the temperature in a room rises 1 F every 3 minutes. When the scientist enters the room, it is 50 F. a) write the equation b) what will be the temperature after 21 minutes? c) when will the temperature be 55 F ?

Answers

Answer 1

Answer:

equation is y= 50 + 3f

57F

15 Minutes

Step-by-step explanation:

a) the equation above because 50 is the starting temp and every 3 minutes is another degree F

b) if the temp rises 1 degree every 3 minutes, then 21/3 is 7 degrees hotter plus 50, which is 57 F.

c) if 50 plus 3f is the equation, then 3 times 5 will make 55 degrees. After 15 minutes, the temp will be 55 F.


Related Questions

What difference did 0% score make? Does this mean represent Brandee ability more accurately

Answers

Because of the test she did not take, Brandee scored a 9.75% lower average than her average score once her teacher allowed her to take the test again.

The average obtained once Brandee's teacher allowed him to present the missing test is much more accurate regarding Brandee's ability, this can be identified since it went from an average of 85.14% with 7 scores, to one of 84.25% with 8 scores, different from the average of 74.5% obtained thanks to that score of 0.

BRANDEE'S AVERAGE CALCULATION.

In the exercise, you can see Brandee's scores are: 80%, 92%,  91%, 75%, 89%, 84%, 0%, and 85%, if you calculate the average in that case:

First Brandee's average = (80 + 92 +  91 + 75 + 89 + 84 + 0 + 85) / 8First Brandee's average = 74.5

But when Ms. Juarez allowed her to make up the missed test, in which she got 78%, The average increased too much:

Second Brandee's average = (80 + 92 +  91 + 75 + 89 + 84 + 78 + 85) / 8Second Brandee's average = 84.25

As can be identified, most of Brandee's scores are above 80%, therefore, it is considered more accurate that her average is above this value, that is, it is an average that would represent much better the ability of Brandee.

You can see another exercise about average in the next link: https://brainly.com/question/20763190?referrer=searchResults

Dan’s salary is $70 less than Sam’s,
whose weekly salary is $50 more than
Jenʼs. If Jen earns $280 per week,
how much money does Dan earn per
week?

Answers

The money earned per week by Dan is $260.

Given that,

Jen earns $280 per week.Sam weekly salary is $50 more than Jens so Sam salary should be = $280 + $50 = $330.Dan's salary should be $70 less than Sam's.

So,

The money earned per wek by Dan is

= $330 - $70

= $260

Therefore we can conclude that The money earned per week by Dan is $260.

Learn more about the money here: brainly.com/question/23020158

the height of tower A is 842 feet more than tower B. the two towers have a combined height of 1,920 feet. what are the heights of each tower

Answers

884 + rit= 138 tres plas 0

The shortest fish ever recorded is the dwarf goby, found in the Indo-Pacific. The female of this species is about 35 over 100 inches long. Use a decimal to to write the length of 2 females

Answers

The answer would be 0.7 inches

10. The product of two integers is -18. The difference between the integers is 9. The sum of the
integers are 3. What are the two integers?

Answers

Answer:

x = 6

y = - 3

Step-by-step explanation:

x * y = - 18

x - y = 9. 3-y-y = 9. 3 -2y = 9.

-2y = 9-3

y = 6/-2

y = -3

x + y = 3. x = 3-y

x * -3 = - 18

x = -18/-3

x = 6

Evaluate each expression 3d-4 d=1.2

Answers

Answer:

3d - 4 = -0.4

When d = 1.2

Step-by-step explanation:

Use PEMDAS to solve the equation

3(1.2) - 4

= 3.6 - 4

= -0.4

17. Callie's cat lost 4-pounds before having
surgery. Two weeks after having sungery, her
7
cat gained 25 pounds. What was the total
change in weight of Callie's cat?

Answers

Answer:

30 lbs

Step-by-step explanation:

-4+7+25=

-4+34=

30

Help plzzz math people

How much do you think our environment or nature is worth?.

3/4 sentences please

Answers

Answer:

i think is worth the planet itself

f(x) = -22 – 10
Find f(-4)

Answers

f = 8

f(-4) = -22 - 10

-4f = -22 - 10

-4f = -32

f = 8

a computer sales associate makes $74 each day that he works and makes approximately $20 in commission for each computer that he sells. if he wants to make at least $254 in one day, at least how many computers does he need to sell?

Answers

Answer: 120

Step-by-step explanation:

your face

A firm manufactures two types of couplings, A and B, each of which requires processing time on lathes, grinders and polishers. The machine times needed for each type of coupling are given in the table Coupling type Time required (hours) Lathe Grinder Polisher The total machine time available is 250hours on lathes, 310 hours on grinders and 160hours on polishers. The net profit per coupling of type A is $9 and of type B is S10. Formulate a linear model from the above information. Using the model, determine
a) The number of each type to be produced to maximize profit
b) The maximum profit

Answers

Answer:

A

Step-by-step explanation:

Estimate 4 1/8 x 5 1/2

Answers

[tex]4 \frac{1}{8} \times 5 \frac{1}{2} \\ \\ \frac{33}{8} \times \frac{11}{2} = \frac{363}{16} \\ \\ = \frac{363}{16} = 22.6875 = 22 \frac{11}{16} [/tex]

I hope I helped you^_^

What is the next term of the geometric sequence? 9,000, 900, 90

Answers

Answer:

9,000, 900, 90, 9

Step-by-step explanation:

9,000, 900, 90, 9• Divide the term by 10.9,000 ÷ 10 = 900900 ÷ 10 = 9090 ÷ 10 = 9

[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]

Answer:

9

Step-by-step explanation:

Find the common ratio:

r = t₂ / t₁ = 900/9000 = 1/10r = t₃/t₂ = 90/900 = 1/10

Find the next term:

t₄ = t₃*r = 90*1/10 = 9

Help will give points

Answers

Answer:

Step-by-step explanation:

URGENT. PLEASE GIMME A RIGHT ORDER AND I MAY GIVE BRAINLIEST

Answers

Step 1: Distributive Property
Step 2: Associative Property (the parentheses were dropped)
Step 3: Commutative Property (terms were moved around)
Step 4: Combining Like Term
Step 5: Subtraction Property of equality (16 was subtracted from both sides)
Step 6: Division Property of equality (both sides were divided by 4)

Find the compound interest of N5000 for 2 years at 5% per annum

Answers

SOLUTION

For finding the compound Interest first we need to get the amount and then subtract the value of principal from amount

Calculation Begins

Principal = 5000, Rate of Interest = 5%, Time = 2 yrs

[tex] \looparrowright \sf{A = P(1 + \frac{r}{100} )^{n} } \\ \\ \looparrowright \frak{ {\sf A} = 5000(1 + \frac{5}{100} )^{2} } \\ \\ \looparrowright \frak{ {\sf A} = 5000(1 + \frac{1}{20} )^{2} } \\ \\ \looparrowright \frak{ {\sf A} = 5000( \frac{21}{20})^{2} } \\ \\ \looparrowright \frak{ {\sf A} =5000 \times \frac{441}{400}} \\ \\ \looparrowright \frak{ {\sf A} = 12.5 \times 441} \\ \\\looparrowright \frak{ {\sf A} = 5152.5} [/tex]

Hence the amount is 5152.5

Compound Interest = Amount - Principal

= 5152.5 - 5000 = 152.5

152.5 is the Compound Interest

Please help i will give extra points

Answers

Answer: 16

Step-by-step explanation: following PEMDAS you’ll solve the exponent first

3^2= 9

9+21/3

Then solve the division

21/3 = 7

9+7

Then addition

9+7= 16

Multiply (-1/3)(1/4)

Answers

Answer:

(-1/3 )(1/4)=(-1/12)

Step-by-step explanation:

(-1/3 )(1/4)

For fraction multiplication, multiply the numerators and then multiply the denominators to get

(-1/3 )(1/4)=(-1/12)

This fraction cannot be reduced.

Therefore:

(-1/3 )(1/4)=(-1/12)

What is the approximate value of this square unites

√139

Enter your answer, rounded to the nearest tenth, in the box.

Answers

2 root34 not sure if it was the right answer hope this help

6. One angle of a triangle is 20 degrees. The second angle-s measurement is four times the
third. What is the measure of the third angle?

Answers

Answer:

32

Step-by-step explanation:

first angle is 20, let third angle be x, therefore second angle equals 4x;  angle in a triangle is 180, so 4x+x+20=180;   5x=160;   x=32

What is 3x + 10x =65?

Answers

Answer:

x = 5

Step-by-step explanation:

3x + 10x =65

13x = 65

/13     /13

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

x = 5

Answer:

x = 5

Step-by-step explanation:

add both x values --> 13x

divide both sides by 13 ---> 5

so, x = 5

Angle z is 21 degrees larger than twice the measure of angle T. If z and t are supplementry, what is the measure of angle t

Answers

9514 1404 393

Answer:

  53°

Step-by-step explanation:

The sum of an angle and its supplement is 180°. Angle Z is (2T+21). Then the sum of angle T and angle Z is ...

  T + (2T +21) = 180

  3T +21 = 180 . . . . simplify

  T +7 = 60 . . . . . . divide by 3

  T = 53 . . . . . . . . subtract 7

The measure of angle T is 53°.

Write the expression using rational exponents. Then simplify and convert back to radical notation.

Answers

Answer:

The radical notation is [tex]3x\sqrt[3]{y^2z}[/tex]

Step-by-step explanation:

Given

[tex]\sqrt[3]{27 x^{3} y^{2} z}[/tex]

Step 1 of 1

Write the expression using rational exponents.

[tex]\sqrt[n]{a^{m}}=\left(a^{m}\right)^{\frac{1}{n}}[/tex]

[tex]=a^{\frac{m}{n}}:\left({27 x^{3} y^{2} z})^{\frac{1}{3}}[/tex]

[tex]$(a \cdot b)^{r}=a^{r} \cdot b^{r}:(27)^{\frac{1}{3}}\left(x^{3}\right)^{\frac{1}{3}} \cdot\left(y^{2}\right)^{\frac{1}{3}} \cdot(z)^{\frac{1}{3}}$[/tex]

[tex]=$(3^3)^{\frac{1}{3}}\left(x^{3}\right)^{\frac{1}{3}} \cdot\left(y^{2}\right)^{\frac{1}{3}} \cdot(z)^{\frac{1}{3}}$[/tex]

[tex]$=\left(3\right)\left(x}\right)} \cdot\left(y}\right)^{\frac{2}{3}} \cdot(z)^{\frac{1}{3}}$[/tex]

[tex]$=3x \cdot(y)^{\frac{2}{3}} \cdot(z)^{\frac{1}{3}}$[/tex]

Simplify [tex]$3 x \cdot(y)^{\frac{2}{3}} \cdot(z)^{\frac{1}{3}}$[/tex]

[tex]$=3 x \sqrt[3]{y^{2} z}$[/tex]

Learn more about radical notation, refer :

https://brainly.com/question/15678734

Evaluate sin(-120) + cos(-120)

Answers

Answer:

[tex] \sin( - 120) + \cos( - 120) \\ \\ = - \frac{ \sqrt{3} }{2} + ( - 0.5) \\ \\ = - \frac{ \sqrt{3} }{2} - \frac{1}{2} \\ \\ = { \boxed{ - ( \frac{1 + \sqrt{3} }{2}) }}[/tex]

Answer: -1.366

©
Which number does NOT represent a whole number?
A 8
B 12
C-10
15
3
tor

Answers

9514 1404 393

Answer:

  C.  -10

Step-by-step explanation:

Whole numbers are non-negative integers. -10 is not a whole number.

A maths teacher is analysing the marks of her cclass in a recent exam. she has noted the following: max score: 77 min score: 34 mean score 52 modal score: 49. next day she adds another student's score 95, who took the test another day. which of the following measures will NOT change as a result: Range, Max Value, Min Value, Mean, Median or Mode?

Answers

Answer:

The minimum value and mode

Step-by-step explanation:

range: the earlier range was 77-34 but now that there is a higher score the range will change to 95-34

max value: earlier the maximum value was 77, but this student scored 95 which is higher than 77

mean: the average will change as there is a new number, which is not the mean, in this case 52.

median: as another number has been added, the previous number will not be in the middle any more.

Question is below pls answer

Answers

Answer:

B is the answer

Step-by-step explanation:

helppp please right anwser only helpppppppppppp timed

Answers

Answer:

term 1 = with definition C

term 2 = definition D

term 3 = definition A

term 4 = definition B

Step-by-step explanation:

Answer:

1 w 4

2 w 3

3 w 1

4 w 2

Step-by-step explanation:

Complete the equation describing how
x and y are related.

y = 4x + [?]
Enter the answer that belongs in [?].

Answers

Answer:

I think it is -1, if it is wrong i am extremely sorry.

Step-by-step explanation:

Simplify 6(-5).

1
-30
30
-11

Answers

-30 positive times negative is negative so just multiply normally and then make in negative
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