1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
svlad2 [7]
3 years ago
13

It’s number 5 please help

Mathematics
1 answer:
Oksanka [162]3 years ago
6 0
8x+100 with x representing the number of classes attended. For Ms.Wiggins, the equation would be 8(18)+100. You would multiple 8 x 18 getting 144+100. You add 144+100 to get $244 for Ms.Wiggins.
You might be interested in
X<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B3%7D%20%20-%2012%20%3D%20%20-%202" id="TexFormula1" title=" \frac{x}{
gulaghasi [49]
Wish fb ee snsjsjwbw e Bush’s use Brisbane Meeks
6 0
3 years ago
Three sixth-grade students competed in the 100-meter dash. The table shows their times.
Sergeeva-Olga [200]

Answer:

It is 12.9, 13.1, 13.2 C.

Step-by-step explanation:

5 0
3 years ago
WORTH 20 POINTS PLEASE HELP
Dmitriy789 [7]
The answer is d its decreasing
8 0
3 years ago
Initially, there are 40 grams of A and 50 grams of B, and for each gram of B, 2 grams of A is used. It is observed that 15 grams
hram777 [196]

Answer:

X(16)=25.71grams

Step-by-step explanation:

let X(t) denote grams of C formed in  t mins.

For X grams of C we have:

\frac{2}{3}Xg of A and \frac{1}{3}Xg of B

Amounts of A,B remaining at any given time is expressed as:

40-\frac{2}{3}Xg of A and  50-\frac{1}{3}Xg  of B

Rate at which C is formed satisfies:

\frac{dX}{dt} \infty(40-\frac{2}{3}X)(50-\frac{1}{3}X)->\frac{dX}{dt}=k(90-X)\\\therefore \frac{dX}{(90-X)^2}=kdt->\int{\frac{dX}{(90-X)^2}} \, =\int {k} \, dt  \\\therefore \frac{1}{90-X}=kt+c->90-X=\frac{1}{kt+c}\\\\X(t)=90-\frac{1}{kt+c}

Apply the initial condition,X(0)=0 ,to the expression above

0=90-\frac{1}{c} \ \ ->c=\frac{1}{90}\\\therefore\\X(t)=90-\frac{1}{kt+\frac{1}{90}} \ \ ->X(t)=90-\frac{90}{90kt+c}

Now at X(8)=15:

15=90-\frac{90}{90\times 8k+1}  \ ->75=\frac{90}{720k+1}\\k=0.0002778

Substitute  in X(t) to get

X(t)=90-\frac{90}{0.0002778t\times 90+1}\\X(t)=90-\frac{90}{0.25t+1}\\But \ t=16\\\therefore X(t)=90-\frac{90}{0.025\times16+1}\\X(t)=25.71

5 0
3 years ago
Davies knows that the area of his square-shaped bag is 81 feet^2. what is the length of any side of the bag?
11Alexandr11 [23.1K]
If it's a square all sides are 9 feet...9x9=81
8 0
3 years ago
Other questions:
  • Purse A which contains $1,000 today. If you leave it alone, it will contain $1,200 tomorrow (by magic). The next day, it will ha
    5·1 answer
  • 27/36 in simplest form
    5·1 answer
  • Draw a model... write an equation and solve....this is the directions for a  4th grade math homework problem....Help?????
    8·1 answer
  • Triangle EFG is an isosceles triangle with EG=EF. What is the approximate length of EF, and what is the approximate perimeter of
    15·2 answers
  • What is the area of a circle with a radius of 22 feet? Use \piπ= 3.14 and round your answer to the nearest tenth.
    15·2 answers
  • What are the numbers in the smallest group of repeating digits when 41/11 is converted to a nonterminating decimal?
    6·2 answers
  • ΔABC has coordinates of A (–5, –7), B (6, –3), and C (2, 7). Find the coordinates of its image after a dilation centered at the
    14·1 answer
  • -3.5y - 6.2y = - 87.3
    10·1 answer
  • What is the equation in standard form of
    8·1 answer
  • If a jacket cost 89.99 and has a 30% discount and then I have an additional 35% off how do I solve this"? The equation set up
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!