help me please thank you in advance

Answer:

If that's the whole question then what exactly are we trying to solve here?

Step-by-step explanation:

Answer:

16 hours

Step-by-step explanation:

Given

[tex]Initial = -124[/tex]

[tex]Rate = 8[/tex] per hour

Required

Determine the number of hours it gets to 4 degrees

Let the temperature at every hour, h be T.

So, we have:

[tex]T = Initial + Rate * h[/tex]

[tex]T = -124+ 8* h[/tex]

[tex]T = -124+ 8h[/tex]

To calculate the time it gets to 4 degrees. We first substitute 4 for T; then solve for h

[tex]4 = -124+ 8h[/tex]

Collect Like Terms

[tex]8h = 4 + 124[/tex]

[tex]8h = 128[/tex]

Solve for h

[tex]h = \frac{128}{8}[/tex]

[tex]h = 16[/tex]

Answer:

the distributive property of 3(13+5)=(3*13)+(3*5)=39+15=54

18 multiple by 3 answer 57

Step-by-step explanation:

6c+2t=24

3c+5t=45

8t=64

t=8

c=1.66

Answer:

The equation is 18h=378

h=21

Step-by-step explanation:

So first you have to set up the equation

so if she makes 18 dollars an hour the first part of the equation would be 18h

She made 378 dollars in one week so now the equation is 18h=378

The answer is h=21 because 378/18 is 21

Answer:

A

Step-by-step explanation:

(X) =x3 to the function q(x-6)3-4

Answer:

1 in

Step-by-step explanation:

We are given that

Height of tree in original  drawing=12 in

Julie's drawing tree height=1/4 of original size

Sahil's drawing tree height=1/3 of original size

We have to find the difference between the height of the tree in Julie's and Sahil's drawings.

Height of tree in Julie's drawing=[tex]\frac{1}{4}\times 12[/tex]in

Height of tree in Julie's drawing=3 in

Height of tree in Sahil's drawing=[tex]\frac{1}{3}\times 12[/tex]in

Height of tree in Sahil's drawing=4 in

Difference between the height of the tree in Julie's and Sahil's drawings=4 in-3in

Difference between the height of the tree in Julie's and Sahil's drawings=1 in

Answer:

(°C×9/5)+32= 32°F is the answer

Ratio of two numbers = 2:3

The larger number = 6

Let the smaller number be x.

Which means :

[tex] =\tt 2 : 3 \: = \: x : 6[/tex]

[tex] = \tt \frac{2}{3} = \frac{x}{6} [/tex]

[tex] =\tt 2 \times 6 = 3 \times x[/tex]

[tex] =\tt 12 = 3x[/tex]

[tex] =\tt x = \frac{12}{3} [/tex]

[tex]\hookrightarrow\color{plum}\tt \: x = 4[/tex]

▪︎Therefore, the smaller number = 4

36 compared to 6 = [tex] \tt \frac{36}{6} [/tex]

Let the number be x.

Which means :

[tex] = \tt \frac{36}{6} = \frac{x}{3} [/tex]

[tex] =\tt \frac{36 \div 2}{6 \div 2} = \frac{x}{3} [/tex]

[tex] =\tt \frac{36}{6} = \frac{18}{3} [/tex]

▪︎Therefore, the fractional number [tex] \tt \frac{18}{3} [/tex] is equal to [tex] \tt \frac{36}{6} [/tex].

Number of Rose's for 24 red Rose's = 6

This can be written in a ratio as 24:6

Number of roses = 8

Let the number of red roses for these roses be x.

Which means :

[tex] =\tt \frac{24}{6} = \frac{x}{8} [/tex]

[tex] =\tt 24 \times 8 = 6 \times x[/tex]

[tex] =\tt 192 = 6x[/tex]

[tex] =\tt x = \frac{192}{6} [/tex]

[tex]\hookrightarrow \color{plum}\tt x = 32[/tex]

▪︎Therefore, 32 red roses are there if there are 8 roses.

Number of children for 2 adults = 7

This can be written in a ratio as 7:2

Number of children in the plaza = 21

Let the number of adults be x.

Which means :

[tex] = \tt \frac{7}{2} = \frac{21}{x} [/tex]

[tex] =\tt7 \times x = 2 \times 21 [/tex]

[tex] =\tt 7x = 42[/tex]

[tex] =\tt x = \frac{42}{7} [/tex]

[tex] \hookrightarrow \color{plum}\tt \: x = 6[/tex]

▪︎Therefore, 6 adults were there in the plaza.

Cost of 12 pencils = P60

Cost of 1 pencil :

[tex] = \tt \frac{60}{12} [/tex]

[tex] =\tt P5[/tex]

Thus, the cost of one pencil = P5

Cost of 25 pencils :

= Cost of one pencil × 25

[tex] =\tt 5 \times 25[/tex]

[tex] \color{plum}=\tt \: P \: 125[/tex]

▪︎Therefore, the cost of 25 pencils = P125

Answer:

1 unit left and 4 units down

Answer:

4.242;

$500.276 ; $46.724

Step-by-step explanation:

Given the regression equation :

value = -123.298 + 4.242 revenue

y = - 123.298 + 4.242x

y = team value ; x = Revenue

(a) What is the slope of this line?

From ;

y = mx + c

Where ; m = slope

Comparing the equation with, the model equation ;

mx = 4.242x ; Hence, slope, m = 4.242

(b) The HORNETS are the NBA's most valuable team, valued at $547 million, with $147 million in revenue. Use the line to predict the value of the HORNETS from their revenue.

Predicted value of hornets based on their revenue :

Revenue = $147,000,000

y = - 123.298 + 4.242(147)

y = - 123.298 + 623.574

y = 500.276

Predicted value is about $500.276 million.

What is the error in this prediction?:

Error = Actual - predicted value

Error = 547 - 500.276 = $46.724 million

Answer:

The answer is 8

Step-by-step explanation:

If this answer helped you then please consider marking this as brainliest and like this respone :)

Answer:

Step-by-step explanation:M+F=39

M+F=39

F=M-9

Substitute

M + M - 9 = 39

2M = 48

M=48/2

M=24

24+F=39

F=39-24=15

F=15, M=24

Answer:

15 females

24 males

Step-by-step explanation:

Given;

39 students total

9 more male student than female

1. Set up an equation

Call the number of female student "x"

Since there are 9 more male students, the number of male students is (x + 9),

Assuming those are the only genders in the class, the equation formed is;

females + males = total

x + x + 9 = 39

2. Solve,

Simplify and inverse operations;

x + x + 9 = 39

2x + 9 = 39

2x = 30

x = 15

15 females

24 males

Answer:

[tex]\boxed {\boxed {\sf z=2.2}}[/tex]

Step-by-step explanation:

The z-score tells us how many standard deviations a value is away from the mean.

The formula is:

[tex]z=\frac{x- \overline{x}}{s}[/tex]

where x is the value, [tex]\overline {x}[/tex] is the mean, and s is the standard deviation.

We want to find the z-score for the score of an 83, the mean is 72, and the standard deviation is 5.

[tex]x=83 \\\overline {x}= 72 \\s=5[/tex]

Substitute the values into the formula.

[tex]z=\frac{83-72}{5}[/tex]

Solve the numerator.

[tex]z=\frac{11}{5}[/tex]

Divide.

[tex]z=2.2[/tex]

The z-score is 2.2, which means the score of 83 is 2.2 standard deviations above the mean.

Answer:

10/-4 or 5/-2

Step-by-step explanation:

use y2-y1/x2-x1 equation.

Answer: The answer is B. 50

Step-by-step explanation:

Answer:

its c

Step-by-step explanation:

i took the test

Answer:

0.44 and 44/100

Step-by-step explanation:

Answer:

7 Cows and 8 Chickens

Step-by-step explanation:

Note that cows have four legs each and chickens have two legs each.

if there were only cows, then 15 cows times 4 legs for each cow would give 15 x 4 = 60 legs. 60 is greater than 44, so some (maybe all) of the animals are chickens.

If there were only chickens, then 15 chickens times 2 legs for each chicken would give 15 x 2 = 30 legs. 30 is less than 44, so we have confirmed that there is a mixture of both cows and chickens on the farm.

One approach would be to build a table of possibilities:

Total legs will equal number of cows times 4 plus number or chickens times 2 and we know the total number of animals is 15, so we keep cows plus chickens equal to 15 and just keep adding a cow and subtracting a chicken and do the math until.we get 44 legs. We know that it will take less than 13 tries, since we already ruled out 15 cows or 15 chickens. We'll start with 1 cow and 14 chickens and go from there

1 Cow + 14 Chickens = (1 x 4) + (14 x 2) = 4 + 28 = 32 legs

2 Cows + 13 Chickens = (2 x 4) + (13 x 2) = 8 + 26 = 34 legs

3 Cows + 12 Chickens = (3 x 4) + (12 x 2) = 12 + 24 = 36 legs

4 Cows + 11 Chickens = (4 x 4) + (11 x 2) = 16 + 22 = 38 legs

5 Cows + 10 Chickens = (5 x 4) + (10 x 2) = 20 + 20 = 40 legs

6 Cows + 9 Chickens = (6 x 4) + (9 x 2) = 24 + 18 = 42 legs

7 Cows + 8 Chickens = (7 x 4) + (8 x 2) = 28 + 16 = 44 legs

We can stop here because we can see that 7 Cows and 8 Chickens have a total of 44 legs.

Another way to approach this is to use algebra and to make is shorter to write we can assign a variable to each item and relate them in some way.

Let's use the letter x to stand for cows and the letter y to stand for chickens so we don't have to keep writing chickens and cows. x and y are just common letters to use, by the way, could use w and k perhaps since cow has a w and chicken has a k...sadly they both start with c, so we can't use that for both.

We know a couple different, but related, things.

One thing we know is that the total number of animals is 15. We can write that as:

x + y = 15

That means cows (x) plus chickens (y) equals 15.

A second thing we know is that the total number of legs is 44. We can write that as

4x + 2y = 44

That means 4 times x (cow) plus 2 times y (chicken) is equal to 44 since each cow has 4 legs and each chicken has 2 legs.

Since we now have two related equations and two variables we can solve for the variables.

If we take the first equation and rearrange it, by subtracting x from both sides, we can see that one way to do it is the following

y = 15 - x

That means the number of chickens (y) is equal to 15 minus the number of cows (x). As long as we do the same thing on both sides of the equals sign the equation is still.equal...you will see this again below.

Now we can then substitute 15 - x for y in the second equation and then all we have is x in that equation. (We can do this because y is equal to 15 minus x...they both have the same value and mean the same thing...they are equal to each other)

4x + 2(15 - x) = 44

As you can see, we now have 2 times 15 minus x where we had 2 times y before. If we multiply the 2 through we get because 2 times 15 is 30 and 2 times x is 2x

4x + 30 - 2x = 44

We can subtract the 2x from 4x and we get

2x + 30 = 44

Now we can subtract 30 from both sides of the equation because as long as we do the same thing on both sides of the equals sign the equality holds true

2x + 30 - 30 = 44 - 30

30 minus 30 is zero and 44 minus 30 is 14 so now we have

2x = 14

If we divide both sides by two, we still maintain the equality and we get x on one side as 2x divided by 2 is 1x or just x and we get 7 on the other side as 14 divided by 2 is 7

x = 7

That means we have 7 Cows as x represents cows, so half the problem solved

If we now go back to our first equation,

x + y = 15

We can replace x with 7 and get

7 + y = 15

We can subtract 7 from both sides and maintain the equality and isolate y

7 - 7 + y = 15 - 7

Again, 7 minus 7 is zero so we have isolated y and 15 minus 7 is 8

y = 8

This means we have 8 Chickens since y represents chickens

Once again we have shown that Old MacDonald has 7 Cows and 8 Chickens

Answer:

1.55555555

Step-by-step explanation:

7 - 2 1/3

4 2/3

4 2/3 /3

=1.5555555

Answer:

20 because 40 is a positive and spent is negative

Step-by-step explanation:

Answer:

x = 5

$15.00 is the total amount of money Jamal has right? To find the remaining amount of money Jamal has subtract 15 - 7.5 (price of nachos) = 7.5 (remaining amount of money Jamal has.) Now for part 2, since the sour straws are $1.50 each you just have to multiply X to get close as close to the remaining amount of money as possible.

1.50× 5 (amount of sour straws) is equal to 7.50 (price of 5 sour straws).

To check your answer let's add the price of nachos (7.50) and 5 sour straws (7.50) which is 15.00 the total amount Jamal brought with him.

Let me know if you have any other questions :)

Answer:

I do not know

Step-by-step explanation:

Answer:

b = 2

Step-by-step explanation:

4b −2 = 6

First. Add 2 to both sides

4b −2  = 6

     +2    +2

4b = 8

Second. Divide both sides by 4

4b/4     8/4

b = 2

Hope I helped!!

Answer:18

Step-by-step explanation: 19-7=12 bolts and 7+7=14 so 12-14=18

If a sample of 7 bolts is selected, then the probability that all in the sample are defective = [tex]\frac{7}{50388}[/tex]

If a sample of 7 bolts is selected, then the probability that none in the sample are defective = [tex]\frac{66}{4199}[/tex]

"Probability is a branch of mathematics which deals with finding out the likelihood of the occurrence of an event."

P(A) = n(A)/n(S)

where,  n(A) is the number of favorable outcomes, n(S) is the total number of events in the sample space.

[tex]^nC_r=\frac{n!}{r!(n-r)!}[/tex]

For given question,

Out of 19 bolts, 7 bolts are defective.

So 19 - 7 = 12 bolts are non-defective.

If sample of 7 bolts is selected.

The total number of ways of selecting 7 bolts from the 19 bolts.

Using combination formula,

[tex]^{19}C_7\\\\=\frac{19!}{7!(19-7)!} \\\\=50388[/tex]

Let event A:  all bolts in the sample are defective

n(A) = 7

So the probability that all in the sample are defective would be,

[tex]P(A)=\frac{7}{50388}[/tex]

Let event B: no bolt in the sample are defective

This means the sample of 7 bolts has non-defective.

The total number of ways of selecting 7 bolts from the 12 non-defective bolts.

Using combination formula,

[tex]^{12}C_7\\=\frac{12!}{7!(12-7)!}\\\\ =792[/tex]

son n(B) = 792

So, the probability that none in the sample are defective would be,

[tex]P(B)=\frac{792}{50388} \\\\P(B)=\frac{66}{4199}[/tex]

Therefore,  If a sample of 7 bolts is selected, then the probability that all bolts in the sample are defective = [tex]\frac{7}{50388}[/tex]

If a sample of 7 bolts is selected, then the probability that none in the sample are defective = [tex]\frac{66}{4199}[/tex]

Learn more about probability here:

brainly.com/question/11234923

#SPJ2

Answer: Sorry but I don't know which one to do and can you move it too the left a little bit so I may see the whole sentence?

Step-by-step explanation:

Answer:

i think it is 11%

Step-by-step explanation:

cause there is 11 of 20

Answer:

X=−10

Step-by-step explanation:

i hope this helps you ^_^

have a nice day/night

Equation/Question:

1/2(x-106)=12+7x

Answer/Steps to answer: (x= -10)

1. Simplify  1/2(x-106) to x-106/2.

x-106/2=12 + 7x

2. Multiply both sides by 2.

x−106=24+14x

3. Subtract x from both sides.

−106=24+14x−x

4. Simplify  24+14x-x to  24+13x.

-106=24+13x

5. Subtract 24 from both sides.

-106-24=13x

6. Simplify  -106-24 to −130.

-130=13x

7. Divide both sides by 13.

130/13=x

8. Simplify  130/13 to  1010.

-10=x

9. Switch sides.

x=-10

-------------

Checking:

1/2(x−106)=12+7x

1. Let x=-10x=−10.1

1/2​(−10−106)=12+7×−10

2. Simplify -10-106 to −116.

1/2​×−116=12+7×−10

3. Move the negative sign to the left.

-116/2=12+7×−10

4. Simplify 116/2 to 58

−58=12+7×−10

5. Simplify 7×−10  to −70.

−58=12−70

6. Simplify  12-70 to −58.

−58=−58

Done by NeighborhoodDealer

Answer:

? confused

Step-by-step explanation:

Answer:

Me too

Step-by-step explanation:

Answer:

Isosceles acute

Step-by-step explanation:

2 of the sides are the same and 1 is different therefore it is isosceles. Alol the angles are acute.

Answer:

3 3/20

Step-by-step explanation:

so you make the denominator the same for the two numbers shown. I did 20. So 3/5 turns into 12/20 and 1/4 turns into 5/20 (you can do 12 if you like for the denominator also) So now, the equation is 3 12/20 minus 5/20, which i got 3 3/20.