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alexgriva [62]
2 years ago
7

Write a two-column proof on a space provided

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

Answer:

Step-by-step explanation:

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Evaluate the expression 120n + 160,500 when n= 32.<br> n=______
Mekhanik [1.2K]
120(32) + 160,500
= 3840 + 160,500
= 164,340
4 0
3 years ago
It took a plane 2 hours to go from Dallas to NY with the head wind and 1.5 hours to get back with the tail wind. If the speed of
vladimir2022 [97]

Answer:

360 miles

Step-by-step explanation:

let speed of plane be x

speed of wind be c

Also note D = RT, where

D is distance and R is rate and T is time

<u>For First Leg:</u>

we can write:

(x - c) * 2 = D

2x - 2c = D

<u>For Second Leg:</u>

we can write:

(x+c)*1.5 = D

1.5x + 1.5c = D

We can equate and write:

2x - 2c = 1.5x + 1.5c

0.5x = 3.5c

We know Speed of Wind, c, is 30, so we have:

0.5x = 3.5(30)

0.5x = 105

x = 105/0.5 = 210 [speed of airplane]

We know distance is

D = 2x - 2c

D = 2(210) - 2(30)

D = 420 - 60

D = 360 miles

The distance is 360 miles

6 0
3 years ago
Write each as a decimal. Round to the thousandths place.<br> 9) 78.4%<br> 10) 29%<br> Help
fomenos

Answer:

(a) 78.4\% = 0.784

(b) 29\% =0.290

Step-by-step explanation:

Required

As a decimal to nearest thousandth

Solving (a): 78.4%

78.4\%

Express as fraction

78.4\% = \frac{78.4}{100}

Solve fraction

78.4\% = 0.784 ----- This is already in thousandth place

Solving (b): 29%

29\%

Express as fraction

29\% =\frac{29}{100}

Solve fraction

29\% =0.29

Approximate

29\% =0.290

4 0
3 years ago
Five thousand two hundred sixty-seven. standard form
Sati [7]

Answer:

5,267

Step-by-step explanation:

Five thousand: 5,000

Two hundred: 200

Sixty: 60

Seven: 7

Put them together: 5,267

3 0
3 years ago
Read 2 more answers
According to some students, what is the true purpose of homework?
Sholpan [36]
Well acording to my teachers the true purpose of homework is to forge your mind to look beyond everyone else's mind by trying to get good grades
5 0
3 years ago
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