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
RUDIKE [14]
3 years ago
9

Christi gives multiple demonstrations for two different cooking techniques each day at a local grocery store. The amount she ear

ns for her seafood demos is given by f(x) = 85x - 21 where x represents the number of days. The amount she earns for her cake decorating demos is given by g(x) = 120x - 35.
Which function best represents, h, the total amount Christi earns after x days?

A.
h(x) = 205x - 56
B.
h(x) = 35x - 14
C.
h(x) = (85x - 21)(120x - 35)
D.
h(x) = 205x + 14
Mathematics
1 answer:
Helga [31]3 years ago
5 0

Answer:  A.  h(x) = 205x - 56

Step-by-step explanation:

Since, According to the question,

The amount she earns for her seafood demos is given by f(x) = 85x - 21 where x represents the number of days.

And,  The amount she earns for her cake decorating demos is given by g(x) = 120x - 35.

Therefore if h(x) represents total amount she earns in x days.

Then h(x)= f(x)+g(x)=85 x - 21 + 120 x - 35=205 x-56

⇒h(x)=205 x-56

Thus, Option A is correct.

You might be interested in
F(x)=-9x^2-2x and g(x)=-3x^2+6x-9, find (f-g)(x) and (f-g)(-4)
Alona [7]

Answer:

(f - g)(x)= - 6 {x}^{2} - 8x + 9

(f - g)(-4!)= - 55

Step-by-step explanation:

f(x) =  - 9 {x}^{2}  - 2x,  \:  \: g(x) =  - 3 {x}^{2}  + 6x - 9 \\ (f - g)(x) = f(x)  - g(x) \\  = - 9 {x}^{2}  - 2x - (- 3 {x}^{2}  + 6x - 9) \\  =  - 9 {x}^{2}  - 2x  + 3 {x}^{2}   -  6x  +  9 \\    \purple{ \boxed{ \bold{(f - g)(x)= - 6 {x}^{2}  - 8x + 9}}} \\ (f - g)( - 4)= - 6 {( -4 )}^{2}  - 8( - 4) + 9 \\  =  - 6 \times 16 + 32 + 9 \\  =  - 96 + 41 \\ \red{ \boxed{ \bold{(f - g)( - 4)= - 55}}}

6 0
3 years ago
Parallel to y - 2x = 4 and passes through (0,5)
wolverine [178]

Answer:

y=2x+5

Step-by-step explanation:

y=2x+4 means that the slope is m1=2

A parallel line shall have the same slope so

m2=m1=2

Therefore, the equation of the new line will be

y=2x+q

where q is the y-intercept, that is 5 because the line must pass in (0,5), so

q=5

and

y=2x+5

4 0
2 years ago
Dana bikes 10 mi in 50 min.<br> <br> <br> <br> At this rate, how far can she bike in 90 min?
lara31 [8.8K]
The answer will be 18 miles
8 0
3 years ago
Read 2 more answers
20 points to help with this
Vikentia [17]

Answer:

Help what?

Step-by-step explanation:

6 0
2 years ago
Several high schools participated in a study to evaluate the effectiveness of a new computer-based math curriculum. In all these
tensa zangetsu [6.8K]

Step-by-step explanation:

a

the study is experimental as we do not just observe students performance. 2 techniques were also randomly assigned. there is control over teaching techniques and performance is also observed.

b.

these are the 3 factors: high school, instructions type, scores.

high school has 2 levels. level 1, is 3 high school. level 2: each high school has 4 sections and these 4 have 24 students.

instructions type: 1 level divided into standard and computer based.

scores: 0 ( no level)

c.

high school has between subject combination since there are 3 schools and 4 sections.

instructions type has between too. since there are two different types.

we have 24 students in each section which are within subjects.

d.

score on test is dependent variable

e.

student is basic experimental unit.

4 0
3 years ago
Other questions:
  • Tricia drove 102 miles on three gallons of gas. How far can she drive on seven gallons of gas?
    9·1 answer
  • The two lines intersected by the transversal are barrel. What is the value of x?
    11·1 answer
  • Answer it answer it answer it
    7·2 answers
  • A grocery store recently sold 12 cartons of yogurt, of which 2 were peach. if the store sells 18 cartons of yogurt tommorrow, pr
    14·1 answer
  • 3 inches equals how many yards?
    14·2 answers
  • Find the mean of 8, 6, 2, 4 graphically.​
    7·1 answer
  • PLEASE HELP! WILL MARK BRAINLIEST!
    11·1 answer
  • 3 1/4 - 1 3/8 (please help)
    14·2 answers
  • Find the general term of {a_n}
    9·1 answer
  • Use the image below to answer the following question. Find the value of sin x° and cos y°. What relationship do the ratios of si
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!