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svlad2 [7]
3 years ago
9

Help me on these questions

Mathematics
1 answer:
tatyana61 [14]3 years ago
8 0
2) 5:3=15:25
3)18:12=27:8
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What is the distance from -2 to 1.5 on the number line
Inga [223]
3.5 because you turn the negative into the positive and add the 1.5
8 0
3 years ago
Kwame bought a car for $25,000. The value of the car is decreasing at a rate of 6.5% each year. Write a function that represents
sweet-ann [11.9K]
<h3><u>The function that represents the price P of the car after x years is:</u></h3>

P = 25000(0.935)^x

<em><u>Solution:</u></em>

<em><u>The decreasing function is given as:</u></em>

y = a(1 - r)^t

Where,

y is future value

a is initial value

r is decreasing rate in decimal

t is time period

From given,

a = 25000

r = 6.5 \% = \frac{6.5}{100} = 0.065

number of years = x

future value = P

Therefore,

P = 25000(1 - 0.065)^x\\\\P = 25000(0.935)^x

Thus the function is found

8 0
3 years ago
The triangles shown below must be congruent. A. True or B. False
Leona [35]
A.true
Because congruent angles are exactly the same measure
7 0
3 years ago
Read 2 more answers
For the question I just asked
guajiro [1.7K]

Answer:

a = 36

Step-by-step explanation:

We use pythagoras theorem here.

h = 60

p = 48

b = a

h² = p² + b²

60² = 48² + b²

3600 = 2304 + b²

b² = 3600 - 2304

b² = 1296

b = 36

7 0
3 years ago
While walking between gates at an airport, you notice a child running along a moving walkway. Estimating that the child runs at
tekilochka [14]

The speed of the moving walkway relative to the airport terminal exists at 1.84 m/s.

<h3>How to estimate the speed of the moving walkway relative to the airport terminal?</h3>

Let x be the speed of the walkway.

(2.8 + x) = speed of child moving in direction of the walkway

(2.8 - x) =  speed of child moving against the direction of the walkway

Travel time = distance/speed

Travel time of child moving in direction of walkway = 23/(2.8+x)

Total elapsed time given = 29s

23/(2.8 + x)+ 23 / (2.8-x) = 29

LCD = (2.8 + x)(2.8 - x)

23(2.8 - x) + 23(2.8 + x) = 29(2.8 + x)(2.8 -x)

simplifying the equation, we get

23*2.8-23x+23*2.8+23x=29(2.8^2-x^2)

23(2.8+2.8)/29=2.8^2-x^2

x^2=(2.8)^2-(23*5.6)/29)=3.4

x=\sqrt{3.4}=1.84m/s

Speed of walkway = 1.84 m/s

The speed of the moving walkway relative to the airport terminal exists at 1.84 m/s.

To learn more about Speed refer to:

brainly.com/question/4931057

#SPJ4

4 0
1 year ago
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