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2 years ago

15

Solve The Equation, Check Your Answer 15=7x+1-5x

2 answers:

Morgarella [4.7K]2 years ago

5 0

15=7x+1-5x

Put like terms together. ( group anything alike)

15+1=16

7x-5x=2x

16 2x
—- ——-
2x 2x

2x/2x cancels itself out.

16 divided by 2 is 8

x=8

I hope this helped!

LUCKY_DIMON [66]2 years ago

5 0

15=7x+1-5x

Subtract 5x from 7x

15=2x+1

Subtract 1 from 15

14=2x

Divide 2 on both sides

Final Answer: x=7

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3 years ago

2. <br> Find m∠F.<br><br> a.30°<br><br> b.60°<br><br> c.15°<br><br> d.10°

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1 year ago

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lions [1.4K]

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2 years ago

Read 2 more answers

Match the real-world problem to its constant of proportionality.

irakobra [83]

Answer:

a. $18.36 for 3 pizzas : k = 6.12

b. $4.17 for 3 pounds of bananas . k = 1.39

c. $16.48 for 4 pounds of potatoes . k = 4.12

d. 2 cups of flour to make 24 cookie . k = 12

Step-by-step explanation:

PROPORTIONALITY:

Two quantities x and y are said to proportional to each other

if for x ∝ y , x = y k.

Here, k is called the PROPORTIONALITY CONSTANT.

⇒ $x \propto y \implies k = \frac{x}{y}$

Now, for the given quantities:

a. $18.36 for 3 pizzas [box]

Here, $k = \frac{x}{y} = \frac{18.36}{3} = 6.12$

So, the proportionality constant is 6.12.

b. $4.17 for 3 pounds of bananas [box]

Here, $k = \frac{x}{y} = \frac{4.17}{3} = 1.39$

So, the proportionality constant is 1.39.

c. $16.48 for 4 pounds of potatoes [box]

Here, $k = \frac{x}{y} = \frac{16.48}{4} = 4.12$

So, the proportionality constant is 4.12.

d. 2 cups of flour to make 24 cookies

Here, $k = \frac{x}{y} = \frac{24}{2} = 12$

So, the proportionality constant is 12.

7 0

2 years ago

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MA_775_DIABLO [31]

X+7-3=1 X+4=1 -4 -4 X=-3 Copy exactly how you see it

8 0

3 years ago