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3 years ago

Help pls. Which two parallelograms have the same area?

Mathematics

2 answers:

damaskus [11]3 years ago

5 0

Figure 1 and 4
Both equal 60

kozerog [31]3 years ago

4 0

Answer:

Figures 1 and 4

Step-by-step explanation:

both equal sixty

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A train 100 m long crosses a pole in 5 seconds.Find the speed of the train in kilometre per hour.

In-s [12.5K]

Answer:

$\sf72 km/h$

Step-by-step explanation:

Distance covered by the train in crossing the pole = 100 m.

$\sf Time \: taken=5 \: seconds$

$\sf \: Speed \: of \: the \: train = \frac{Distance }{Time}$

$\sf = \frac{100}{5} \: m/s$

$\sf \: = 20 \: m/s$

$\sf \: = 20 \times \frac{18}{5} \: km/h$

$\sf = 72 \: km/h$

Hence, the speed of the train is 72 km/h

6 0

3 years ago

A store manager predicts that 150 blankets will be sold if each blanket

Sever21 [200]

Answer:

$47

Step-by-step explanation:

Given: Store manager have predicted that 150 blanket can be sold at $32 each.

Also he has predicted sales of 2 blanket will decrease with $1 increase in price.

Now, finding price at which 120 blanket can be sold.

As we know cost of 150 blanket is $32 and we are finding for 120 blanket, which mean we have to increase price to decrease sales.

∴ $150-120 = 30\ blankets$

Using unitary method to find correct price.

For 2 decrease in sales = $1 increase in price

∴ 30 decrease in sales of blanket = $15 increase in price

Next, price of 120 blanket = $Price of 150\ blanket + increase\ in\ price$

Price\ of\ 120\ blanket = $32+15 = \$ 47$

∴ $47 should be the price for at least 120 blanket to be sold.

7 0

3 years ago

If a line has slope a, what is the slope of its reflection across the line y=x?

aleksandrvk [35]

Check the picture below.

notice the reflected gray line on the red one over the y=x line, the slope of either line across the y=x line is simply the other's upside-down.

$\stackrel{\textit{slope of line "a"}}{a\implies \cfrac{a}{1}}\hspace{5em}\stackrel{\textit{slope of its reflection}}{\cfrac{1}{a}}$

3 0

2 years ago

On average 20% of the calculators produced in a factory are faulty. Samples of 10 calculators are to be selected at a random eac

enyata [817]

The probability that in any one sample, two calculators or less will be faulty is; 100%

<h3>Probability and Random sampling</h3>

According to the task content;

A statement of fact indicates that; 20% of the calculators produced in a factory are faulty.

Hence, it follows that, when a sample of 10 calculators is selected randomly each day, 2 of the calculators are faulty by proportion.

Ultimately, the probability that in any one sample, two calculators or less will be faulty is; 100%.

Read more on probability and Random sampling;

brainly.com/question/25403659

3 0

2 years ago

new bookshelf for his book stores new mystery section 32 books there are 1120 mystery books how many shelves will he need to bui

Svetach [21]

Answer:

35 Shelves

Step-by-step explanation:

Important Information:

Mystery section 32 books there are 1120 mystery books

[ So 32 Books in each Section ]

Note:

Divide

Question to Answer:

How many shelves will he need to build

Explanation/Solution:

$\frac{1120}{32}$

Hence, He Need to build 35 Shelves.

3 0

3 years ago