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densk [106]
2 years ago
7

The sum of Pete's and Sam's ages is 30. Five years ago, Pete was 3 times as old as Sam. How old is Sam? Let P = Pete's age, S =

Sam's age, and P + S = 30. Which of the following equations would complete the system?
Mathematics
1 answer:
g100num [7]2 years ago
7 0
The equations are:

1. P + S = 30
2. 3(S-5) = P-5
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Please help!! Will mark brainliest!!
Natali [406]

Answer:

C

Step-by-step explanation:

it adds by 8, and if y is 14, 22, etc, then 8 would be the y in y = etc.

and if it starts ith 14, it adds by 8


3 0
2 years ago
Find the slope of the line passing through the points (9,3) and (9,-5).
DedPeter [7]

Answer: its 8

Step-by-step explanation:

Use the distance formula to determine the distance between two points.

3 0
2 years ago
Use the table to write a linear function that relates y to x .<br><br> y=
nadezda [96]

Answer:

y= -1/4x

Step-by-step explanation:

3 0
3 years ago
If 4700 bricks each of size 25 cm x 16 cm x 10 cm are required to construct a wall
Rzqust [24]

Answer:

970 cm

Step-by-step explanation:

Given that:

Size of brick :

25cm × 16cm × 10cm

Number of bricks = 4700

Dimension of wall = 20 m long × 20 cm wide

Let the height = h

Hence, dimension of wall (length and height)

2000 cm × h

Dimension of window = 2m × 1.5m = 200cm × 150cm

Number of windows = 2

Total area covered by windows = 2 * (L * B)

= 2(200 * 150) = 60,000cm

Brick = (25 * 16) * 4700 = 1, 880, 000 cm ( length and height)

Wall = 2000 * height - 60,000 = 1880000

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Height of wall = 970 cm

6 0
3 years ago
Solve for x: 3 over 3x+ 1 over x+4= 10 over 7x
hram777 [196]

Answer:

3

Step-by-step explanation:

3/3x + 1/x+4 = 10/7x

3/3x + 1/x+4 = 10/7x , x=0,x=-4

1/x + 1/x+4 = 10/7x

1/x + 1/x+4 - 10/7x = 0

7(x+4)+7x-10(x+4) / 7x*(x+4) = 0

7x+28+7x-10x-40 / 7x*(x+4) = 0

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4x-12=0

4x-=12

x=3,x=0,x=-4

x=3

7 0
3 years ago
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