Plz help....................

Mathematics

1 answer:

kotegsom [21]3 years ago

3 0

Answer -3 <= n <= 4

so on the number line, the last one is the correct one.

hope it helps

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Mr. Johnson has 4 daughters. Each of his daughters has a brother. How many children does mr. Johnson have?.

777dan777 [17]

Answer:

Step-by-step explanation:

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5 0

1 year ago

Solve the following by elimination method <br> 11x+15y+23=0 and 7x-2y-20=0

mr Goodwill [35]

Let 11x + 15y + 23 = 0 be equation (1)
And 7x - 2y - 20 = 0 be equation (2)

Multiply equation (1) by 2:
22x + 30y + 46 = 0

Multiply equation (2) by 15:
105x - 30y - 300 = 0

Add equations (1) and (2):
22x + 105x + 30y - 30y + 46 - 300 = 0
127x - 254 = 0
127x = 254
x = 254/127
[x = 2]

Substitute x = 2 in equation (1) to find y:
11(2) + 15y + 23 = 0
22 + 15y + 23 = 0
15y + 45 = 0
15y = -45
y = -45/15
y = -3

Therefore, x = 2 and y = -3.

7 0

2 years ago

Please help me I don’t understand.

attashe74 [19]

Answer:

1 : 64

Step-by-step explanation:

Model:

1/2 in * 1/6 in = 1/12 in^2

Real:

1/3 ft * 1/9 ft = 1/3 * 12 in * 1/9 * 12 in = 16/3 in^2

model : real