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Scorpion4ik [409]
2 years ago
7

PLEASE SOMEONE HELP!!!!!!!

Mathematics
2 answers:
anastassius [24]2 years ago
6 0
It would be step three 
jek_recluse [69]2 years ago
5 0
The answer to this question is the second one: "In Step 2, she divided 8 by 100 instead of 100 by 8, so she cannot multiply the numerator by the factor." This is because the percentage equivalent to 1/8 is 12.5%, which you get by cross-multiplying 1/8 and ?/100.  Basically, you multiply 1 with 100 (which is 100) and 8 with the unknown variable (8x).  You get something that looks like 100 = 8x.  Lastly, you divide 8 into both sides, which gets you 12.5.  Therefore, your answer is Harriet's error is in Step 2. 

<span>Here's another way to look at it.Percent means 'out of one hundred' so....think of it like this...one out of eight is how many out of 100? 1/8    =     ?/100 From here you can multiply both sides by 100. On the right side, the 100 on the top will cancel the 100 on the bottom of the fraction because 100/100 = 1 and 1 times anything doesn't change that thing's value. So ?/100  times 100 = just ?On the left side of the equation, we get100 times 1/8. 100 times 1 is 100 so we're left with 100 / 8. We get the answer 12.5 percent. A double check:1 divided by 8 = .125When we substitute the 12.5 for the ? above,12.5 divided by 100 = .125 
</span> 1/ 8 = 0.125 = 12.5 %   / Same as converting  1/8 of a dollar to cents 
First convert it to the decimal number, then Multiply by 100 ( shift decimal point twice to the right) and insert %( divide by 100) .
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Find the volume of the regular pyramid.
Fofino [41]
Volume
= 1/3 x Area x Height
= 1/3 x 110(Approximately) x 16
≈ 588.8 m^3

Answer is 588.8 m^3.
Hope it helps
7 0
1 year ago
Consider the quadratic equations
Debora [2.8K]
Consider the two functions as
<span>y1(x) =3x^2 - 5x, 
y2(x) = 2x^2 - x - c

The higher the value of c, father apart the two equations will be.
They will touch when the difference, i.e. y1(x)-y2(x)=x^2-4*x+c has a discriminant of 0.
This happens when D=((-4)^2-4c)=0, or when c=4.
(a)
So when c=4, the two equations will barely touch, giving a single solution, or coincident roots.
(b) 
when c is greater than 4, the two curves are farther apart, thus there will be no (real) solution.
(c) 
when c<4, then the two curves will cross at more than one location, giving two distinct solutions.

It will be more obvious if you plot the two curves in a graphics calculator using c=3,4, and 5.


</span>
6 0
3 years ago
Read 2 more answers
Help me please 5points only sry
AlladinOne [14]

x----chickens

y----ducks

50x+30y=550

44x+36y=532

x=11-3/5y

44x+36y=532

x=11-3/5y

44(11-3/5y)+36y=532

x=11-3/5y

484+48/5y=532 /*5

x=11-3/5y

2420+48y=2660

x=11-3/5y

48y=2660-2420

x=11-3/5y

48y=240 //48

x=11-3/5y

y=5

x=11-3/5*5

y=5

x=8----chicken

y=5-----duck

5 0
3 years ago
What is the value of x?
andrey2020 [161]

Since this is a parallelogram and the angles are adjacent to one another, a theorem will prove that the sum of these two angles would equal 180°

Therefore, we can set up this equation:

(2x + 24) + x = 180 ⇒ Remove parentheses

2x + 24 + x = 180 ⇒ Combine like terms

3x + 24 = 180 ⇒ Subtract 24 from both sides

3x = 156 ⇒ Divide both sides by 3

x = 52°


3 0
2 years ago
Read 2 more answers
What is the length of ST?​
defon

Answer:

5 cm

Step-by-step explanation:

Let's assume this is a number line were given.

Distance of S from 0 = 4 units

Distance of T from 0 = 9 units

Length of ST = the difference between T and S

ST = |9 - 4| = 5 units = 5 cm

This means S and T are 5 cm apart.

3 0
3 years ago
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