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3 years ago

How do i solve 2/7v-1/7+14=20

Mathematics

2 answers:

Tatiana [17]3 years ago

8 0

Answer:

v = 43/2.

Step-by-step explanation:

2/7v - 1/7 + 14 = 20

2/7 v = 20 - 14 + 1/7

2/7 v = 6 1/7

2/7 v = 43/7

v = 43/7 / 2/7

v = 43/7 * 7/2

v = 43/2

SashulF [63]3 years ago

5 0

Answer: 1: Combine multiplied terms into a single fraction

2: Multiply the numbers

3: Add the numbers

4: Solution

= 43/2

Step-by-step explanation:

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attashe74 [19]

Answer:

Step-by-step explanation:

S = 2πr² + 2πrh

<u>Move 2πr² to the left side of the equation</u>

That's

2πrh = S - 2πr²

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We have the final answer as

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6 0

3 years ago

What is the vertex of f(x) = 3(x+2)^2 -1

inna [77]

Answer:

$The~vertex~of~parabola~f(x) = a(x-h)^2+k~is~(h,k).\\Given~equation~of~parabola~is:\\f(x) = 3(x+2)^2-1\\So,~ h =-2 ~and~k=-1\\Therefore,~(-2,-1)~is~the~vertex~of~parabola.$

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3 years ago

If 6/10 = 21/K what is K

timama [110]

You can cross multiply for this problem. So:

$\frac{6}{10}=\frac{21}{K}\\6K=210\\K=35$

So K=35!

Hope this helps! :)

3 0

3 years ago

Help :((( please will mark brainless

nikklg [1K]

Answer:

$A_{total} = 25\ ft^2$

Step-by-step explanation:

<u>Step 1: Determine the area of the square</u>

$A = s^2$

$A = (3\ ft)^2$

$A = 9\ ft^2$

<u>Step 2: Split the top figure into a square and triangle</u>

Determine the area of the rectangle

$A = l * w$

$A = (7\ ft - 3\ ft) * (5\ ft - 2\ ft)$

$A = (4\ ft) * (3\ ft)$

$A = 12\ ft^2$

Determine the area of the triangle

$A = \frac{b * h}{2}$

$A = \frac{\frac{7\ ft - 3\ ft}{2} * (5\ ft - 3\ ft)}{2}$

$A=\frac{2\ ft * 2\ ft}{2}$

$A = \frac{4\ ft^2}{2}$

$A = 2\ ft^2$

Since there are two right triangles in the triangle that we have we multiply the area that we got by 2 to get the total area.

$A_{triangle} = 2\ ft^2*2$

$A_{triangle} = 4\ ft^2$

<u>Step 3: Determine the total area</u>

$A_{total} = 9\ ft^2 + 12\ ft^2 + 4\ ft^2$

$A_{total} = 25\ ft^2$

Answer: $A_{total} = 25\ ft^2$

5 0

2 years ago

A flower shop has 11 red roses, 7 pink roses, 9 white roses, and 3 yellow roses in stock. One type of rose is randomly selected

Stels [109]

Answer:

in simplist form: 1/10

Step-by-step explanation:

11 plus 7 plus 9 plus 3 gives you 30 in total, compared to 3 yellow

when you compare you get 3/30

simplify and get 1/10

5 0

3 years ago