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2 years ago

Help me please and thank you !

Mathematics

2 answers:

serg [7]2 years ago

7 0

The answer is C. Why? Well, see below!

A would be incorrect because the problem is asking what the area of the stamp would be. In order to find area, we multiply length and width by each other. The given equation we initially had shows division, and would therefore be incorrect. B would be incorrect because although the equation has the correct evaluation symbol, the formula for identifying length would be L = A / W, which means length equals area divided by width. Because the area is 1/4 in this problem, the expression used for evaluation would be 1/4 divided by 1/5. D is incorrect because, like B, the evaluation expression would be 1/4 divided by 1/5.

Your final answer: Because C is the only problem that gives us a corresponding expression to the initial expression, C is the correct answer. If you need extra help, let me know and I will gladly assist you.

olya-2409 [2.1K]2 years ago

6 0

Answer:

Step-by-step explanation:

(A)length of a stamp=1/5foot

wide of a stamp=1/4foot

area of the stamp=?

area of the stamp=length of a stamp *wide of a stamp

=1/5*1/4

=1/20square foot

(B)an area of the room=1/4 square meter

width of the room=1/5meter

length of the room=?

an area of the room=width of the room*length of the room

1/4 =1/5 * length of the room

1/4 = length of the room/5

5/4 =length of the room

<h3>length of the room =5/4=1 1/4</h3>

(C)the area of the canvas=1/5square yard

width of the canvas=1/4 yard

length of the canvas=?

an area of the canvas=width of the canvas*length of the canvas

1/5 = width of the canvas*1/4

1/5 = width of the canvas/4

4/5 =width of the canvas

width of the canvas= 4/5

(D)length of the rectangular course=1/5mile

area of the rectangular course=1/4square mile

width of the rectangular course=?

an area of the rectangular course

width of the rectangular course*length of the rectangular course

1/4 =width of the rectangular course*1/5

1/4 =width of the rectangular course/5

5/4 =width of the rectangular course

width of the rectangular course=5/4

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At the beginning of the year Monica puts a set amount of money into her health benefit account. Every month she withdraws $15 fr

podryga [215]

Answer:

An equation in the slope-intercept form will be:

y = 15x+210

Step-by-step explanation:

We know The slope-intercept form of the line equation

$y = mx+b$

where

m is the rate of change or slope

b is the y-intercept

Let x represent the time in months

Let y represent the amount of money remaining in the account.

Given that every month Monica withdraws $15 from this account for her contact lenses

Thus, the rate of change or slope = m = 15

Given that after 3 months she has $255 left in her account.

So, we take the point (3, 255)

substituting m = 15, x = 3 and y = 255 in the slope-intercept form to determine the y-intercept

y = mx+b

255 = 15(3) + b

switch sides

15(3) + b = 255

45 + b = 255

b = 255 - 45

b = 210

Now, substituting m = 15 and b = 210 in the slope-intercept form of the line equation

y = mx+b

y = 15x+210

Therefore, an equation in the slope-intercept form will be:

y = 15x+210

7 0

3 years ago

QUICK will give brainliest to correct answer please and thank you.

hammer [34]

Answer:

Step-by-step explanation:

because if you square root 30, the value is: 5.477225575, it is neither 5.4 and 5.5

7 0

2 years ago

Which number(s) below belong to the solution set of the inequality Check all that apply. x + 30 < 60 a.50 b.45 c.300 d.1 e.29

Igoryamba

Answer:

e.29 d.1

Step-by-step explanation:

x+30<60 :

we will replace with the values we have :

300 that's a big number . Obviously it isn't a solution
50 : 30+50 = 80>60 so no
45: 30+45= 75 >60 so no
30+30 = 60 we have < not ≤ so no
1 yes . it's obvious
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6 0

4 years ago

Karan needs to choose between two gym plans. He can either pay a $150 joining fee and a $10 monthly fee, or he can pay a $50 joi

Ierofanga [76]

Let x be the month on which the fee for two plans are equal.

Therefore,

150 + 10x = 50 + 30x

10x - 30x = 50 - 150

-20x = -100

x = 5

Cumulative cost = 150 + 10(5)

= 150 + 50

= 200

Hence, Karan will pay a cumulative cost of $200 dollars with either plan to go to the gym for 5 months.

4 0

3 years ago

New York City has a population of 8.55 million and 300 square mile. Manhattan has 1.64 million and 23 square miles. How much gre

harkovskaia [24]

Given :

New York City has a population of 8.55 million and 300 square mile area .

Manhattan has 1.64 million and 23 square miles area .

To Find :

How much greater is the population density of Manhattan than New York City.

Solution :

Population density of New York City :

$D_{NY}=\dfrac{8.55}{300}=0.029 \ million/mile^2\\\\D_{M}=\dfrac{1.64}{23}=0.071 \ million/mile^2$

Now ,

$D_{M}-D_{NY}\\\\(0.071-0.029)=0.042\ million/miles^2$

Therefore , population density of Manhattan is $0.042\ million/miles^2$ greater than New York City .

Hence , this is the required solution .

4 0

3 years ago