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disa [49]
3 years ago
8

Need help on 22 a,b,c&d Need answers now! Help

Mathematics
1 answer:
devlian [24]3 years ago
8 0
22a) Matts' weekly fee is $7.50. We know this is by looking at the Y-axis. If he doesn't sell any books at the beginning of the week, his earnings are at -$7.50. We can assume that he pays that much for internet fee.

22b) Matt makes $1.50 for each book he sells. We know this because if you look at (5,0) and then the next one (6, 1.5), we see that his Y-value has increased by $1.50, which is equal to one book because 6 - 5 = 1 book.

22c) y = 1.5x - 7.5

22d) I'm going to assume that question means $30 in profit. Let's plug in the 30 in the equation. 30 = 1.5x - 7.5. Simplify.
Matt has to sell 25 books to make $30
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PLS HELP!!!!!!!!!!!!!
fgiga [73]

Answer:

7+1- -7

Step-by-step explanation:

i just guessed :)

3 0
3 years ago
Rectangle ABCD was dilated to create rectangle A'B'C'D. Triangle A B C D is dilated to form triangle A prime B prime C prime D.
Julli [10]

Answer:

AB = 6

Step-by-step explanation:

Given

BC = 3.8

A'B' = 15

B'C' = 9.5

Required

Determine the length of AB

Because A'B'C'D is a dilation of ABCD, then the following relationship must exist:

A'B' : AB = B'C' : BC

Substitute values for A'B', B'C' and BC

15 : AB = 9.5 : 3.8

Express the ratio as fractions:

\frac{AB}{15} = \frac{3.8}{9.5}

Multiply through by 14

15 * \frac{AB}{15} = \frac{3.8}{9.5} * 15

AB = \frac{3.8}{9.5} * 15

AB = \frac{3.8* 15}{9.5}

AB = \frac{57}{9.5}

AB = 6

8 0
3 years ago
Read 2 more answers
Why can two prime numbers only have one common factor?
Andreas93 [3]

A prime number has exactly two factors, 1 and itself. For example, 13 is a prime number because the only factors of 13 are 1 and 13. The number 8 is not prime because it has four factors: 1, 2, 4 and 8. The number 1 is not a prime number because it only has one factor (itself).

8 0
3 years ago
Five out of 35 books are red. write the ratio of red books to total books in THREE different forms.
Serga [27]

Answer:

1:7, 1/7, 1 to 7

Step-by-step explanation:

5/35 = 1/7

5 0
3 years ago
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Assume that the annual household expenditure on sugar is approximately normally distributed with a mean of $8.22 and a standard
irina1246 [14]

 To solve this problem, we will have to make use of the z statistic. The formula for the z score is given as:

z = (x – u) / s

where,

x is the sample value = more than $10.00

u is the sample mean = $8.22

s is the standard deviation = $1.10

 

Substituting the values into the equation to solve for z:

<span>z = (10 – 8.22)  / 1.10</span>

z = 1.78 / 1.10

z = 1.62

 

We then look for the p value using the standard distribution tables at the specified z score value = 1.62. Since this is a right tailed test, therefore the p value is:

p = 0.0526

or

p = 5.26%

 

<span>Therefore there is a 5.26% probability that a household spent more than $10.00</span>

5 0
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