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asambeis [7]
4 years ago
12

Will give brainliest!! Create a rectangle around the parallelogram. The dimensions of this rectangle are . Find the area of the

four right triangles surrounding the parallelogram. The total area of the triangles is square units. Subtract the triangle areas from the area of the rectangle to obtain the area of the parallelogram. The area of parallelogram ABCD is square units.

Mathematics
2 answers:
bezimeni [28]4 years ago
7 0

Answer:1. 11 by 20 2.110 square units 3. 110 square units

Step-by-step explanation:

loris [4]4 years ago
4 0

Answer:

1:11 by 20

2:110

3:110

Step-by-step explanation:

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Jane wants to buys some lollipops. If she buys 2 lollipops, she will have 3 dollars left. If she wants to buy 3 lollipops, she w
Degger [83]

Since Jane wants to buys some lollipops, Jane has $13 dollars.

To answer the question, we need to solve simultaneous equations

<h3>What are simultaneous equations?</h3>

Simultaneous equations are pairs of equations that contain two unknowns

<h3>How to calculate how much Jane has using simultaneous equations</h3>

Let

  • x = price per lollipop and
  • y = total amount Jane has

We know that If she buys 2 lollipops, she will have 3 dollars left, so we have that

y - 2x = 3  (1)

Also, If she wants to buy 3 lollipops, she will need 2 more dollars. So, we have that

y + 2 = 3x  (2)

<h3>The required simultaneous equations</h3>

So, the required simultaneous equations are

y - 2x = 3  (1)

y + 2 = 3x  (2)

From (1), x = (y - 3)/2

Substituting x into (2), we have

y + 2 = 3x  (2)

y + 2 = 3(y - 3)/2  

2(y + 2) = 3(y - 3)

2y + 4 = 3y - 9

2y - 3y = -9 - 4

-y = -13

y = -13/-1

y = 13

So, Jane has $13 dollars.

Learn more about simultaneous equation here:

brainly.com/question/949220

#SPJ1

7 0
2 years ago
A box of cereal is shaped like a rectanular prism. The box is 20 centimeters long, and 30 centimeters high. The volume is 3,600
frozen [14]

Answer:

20 x 30 = 600

3,600/600=6

Check if it works

20 x 30 = 600

600 x 6 = 3,600

the missing width is 6

Step-by-step explanation:

5 0
3 years ago
Three shoppers from the survey are selected at random, one at a time without replacement. What is the probability that none of t
Travka [436]

Answer:

0.395

Step-by-step explanation:

The computation of the probability that none of the three shoppers purchased electronics is shown below:

So, first we have to determine the number of shoppers without considering the purchase i.e

= Total number of shoppers - electronics

where,

Total number of shoppers = Offices supplies + electronics + clothing + beauty supplies - electronics

= 18 + 25 + 40 + 12 - 25

= 95 - 25

= 70

Now the probability is

= \frac{70}{95}\times\frac{69}{94}\times\frac{68}{93}

= 0.395

5 0
3 years ago
K/-17 = -25<br><br> What is k?
Evgen [1.6K]

Answer:

425

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Suppose the half-life of a decaying radioactive isotope is 674 years. How long will it takefor the isotope to decay from 100 gra
KonstantinChe [14]

The half life formula is :

N(t)=N_o(\frac{1}{2})^{\frac{t}{T}}

where N(t) = remaining quantity after t years

No = Original Quantity

t = time in years

T = half life in years

From the problem, we have :

N(t) = 30 grams

No = 100 grams

T = 674

Solve for t :

\begin{gathered} 30=100(\frac{1}{2})^{\frac{t}{674}} \\ \frac{30}{100}=(\frac{1}{2})^{\frac{t}{674}} \\ \frac{3}{10}=(\frac{1}{2})^{\frac{t}{674}} \end{gathered}

Take ln of both sides :

\begin{gathered} \ln (\frac{3}{10})=\ln (\frac{1}{2})^{\frac{t}{674}} \\ \ln (\frac{3}{10})=\frac{t}{674}\ln (\frac{1}{2}) \\ t=\frac{674\ln (\frac{3}{10})}{\ln (\frac{1}{2})} \\ t=1170.71 \end{gathered}

The answer is t = 1170.71 years

5 0
1 year ago
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