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
kherson [118]
3 years ago
8

Can someone help me whit this pls

Mathematics
1 answer:
UNO [17]3 years ago
7 0
I just need to answer some questions lol
You might be interested in
A motel clerk counts his​ $1 and​ $10 bills at the end of the day. He finds that he has a total of 55 bills having a combined mo
vfiekz [6]

Answer

39 bills of 1$

16 bills of 10$

Step-by-step explanation:

x-nr of $1

y-nr of $10

x*1+y*10=199

x+y=55 , x=55-y

so  I use the substitution method

(55-y)*1+10y=199

55+10y-y=199

-55            -55

9y=144

y=144/9

y=16

so x=55-16

     x=39

verify 16*10+39*1=160+39=199

4 0
3 years ago
Read 2 more answers
What is -5x=-2y for slope-intercept form of the equation
julsineya [31]

Answer:

y=(5/2)x

Step-by-step explanation:

Math

7 0
3 years ago
Solve this quadratic equation<br><img src="https://tex.z-dn.net/?f=3a%20%7B%7D%5E%7B2%7D%20-%204%20%2B%201" id="TexFormula1" tit
ivann1987 [24]

Answer:

1 and 1/3

Step-by-step explanation:

3a² -4a +1 = 0

3a²- 3a - a+ 1= 0

3a(a-1) - (a-1)= 0

(a-1)(3a -1)= 0

a-1= 0 ⇒ a= 1

3a - 1= 0 ⇒ 3a= 1 ⇒ a= 1/3

5 0
2 years ago
At the moment a hot cake is put in a cooler, the difference between the cake's and the cooler's temperature is 50° Celsius. This
dybincka [34]

Answer:

D(t)=50(0.8)^t

Step-by-step explanation:

We are given that

Initially the difference between the cake's and the cooler's temperature ,a=50 degree Celsius

r=\frac{1}{5}/min

We have to find the function that gives the temperature difference in degrees Celsius D(t).

We know that

D(t)=a(1-r)^t

Substitute the values

D(t)=50(1-\frac{1}{5})^t=50(1-0.2)^t

D(t)=50(0.8)^t

This is required function that gives the temperature difference in degrees Celsius.

6 0
3 years ago
Read 2 more answers
Use GeoGebra to explore the properties of rotations and complete each step belov
meriva

Answer:

This is the sample answer for edmentum.

5 0
3 years ago
Other questions:
  • Find the quotation -10/-5= need help ASAP
    10·2 answers
  • patty bought a shirt for $14.50 plus9% tax. ales bought a sweater for $22.95 plus 9% write the sum in dollars that patty and ale
    11·1 answer
  • Can someone please give me the formula to solve this kind of problem?
    12·1 answer
  • Inequalities sentence: A number w minus 9 is less than or equal to 12
    6·1 answer
  • A six sided die and a standard nickel are tossed. What is the probability that the number of dots on the upper face of the die i
    8·1 answer
  • Factorise this pleasee <br><br> x2 + 4x -45
    6·1 answer
  • Are they all right? If not please tell me what the answers are. Thanks! (Math)​
    12·2 answers
  • Need explanation and answer
    14·2 answers
  • If you are told that opposite sides of this quadrilateral are parallel and that the measure of angle A is 105°, can you tell the
    6·1 answer
  • What is the degree form for 3n/4 radians?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!