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Snowcat [4.5K]
3 years ago
13

Evaluate the expression 2/5+3/4 / 1/2

Mathematics
1 answer:
hram777 [196]3 years ago
8 0
(0.4+0.75)/0.5
Your answer is 2.3

UPDATE
the answer is either 2 (3/10) as a mixed number or 23/10 as an improper fraction

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Keith is using photo software to enlarge a photograph that is 4 inches by 6 inches to 9 inches by 13.5 inches. What is the scale
Slav-nsk [51]

Answer:

2.25

Step-by-step explanation:

The old width of 4 inches became a new width of 9 inches.

Old: 4 in.

New 9 in.

The old length of 6 inches became a new length of 13.5 inches.

Divide the new size by the corresponding old size.

9/4 = 2.25

13.5/6 = 2.25

You see in both cases, the scale factor is 2.25

The scale factor is 2.25

4 0
3 years ago
Which is the constant term of the algebraic expression -2x^2+17-15x+7xy?
andrew11 [14]
The given expression is
-2x² + 17 - 15x + 7xy

The algebraic expression may be written as
-2x² + 7xy - 15x + 17

The constant term does not contain either x or y.
Therefore  17 is the constant term.

Answer: 17

7 0
3 years ago
A boat took 5 h to travel 60 km up a river, against the current. The return trip took 3 h. Find the speed of the boat in still w
Dafna11 [192]

Answer:

Correct answer: V₁ boat = 16 km/h and V₂ current = 4 km/h

Step-by-step explanation:

If we take speed (velocity) of the boat as V₁ and speed of the current V₂

Let us form equations:

Traveling down the current  V₁ + V₂ = 60/3 = 20 km/h

Traveling against the current  V₁ - V₂ = 60/5 = 12 km/h

V₁ - V₂ = 12

V₁ + V₂ = 20

If we add up the left and right sides of the equations we get:

2 V₁ = 32  =>    V₁ = 32/2 = 16 km/h

from the second equation we get:

V₂ = 20 - V₁ = 20 - 16 = 4 km/h

V₂ = 4 km/h

God is with you!!!

8 0
3 years ago
Help pleaseee 30 pointsss AM I CORRECT???
masha68 [24]

Answer:

Yes you are correct

Step-by-step explanation:

By doing that, you will get 8 which is the correct answer

4 0
3 years ago
Explain how you would solve 5x - 3 = 9. (there should be a minimum of 2<br> complete sentences). *
SpyIntel [72]
Haha, you first start off with adding 3 to both sides, cancelling the -3, and adding it to 9. you end up with 5x=12, in which you divide both sides by 5. you get 2 and 2/5 or 12/5! hope that helps :)
7 0
3 years ago
Read 2 more answers
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