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Nuetrik [128]
4 years ago
6

Help please ASAP I’m not good at this

Mathematics
1 answer:
stepladder [879]4 years ago
5 0

Answer:

y = 0.7x + 12

Step-by-step explanation:

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Let x=number of cds and y=number of dvds
Elis [28]
X + y = 40.....multiply by -4
4x + 6y = 180
-------------------
-4x - 4y = -160 (result of multiplying by -4)
4x + 6y = 180
------------------add
2y = 20
y = 20/2
y = 10 <===

x = 30

6 0
3 years ago
Kendra made a bar graph showing the number of hours she spent doing homework for different school subjects last month. How many
VARVARA [1.3K]

Answer: 54

Step-by-step explanation: Step 1 i checked how many each one has and multiplied it by all of the numbers there were there by using a plus the hours are 54

3 0
3 years ago
Lucy made $323 for 17 hours of work.
saveliy_v [14]
19 minutes I think just divide 323 and 17
3 0
3 years ago
Help, will give brainlist!!
Licemer1 [7]

Answer:

<u>Fred.</u>

Started hang gliding at a height of 700 ft and descends 15 feet every seconds

<u>Gene</u>

Started hang gliding at a height of 575 ft and descends 10 feet every seconds

Step-by-step explanation:

The function that models Fred's hang gliding is f(x)=-15x+700

The initial value is 700 feet. This Fred was 700 feet above see level before he starts descending.

The rate of descent is -15 ft/s. This means Fred descends 15 feet in one second.

From the table the initial height is 575 ft. This means Gene was 575 feet above sea-level at the beginning of the hang gliding.

The rate of descent is \frac{565-575}{1-0} =-10 ft/s.

This means that in every seconds, Gene descends 10 feet.

4 0
3 years ago
The average time between infection with the AIDS virus and developing AIDS has been estimated to be 8 years with a standard devi
Dahasolnce [82]

Answer:

1/40

Step-by-step explanation:

3 0
2 years ago
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