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svetlana [45]
3 years ago
13

How do I solve 3x-y=15

Mathematics
1 answer:
Mariana [72]3 years ago
4 0
Okay, 3x just means 3•x. so 3•x-y=15. you would have to have what x and y both mean to get the correct answer. but if they just need it simplified than your answer would be 3•x-y=15
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6. A coupon offers $1.00 off the 16-ounce size. Which size is the better<br><br> buy then?
svlad2 [7]

Answer:

Both sizes are better because they cost Same.

Step-by-step explanation:

Consider the provided information.

A coupon offers $1.00 off the 16

            Quantity     Price

Pint           16           $3.98

Quart        32           $5.98

If he gets $1 off for the 16-ounce size. The price will be:

3.98-1=2.98

He needs to pay $2.98 for 16-ounce pint.

Now find which one is better by calculating the unit rate.

\frac{Cost}{weight}=\frac{2.98 }{16}\approx0.186

Therefore, the cost of 1lb would be $0.186

For Quart 32 find the unit rate as shown:

\frac{Cost}{weight}=\frac{5.98}{32}\approx0.186

Therefore, the cost of 1lb would be $0.186

Hence, both of the size are better as the unit rate is same.

4 0
3 years ago
Find the percent decrease.Round to the nearest percent. From 97 to 75
damaskus [11]

Answer:

Step-by-step explanation:

Decrease = 97 - 75 = 22

Percentage of decrease=

=\frac{22}{97}*100

= 22.68

= 23%

4 0
3 years ago
Find the area of the figure shown below and type your result in the empty box.<br><br><br>​
lianna [129]

Answer:

did u forget to add the actual question

Step-by-step explanation:

5 0
2 years ago
How many solutions ? ( 1 solution , no solution , infinite solutions ) I WILL MAKE U BRAINLIST NEED ASAP
tangare [24]

Answer:

#4 = ∞

#5= no solution

#6= no solution  

Step-by-step explanation:

GOOD LUCK!!!!

4 0
2 years ago
Reflect the arrow over the line y = -x Pic of explanation below
Sonja [21]

The first step is to locate the coordinates of the vertices of the arrow. From the graph,

A = (2, 1)

B = (2, 3)

C = (1, 3)

D = (3, 5)

E = (5, 3)

F = (4, 3)

G = (4, 1)

If (a, b) is reflected on the line y = - x, the coordinates of the image is (- b, - a)

By applying this rule, the new coordinates after reflecting the arrow over the line y = - x are

A'(- 1, - 2)

B'(- 3, - 2)

C'(- 3, - 1)

D'(- 5, - 3)

E'(- 3, - 5)

F'(- 3, - 4)

G(- 1, - 4)

4 0
1 year ago
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