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2 years ago

If a/4= b/7 what is the value of a-b/b

Mathematics

1 answer:

eimsori [14]2 years ago

7 0

Answer:

a = b*4/7

a-b/b

=4b/7 -b /b

=(4b-7b)/7 /b

=-3b/7 / b

cancelling b,

= -3/7

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For the following geometric sequence find the recursive formula and the 5th term in the sequence. In your final answer, explain.

VashaNatasha [74]

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3 years ago

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You are using the equation 4(p – 7) = 44 to determine how many pictures can be saved at one time to the photo stream on your cel

REY [17]

You would first distribute the 4 in the parenthesis and then you would add 7 to both sides and whatever you get you will have to divide it by 4 to find p. I hope that this hepls.

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2 years ago

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Pls help. I rly don't understand it.

yulyashka [42]

Answer:

You just need to demonstrate that the expression is not equivalent. To do that, we just need to evaluate the expression with a specific number.

$\frac{3}{8}x+2 \neq \frac{3}{2}x+5$

For $x=0$ , we have

$\frac{3}{8}(0)+2 \neq \frac{3}{2}(0)+5\\2 \neq 5$

Notice that the answer is true because 2 is not equivalent to 5.

Therefore, the expression is actually non-equivalent.

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2 years ago

A college bookstore charges $60 for a yearly membership. The first book is free with membership and any book after that costs $7

brilliants [131]

Answer:

The equation representing Total money spend being as a member is $m = 60+7.6(b-1)$

Step-by-step explanation:

Given:

Memberships charges = $60

Cost of 1 book = $7.60

Let number of books be 'b'.

We need to find Total money 'm' spend yearly on buying books after becoming member.

Now we know that 1 book is free for a member.

Total money spend 'm' will be equal to Sum Memberships charges and Cost of 1 book multiplied by number of books bought yearly minus 1.

Framing in equation form we get;

$m = 60+7.6(b-1)$

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2 years ago

What shape is created by the rotation and what is the

zlopas [31]

Answer:

<u>Option D: A cylinder with a circumference of about 50 units</u>

Step-by-step explanation:

The rest of the question is the attached figure.

The square shown has a perimeter of 32 units. The square is rotated about line k. What shape is created by the rotation and what is the approximate circumference of the base? Circumference of a circle: C = 2πr

===================================================

Given: the perimeter of the square = 32

perimeter of a square is four times the length of its side

So, the side length of square = 32/4 = 8 units

The square is rotated about line k.

So, it will form a cylinder with radius 8 units.

Circumference of a circle = 2 π r

Where, r is the radius of the circle.

Circumference of the base is C = 2 π * 8

∴ C = 16π = 16 * 3.14

∴ C = 50.26548 ≈ 50

The shape is created by the rotation is a cylinder with a circumference of about 50 units.

<u>So, the answer option is D.</u>

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2 years ago