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Igoryamba
2 years ago
12

7.

Mathematics
1 answer:
vodka [1.7K]2 years ago
4 0

Answer:

28 ft

Step-by-step explanation:

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Last question! Please show work. Really need to get this done in 1 hour
Sav [38]

Answer:

x=1; y=2; z=3

Step-by-step explanation:

Rearrange for convince:

2y-4z+6x = -2

-4y+2z-3x=-5

-6y+3z+4x=1

Now we take to pairs and eliminate the same var.:

2y-4z+6x = -2 *2

-4y+2z-3x=-5

and

-4y+2z-3x=-5 *-3

-6y+3z+4x=1. *2

We get:

4y-8z+12y=-4

-4y+2z-3x=-5

= -6z+9x=-9

and

12y-6x+9x=15

-12y+6x+8x=2

= 17x=17

We now know x = 1, so z is:

-6z+9=-9

-6z=-18

z=3

Let’s grab the first formula and find y:

6+2y-12=-2

6+2y=10

2y=4

y = 2

7 0
2 years ago
Find the area of the shaded region
zepelin [54]

Answer:

area of a circle πr^2

r = 10/2 r = 5

π5^2 = 78.5

area of the square length X width

7 x 7 = 49

78.5 - 49 = 29.5

shaded region = 29.5 square cm

3 0
3 years ago
Read 2 more answers
Estimate how many 1/3 pound boxes can be filled from a 5 3/4 lb bag of rice
Gnesinka [82]
The answer is 17 1/4 .Hope this helped.
4 0
3 years ago
Please help! It’s important!!
Vika [28.1K]

Answer:

option 3

Step-by-step explanation:

Since definition of slope is:

slope =  \frac{rise}{run}

the ratio:

\frac{bd}{da}  =  \frac{ce}{ea}

explains the best (Ratio option 3)

5 0
2 years ago
A wireless company offers two cell phone plans. For the month of September, Plan A charges $35 plus $0.25 per minute for calls.
valentina_108 [34]

Answer:

60 minutes

Step-by-step explanation:

Let the number of minutes be represented as x

For Plan A

Plan A charges $35 plus $0.25 per minute for calls.

$35 + $0.25 × x

35 + 0.25x

For Plan B

Plan B charges $20 plus $0.50 per minute for calls.

$20 + $0.50 × x

20 + 0.50x

For what number of minutes do both plans cost the same amount?

This is calculated by equating Plan A to Plan B

Plan A = Plan B

35 + 0.25x = 20 + 0.50x

Collect like terms

35 - 20 = 0.50x - 0.25x

15 = 0.25x

x = 15/0.25

x = 60 minutes.

Hence, the number of minutes that both plans cost the same amount is 60 minutes

7 0
2 years ago
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