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exis [7]
3 years ago
11

A music store buys instruments and then sells them for 30% more than they paid.

Mathematics
1 answer:
IgorC [24]3 years ago
5 0
Bye doing the pemdas equation the at 3x + -5 you get the answer
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How can i get better at maths
ivann1987 [24]

by consentration at class and think maths is easy solve ur question and see u willl have what u need

8 0
3 years ago
HELP ME ASAP HELP ME ASAP HELP ME ASAP
Anon25 [30]

Answer:

First, plot the y-intercept. The y-intercept is 1, so plot the point (0,1).

Then go up 2 points and to the right 3 points and plot a point there. (3,3)

We go to the right because the slope is positive.

Draw a line through the two points.

Step-by-step explanation:

y = mx+b

m = slope

b = y-intercept

8 0
3 years ago
Could someone help me arrange these pairs of points in increasing order of the slopes of the lines joining them. (15, 30) and (2
Zina [86]

Answer:

(e) (27, 2) and (243, 18)

(g) (63, 9) and (84, 12)

(d) (45, 15) and (60, 20)

(c) (27, 12) and (72, 32)

(a) (15, 30) and (20, 40)

(b) (12, 32) and (18, 48)

(f) (18, 63) and (24, 84)

Step-by-step explanation:

Required

Arrange in increasing order of slope

Slope (m) is calculated using:

m = \frac{y_2 -y_1}{x_2 - x_1}

So, we have:

(a) (15, 30) and (20, 40)

m = \frac{40 -30}{20- 15}

m = \frac{10}{5}

m =2.00

(b) (12, 32) and (18, 48)

m = \frac{48 -32}{18- 12}

m = \frac{16}{6}

m = 2.67

(c) (27, 12) and (72, 32)

m = \frac{32-12}{72- 27}

m = \frac{20}{45}

m = 0.44

(d) (45, 15) and (60, 20)

m = \frac{20-15}{60- 45}

m = \frac{5}{15}

m = 0.33

(e) (27, 2) and (243, 18)

m = \frac{18-2}{243- 27}

m = \frac{16}{216}

m = 0.07

(f) (18, 63) and (24, 84)

m = \frac{84-63}{24- 18}

m = \frac{21}{6}

m = 3.50

(g) (63, 9) and (84, 12)

m = \frac{12 -9}{84- 63}

m = \frac{3}{21}

m = 0.14

From least to greatest slope, the pair of points are:

(e) (27, 2) and (243, 18)

(g) (63, 9) and (84, 12)

(d) (45, 15) and (60, 20)

(c) (27, 12) and (72, 32)

(a) (15, 30) and (20, 40)

(b) (12, 32) and (18, 48)

(f) (18, 63) and (24, 84)

6 0
3 years ago
I need big help, what are the step by step math problem and the answer to (18/-2)^2?
Serggg [28]

Hii :))

\tt \: ( \frac{18}{ - 2} ) ^{2}  \\   \tt \: =  (-  \frac{18}{2} ) ^{2}  \\  \tt =  \frac{-18 \times -18}{-2 \times -2}  \\  =    \tt  \frac{324}{4}  \\ = \boxed{\tt\:81}

﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋

\overbrace{ \underbrace{ \sf \: \infty  \:  Carry \: on \: Learning \:  \infty }}

ᴛʜᴇᴇxᴛʀᴀᴛᴇʀᴇꜱᴛʀɪᴀʟ

8 0
3 years ago
Read 2 more answers
Solve for d: d + 9 = 15 show work please
oksian1 [2.3K]

Answer:

6

Step-by-step explanation:

First, subtract 9 on both sides:

d+9-9=15-9

d=6

Hope this helped!

5 0
3 years ago
Read 2 more answers
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