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2 years ago

10

PLZ ANSWER NOW FOR BRAINLEIST ANSWER AND 30 points!!! Show all work

2 answers:

Darina [25.2K]2 years ago

7 0

A simple method is to square all the answers

$6^2 = 36~~~( \sqrt{40} )^2 = 40 ~~5^2 = 25 ~~~~ (\sqrt{23} )^2 = 23$

now arrange them

horsena [70]2 years ago

7 0

Sqrt 40 is between two perfect squares, sqrt 36 and sqrt 49.
Sqrt 40 is greater than 6 and less than 7.

Sqrt 23 is between the perfect squares 16 and 25.
Sqrt 23 is greater than ; and less than 5.

Sqrt23, 5, 6, sqrt40,

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Given these similar triangles, what is the common ratio of triangle LJK to triangle EFG?

kondaur [170]

Find the corresponding sides of each triangle and divide to find the ratio.

FG = KJ

EF = JL

EG = LK

16.8 / 5.6 = 3

20.1 / 6.7 = 3

The common ratio is 3

4 0

2 years ago

Read 2 more answers

2x + 1 ≤ 7 and -2x + 1 ≤ 9

djyliett [7]

Answer:

Step-by-step explanation:

6 0

2 years ago

Julio bought 4 pencils and 3 erasers for $0.37 and David paid $0.33 for 3 pencils and 4 erasers. What is the cost of one pencil?

nirvana33 [79]

Answer:

Each pencil costs $0.07 and each eraser costs $0.03

Step-by-step explanation:

System of linear equations

It refers to the study of systems when n variables are related in m linear equations, each one is not independent from the others. Solving such systems can be done following very diverse approaches.

Let p=the price of each pencil while e is the price each eraser

Julio bought 4 pencils and 3 erasers, spending

$4p+3e=0.37$

David bought 3 pencils and 4 erasers, spending

$3p+4e=0.33$

The system of equations is written in the form

$\left\{\begin{matrix}4p+3e=0.37\\ 3p+4e=0.33\end{matrix}\right$

We'll solve it by reduction. Multiplying the first equation by -3 and the second by 4:

$\left\{\begin{matrix}-12p-9e=-1.11\\ 12p+16e=1.32\end{matrix}\right.$

Adding both equations:

7e=0.21

e=0.03

Multiplying the first one by -4 and the second by 3

$\left\{\begin{matrix}-16p-12e=-1.48\\ 9p+12e=0.99\end{matrix}\right.\end{matrix}\right.$

Adding both equations:

-7p=-0.49

p=0.07

Solution: Each pencil costs $0.07 and each eraser costs $0.03

7 0

2 years ago

Line JK passes through points J(–3, 11) and K(1, –3). What is the equation of line JK in standard form?

masha68 [24]

Answer:

The Width of the garden will be 9 feet.

Step-by-step explanation:

Given:

Manny has wood =48 feet

Length of the garden = 15 feet

The equation which can be used .

We need to find the width of the garden.

Solution :

Now Length of the garden is given we will substitute in the given equation to find the width.

Now Using Subtraction property we will subtract both side by 30 we get;

Now Using Division Property we will divide both side by 2 we get;

Hence the Width of the garden will be 9 feet.

4 0

2 years ago

10 people who build at the same rate can frame a house in 6 days. What fractional part of a house can 4 people frame a house in

Alina [70]

10 people who build at the same rate can frame a house in 6 days. That means it will take one person $10\times6=60$ days to finish the house.

Which means that it will take 4 people $\frac{60}{4}=15$ days to finish the house.

So, the fractional part of the house 4 people can frame in 3 days will be $\frac{3}{15}=\frac{1}{5}$

Thus, Option D is the correct answer.

8 0

2 years ago