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Kazeer [188]
3 years ago
7

Given an expression can you write an equivalent form of the expression and explain the properties you used?

Mathematics
1 answer:
weeeeeb [17]3 years ago
6 0
What is the expression? Tell me and I will help you.
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Johns made two 120 mile trips. He made his second trip in one hour less time than his first trip. The total time for the two tri
agasfer [191]

Answer:

120 miles:4 hours

Step-by-step explanation:

Johns made

<h3>two 120 mile trips</h3>

there are a total of 2 120 mile trips

<h3>his second trip in one hour less time than his first trip. The total time for the two trips was 9 hours</h3>

9 hours = 4 hours + 5 hours (5 hours - 4 hours = 1)

<h3> What was his average rate, in miles per hour, for the second trip?</h3>

120 miles:4 hours  simplify to 30 miles:1 hour

6 0
2 years ago
Read 2 more answers
A landscaping company is laying a triangular flower bed. The height of the trangle is 15ft. What lengths of the base will make t
mash [69]

Answer:

28 ft

Step-by-step explanation:

The height of the triangle = 15 ft

The least required area A = 210 ft^2

We know that the area of a triangle = 1/2bh

Where

b is the base

h is the height

Substituting, we have

210 = 1/2 x b x 15

210 = 15/2 x b

420/15 = b

b = 28 ft

5 0
3 years ago
A circle with a radius of 15 yards contains a sector with an area of 609 yde. Find the measure of
kondaur [170]

Answer: 310.3° or 5.41 radians.

Step-by-step explanation:

The area of a circle of radius R is calculated as:

A = pi*R^2

Now, if we have a sector of an angle θ degrees, the area of that sector is:

A = (θ/360°)*pi*R^2

In this case, we know that:

R = 15yd

And the area of the sector is 609 yd^2

Then we can replace these two values in the equation to get:

609yd^2  =(θ/360°)*3.14*(15yd)^2

(609yd^2)*360°/(3.14*(15yd)^2) = θ = 310.3°

And we want the angle also in radians.

We know that:

3.14 rad = 180°

(3.14 rad/180°) = 1

Then:

310.3° = 310.3°*(3.14 rad/180°) = (310.3°/180°)*3.14 rad = 5.41 radians.

4 0
2 years ago
Pepper Jamie has 12 picks. 1 out of every 4 pick is orange. The rest are green. How many picks are orange
Vlad [161]

your answer would be 3 picks

6 0
3 years ago
Read 2 more answers
stacy buys 3 cds in set for $29.98 .She saved $6.44 by buying the set instead of buying the individual cd's .If each cd costs th
MrMuchimi

3 CD → $29.98

29.98 - 6.44 = 23.54 → remained

If each CD costs the same amount ... ↓

23.54 ÷ 3 = 7.8466


$7.8466

8 0
3 years ago
Read 2 more answers
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