All categories

3 years ago

Solve the system by substitution: -4.5x-2y=-12.15 3.25x-y=-0.75

Mathematics

1 answer:

valina [46]3 years ago

4 0

Answer:

The answer is x=0.97 while y=3.90

You might be interested in

What is the value of 30-(-45) ?

zlopas [31]

<h2>Answer:</h2>

<h2>Step-by-step explanation:</h2>

$30 - ( - 45) \\ \\ 30 + 45 \\ \\ 75$

<h2>Mark me as a brain list </h2>

6 0

3 years ago

Read 2 more answers

Plzzz help plzzzzzzzzzzzzzz

mezya [45]

Given:

The figure of two quadrilaterals.

In $ABCD,AB=18,BC=20,CD=22,AD=24$

In $EFGH,EF=27,FG=30,GH=34, EH=36$

To find:

Whether the figures are congruent, similar or neither.

Solution:

Ratio of corresponding sides are:

$\dfrac{AB}{EF}=\dfrac{18}{27}$

$\dfrac{AB}{EF}=\dfrac{2}{3}$

Similarly,

$\dfrac{BC}{FG}=\dfrac{20}{30}$

$\dfrac{BC}{FG}=\dfrac{2}{3}$

$\dfrac{CD}{GH}=\dfrac{22}{34}$

$\dfrac{CD}{GH}=\dfrac{11}{17}$

And,

$\dfrac{AD}{EH}=\dfrac{24}{36}$

$\dfrac{AD}{EH}=\dfrac{2}{3}$

Clearly, $\dfrac{AB}{EF}=\dfrac{BC}{FG}=\dfrac{AD}{EH}\neq \dfrac{CD}{GH}$ .

All corresponding sides are not proportional.

Therefore, the figures are neither similar nor congruent. Hence, third option is correct.

7 0

3 years ago

The number of songs a person has on their MP3 player<br><br><br><br> Qualitative<br> Quantitative

g100num [7]

Quantitative. Because they can be counted

5 0

3 years ago

How do you write this in number form six hundred thirty two thousand one hundred fifty six

alisha [4.7K]

This is how you’d write it 632,156

6 0

2 years ago

Read 2 more answers

0.11/0.2 as a decimal

kodGreya [7K]

Answer:

0.55

Step-by-step explanation:

To write 0.11/0.2 as a decimal you have to divide numerator by the denominator of the fraction.

We divide now 0.11 by 0.2 what we write down as 0.11/0.2 and we get 0.55 And finally we have, 0.11/0.2 as a decimal equals 0.55

8 0

2 years ago