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MrRissso [65]
3 years ago
10

A rectangle was altered by increasing its length by 10 percent and decreasing its width by p percent. If these alterations decre

ased the area of the rectangle by 12 percent, what is the value of p?
a. 12
b. 15
c. 20
d. 22
Mathematics
2 answers:
Roman55 [17]3 years ago
4 0
It is d I hope I helped
svp [43]3 years ago
3 0

Answer:

C

Step-by-step explanation:

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An airplane flies with an constant speed of 440 miles per hour. How far can it travel in 185 minutes? Round to the nearest tenth
Irina18 [472]
440/60=7.3
7.3*185= 1350.5
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3 years ago
Rewrite the equation by completing the square. 4 x^{2} +20x +25 =0
Ede4ka [16]

Answer:

(x+5/2)^2 = 0

Step-by-step explanation:

4 x^{2} +20x +25 =0

Divide by 4

4/4 x^{2} +20/4x +25/4 =0

x^2 +5x +25/4 =0

Subtract 25/4 from each side

x^2 +5x +25/4 -25/4 =-25/4

x^2 +5x  =-25/4

Take the coefficent of x

5

Divide by 2

5/2

Square it

25/4

Add it to each side

x^2 +5x +25/4 =-25/4+25/4

(x+5/2)^2 = 0

Take the square root of each side

x+5/2 = 0

x = -5/2

8 0
3 years ago
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d1i1m1o1n [39]

Answer:

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3 years ago
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It takes a new mail carrier 4 hours to deliver the mail on route a. It takes an experienced mail carrier 3 hours to do the same
Pani-rosa [81]

Answer: \frac{12}{7}\ \text{hours}

Step-by-step explanation:

Given

New mail carrier takes 4 hours for delivery i.e.

New mail carrier completes \frac{1}{4} part of work in 1 hour

Old mail carrier takes 3 hours for delivery  i.e.

mail carrier completes \frac{1}{3}  part of work in 1 hour

If they work together, they complete the work in x hours i.e.

\Rightarrow \dfrac{1}{x}=\dfrac{1}{4}+\dfrac{1}{3}\\\Rightarrow \dfrac{1}{x}=\dfrac{3+4}{12}\\\Rightarrow x=\dfrac{12}{7}\ \text{hours}

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3 years ago
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jok3333 [9.3K]
Answer would be: B.) 3/8 cup 
4 0
3 years ago
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