.02).

Answer:5:55pm

Step-by-step explanation:

7:30-0:20=7:10-1:00=6:10-0:15=5:55pm

Answer:

the answer is that she would have to pick 4and let the iPod pick 4

Answer:

heyy matee...

see

Vertices (V) = 8

Faces (F) = 6

Edges (E) => F + V - E = 2 (EULER'S FORMULA)

so 6 + 8 - 2 = E => E = 12

now just look at options

and however its a common thing that if Vertices are 8 and Faces are 6 and Edges are 12 then it is cube or cuboid

and another name of cuboid is rectangular prism ;)

hence answer is option c - rectangular prism

brainliest possible ?

Answer:

B. 1

Step-by-step explanation:

I calculated it logically

Answer:

4x32-3+5x2=

128-3+5x2

128-3+10

128+7=

135