9x-5y=2
3x-4y=10
can anyone please explain how the answer of this question is:
x=-4
y=-2

Answers

Answer 1

Answer:

9x-5y=2======>9x-5y=2===>(+)7y=-28=>y=-4=>(1)3x-4(-4)=10=>x+16=20=>x=4

3x-4y=10(1)=>(×-3)-9x+12y=-30=>(+)

Answer 2
ANSWER: x = -2 ; y = -4
Ok done. Thank to me :>
9x-5y=23x-4y=10can Anyone Please Explain How The Answer Of This Question Is: X=-4 Y=-2

Related Questions

HELP PLZZ!! ill give brainlist

Answers

Answer:

Step-by-step explanation:

The spinner should land on whatever color 25% of the time.

25% of 20 = 25/100 * 20 = 500/100 = 5

So the correct answer is the number of times the spinner lands on a color 5 times. Only white does that. All the other colors either go above 5 or below it.

Answer:

White

Step-by-step explanation:

to find the theoretical probability, you just divide the number of times you spin it, which is 20, by how many equal sides the spinner has which is 4.

So therefore you'll do:

20 ÷ 4 = 5

So since that is the same probability as white, the answer is white.

Which inequality represents this statement?

A number is no more than 5.


n<5

n≥5

n>5

n≤5

Answers

Answer: the last one!! [tex]n\leq 5[/tex]

Step-by-step explanation:

When there is a line under it means no more than!

okay what is 14.45 rounded to the nearest whole number​

Answers

Answer:

14

Step-by-step explanation:

When rounding, 5+ you round up. below that, you round down.

Help plsss I REALLY need help!

Answers

Answer:

6x^2√x

Step-by-step explanation:

6 times 6 is 36

So you can take 6 out and leave x^5

However x^5 also have a power to square by:

x^4 which can turn into x^2

So we can take x^2 out

So the answer is 6x^2√x

Hope this helps!

I think its

the bottom left i might be wrong

HELP HURRY PLS

What is the equation of this line?
A. y= 3/2x -2
B. y=2x+2/3
C. y=2/3x-2
D. y= -2x+3/2

Answers

Answer:

The answer is C, y = 2/3x -2

Step-by-step explanation:

Use the rise over run strategy on linear functions such as this one

can i get some help ?::

Answers

Answer:

7+3^2-2*5/4-1*2=

7+9-10/-2=

6/-2 or -3

3/4+1/8=

7/8 divided by 1/8=

7-2^2

3

-3<3

the second one is larger

Hope This Helps!!!

Find the value of y.

Answers

The value of the variable 'y' will be square root 21 that is √21.

What is the triangle?

The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180 °.

The ratio of the matching sides will remain constant if two triangles are comparable to one another.

The ratio of the corresponding sides of a similar triangle remains constant. Then the equation is given as,

y / 3 = 7 / y

Simplify the equation, then we have

y / 3 = 7 / y

y² = 21

y  = √21

The value of the variable 'y' will be square root 21 that is √21.

More about the triangle link is given below.

https://brainly.com/question/25813512

#SPJ1

HELPPP PLZZ AND THANK YOU <3

Answers

Answer:

Step-by-step explanation:

identify the transformation performed on the figure below

Answers

A) Translation

hope this helps!

Answer:

translation

Step-by-step explanation:

this is a translation because every point of the shape remain in the same position as it is moved.

=
WHOLE NUMBERS AND INTEGERS
Word problem on unit rates associated with ratios of w
Charlie types at a rate of 14 words per minute.
How many words does he type in 2 minutes?
i words
OB
S
?

Answers

28 wpm
hope this is helpful
I think he typed 24 words

What do I need to know?
I need help on this question please

Answers

Answer:

i cant see the Q

Step-by-step explanation:

P(x)=−.002x2+2.5x−700

Answers

Answer:

P = − 0.002x + 2.5 − 700 over x

Step-by-step explanation:

Use synthetic substitution to find p(3) for p(x)=x^3-2x^2-x+2

Answers

p(3)= 3^3 - 2(3)^2 - 3 +2
p(3)= 9 - 18 - 1
Answer: p(3)= -10

Answer:

p(3)= -10

Step-by-step explanation:

What is the area of the following circle? Use 3.14 for pi and enter your
answer as a decimal.
p=7
units2

Answers

3.14 x 7 x 7 = 153.86

Jan took her brother out to dinner. The cost of Jan’s dinner was $18.50. The cost of her brother’s dinner was $19.00. If they want to add a 15% tip for the waitress, what will be the total bill?

Answers

The total bill that would be paid by Jan is equal to $43.125.

Given the following data:

Cost of Jan’s dinner = $18.50.Cost of brother’s dinner = $19.00.Tip = 15%

To determine the total bill that would be paid by Jan:

First of all, we would calculate the total cost of their dinner as follows:

[tex]Total\;cost = 18.50 + 19.00[/tex]

Total cost = $37.50

Next, we would calculate the tip cost for the total cost of their dinner:

[tex]Tip\;cost = \frac{15}{100} \times 37.5\\\\Tip\;cost =0.15\times 37.5[/tex]

Tip cost = $5.625

For the total bill:

[tex]Total\;bill = Total\;cost + Tip\;cost\\\\Total\;bill = 37.5 + 5.625[/tex]

Total bill = $43.125.

Read more: https://brainly.com/question/11285399

If a = 5i and b
-2 + i, then find the value of ab in fully simplified form

Answers

42. 51 $\♤ ●gd rgbdyfurudgdhsuxu

Plz, Help Me Quickly!!
I will mark Brainliest for the best answer.

Answers

Answer:

help you with what

Step-by-step explanation:

What is the problem?

which expression is equal to 4 to the power of 5 times 4 to the power of -7 divided by 4 to the power of -2

Answers

the answer is 268435456

Select the correct answer.
Martha manages a home improvement store and uses this function to model the number of customers that visit the store each hour on a
Saturday afternoon.
n(t) = -2.82t2 + 25.746 + 60.87
Which graph would most likely be associated with this model?

Answers

The given quadratic equation gives the parameters of the shape of the

graph of the equation.

The graph that is most likely associated with the model is; graph B

Reasons:

The given function is n(t) = -2.82·t² + 25.74·t + 60.87

by analyzing the above function, we have;

At t = 0

n(0) = -2.82 × 0² + 25.74 × 0 + 60.87 = 60.87

The x-coordinate of the maximum point is given by [tex]\displaystyle x = -\frac{b}{2 \cdot a}[/tex]

Which gives;

[tex]\displaystyle t = -\frac{25.74}{2 \times (-2.82)} \approx 4.564[/tex]

The maximum value of the function is therefore;

n(4.564) = -2.82 × 4.564² + 25.74 × 4.564 + 60.87 ≈ 119.61

The characteristics of the equation are;

Initial value of equation = 60.87

t-coordinate of the maximum point, t ≈ 4.564

Maximum value of the of the function = 119.61

By comparing with the given graphs, we have;

[tex]\begin{tabular}{c|c|c|}&Graph A&Graph B\\Initial value&100&75\\t-value at max point&7&4\\Maximum value&200&125\end{array}\right][/tex]

Therefore, the graph that will most likely be associated with the model is; graph B.

Learn more about graphs of quadratic equations here:

https://brainly.com/question/10989920

Answer:

The correct answer is graph B.

Step-by-step explanation:

I got it right on the Edmentum test.

determine if the two triangles are congruent.If they are state how you know

Answers

9. yes, 2 congruent sides

10. no

11. yes, 1 congruent side and angles

12. yes, 1 congruent side and angles

13. yes, 1 congruent side and angles

14. yes, 2 congruent sides

15. yes, congruent sides and angles

16. yes, congruent angles and sides

1. Which value is the closest to 0.9.997?
a.
1,000
b.
81
C.
10,000
d.
10

Answers

I think the answer would be D. 10 is closest to 0.9997

the size of the angles of a quadrilateral are in the ratio 1:2:3:3. calculate the size of each angle???​

Answers

The size of the angles of a quadrilateral are in the ratio 1:2:3:3. Calculate the size of each angle. Explanation. Verified. Step 1. 1 of 2.

Help!!!!!!!!!!

PLEASE!

Answers

Answer:

B

Step-by-step explanation:

The Government Soldiers didn't knew that they were Americans

Answer:

B) the government soldiers did not know the climbers were Americans when they started shooting at them.

Step-by-step explanation:

the other answers don't make sense.

There was no mention of A) a message C) not knowing how to communicate

D) trying to warn about the rebels.

By context clues, we can infer that when it was revealed that they were Americans, they realized they were on the same side and began to help them and stopped shooting at them.

PLZZ I NEED HELP ASAP!!! Due in 12 minutes!!!!
24 points!!!!


The map shows the location of the airport and a warehouse in a city. Though not displayed on the map, there is also a factory 72 miles due north of the warehouse.


Coordinate grid shown from negative 54 to positive 54 on x axis at intervals of 9 and negative 54 to positive 54 on y axis at intervals of 9. A straight line is shown between the points labeled Airport and Warehouse. Airport is the ordered pair negative 27, 36, and Warehouse is the ordered pair 27 and negative 36. A signage showing directions North, South, East, and West is shown in the empty quadrant on the graph.
A truck traveled from the warehouse to the airport and then to the factory. What is the total number of miles the truck traveled? (5 points)

54 miles
72 miles
144 miles
162 miles

Answers

144 miles as you can see from the slope in the graph
It would be 54 miles

A worker earns $30 every 4 hours. How much would the worker earn in 19 hours?

Answers

Step-by-step explanation:

30/4 = 7.5 per hour

now,

7.5 × 19 = 142.5

$142.5

Answer:

$142.50

Step-by-step explanation:

30 divide by 4 = 7.5

So each hour the worker would earn $7.50

7.5 x 19= The worker will earn 142.50 after working 19 hours.

what is 7 / 2/3 in simplest form

Answers

To do this we have to do 7 divided by 2/3

The first step to dividing fractions is to turn it into a mutipuacation  sentence

7x2/3

Now we want to flip the second fraction over or make it a reciprocal

Our new equation is

7x 3/2 which is equal to 21/2

There are two ways. You may simplify it to 10 1/2 or just leave it as it is

hope this helped!! If you have questions, feel free to ask

Compare the values.
9 x 10^2 is
?
times as much as 3 x 10^-2.

Answers

Answer:

Hopefully this explains o_O, also Merry Christmas!

Step-by-step explanation:

9 x 10^2 = 9 x 100 = 900

3 x 10^-2 = 3 x 1/100 = 0.03

Ratio of 900:0.03

The first one is 30000 bigger than the second

9 x 10^2 = 900
3 x 10^-2 = 0.03

30000 times more

900 : 0.03 = 30000

Find the area.
2 cm
2 cm
4 cm

Answers

Answer:

  6 cm^2

Step-by-step explanation:

The area of the trapezoid is given by the formula ...

  A = 1/2(b1 +b2)h

  A = 1/2(4 cm +2 cm)(2 cm) = 6 square centimeters

Answer:

6 cm^2

Step-by-step explanation:

The area of the trapezoid is given by the formula ...

A = 1/2(b1 +b2)h

A = 1/2(4 cm +2 cm)(2 cm) = 6 square centimeters

Hilda adds 5 to a number, then multiplies the sun by -2. The result is 6. Write and solve an equation to find the number, x. What is the number?

Answers

Answer:

-8

Step-by-step explanation:

-2*(x+5)=6

Divide both sides by -2

x+5=-3

x=-3-5

x=-8

Can someone please take the time out of they’re day and help me with this

Answers

Answer:

30 in

Step-by-step explanation:

18^2 + 24^2 = x^2

324 + 576 = x^2

900 = x^2

30 = x

Answer:

30 in

Step-by-step explanation:

With maths problems, first thing to do is to identify clearly the information that you have (from the question) and what you want to find;

Here, we have a right-angle triangle and given 2 of the sides, we are asked to find the other;

Considering this, if you've learnt it well and done plenty of practice, then you should realise pythagoras theorem can be applied to get the unknown side;

The square of the two given sides added will give the square of the unknown side:

(24)² + (18)² = x²

576 + 324 = x²

x² = 900

x = sqrt(900)

x = 30

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