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tangare [24]
4 years ago
12

Select all that justify the following statement. 2 • 1/2 = 1

Mathematics
2 answers:
RSB [31]4 years ago
6 0

Answer:

Option G. is correct

Inverse - multiplication

Step-by-step explanation:

Inverse -multiplication states that:

If you multiply a number by its reciprocal.

For examples:

\frac{x}{y} \cdot \frac{y}{x} = 1

Given the expression:'

2 \cdot \frac{1}{2}=1

inverse of 2 is \frac{1}{2}

Therefore, the statement 2 \cdot \frac{1}{2}=1 justify inverse multiplication

klio [65]4 years ago
3 0

G. Inverese - Multiplication

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A machine packs 2/5 of a box every 1/2 minute. What is the number of boxes per minute packed? Why?
Alla [95]
If it is packed 2/5 in 1/2 minutes

1 minute =2/5*2=4/5 or 0.8 boxes/min
4 0
3 years ago
CONSTRUCTION Carlos is building a screen door. The height of the door is I foot more than twice its width. What is the width of
-BARSIC- [3]

Answer:

<h2>width = 3 feet</h2>

Step-by-step explanation:

Let h be the height of the door

and w be its width

The statement “The height of the door is I foot more than twice its width”

can be translated mathematically like this :  h = 2w + 1

Let’s solve the equation for w:

h = 2w + 1

⇔ 2w = h - 1

\Leftrightarrow w=\frac{h-1}{2}

now , if the door is 7 feet high then it’s width is equal to :

\Rightarrow \frac{7-1}{2} =\frac{6}{2} =3 \ ft

6 0
2 years ago
Read 2 more answers
A lighthouse is built on an exposed reef, 4.5 miles off-shore. The shoreline is perfectly straight, and a town is located 6 mile
Alisiya [41]

Answer: 3.94 hours

Step-by-step explanation:

From the question, the following parameters are given:

Distance offshore = 4.5 miles

Distance downshore = 6 miles

Speed when running = 3.4 mph

Speed with boat = 1.8 mph

distance of boat rowing = sqrt(4.5^2 + x^2)

Where

Speed = distance/time

Time = distance/speed

Time = distance of boat rowing/1.8

distance of running = 6 - x

Time = (6-x)/3.4

total travel time

t = sqrt(4.5^2 + x^2)/1.8 + (6 - x)/3.4

dt/dx = x/(1.8×sqrt(4.5^2 + x^2) - 1/3.4

d^2t/dx^2 = +ve at any x

x is at its minimum when dt/dx=0

x/(1.8×sqrt(4.5^2 + x^2) = 1/3.4

x = 6/sqrt(253) × 4.5 = 1.697 miles

Substitute x in

t = sqrt(4.5^2 + x^2)/1.8 + (6 - x)/3.4

We obtaine

t = sqrt(4.5^2 + 1.697^2)/1.8 + (6 - 1.69)/3.4

t = 2.672+ 1.266 = 3.94 hours

7 0
3 years ago
Can anyone help me out with this question? It doesn’t have to be a long answer, just a couple sentences. Thanks! ❤️
s2008m [1.1K]

Answer:

Step-by-step explanation:

I think both are the same because you have equations in the formula and what ever you do on one side you do to the other.

6 0
3 years ago
You have a TDEE of
Gemiola [76]

Answer:

look down

Step-by-step explanation:

we need to find 10% and multiply it by 4 to get 40 percent

10 percent of 2200 is 220 because 2200 divided by 10 is 220 then we multiply this by 4 and we should get 880

3 0
3 years ago
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