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disa [49]
3 years ago
14

In the mail, you receive a coupon for $5 off for a pair of jeans, which is represented by the function j(x)=x−5. When you arrive

at the store, you find that all jeans are 25% off, which is represented by the function s(x)=0.75x. Which of the functions below represents how much you would pay for a pair of jeans, C(x)=s(j(x)) , if you use the coupon first followed by applying the discount from the store? (Do not consider tax.)
A.C(x)=0.75x−5
B.C(x)=0.75(x−5)
C.C(x)=0.75x−x−5
D.C(x)=x−5−0.75
Please answer as soon as possible! you don't need an explanation, I know how to do it but I'm having trouble finding answer
Mathematics
1 answer:
sergey [27]3 years ago
6 0

Answer: I’m pretty sure it’s C(x)=0.75(x-5) since it’s the same formula as the question

Step-by-step explanation:

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Question 3 (2 points)
inna [77]

Answer:

$19.50

Step-by-step explanation:

40% of $32.50 = $13.00

$32.50 - $13.00 = $19.50

Hope this helps!

7 0
3 years ago
la circunferencia de un jardín circular es de 116,18 pies ¿cual es el radio del jardín? use 3.14 para el π es urgente regalo cor
olchik [2.2K]

Answer:

ml ml ml ml ml

Step-by-step explanation:

ml ml ml ml MLシ︎

4 0
3 years ago
What is the inverse of the function f(x) = 2x + 1?
tiny-mole [99]

F(X) = 2x + 1

Replace f(x) with y:

Y = 2x+ 1

Switch variables:

X = 2y + 1

Solve for Y:

Subtract 1 from both sides:

X- 1 = 2y

Divide both sides by 2:

X-1 / 2 = y

Rewrite so y is in the left side:

Y = x-1 / 2

Replace y with f^-1(x):

F^-1(x) = x-1 / 2

This can also be written as x/2 - 1/2

8 0
3 years ago
A real estate builder wishes to determine how house size is influenced by family income, family size, and education of the head
OlgaM077 [116]

Answer:

see explaination

Step-by-step explanation:

1) Lets form the regression equation from the data results

Size = -1.633+ 0.4485*FamilyIncome + 4.2615*FamilySize - 0.6517*Education

-1.633+ 0.4485*40+ 4.2615*4 - 0.6517*13 =24.88

2) For the model to be reasonable, we must check the significant F stat from the anova table( see attachment)

From the table at attachment we can deduce; as the significant F is less 0.01 , we can safely conclude that the model is signifcant

3) all variables that have a p value less than 0.01 can be safely removed from the model as they do not contribute sigificantly from the model

so education can be removed from the model

8 0
4 years ago
Please help ill give brainliest
astra-53 [7]

Answer:

y = 7/8x + 1

Step-by-step explanation:

According to y = mx + b, whereas b is the y-intercept

so if b is positive, b has to be larger than 0

A non-proportional graph is a straight line that does not go through the origin so

The #1 and #4 are wrong because they are proportional

The #2 and #4 are wrong because they have negative y-intercept

3 0
2 years ago
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