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3 years ago

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I need help with 4 and 5

1 answer:

MrRissso [65]3 years ago

3 0

These are made more difficult because you are supposed to figure out what question is being asked in each case.

4. Apparently, you're supposed to determine the fee for rental of each pair of skates. If that fee is represented by x, then the total rental cost for 7 pairs will be 7x. Adding that to the group rate gives the total charge:

... 7x + 9 = 30

5. Apparenly, you're supposed to determine the fraction of a pan of brownies that each student will get. Let that be represented by x. Then the total amount of brownies the 30 students get is 30x. Added to the 7 pans that are donated, the total is the number of pans that were baked.

... 30x + 7 = 9

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8 + z = 19. step equations

steposvetlana [31]

Answer:

11

Step-by-step explanation:

First subtract

19-8= Z

So solution would be

Z=11

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3 years ago

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LK is tangent to circle J at point K. Circle J is shown. Line segment J K is a radius. Line segment K L is a tangent that inters

Evgen [1.6K]

Answer:

$(B)r=\dfrac{85}{12}$

Step-by-step explanation:

Given a circle centre J

Let the radius of the circle =r

LK is tangent to circle J at point K

From the diagram attached

LX=6
Radius, XJ=JK=r
LK=11

Theorem: The angle between a tangent and a radius is 90 degrees.

By the theorem above, Triangle JLK forms a right triangle with LJ as the hypotenuse.

Using Pythagoras Theorem:

$(6+r)^2=r^2+11^2\\(6+r)(6+r)=r^2+121\\36+6r+6r+r^2=r^2+121\\12r=121-36\\12r=85\\r=\dfrac{85}{12}$

The length of the radius, $r=\dfrac{85}{12}$

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3 years ago

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Simplify.<br> 7x +84/(x + 12)(x+10)

Tasya [4]

Answer:

{7x^2+168x+840}/{x+12}

Step-by-step explanation:

3 0

2 years ago

V/7= 22 what does v=

Whitepunk [10]

<span>V/7= 22
Multiply 7 on both sides
Final Answer: V = 154</span>

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3 years ago

What pattern of 7, 15,27

GarryVolchara [31]

Ok well what I did but I’m not sure if it answers your question but I did 27-15=12-7=5 and that what I got maybe it’s 5 it’s just an assumption

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3 years ago

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