In a lab, a substance is heated by 4°C each hour for 28 hours. What was the total change in temperature?

Answers

Answer 1

Answer:

112 difference in tempature

Step-by-step explanation:

multiply 4x28


Related Questions

its a image, i attached here.

Answers

Answer:

Step-by-step explanation:

First expression

54+11 =65

second expression

7x+13x= 20x

Third expression

(7x+54)+(13x+11)

7x+54+13x+11    

(7x+13x)+(54+11)      

20x+65

Fourth expression

In your own opinion, how does the problem in the middle relate to the problems on the side?

from the above first two expression

first value of each expression was combined to make 7x+54

second value of each expression was combined to make 13x+11

Hamburgers come in packs of 20, while buns come in packs of 12 what is the least number of packs you should buy in order to have the same numbers of hamburgers and buns?

Answers

the answer would be 3 packs of hamburgers and 5 packs of buns.



hope this helps!

Can anyone help me with my algebra homework please ?

Answers

Answer:

She will practice 2.5 for week four

Step-by-step explanation:

The table is going by 0.5 so I added 0.5 +2 =2.5

In comparing different job opportunities, you found that firm A will start your salary at
RM25000 per year and guarantee you a raise of RM1200 each year while firm B will start
your salary at RM28000 per year but will guarantee you a raise of RM900 each year.
(a) In what year of service the yearly salary from both firm will be the same?
(b) In what year of service the total salary from both firm will be the same?
(c) Hence, state the firm for which you should choose if you plan to work for 25 years.

Answers

Answer: the answer i think is c

Please help with this problem. Thanks.

Answers

Answer:

Acute, angle C = 13

Step-by-step explanation:

replace x with 9

multiply 12(9) = 108

subtract 108 -17 = 91

divide 91 by 7 = 13

[tex]m[/tex]∠[tex]C=13[/tex] so its acute

4a=23 Solve the equation. 4a=23 a=

Answers

Answer:

4a=23

4a/4 = 23/4

a=5.75

Step-by-step explanation:

One hundred four and twelve hundredths ___ One hundred four and two thousandths

Answers

Answer:

104.12 > 104.002

Step-by-step explanation:

16.56 divided by 0.08=

Answers

Answer:207

Step-by-step explanation:

Write the value of k for which the system of equations x+y-4=0 and 2x+ky-3=0 has no solution.
A. k=2
B. k=-2
C. k=1/2
D. k=-1/2


Do this.... Well it is easy.....


if you done this one I will ask question from physics


Thank You.... ✧༺♥༻✧

Answers

Answer:

c k=1\2......................

data was collected ​

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ok? what data?? i need context

Anyone ? And plz explain how

Answers

Answer:

Step-by-step explanation:

The formula for the area of a circle is A=πr²

r=6cm in this case

One rectangle is divided into 4 parts how much is one part

Answers

Obviously 1/4.
Thank you!

This question is unanswerable unless the answer is 1/4 rectangle.

It cost Mila $5.00 to send 125 text messages. What is the cost of sending text messages, in dollars per text?

Answers

Answer:

0.04 dollars per text

Step-by-step explanation:

5 dollars divided by 125 texts is equal to 0.04 dollars per text. SO just do 5/125 to get your answer

answer is 0.04 in text

At the beginning pf the week , naveen had 87 trading cards. On monday he gets 9 more on tuesday he foves 16 away on wensday he us given 3 by a friend on thrusday he sells all of his cards to a collecter the coolecter pays him arate of c for every card that naveen has. If naveen earns 124.50 from the sale what is c the rate that the collecter pays for each card

Answers

87 + 9 - 16 + 3= 83
124.50/83= 1.50 per card

Please help me! Find the sale price

Answers

Answer:

sale price is $104

Step-by-step explanation:

Given the equation in the problem S=P-0.20P:S = P - 0.20PS = (130.00) - (0.20 · 130.00)S = 130-26S = $104

Answer:

$104.00

Step-by-step explanation:

So we know that in the equation:

S = P - 0.20P

P is the original price and S is the sale price, which is also the original price reduced by 20%.

We are also given that the original price of a digital media player is $130.00.

We are asked to find the sales price of that digital media player. To do this, we can plug in $130.00 for P in the given equation, since it is the original price of the digital media player, and solve for S, the sales price:

S = 130 - (0.20)(130)

S = 130 - 26

S = 104

So now we found the sales price of the digital media player, which is $104.00.

I hope you find my answer helpful.

HELP! Due in 10 mins! Pls I rlly need this!!!

Answers

B, 12.6 because on the chart in the “f” column, next to -4.5 is 12.6

If (7^ 0)=1what are the possible values of x

Answers

Answer: 1

Explanation: anything to the power of 0 is 1 so if it is x to the power of 0 it would be 1

Answer: I would say that any number

Step-by-step explanation:

I think so because any number to the 0 power is going to be 1.

For example: 6^0=1 21^0=1

Hope it helped!! ;)

solve the equation
what does x equal to
46+x÷6−21=25+6

Answers

Answer:

×=36

Step-by-step explanation:

46+1/6X-21=31

25+1/6X=31

1/6X=31-25

1/6X=6

X=36

What part of 15 is 10?

Answers

Answer:

2/3

Step-by-step explanation:

10/15=2/3

The 10 is 2/3 part of 15 by dividing common factor that is 5.

What is simplest form ?

In mathematics, the simplest form is the fraction that has the smallest equivalent value.

Here, the given fraction is :

10/15 which when converting to smallest equivalent value by dividing common factor that is 5 :

10/15 = 2/3

Therefore, the 10 is 2/3 part of 15.

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(HELP ASAP) Maria records her distance from home over time. The values are shown in the table below. Find her average speed over the first 4 hours.

Answers

Answer:

Step-by-step explanation:

Average=total distance/totaltime

=60+110+180+220/1+2+3+4

=570/10

=57miles/hour

Determine the largest integer value of x in the solution of the following inequality. -5X - 9 > 13​

Answers

Answer:

X<-4.5

Step-by-step explanation:

firstly group like terms ,You divide both side by -5 and the answer was -4.5

Question 3 of 8
Which of the following are measurements for rectangles that are similar to a
rectangle with a width of 10 and a length of 20? Check all that apply.
A. 17 and 34
B. 2.5 and 6
O C. 15 and 30
0 D. 14 and 30
O E. 5 and 10

Answers

C and E are the corrects answers
C and E are the right answers.

PLEASE HELP FAST
The city council budgeted $536 to buy new garbage cans. If each garbage can costs $67, how
many garbage cans will the city be able to buy?
garbage cans
Submit

Answers

Answer:8 garbage cans

Step-by-step explanation:

The budget is $536 and each garbage can is $67 so you need to divide $536 by $67 and the answer is 8.

An ordinary 52-card deck is thoroughly shuffled. You are dealt four cards. (a) What is the probability that all four cards are sevens. (b) What is the probability that at least one of the cards is a seven. (c) What is the probability that none of them are seven. (d) What is the probability that two out the four cards is a seven

Answers

Answer:

a) The probability of getting a seven is 4/52

b) At least one of the cards is a seven=0.2813

c) The probability that none of them are seven=  0.7187

d) The probability that two out the four cards is a seven= 0.043

Step-by-step explanation:

A deck contains 52 cards containing 4 sets of 13 cards . Each set has a seven card in it. Thus there are 4 seven cards in a deck of 52 cards.

a) The probability of getting a seven is 4/52=0.0769

b) At least one of the cards is a seven=

1- P(no seven)

= 1- 4C0 * 48C4/ 52C4= 1- 0.7187= 0.2813

c) The probability that none of them are seven=4C0 * 48C4/ 52C4=  0.7187

d) The probability that two out the four cards is a seven= First card is seven * second Card is seven * two cards are not seven

= 4/52* 3/51*48/50= 0.0769*0.0588*0.96= 0.043

your cell phone plans costs$34.99 per month plus $0.11 for each text message you send or receive you have at most $40 to spend on your cell phone bill what is the maximum number of text messages that you can send or receive next month ?

Answers

The maximum number of text messages that you can send or receive next month Next month, you can send or receive up to 45.54 text messages in total.

What is maximum in mathematics?

In mathematics, a point at which a function's value is greatest. If the value is greater than or equal to all other function values, it is an absolute maximum. If it is merely greater than any nearby point, it is a relative, or local, maximum

Considering the information provided;

Given that the monthly expense is $34.99

and $0.11 for each text as well (sent or received)

Suppose y is the whole cost.

Set x as the quantity of text.

The test messages make up the difference between the cost of the plan and the $40 you must spend, which is represented by the equation

4034.99=5.01

in the model for the overall cost,

y=34.99+0.11x.

Count the number of messages you can send, you must divide.

5.01÷0.11

=45.54

The maximum number of messages is 45

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5 (-3.5) + 4 3/4 - 3.25 divided by -4

Answers

Answer:

4

Step-by-step explanation:

Find 60 percent of 199?

Answers

Answer: 79.60%, difference is 119.40

Step-by-step explanation:

Answer:

119.4

Step-by-step explanation:

199/100=1.99

1.99*60=119.4

if x=3 and y= 2 cm what is the perimeter of the plygon

Answers

Answer:

where is the image then i will comment the ansewr thanks

Step-by-step explanation:

Answer:

99

Hope this helps you guys!

6x4y 12xy2 6x5y3

What is the greatest common factor (GCF) of the monomials shown above?

Answers

Answer:

6xy

Step-by-step explanation:

GCF of the given monomials consists of 3 parts:

Constant coefficient = 6, 12, 6 ⇒ 6Variable x = degree 4, 1 and 5 ⇒ degree 1 Variable y = degree 1, 2 and 3 ⇒ degree 1

Combined all, the greatest common factor is 6xy

6x⁴y = 6xy * x³12xy² = 6xy * 2y 6x⁵y³ = 6xy* x⁴y²

is 5x-7+3x and 3x-7+5x equivalent

Answers

Answer:

yes

Step-by-step explanation:

5x-7+3x =8x-7

3x-7+5x=8x-7

Since both result are the same, hence the functions are equal

Given the functions 5x-7+3x and 3x-7+5x, we are to check if the functions are equal.

For the function

5x-7+3x

= 5x+ 3x - 7

= 8x - 7

For the function 3x - 7 + 5x

Collect the like terms

3x + 5x - 7

8x - 7

Since both results are the same, hence the functions are equal

Learn more here: https://brainly.com/question/11496139

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