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Allushta [10]
3 years ago
13

Let d(t) be the total number of miles Joanna has cycled, and let t represent the number of hours after stopping for a break duri

ng her ride.
d(t)=12t+20

So,_______ d(4) = . This means that after _____________, Joanna __________.
Mathematics
2 answers:
Alexandra [31]3 years ago
7 0

Answer:

68

Step-by-step explanation:

Naddik [55]3 years ago
5 0

Answer:

d(4)=?

where

d= distance

t= hours

In this Linear function given by the law d(t) = 12t +20 and the graph below. To find the d(4), means to find out how many miles she cycled in the instant 4 hours.

By this function, after a break , the instant t=0, she had already cycled 20 miles.

Let's calculate

d(4) = 12(4) +20

d(4) =48+20

d(4)= 68 miles

Step-by-step explanation:

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zzz [600]

Answer:

$337.05

Step-by-step explanation:

450 x (1- 0.3)= $315

$315 x (1+0.07)= $337.05

4 0
3 years ago
Please help me with vivid explanation​
Ivanshal [37]

Answer:

864 m²

Step-by-step explanation:

  • First calculate the total area of the rectangular field

The area of a rectangle is given by the product of the length and the width

let A be the total area

A = 100*120

A = 12000 m²

Calculate the area of the small rectangles

  • Let A' be the total area of the four small rectangles and A" the area of one small rectangle
  • A' = 4 A"
  • A' = 4 [(\frac{120-4}{2})*(\frac{100-4}{2})]
  • A' = 4*58*48
  • A' = 11136 m²

  • Substract the A' from A to get the area of the road

Let A"' be the area of the road

A"' =A-A'

A"' = 12000-11136

A"' = 864 m²

3 0
3 years ago
Find the distance from point A (4,2) to point B (9,7).
Nataliya [291]

Answer:

11

Step-by-step explanation:

3 0
3 years ago
I bought a car of 650,000 and<br>sold it for 520,000. Find the<br>lost Percent ?<br>​
Tom [10]

Answer:

20% decrease in value.

Step-by-step explanation:

Do 650,000 divided by 100 to find what 1% of the original price is:

650,000 divided by 100 = 6,500

To find what percentage of the original price 520,000 is, we divide it by 1% of the original cost (6,500):

520,000 divided by 6,500 = 80 (percent)

So if 520,000 is 80% of 650,000 the car has decreased in value by 20%.

7 0
3 years ago
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Sladkaya [172]

Answer:

Step-by-step explanation:

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SI = principal × rate × time/100

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Principal = $8750

Rate = 9.75%

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Interest = 1,706.25

Hence the finance charge to the nearest whole dollar is $1706

8 0
3 years ago
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