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Harlamova29_29 [7]
3 years ago
7

Can someone simplify

Mathematics
1 answer:
Rashid [163]3 years ago
7 0

Answer:

Option (2). 2\frac{1}{4}

Step-by-step explanation:

The given expression is [-5\frac{1}{4}-(-7\frac{1}{2})]

We can rewrite the fractions as,

-5\frac{1}{4} = -(5+\frac{1}{4})

-7\frac{1}{2}=-(7+\frac{1}{2})

Now we will substitute the fractions in the expression,

[-(5+\frac{1}{4})]-[-(7+\frac{1}{2})]

= -(5+\frac{1}{4})+(7+\frac{1}{2})

= (-5 + 7) + (-\frac{1}{4}+\frac{1}{2})

= 2 + \frac{2-1}{4}

= 2 + \frac{1}{4}

= 2\frac{1}{4}

Therefore, Option (2). will be the answer.

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A company makes Poppy Lapel Pins.
Blizzard [7]

Answer:

1000 less 35% == 650

so 250 given to charity

total cost making the pins was 1000x 1.10 = 1100

so you need to find 60 percent of 650 =390

and 40 percent of 650 = 260

so then you need to find the cost 390 x 3 pounds each so × this and gives you 1170 cost sold for intotal

Then you have 260 ÷2 = 130 x 5 = 650

so you have 650+1170 = 1820 - 1100 cost to make =720 pounds

think this right

6 0
3 years ago
23 20' 48" is the same as _____. Round to the nearest hundredth of a degree.
boyakko [2]
So this is read as 23 degrees, 20 minutes, and 48 seconds.  Each degree has 60 minutes and each minute has 60 seconds, somewhat like time.  You must start from right to left for this to work.  This may seem complicated but the way to find this is as follows:  
23+(20+(48/60))/60.  A simpler way to see this is by first taking 48/60 which is .8.  Now you take 20+.8 which is 20.8 and you divide it by 60 once more.  This comes out to be approximately .35.  Now you have converted the seconds and minutes to degrees so you add 23+.35 which is 23.35.  Therefore your answer is 23.35 degrees.  
8 0
3 years ago
Line segment AB has a length of 4 units. It is translated 2 units to the right on a coordinate plane to obtain line segment A'B'
JulijaS [17]
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8 0
3 years ago
A line that passes through (-1, 6) and the origin
zmey [24]

Answer: The equation is y = -6*x

Step-by-step explanation:

I suppose that we want to find the equation for a line that passes through the point (-1, 6) and the origin (remember that the origin is the point (0,0))

A general linear equation is written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

If this line passes through the points (x₁, y₁) and (x₂, y₂), then the slope of the line is equal to:

a = (y₂ - y₁)/(x₂ - x₁)

Now we know that our line passes through the points (0, 0) and (-1, 6), then the slope is:

a = (6 - 0)/(-1 - 0) = 6/-1 = -6

Then our equation is something like:

y = -6*x + b

To find the value of b we can use the fact that this line passes through the point (0, 0).

This means that when x = 0, y is also equal to zero.

If we replace these values in the equation we get:

0 = -6*0 + b

0 = b

Then our equation is:

y = -6*x

7 0
3 years ago
Which of the angles is inscribed in •X ?
ira [324]

Answer:

It is BFA

Step-by-step explanation:

An inscribed angle stays inside the circle. If you go through each angle options, the other angles go out of the circle. BFA is the only angle that stays inside the circle.

4 0
3 years ago
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