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KiRa [710]
4 years ago
14

Questions 16 and 17 please (18 if you could ;p)

Mathematics
1 answer:
andrew-mc [135]4 years ago
5 0
16.  (x-5)(x+4) =  x^2-x-20
17.  2x>7  = x=3.5
18. -4
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HOW IS ADDING AND SUBTRACTING WITH MONEY LIKE ADDING AND SUBTRACTING WHOLE NUMBER?
dimaraw [331]

Because with money, it can be whole numbers . The only major difference is that money can have decimals.
6 0
3 years ago
Read 2 more answers
As a salesperson at Roaring Waves Beach Supplies, Carissa receives a monthly base pay plus commission on all that she sells. If
babymother [125]

y = her salary,
m = rate of commission,
x = amount of merchandise sold 
b = monthly base pay 

 sets of data to calculate the formula
(500, 405) and (900, 489)

use the slope formula to find m:
(489 - 405) / (900 - 500)
m= 84 / 400 = 0.21  (21% commission) 

find the base pay by substituting known values for x,y, and m, then solve for b: 
 405 = (0.21)(500) + b 
 405 = 105 + b
b = 300

now we know the equation for her salary is:
y = 0.21x + 300

To find the salary when she sells $1,700 worth of merchandise, put 1700 for x and solve for y:
y = 0.21(1700) + 300 = 657

8 0
3 years ago
Suppose SAT Writing scores are normally distributed with a mean of 498 and a standard deviation of 108. A university plans to aw
Katen [24]

Answer: 687

Step-by-step explanation:

normally distributed

μ = 498

σ = 108

Top 4%

P(X > a) = 0.04

P(Z > a-498/108) = 0.04

Using the table attached, for the top 4%:

0.50 - 0.04 = 0.46

a-498/108 = 1.75

a-498 = 189

a = 687

The minimum score for the scholarship is 687.

5 0
4 years ago
Find the volume of the figure.<br> A 1,053 M^3<br> B 2,106 M^3<br> C 513 M^3<br> D 58,5 M^3
vampirchik [111]
The answer is )A                                              
OK THANK YOU I HOPE THIS HOPED
7 0
3 years ago
The number of loaves of bread purchased and the total cost of the bread in dollars can be modeled by the equation c = 3.5b. Whic
Valentin [98]

Answer:

Loaves of bread: b can't be a negative value, then the first table doesn't include viable solutions.

The number of loaves of bread must be a whole number, then the second table doesn't include viable solutions.

c=3.5b

if b=0→c=3.5(0)→c=0

If b=3→c=3.5(3)→c=10.5

If b=6→c=3.5(6)→c=21

If b=9→c=3.5(9)→c=31.5

The third table includes viable solutions

4 0
3 years ago
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