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3 years ago

A driver travels 208 miles in 4 hours. what is the driver's speen,in miles per hour ?

Mathematics

2 answers:

valina [46]3 years ago

4 0

Answer:

Step-by-step explanation:

miles per hour so 208, which is miles and 4 which is hours so 208/4 which is 52

koban [17]3 years ago

4 0

Answer:

Hi there,

52 miles/hr

Step-by-step explanation:

we just divide 208 by 4

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A rectangular parking lot has a perimeter of 820 ft. The area of the parking lot measure SL 42,000 ft

horsena [70]

Answer:

a= 200

b = 210

Step-by-step explanation:

My assumption is, we have to find the length of sides of rectangle

Given

perimeter = 2a + 2b = 820 ft (i) (here a is smaller side and b is larger side)

area = a*b = 42,000 ft^2 (ii)

from eq (1)

2a + 2b = 820

=> 2(a+b) = 820

=> a+b = 820/2

=> a + b = 410

=> a = 410-b (iii)

putting the value of a in eq(ii), we get

(410-b) *b = 42,000

410b - b^2 = 42,000

0 = b^2 - 410b + 42000

b^2 - 410b + 42000 = 0

b^2- 200b- 210b + 42000 = 0

b(b-200)-210(b-200) = 0

(b-200)(b-210) = 0

b= 210 and b = 200

if b is larger side than b =210

By putting value of b in eq(iii),

a = 410 -210 = 200

6 0

3 years ago

A map has a scale of 1/2 inch= 20miles quinn wants to travel an actual distance

inessss [21]

Answer:

1.75 inches or 1 3/4inches

Step-by-step explanation:

A map has a scale of ½½inch=20mles. Quinn wants to travel an actual distance of 70miles. What will the length on the map be?

70/20

=7/2

=1/2×7/2

=7/4

=1 3/4 inches

in decimal its 1.75 inches

5 0

2 years ago

Explain distributive property of 5×198

Molodets [167]

5(100)= 500

5(90)= 450

5(8)= 40

500+450+40= 990

The answer is 990. Hope this helps!

6 0

3 years ago

A DECK OF CARDS CONTAINS RED CARDS NUMBERED 1,23,4,5,6, BLUE CARDS NUMBERED 1,2,3,4,5, AND GREEN CARDS NMBERED 1,2,3,4. IF A SIN

jeyben [28]

Answer:

5 over nine......................

5 0

3 years ago

Read 2 more answers

Write and solve an equation for the following word problem. Define your variable.

marshall27 [118]

Answer:

The variable is the number of clothes sold 'x'.

The equation is: $118.50=100+0.25x$

The number of clothes sold by Lynn are 74.

Step-by-step explanation:

Let the number of pieces of clothes sold be 'x'.

Given:

Earning of Lynn per cloth is $0.25.

Fixed earning of Lynn per day is $100

Total earning after selling 'x' clothes is $118.50.

Variable: Number of clothes 'x'.

Equation:

Earning of Lynn for 1 cloth = $0.25

∴ Earning of Lynn for 'x' clothes = $0.25\times x=0.25x$

Now, total earning of Lynn is the sum of fixed earning and earning from selling 'x' clothes. Therefore,

Total earning = Fixed earning + Earning for 'x' clothes

⇒ $118.50=100+0.25x$

Solution:

Add -100 both sides and then divide the result by 0.25 both sides. This gives,

$118.50-100=100-100+0.25x\\0.25x=18.50\\x=\frac{18.50}{0.25}=74$

Therefore, the number of clothes sold by Lynn are 74.

3 0

3 years ago