All categories

4 years ago

You paid $700 for a new guitar. Your guitar cost $20 less than twice the cost of your friend's guitar.

Mathematics

2 answers:

lapo4ka [179]4 years ago

4 0

Answer: i get $340

Step-by-step explanation:

700-20= 680

680÷2= 340

Another way to look at it is :

Let p =friends guitar

2p= twice

2p+20=700

2p=700-20

2p=680

P= 680÷2

P=340 is friends guitar

dedylja [7]4 years ago

4 0

Your friends guitar would have costed $1380

You might be interested in

In the pictures down below Can anyone help? Fractions and percents

wariber [46]

1st Picture:
$3)- \frac{6}{7} +\frac {10}{11}
\\\\LCD:77
\\\\\frac{6}{7}* \frac{11}{11} + \frac{10}{11}*\frac{7}{7}= \frac{66}{77} + \frac{70}{77} = \frac{136}{77} = 1\frac{59}{77} 
 \\ \\ 4) 3\frac{6}{7}* 2 \frac{1}{10}= \frac{27}{7} * \frac{21}{10} = \frac{567}{70} =\frac{81}{10} = 8\frac{1}{10}
\\\\5)2\frac{1}{2}+3\frac{1}{3}
\\\\LCD: 6
\\\\ 2\frac{3}{6} + 3\frac{2}{6} =5\frac{5}{6}
\\\\6)5\frac{1}{8}*-6\frac{6}{11}=\frac{41}{8}* \frac{72}{11}=\frac{2952}{88}=\frac{369}{11}=33\frac{6}{11}$

2nd Picture:

$1)80 percent of 80 = .8*80 =64
\\\boxed{64}
\\\\2)95percent of 100=.95*100=95
\\\boxed{95}$

7 0

3 years ago

Mhanifa please help! Look at the picture attached!!!

inessss [21]

Answer:

(17)

Sum of interior angles of a quadrilateral is 360°

110° + 130° + x + x - 3° = 360°
2x = 360° - 237°
2x = 123°
x = 61.5°

(18)

Sum of interior angles of a hexagon is 180°*(6 - 2) = 720°

2*90° + 2x + 2(x + 22°) = 720°
90° + x + x + 22° = 360°
2x = 360° - 112°
2x = 248°
x = 124°

(19)

Interior angles of a given pentagon are all marked as congruent, so the exterior angles are congruent too.

Sum of exterior angles is 360°.

x = 360°/5
x = 72°

8 0

3 years ago

Six friends share a 15-ounce bag of nuts equally between what two whole numbers of ounces will each person get?

Novosadov [1.4K]

Each person will get about 2.5 ounces.

6 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=2%20%5Ctimes%203%20%2B%2045%20%5Cdiv%202%20-%206%20%2B%209" id="TexFormula1" title="2 \times 3

blagie [28]

Answer: 31.5

Concept:

When encounter questions that ask for operation on algebraic expressions, using BODMAS or PEMDAS method would be easier. Since this question asked for using BODMAS, then it is:

Bracket
Order
Division
Multiplication
Addition
Subtraction

Solve:

Given

2 × 3 + 45 ÷ 2 - 6 + 9

Simplify by division

=2 × 3 + 22.5 - 6 + 9

Simplify by multiplication

=6 + 22.5 - 6 + 9

Simplify by addition

=28.5 + 9 - 6

=37.5 - 6

Simplify by subtraction

=31.5

Hope this helps!! :)

Please let me know if you have any questions

5 0

3 years ago

Read 2 more answers

Someone please help me!!

Fynjy0 [20]

It would be y=x-12!

Hope this helps!

4 0

3 years ago