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Nikolay [14]
3 years ago
13

Pls help and solve both problems ty sm!! :)

Mathematics
2 answers:
densk [106]3 years ago
8 0

Answer:

1) (9,6)

2) find 15 on the x axis and find the y value when x=15.

Step-by-step explanation:

goblinko [34]3 years ago
7 0

Answer:

1. (9,6) 2. Find (15,0) on the x axis and trace up until you meet the line, then find the point on the y axis corresponding to that point

Step-by-step explanation:

1.'s explanation is 2.'s explanation but reversed

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-2x+10y=25<br> X-25y=3<br><br> Elimination method
Mrac [35]

Answer:

equation form: x=-131/8y -31/40

Step-by-step explanation:

this is addition/elimination

8 0
2 years ago
Read 2 more answers
Nuance said she drew a square pyramid and that all of the faces are triangles.Is this possible?
sergeinik [125]
No because a square pyramid must hav a square for its base and a square is not a triangle

answer is not possible
3 0
2 years ago
Read 2 more answers
nathan smiled at 50 people one day and recorded that 36 people smiled back at him.Based on his observations how many people shou
Olegator [25]

Given :

Nathan smiled at 50 people one day and recorded that 36 people smiled back at him.

To Find :

How many people should Nathan expect to return a smile if he smiles at 650 people over a period of time.

Solution :

Ratio of people smiled by total number of people is :

R = \dfrac{36}{50}

Now, it is given that we have to use the given conditions.

Therefore, ratio will be same :

\dfrac{s}{650}=\dfrac{36}{50}\\\\s = \dfrac{36}{50}\times 650\\\\s = 468

Therefore, number of smiles Nathan expect to return is 468.

4 0
3 years ago
Ted has $3.90. He has only dimes and quarters. He has 27 coins altogether. How many of each does he have
mestny [16]

Answer: 8 quarters 19 dimes

Step-by-step explanation:

we already know 8+19=27, if 4 quarters equals a dollar then you use 4 quarters each to create 2 dollars.

then, use 10 dimes to create another dollar summing it up to $3. now all we have to do is make 90 cents, and we've already used 18 coins.

if we used another 9 dimes, that would equal 90 cents.

in conclusion, 4+4= 8

8+10= 18

18+9= 27, and having $3.90

6 0
3 years ago
What is the volume of the square pyramid with the base edges 24 ft and height
liberstina [14]

Answer:

A

Step-by-step explanation:

The volume of a pyramid is one third the height times the area of the base.

V = ⅓ h A

The base is a square, so the area is the width times length.

V = ⅓ h wl

Problem is, we don't know the height, only the slant length.  But we can use this to find the height.

If we cut a cross section down the middle of the pyramid, we get an isosceles triangle.  The base of the triangle is 24, and the legs are 37.

If we cut this triangle in half, we get two right triangles.  Each right triangle has a base of 12 and a hypotenuse of 37.

Now we can use Pythagorean theorem to find the height of the triangle, which is also the height of the pyramid.

c² = a² + b²

37² = 12² + h²

h = 35

Now we can find the volume.  h = 35, w = 24, and l = 24:

V = ⅓ h wl

V = ⅓ (35) (24) (24)

V = 6720

So the volume is 6720 ft³, or answer A.

8 0
3 years ago
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