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Elina [12.6K]
4 years ago
9

HELP FOR 10 POINTS!!!

Mathematics
1 answer:
Kay [80]4 years ago
6 0
20×8=160
5×8=40
10×8=80
4×8=32
15×8=120

160+40+80+120+32=432
432×2=864
864 is the answer,so your answer is b
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I need help on 5-7. Its a little confusing for me
Len [333]

Answer:

5. x = 5, y = 3

6. x = 0, y = 4

7. x = -1, y = 1

Step-by-step explanation:

5. substitute 3(value of y) into the equation y = x - 2:

=> 3 = x - 2

=> x = 5

6. substitute 0(value of x) into the equation y = x + 4:

=> y = 0 + 4

=> y = 4

7. substitute 1(value of y) into the equation y = 2x + 3:

=> 1 = 2x + 3

=> 2x = -2

=> x = -1

8 0
3 years ago
Pleaseeeeee helppppppppppp
nikitadnepr [17]
Ok so we have the first portion. We need to do cross multiplication first. So that would be 20(2x - 9) and 10(9)

So
20(2x - 9)=90
40x - 180=90
Then add 180 to itself then to 90
40x=270
X=6.75

Now let’s set the next one up knowing what we know from the previous one.

18(3x + 4)= 12(15)
54x + 72=180
Subtract 72 from it’s self and 180
54x=108
X=2
4 0
3 years ago
Plz Help ASAP! TYSM! Plz Show Ur Work!
Dmitry_Shevchenko [17]

1. Add 5 to both sides. So x=5. That is a vertical line. The answer is undefined

2. 25- 5 7/8 + 6 1/2

Denominators have to be the same

Multiply 1/2 by 4/4

25-5 7/8 + 6 4/8

25 - 11 11/8

23 16/8- 11 11/8

12 5/8

4 0
3 years ago
Can you figure out if the slopes are parallel, perpendicular or neither and type the correct code?
8090 [49]

Answer:

What slopes there are none. I will edit after you put it.

Step-by-step explanation:

7 0
3 years ago
A company policy requires that, for every 30 employees, there must be 3 supervisors. If there are 285 supervisors at the company
ella [17]

Answer:

2850 employees

Step-by-step explanation:

Given that ,

3 supervisors = 30 employees

1 supervisor = 30/3 employees

285 supervisors = 30 / 3 × 285 employees

285 supervisors = 10 × 285 employees

285 supervisors = 2850 employees( Answer)

7 0
3 years ago
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