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Gre4nikov [31]
2 years ago
14

Jeanne babysits for $7 per hour. She also works as a tutor for $9 per hour. She is only allowed to work 18 hours per week. She w

ants to make at least $65. Let x be the hours worked babysitting and let y be the hours worked tutoring. Model the scenario with a system of inequalities. Please show all work. Thanks <3
Mathematics
2 answers:
lutik1710 [3]2 years ago
8 0
7x + 9y > = 65
x + y < = 18
nata0808 [166]2 years ago
6 0

Answer: x+y\leq18 and 7x+9y\geq65


Step-by-step explanation:

Let x be the hours worked babysitting and let y be the hours worked tutoring.

As Jeanne babysits for $7 per hour. She also works as a tutor for $9 per hour.

Total hours she can work= 18 hours

Thus,  x+y\leq18

She wants to make at least $65.

It gives that 7x+9y\geq65

Thus, the system of inequalities are written as

x+y\leq18

7x+9y\geq65


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grin007 [14]

Answer:

the correct answer is 14

Step-by-step explanation:

6 0
2 years ago
Stabiliti daca marimile ale caror valori sunt trecute in tabelele urmatoare sunt direct proportionale.
kvv77 [185]

Vă rugăm să găsiți imaginea întrebării atașate mai jos:

Răspuns:

A este proporțională

B este proporțională

C nu este proporțional

D este proporțional

E nu este proporțională

F este proporțional

Explicație pas cu pas:

Pentru a determina proporționalitatea:

Obținem constanta proporționalității

Pentru valorile din tabelul 1;

Luând primul punct:

x = 1; y = 5

1 α 5

1 = 5k

k = 1/5

Test:

y = 15

x = k * y

x = 1/5 * 15; x = 3

Prin urmare; (a) este proporțională

B.)

x = 2; y = 6

2 α 6

2 = 6k

k = 2/6

k = 1/3

Test:

y = 15

x = k * y

x = 1/3 * 15; x = 5

Prin urmare; (b) este proporțională

C.)

x = 2; y = 6

7 α 3,5

7 = 3,5k

k = 7 / 3,5

k = 2

Test:

y = 5

x = 2 * 3.5

x = 7

Prin urmare; (c) nu este proporțională

x = 0,5; y = 1

0,5 α 1

0,5 = k

Test:

y = 4

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x = 0,5 * 4; x = 2

Prin urmare; (d) este proporțională

x = 0,2; y = 2

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k = 0,2 / 2

k = 0,1

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y = 4,5

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Prin urmare; (e) nu este proporțională

x = 1; y = 12

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Test:

y = 84

x = 1/12 * 84

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7 0
2 years ago
What property was used on 14k+2(3k+5)-5=10 to obtain 14k+6k+10-5=10
ohaa [14]
The difference between

i) <span>14k+2(3k+5)-5=10  and

ii)  </span><span>14k+6k+10-5=10

is the equality </span>2(3k+5)=6k+10


The property used here, can be described for any numbers a, b and c as:

a \cdot (b+c)=a \cdot b +a \cdot c


This is called the DISTRIBUTIVE PROPERTY 


Answer: DISTRIBUTIVE PROPERTY 
3 0
2 years ago
The two-way frequency table below shows the preferred communication method of employees at a company, based on years of employme
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Answer:

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Step-by-step explanation:

The proportion is the number of desired outcomes divided by the number of total outcomes.

The percentage is the proportion multiplied by 100.

In this question:

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0.3048*100 = 30.48%

The percentage of employees with 8 or more years at the company that reported that email is their preferred method of communication is 30.48%. I suppose there was a small typing mistake in option B.

3 0
2 years ago
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