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Marta_Voda [28]
3 years ago
11

Lena needs $50 to buy some notebooks. She had saved $2 and plans to work as a babysitter to earn $8 per hour. Which inequality s

hows the minimum number of hours, n, that Lena should work as a babysitter to earn enough to buy the notebooks?
2 + 8n ≤ 50, so n ≤ 6

8n ≤ 50 + 2, so n ≤ 6.5

8n ≥ 50 + 2, so n ≥ 6.5

2 + 8n ≥ 50, so n ≥ 6


Anyway I bored too......
Mathematics
1 answer:
defon3 years ago
3 0

Answer: the first equation

Step-by-step explanation:

Also I’m Tim

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A line's y-intercept is -10, and its slope is 1. What is its equation in slope-intercept form?
ratelena [41]

Answer:

y=1x-10

Step-by-step explanation:

y=mx+b

m(slope) = 1

b(y-intercept) = -10

y=1x-10

✨Hope this helps✨

5 0
2 years ago
What is 2+2 GUYS I REALLY NEED HELP MY KINDERGARDEN TEACHER IS COMING!!!!!
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What is the value of a?
kaheart [24]

Answer:

a=\dfrac{16}{3}\ un.

Step-by-step explanation:

In right triangle XZW, the height WY is the geometric mean of segments ZY and XY.

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7 0
3 years ago
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Why is the answer B?
Radda [10]

Remark

Whatever the original price, he gets 70% in the first instance.

He gets 80% in the second instance.

He gets 90% in the third instance

His total income is 240 dollars.

Let the original price be x

Equation

70%x + 80%x +90%x = 240

70% = 0.7 ; 80% = 0.8 ;90% = 0.9

Solution

0.7x + 0.8x + 0.9x = 240 Take out x as a common factor and add the decimals.

x (0.7 + 0.8 + 0.9) = 240

2.4x = 240 Divide both sides by 2.4

x = 240/2.4

x = 100

So the watches should have brought in 3*100 = 300 dollars.

He only brought in 240 dollars.

He lost 300 - 240 = 60 dollars.

The answer is B.

7 0
2 years ago
Which possibly forms a triangle
svp [43]

Answer:

C. 17, 12, 7

Step-by-step explanation:

In a triangle, the sum of the lengths of any two sides must be greater then the length of the third side. If you can show any two segments, the sum of whose lengths is less than the length of the third segment, that cannot form a triangle.

In choices A, B, and D, there is at least one sum of the lengths of two segments that is less then the length of the third segment. That shows that choices A, B, and D cannot form triangles.

A. 8 + 7 = 15 < 16 No

B. 9 + 7 = 16 = 16 No

D. 11 + 5 = 16 < 17 No

C.

17 + 12 = 29 > 7

12 + 7 = 19 > 17

17 + 7 = 24 > 12

Yes

6 0
3 years ago
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