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3 years ago

Please help meeeeeeeeeee

Mathematics

1 answer:

xxTIMURxx [149]3 years ago

3 0

A straight line is 180 degrees so the two angles together must equal 180. 180-54=126

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Amy and Dan are pastry chefs. Amy charges $25 for each order, and $15 per hour. Dan charges $10 for each order, and $20 per hour

skelet666 [1.2K]

Answer:

3 hours

Step-by-step explanation:

let x = # of hours

Amy: y = 25 + 15x

Dan: y = 10 + 20x

Set the expressions equal to each other and solve for x

10 + 20x = 25 + 15x

20x = 15 + 15x

5x = 15

x = 3

7 0

4 years ago

Two possible solutions of √11-2x=√x^2+4x+4 are –7 and 1. Which statement is true? A) Only x = –7 is an extraneous solution.

11111nata11111 [884]

Answer:

Option D)Neither solution is extraneous.

Step-by-step explanation:

we have

$\sqrt{11-2x}=\sqrt{x^{2}+4x+4}$

we know that

two possible solutions are x=-7 and x=1

<u><em>Verify each solution</em></u>

Substitute each value of x in the expression above and interpret the results

1) For x=-7

$\sqrt{11-2(-7)}=\sqrt{-7^{2}+4(-7)+4}$

$\sqrt{25}=\sqrt{25}$

$5=5$ ----> is true

therefore

x=-7 is not a an extraneous solution

2) For x=1

$\sqrt{11-2(1)}=\sqrt{1^{2}+4(1)+4}$

$\sqrt{9}=\sqrt{9}$

$3=3$ ----> is true

therefore

x=1 is not a an extraneous solution

therefore

Neither solution is extraneous

7 0

3 years ago

Read 2 more answers

Writing to explain what are compatible numbers? What compatible numbers would you pick to estimate the diferrent of 777-248? Why

Sphinxa [80]

Compatible numbers are rounded numbers. the compatible number for 777 is 800 , and the compatible number for 248 is 200 because I rounded to the nearest hundreds place

I hope I helped you!!!!<3

8 0

3 years ago

Find the quotient (25c^4+20c^3) 5c

Black_prince [1.1K]

Find the quotient: (25c^4 + 20c^3) ÷ 5c5c^3+4c^2.

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=%20-%2030%20%3D%202%28x%20-%2097%29" id="TexFormula1" title=" - 30 = 2(x - 97)" alt=" - 30 = 2

Korolek [52]

Hey there!

In order to find out the answer to this question, we can distribute

$-30 = 2(x - 97) \\ \\ \\ 2(x) = 2x \\ \\ 2(97) = 197$

Flip your problem around!

$2x - 194 = -30$

Add by $194$ on each of your sides

Like: $2x - 194 + 194 \\ \\ \\ -30 + 194$

Cancel out: $-194 + 194$ because they would give you the outcome of $0$

Keep: $-30 + 194 [/tex] because that'll give you: [tex]164$

Your problem becomes: $2x = 164$

Now, we have to divide by $2$ on each of the sides

Like: $\frac{2x}{2} = \frac{164}{2}$

Cancel: $\frac{2x}{2}$ because it will give you a outcome of $1$

Keep: $\frac{164}{2}$ because this will give you your answer

$Answer: x = 82$

Good luck on your assignment and enjoy your day!

~ $LoveYourselfFirst:)$

7 0

3 years ago