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3 years ago

Write and solve a proportion to answer the question. 34 is 60% of what number?

Mathematics

1 answer:

yarga [219]3 years ago

8 0

Answer: 20 2/5

Step-by-step explanation: 60/100=x/34

100x/100=2040/100

x=102/5=20 2/5

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What height on the wall will a 15 foot ladder reach if it is placed 3.5 feet from the base of the wall...???

umka2103 [35]

Answer:

14.6 feet

Step-by-step explanation:

Let the height of the ladder be the hypotenuse, the distance from the wall be the base and the height till the ladder reaches be the perpendicular.

Using Pythogoras theorem,

H^2 = p^2+b^2

p^2 = H^2-b^2

p = under root(H^2-b^2)

p = under root(225 - 12.25)

p = 14.6 feet

7 0

3 years ago

Read 2 more answers

2(P +1) + 3(P + 2 ) > 2<br> need help pls

Vadim26 [7]

Answer:

Please check the explanation.

Step-by-step explanation:

Given the expression

$2\left(P\:+1\right)\:+\:3\left(P\:+\:2\:\right)\:>\:2$

solving the expression

$2\left(P\:+1\right)\:+\:3\left(P\:+\:2\:\right)\:>\:2$

$2\left(P+1\right)+3\left(P+2\right)=5P+8$

so the expression becomes

$5P+8>2$

subtracting 8 from both sides

$5P+8-8>2-8$

$5P>-6$

Dividing both sides by 5

$\frac{5P}{5}>\frac{-6}{5}$

$P>-\frac{6}{5}$

Therefore,

$2\left(P+1\right)+3\left(P+2\right)>2\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:P>-\frac{6}{5}\:\\ \:\mathrm{Decimal:}&\:P>-1.2\\ \:\mathrm{Interval\:Notation:}&\:\left(-\frac{6}{5},\:\infty \:\right)\end{bmatrix}$

The graph is also attached below.

5 0

2 years ago

What is the value of Q?

butalik [34]

Answer:

52 degrees

Step-by-step explanation:

4 0

2 years ago

How do you differentiate y = 3x3 - 2x-4

riadik2000 [5.3K]

Answer:

y' = 9x^2 + 8x^-5

Step-by-step explanation:

General Principle

y' = ax^b

y' = a*b * x^(b-1)

Solution

3x^3 = 3*3x^(3-1)

3x^3 = 9x^2

-2x^-4 = -2*-4 x ^(-4 - 1)

-2x^-4 = 8 x ^-5

Answer

y' = 9x^2 + 8x^-5

7 0

3 years ago

Help plz plz plz plz .

nikklg [1K]

The y intercept is where the line hits the verticals line of the graph. Hope this helps!

7 0

3 years ago