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Lynna [10]
3 years ago
6

Solve: 12 + (-13) - 12 - 5 A: 14 B: -12 C: -18 D: 45

Mathematics
1 answer:
Drupady [299]3 years ago
6 0

Answer:

-18

(i think this is right, sorry if i'm wrong)

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rugs Emporium installs carpet for $80 plus $9.50 per square yard of carpet carpets 4 U charges $120 for installation and $7.50 p
mihalych1998 [28]

The area of the carpet must be <u>greater than 20 square yards</u> for which Rugs Emporium charges more than Carpets 4U.

<u><em>Explanation</em></u>

Suppose, the number of square yards of carpet is  x

Rugs Emporium charges $80 plus $9.50 per square yard of carpet. So, the total charge for x square yards of carpet = (80+9.50x) dollar

Carpets 4U charges $120 for installation and $7.50 per square yard of carpet. So the total charge for x square yards of carpet =(120+7.50x) dollar

If the Rugs Emporium charges more than Carpets 4U , then the inequality will be.....

80+9.50x>120+7.50x\\ \\ 9.50x-7.50x>120-80 \\ \\ 2x>40\\ \\ x>20

So, the area of the carpet must be greater than 20 square yards for which Rugs Emporium charges more than Carpets 4U.


5 0
3 years ago
Complete the given operation and write the expression in standard form.
Elodia [21]

Step-by-step explanation:

Using synthetic division of polynomials 3x⁴-2x²+4x+9÷x+2. Rewrite the dividend as 3x⁴+0x³-2x²+4x+9

2 | 3 0 -2 4 9

| 6 -12 20 -32

3 -6 10 -16 41

So the quotient is 3x³-6x²+10x-16 with a remainder of 41

Therefore, 3x³-6x²+10x-16+(41/x+2)

3 0
3 years ago
Andrew needs 995 tickets to get the prize he wants at the arcade. He already has 319 tickets and can earn 42 tickets each time h
hichkok12 [17]

Answer:

He has to play 17 times. Hope this Helps Have great day!

Step-by-step explanation:

i know this because 995-319=676 and 42x16=672 which is not enough so the answer would be 17

7 0
3 years ago
Solve the system x+5y=-15 -2x-10y=30
skelet666 [1.2K]
X= -2x -15y -45 maybe i’m kinda stupid
8 0
3 years ago
Read 2 more answers
The greater of two numbers is six more
pickupchik [31]

Answer:

 

Let's begin by writing the mathematical equations given by the sentences.

 

Let X = smaller number

Let Y = larger number

 

The first sentence tells us

X + Y = 38

 

The second sentence tells us

X = Y/3 + 6

 

Since you weren't given a specific method to use, you can use either the substitution method or the elimination(addition) method, whichever works best for you.

 

Since the 2nd equation has the X isolated, I'm going to isolate the X in the first equation,

X = 38 - Y

 

Since both equations are equal to X, I can set them equal to one another and solve for Y.

Y/3 + 6 = 38 - Y

 

Y + 18 = 114 - 3Y

4Y = 96

Y = 24

 

Then use either of the two original equations to solve for X

X + Y = 38

X + 24 = 38

X = 14

Step-by-step explanation:

PLS MAKE ME AS BRAINLIST

5 0
3 years ago
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