3 years ago

20 POINTS FOR THIS!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

Sloan [31]3 years ago

7 0

Answer:

b = 13

Step-by-step explanation:

the value of the discount is a constant, while the total cost of the books is a variable because it depends of the purchase

We can write this equation

5b - 7 = 58

Solve it

1) add 7 at both members

5b -7 + 7 = 58 + 7

5b = 65

2) divide both membera by 5

b = 13

LenaWriter [7]3 years ago

4 0

B=13 add 7 to both numbers then divide by 5

You might be interested in

Chips Ahoy wants to perform a study to determine the number of chocolate chips in their cookies. To that end, they collected a s

Dahasolnce [82]

The formula for the confidence interval is given by

Sample mean + z*[σ/√n], and
Sample mean - z*[σ/√n]

We have:
Sample mean = 23.95
n = 40
σ = 2.55
z* for 99% confidence = 2.58

Substitute these values into the formula, we have

23.95 + (2.58)(2.55÷√40) = 24.99
23.95 - (2.58)(2.55÷√40) = 22.91

So the lower interval is 22.91 and the highest interval is 24.99

5 0

3 years ago

If a yeti cooler is reRegularly priced for $349 but is being discounted by 15% how much money will you say if you buy it on sale

Lilit [14]

349*.15=52.35
you save 52.35

6 0

3 years ago

Read 2 more answers

Please help:

8_murik_8 [283]

7 7/9 clergs.
wergs= w
nergs= n
clergs= c

3w= 4n, so 5w= 6 2/3n
Since 6n=7c, then 6 2/3n= 7 7/9n

Hope that answered your question!!

5 0

3 years ago

Find the x-coordinate of the vertex, y-coordinate of the vertex, and the x-intercepts.

galina1969 [7]

Answer:

X=-1

Y=-9

Step-by-step explanation:

x^2+2x-8

x^2+2x +1 =8+1

(x+1)-9

3 0

3 years ago

Help with question below

Ludmilka [50]

The line is leaning to the left, so the slope is negative, eliminate A and D
when x is 3, y is -2, so C is the correct answer

4 0

3 years ago