Which is the best first step and explanation for solving this system of equations 3x + y = 7 x + y = 3

Answers

Answer 1

Answer: Add the two equations together to eliminate y

Step-by-step explanation:

X+y=3

4x-y=7

I would use elimination since one equation has +y and one equation has -y

Add the two equations together

X+y=3

4x-y=7

-------------------

5x = 10


Related Questions

Round 344,501 to the nearest ten thousand

Answers

Answer:

340,000

Step-by-step explanation:

340e3

please help me with these two problems thank you!!​

Answers

Answer:

1st question: y=1/3x-1

2nd question: y=-2/3x+9

Step-by-step explanation:

Y=mx+b form is what you are using

when a line in parallel to a line they have the same slop wich is m

when a line in perpendicular they have the opposite reciprocal

Examples: 2/5 opposite reciprocal would be -5/2

2 x 2 x 4 x 4 x 4 x 5 x 5 x 5 x 5 use expoments to show your work)

Answers

Answer:

16,000

Step-by-step explanation:

Solving using exponents (picture)

Answer:

2^(2)*4^(3)*5^(4)=160000

Step-by-step explanation:

3x^3-21x^2-54x multiplicity

Answers

Answer:

3x (x+2) (x−9)

(factored)

hope this helps :D

Six students share 8 granola bars equally. How many granola bars does each student get?

Answers

Answer:

1 whole one and a third of one.

Step-by-step explanation:

1 1/3 of a granola bar

Answer: 1.33333333333 or 1.3 as a repeating decimal

Just divide 8 ÷ 6

Val is in a race that has a 2 10-mile swim and a 26 10-mile run. How far does Val
swim and run altogether?
28 miles
28 miles
28 miles
29 miles

Answers

Step-by-step explanation:

bdhdhjndnfdndnnskdkdkskdkdkd

A study found that 23% of the cars manufactured last year were SUVs, 13% of the cars manufactured were white, and 2% of the cars manufactured were white SUVs.

To the nearest whole percent, what is the probability that a car is an SUV, given that it is white?

9%
15%
21%
57%

Answers

Answer:

15%

Step-by-step explanation:

Deshawn earned $48 raking leaves last October. He decided to save 38 of his money. How much money did Deshawn save?

Answers

Answer:  I don't know i'm taking a benchmark about that question an that pop up

Step-by-step explanation:

Answer:

Step-by-step explanation:

Therefore, you would multiply 48/1 * 3/8 and that will give you your answer. 48/1 * 3/8 = 144/8, which is 144 divided 8. And that comes out to be 18, so Deshanwn saved $18.

Hope this helps

Let the x and y represent the tens digit and ones digit of a two digit number respectively. The sum of the digits of a two-digit number is 9. If the digits are reversed, the new number is 27 more than the original number. What is the original number?

Answers

Answer:  

The Original Number is 36 :)

explanation:

Help pls. Rauls classmates evaluated Raul’s conjecture as to whether it was true or false and gave a reason. Which response is correct?

Answers

Num 3 is the correct answer im pretty sure. Sorry if im wrong

Which of the following equations is true for ATUX? I u A X t e tan X = O cos X = O sin X =23 O Sin X =​

Answers

Answer:

second is a answer cos X= x/i

Answer:

Step-by-step explanation:

sin X = x / u

NOT THE PREVIOUS ANSWER

Which of the following changes in a dilation? (Help fast please)
A. shape
B. slope
C. size
D. angle measures

Answers

Answer:

C. size

Step-by-step explanation:

A dilation does not change the shape of a figure, but it can change the size.

Simplify the following expression:
9^−53 ⋅ 9^37
Please also explain your answer. Thanks!

Answers

Answer:

Simplify the expression.

Exact Form:

1 /1853020188851840

Decimal Form:

5.39659527  x 10  −  16

Step-by-step explanation:

simplify the equation(-3)^-4

Answers

Answer:

-12

Step-by-step explanation:

72 7272 so make sure uuyyyu

Find the length of the tangent segment AB to the circles centered at O and O' whose radii are a and b respectively when the circles touch each other

Answers

Answer:

[tex]AB=2\sqrt{ab}[/tex]

Step-by-step explanation:

From figure,

[tex]OA=a, \quad \quad O'B=b\\\Rightarrow OO'= (a+b) \quad \quad \text{and}\quad OD=(a-b)[/tex]

In triangle [tex]OO'D[/tex]

  [tex](OO')^2=(OD)^2+(O' D)^2[/tex]

[tex]\Rightarrow (a+b)^2=(a-b)^2+(O' D)^2\\\Rightarrow a^2+b^2+2ab-a^2-b^2+2ab=(O' D)^2\\\Rightarrow 4ab=(O' D)^2\\\Rightarrow O'D=2\sqrt{ab} \\\Rightarrow O' D=2\sqrt{ab}=AB \quad \quad [\because O' DAB\;\; \text{is a rectangle.}][/tex]

Hence, [tex]AB=2\sqrt{ab}[/tex]

The sum of two numbers is 57 and the difference is 23 what are the numbers?

Answers

34 is the answer


!!!!

Answer:

40 and 17

Step-by-step explanation:

40 + 17 = 57

40 - 17 = 23

Not much of an explanation but hope it helps!

A table of equivalent ratios is given.

What is the missing number in the table?

Answers

Answer:

It's 30

..................

they all are equal to 1:3

so 90/3=30

answer is 30 !

A cube is cut in to three parts by vertical slices find the volume of the shaded area The length and width of original is 20 cm and cut part is 10 cm

Answers

Answer:

4000 cm^3

Step-by-step explanation:

Note that no image was attached for reference purposes

Step one:

We are given that the original length and width of the cube is 20cm

if the cut part is 10cm

hence the dimension of the cut part is

lenght = 20cm

Width= 20cm

Hieght= 10cm

Step two:

the volume of the cut part will be

Volume= 20*20*10

Volume= 4000 cm^3

What is the answer in a whole number or decimal

Answers

Answer:

i = 8

Step-by-step explanation:

which description is correct?

an increase by 5/6

a decrease by 5/11​

Answers

Answer:

a decrease by 5/11 I beleive.

If the diameter of a circle is 80m, then what is the radius of the circle

Answers

Answer:

40m

Step-by-step explanation:

Radius is half of diameter

A super clearance sale, bathing suits were marked 85% off. What is the sale price of a bathing suit that was originally priced $60 ?

Answers

Answer: 9$
Explanation: 15% is how much a person will pay and 15% of 60 is 9$

Miles and kilometers are twi different scales for measuring distances. A 5-kilometer race is approximately 3.1 miles, and a 10-kilometer race id approximately 6.2 miles. Write an equation that shows the approximate distance in kilometers as a function if the distance in miles

Answers

Answer:

[tex]x=\dfrac{y}{0.62}[/tex]

Step-by-step explanation:

[tex]5\ \text{km}=3.1\ \text{miles}\\\Rightarrow 1\ \text{km}=\dfrac{3.1}{5}=0.62\ \text{miles}[/tex]

[tex]10\ \text{km}=6.2\ \text{miles}\\\Rightarrow 1\ \text{km}=\dfrac{6.2}{10}=0.62\ \text{miles}[/tex]

Let [tex]y[/tex] be the distance in miles. So distance in km is given by

[tex]x=\dfrac{y}{0.62}[/tex].

The equation that shows the approximate distance in kilometers as a function if the distance in miles is [tex]x=\dfrac{y}{0.62}[/tex].

Can someone Help me please

Answers

Answer:

47

Step-by-step explanation:

using exterior angle property,

23+5x-1=9x+2

→20=9x-5x

→20=4x→ x=5

angle PRS= 9X +2 = 9*5 +2= 47

PLEASE HELP!!!!
What is the average between 0.0, 1.2, 2.8, 4.2, 16.34

Answers

Answer:

4.904

Step-by-step explanation:

To find this, add all of the numbers up then divide by however many numbers there is

All numbers equal 24.52 the divide by 5

y = 5x + 14
what is the CROC (Constant Rate Of Change)?
and how do you know. (please help i've been stuck on this for about an hours now :,). )

Answers

Answer:

The answer is 5.

Step-by-step explanation:

Well if you were to graph this equation you'll see that the rise over run would be 5/1 which simplifies to 5.

HELP NEEDED ASAP!!!!!

Which point IS a solution?
A: (0,6)
B: (-3,4)
C: (1,0)
D: (-4,3)

Answers

Answer: (-3, 4)

Step-by-step explanation:

The point at which both lines intersect is (-3, 4)

And since they intersect at ONE point, it just has one solution.

Hope I helped!

Find the selling price.

Cost to store: $140

Markup: 25%

The selling price is $

Find the selling price.

Cost to store: $80

Markup: 60%

The selling price is $

Find the selling price.

Cost to store: $50

Markup: 10%

The selling price is $

Answers

Answer:

1.$175

2.$128

3.$55

Step-by-step explanation:

1.

40×.25=35

140+35=175

2.

80×.6=48

80+48=128

3.

50×.1=5

50+5=55

Answer:

1 87.5

2 49.7

3 0.79

4 700

5 4.8825

6 24

7 10

explanation:

sana makatulong

200 ÷ 70 ONLY THE ANSWER AND REMAINDER IF THERE IS.

Answers

It will be 00.2 but it’s 2 and the remainder is 60 hope this helps!

Answer:

2 remainder 60!

Step-by-step explanation:


Similar
Not Similar


Please help please

Answers

Answer:

I dont think thats similar

Step-by-step explanation:

Other Questions
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