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Svetlanka [38]
3 years ago
12

Whats ,, 5x-2x-7y+8x+y= ???​

Mathematics
1 answer:
Effectus [21]3 years ago
7 0

Answer:

11x - 6y

<h2>Hope it helps you!!</h2>
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in the actual room, the distance between the front and back walls is 8 feet. what is the actual length of the front wall, in fee
Bogdan [553]

Answer:

8 feet

Step-by-step explanation:

it actually will be 8 feet

3 0
3 years ago
Which table represents a function? <br> PLS PLS HELP FAST
Dominik [7]

Answer:

4

Step-by-step explanation:

Inside a function, a certain unique input cannot ever have more than one output. All of the other tables have more than one output for only one input.

7 0
2 years ago
Read 2 more answers
A triangular bandana has an area of 78 square inches. The height of the triangle is 9
Vera_Pavlovna [14]
Area of a triangle = 1/2 × base × height

Plug in what we know.

78 = 1/2 × b × 9¾

Multilply each side by 2 to get rid of the 1/2...

156 = b × 9¾

Write 9¾ as an improper fraction.
(9¾ = 9 + 3/4 = (9×4)/4 + 3/4 = 36/4 + 3/4 = 39/4)

156 = b × 39/4

Multiply each side by 4...

624 = b × 39

Divide each side by 39...

16 = b

Done! The length of the base of the triangle is <u>16</u> inches.
5 0
3 years ago
Find the slope of y=7
Artist 52 [7]

Answer:

0

Step-by-step explanation:

According to the <em>Slope-Intercept</em><em> </em><em>Formula</em><em>,</em><em> </em>[y = mx + b], <em>m</em><em> </em>represents the <em>Rate of Change</em> [<em>Slope</em>]. Since we ONLY have the y-intercept of [0, 7], that makes the slope 0.

I am joyous to assist you anytime.

5 0
3 years ago
A chemical company makes two brands of antifreeze. The first brand is 65% pure antifreeze, and the second brand is 90% pure anti
Murrr4er [49]

With amounts measured in gallons, let

x = amount of 65% antifreeze

y = amount of 90% antifreeze

1 gal of the 65% brand contains 0.65 gal of pure antifreeze; x gal would contain 0.65x gal. Similarly, y gal of the 90% brand contains 0.90y gal of pure antifreeze.

To obtain 120 gal of 80% antifreeze solution (which contains 0.80•120 = 96 gal of pure antifreeze), we must have

x + y = 120 … … … … … [total volume of antifreeze solution]

0.65x + 0.90y = 96 … [total volume of pure antifreeze]

Solve the first equation for y :

y = 120 - x

Substitute this into the second equation and solve for x :

0.65x + 0.90 (120 - x) = 96

0.65x + 108 - 0.90x = 96

0.25x = 12

x = 48

Solve for y :

y = 120 - 48

y = 72

6 0
2 years ago
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