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Triss [41]
3 years ago
7

Sofa pillows cost $26.80 each when the CPI is 159. In 1983, how many sofa pillows could you buy with $125? a. four b. six c. sev

en d. eight
Mathematics
2 answers:
Dvinal [7]3 years ago
8 0
C  Seven is the answer i just took the test 
Romashka [77]3 years ago
6 0

Answer:

7

Step-by-step explanation:

Present cost of sofa pillow= $26.80

CPI = 159

We are supposed to find how many sofa pillows could you buy with $125.

No. of pillows you can buy with $125 = \frac{125}{26.80} \times \frac{159}{100}

                                                              = 7.41

Hence you can buy 7 pillows of $125.

Thus Option C is correct.

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The sum of all three numbers is 12. The sum of twice the first number, 4 times the second number, and 5 times the third number i
grigory [225]

Answer:

The numbers are 7, 4 and 1

Step-by-step explanation:

Let the numbers =x, y, z.

The sum of all three numbers is 12, x+y+z=12--------i

The sum of twice the first number, 4 times the second number, and 5 times the third number is 35, 2x+4y+5z=35-------ii

The difference between 8 times the first number and the second number is 52, 8x-y=52---------iii

Now, from (i),z =1-x-y--------iv

substitute (iv) in (ii),

2x+4y+5(12-x-y)=35

2x+4y+60-5x-5y=35

collect like terms

-3x-y=-25

that is, 3x-y=25--------v

solving (iii) and (v) simultaneously (add iii and v), we have

11x=77

divide both sides by 11 to obtain x=7

Put x=7 in (v)

3(7)+y=25

21+y=25

implies y=25-21=4

put x=7 and y=4 in (iv)

z=12-7-4=1

Hence, the numbers are 7, 4 and 1.

5 0
3 years ago
(x+3)(x-5)-(4x+1)(1-4x)=17x^
Greeley [361]

Answer: \boxed{Sol=\{\dfrac{7}{4} \}}\\

I suppose 17x^ means 17x².

and that we must solve the equation.

Step-by-step explanation:

(x-3)(x-5)-(4x+1)(1-4x)=14x^2\\\\x^2-3x-5x+15+(4x+1)(4x-1)=17x^2\\\\x^2-8x+15+16x^2-1=17x^2\\\\-8x+14=0\\\\8x=14\\\\x=\dfrac{7}{4} \\\\\boxed{Sol=\{\dfrac{7}{4} \}}\\

6 0
3 years ago
Barney has to run some errands around town. Look at the map below to calculate his distance if he starts at home, goes to the vi
ad-work [718]

Answer:

28

Step-by-step explanation:

In this question, the units are just the number of boxes/grid-squares. So count how many boxes they have to walk between each step. You start at the top left location, and go around to all of them counting the boxes they pass.

they should all add up to 28 boxes, or 28 units!

3 0
3 years ago
Can someone please check my work :)
valina [46]

Answer:

You are incorrect the answer is 3 1/4

4 0
3 years ago
Read 2 more answers
Next, you will make a scatterplot. Name a point that will be on your scatterplot and describe what it represents.
klio [65]

The point (12, 190) means that the temperature after 12 hours is 190 degrees Celsius

<h3>How to make a scatter plot?</h3>

To do this, we make use of the following points

(12, 190), (14, 201), (15, 301), (16, 305), (18, 350), (20, 40), (25, 450)

Where x represents the number of hours and y represents temperature

See attachment for the scatter plot.

<h3>The description of a point</h3>

To do this, we make use of the point (12, 190)

This means that the temperature after 12 hours is 190 degrees Celsius

Read more about scatter plots at:

brainly.com/question/13984412

#SPJ1

8 0
2 years ago
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