Quick Pleaseee helpp

When is substitution method easier to use than graphing method!!!!

Answers

Answer 1

Answer:

When you do not have a graph paper

or

one of the equations has an isolated variable

or

when the equations are not in slope intercept form


Related Questions

Find two consecutive even integers such that the sum of the smaller and 3 times the larger is 330
I am so stuck please any one help

Answers

Answer:

The 2 numbers = 81 and 83

Step-by-step explanation:

As, one number = x

The other, because it's an even number and consecutive = x + 2

So the larger numbef here is x + 2

And they are saying 3 times x + 2 plus x = 330

So let's solve!

3 times x + 2 = 3(x+2) = 3x + 6

So we will add it to x = (3x + 6) +(x) = 4x + 6

So they are saying the sum of them will be 330

So, 4x + 6 = 330

4x = 330 - 6

4x = 324

x = 324/4

x = 81

So x is the first number = 81

And the second is x + 2 = 81 + 2 = 83

So the 2 numbers are 81, 83

Lets check!

3 times the bigger number = 83 x 3 = 249

We will add it to 81 and we will get 330

So, 249 + 81 = 330

So the answer is right

what percent of a is b

Answers

Answer:

I didn't receive enough information about this, but I hope this helps?

Step-by-step explanation:

A 50%?

B 50%?

This problem needs more information.  :3

To answer this, we’d need specific numbers, but the basic concept can be explained.

to solve this problem, you need to multiply b by 100 and divide by a.

6 ft
x ft
8 ft
12 ft

Answers

Answer:

576?

Step-by-step explanation:

I think...

-5x2y - 3x4
What’s the answer
You have to multiply properties of exponents and simplify it

Answers

Answer: -2x(5y+6)

Step-by-step explanation:


Juanita has 70 toy cars. 40% of the cars are blue.
How many cars are blue?

Answers

Answer:

28

Step-by-step explanation:

70×40% = 28

hdhxjsjcjsx

Answer:

28

Tell me if I am wrong. :) Hope it helps!

Step-by-step explanation:

ANSWER NOW AND YOU GET 20 and ill answer one of ur questions

Answers

Answer:

300 gallons per hour.

Step-by-step explanation:

It takes 4 of 1/4 hours to make 1 hour. Now multiply gallons per quarter hour by four.

75 x 4 = 300

2x+3y=4 y+3x=6
find x and y

Answers

Answer:

x=-3/2y+2

y= y=−3x+6

Step-by-step explanation:

solve for x.

2x+3y=4

Add -3y to both sides.

2x+3y+−3y=4+−3y

2x=−3y+4

Divide both sides by 2.

2x/2= -3+4/2

x= -3/2 y+2

solve for y.

y+3x=6

Add -3x to both sides.

3x+y+−3x=6+−3x

y=−3x+6

Can someone help me please

Answers

Answer: A) m = 9, n = 9

==========================================================

Explanation:

This is a 45-45-90 right triangle. Any triangle of this form is isosceles, where the two legs are the same length. In this case, m and n are those two legs. So m = n.

We can then apply the Pythagorean theorem to say

a^2 + b^2 = c^2

m^2 + n^2 = (9*sqrt(2))^2

m^2 + m^2 = 9^2*(sqrt(2))^2

2m^2 = 81*2

m^2 = (81*2)/2

m^2 = 81

m = sqrt(81)

m = 9

As a shortcut, the hypotenuse of a 45-45-90 triangle is equal to sqrt(2) times the length of either leg. If m is the length of the leg, then m*sqrt(2) is the length of the hypotenuse. So in a sense, we take this thought process backwards to go from a hypotenuse 9*sqrt(2) to a leg length of 9.

Math graphing and solution ​

Answers

Step-by-step explanation:

what do you mean bro???????

whatttt you sayyyyyyy

Rewrite the equation 6x – 9y = 12 in terms of y.

Answers

Answer:

Step-by-step explanation:

6x - 9y = 12

subtract 6x from both sides

-9y = 12 - 6x

divide both sides by -9

y = -4/3 + 2/3x

or

y = 2/3x - 4/3

The equation 6x – 9y = 12 written in terms of y is; y = (2/3)x - 4/3

We are required to write the equation 6x – 9y = 12 in terms of y.

Rewriting the equation 6x – 9y = 12 in terms of y is as follows;

6x – 9y = 12

6x - 12 = 9y

Divide through by 9 so that we have;

y = (2/3)x - 4/3

Read More on Change of formula subject:

https://brainly.com/question/9584546

A shoe store buys a shipment of nike shoes that cost $70 each to the purchases. They want to markup their prices for the customers by 30%. How much would the customer pay for a pair of nikes

Answers

Given :

A shoe store buys a shipment of Nike shoes that cost $70 each to the purchases.

They want to markup their prices for the customers by 30%.

To Find :

How much would the customer pay for a pair of Nikes.

Solution :

C.P = $70 .

It is given that selling price is 30% more than the S.P.

So, S.P = C.P + C.P×0.30

S.P = C.P×1.30

S.P = 70×1.30

S.P = $91.

Therefore, the customer would pay $91 for a pair.

Look at the pictures and solve. WILL GIVE BRAINIEST
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match each graph to the equation of its line.

Answers

Answer:

1. y = 4x - 4

2. y = x + 2

3. y = -2x - 4

4. y = -x + 2

Step-by-step explanation:

Slope-intercept form is y = mx+b. As we know, m is the slope and b is the y-intercept. We need to find the slope and y-intercept and put them in the equation. Slope is rise over run, so we just count up then over until we get to an intersection. For the y-intercept, we look where the line crosses the y-axis.

Which three lengths could be of the sides of a triangle?

Answers

Answer:

B

Step-by-step explanation:

how does algebra work im not very good at it

Answers

It doesn’t work you simply make assumptions and trust what an old pale man tells you to do due to our failing school system hierarchy taht damages our mental capabilities

Write the number seven hundred and ninety four in figures

Answers

Answer: 56 785 is written as fifty six thousand, seven hundred and eight five. The number 406 090 is written as four hundred and six thousand and ninety. Numbers with seven, eight or nine digits, are millions. 46 758 442 is forty six million, seven hundred and fifty eight thousand, four hundred and forty two.

Step-by-step explanation:

The number would be 794 in figure form which represents seven hundred and ninety-four.

What is the number system?

A number system is defined as a way to represent numbers on the number line using a set of symbols and approaches. These symbols, which are known as digits, are numbered 0 through 9. Based on the basic value of its digits, different types of number systems exist.

Calculating the number of quantities for an object or the Number of things left in the container are only two examples of the types of mathematical operations that utilize the Number System.

We have to write the number seven hundred and ninety-four in figures

As per the given statement, the expression would be:

⇒ 700 + 94

⇒ 794

Therefore, the number seven hundred and ninety-four in figure form would be 794.

Learn more about the number system here:

https://brainly.com/question/21751836

#SPJ5

work out the product 2 2/3 and 1 5/7
give the answer as a mixed number​

Answers

Answer:

= 3 5/9

Step-by-step explanation:

2 2/3 × 1 5/7

= 8/3 × 12/7

= (8×12) / (3×7)

= 96/27

= 3 15/27

= 3 5/9

2 2/3 × 1 5/7 = 3 5/9

Can 2/16 be simplified

Answers

Answer:

2/16= 1/8 or 0.125

Step-by-step explanation:

prove me wrong

Answer: 1/8

Step-by-step explanation:

1.factor the number:16=2 x 8

=2/2 x 8

2.cancel the common factor:2

=1/8

-2x - 2y =-10 and 9x + 7y = 49

Answers

Answer:

I think it is 49

Step-by-step explanation:

Hope this helped have an amazing day/month/year!

Please help me on this, all help will be appreciated

Answers

U= -1-(-2) = 1
V =-4 -1 = 5
W= -6-(-3)=3

5/8 - 1/16= what’s the answer to this please help

Answers

Answer:

9/16

Step-by-step explanation:

(5/8 * 2/2) - (1/16 - 1/1)

10/16 - 1/16

10-1//16 = 9/16

5/8 - 1/16 = 9/16

(5*16) - (1*8) / 8 * 16

80-8/ 128

72/128

72/8

128/8= 9/16

5/8 - 1/16 = 9/16

What is the interest on Rr 20,000 if the interest rate is 15%?

Answers

Answer: Rr.3,000

Step-by-step explanation:

The interest is the amount that accrues on a principal that was invested or a cost that was incurred.

It is based on a certain interest rate which in this case is 15%.

The principal is Rr. 20,000.

Interest = Principal * Interest rate

= 20,000 * 15%

= Rr.3,000

Mr. Ingram's lunch at a restaurant costs $13.00, without tax. He leaves the
waiter a tip of 17% of the cost of lunch, without tax. What is the total cost
of the lunch, including the tip, without tax?
$2.21
$10.79
$13.17
$15.21

Answers

Your answer would be 15.21 dollars

During a basketball game, Bari scored 28 points. During the same game, Denay scored 1/4 the number of points Bari scored. How many points did Denay scored during his basketball game?

Answers

Answer:

Denay scored 7 points during his basketball game.

Step-by-step explanation:

Given that,

Bari scored 28 points.

During the same game, Denay scored 1/4 the number of points Bari scored.

Denay scored = (1/4) × Bari scored

= (1/4)×28

= 7

Hence, Denay scored 7 points during his basketball game.

Answer:

7

Step-by-step explanation:

An airplane begins decreasing its altitude as it approaches the runway. At time t=1, the pilot notes that he has an altitude of 30,000 feet. One minute later, his altitude drops to 29,450 feet. One minute after that, his altitude drops to 28,900 feet. Assuming this pattern continues, write a recursive formula for the altitude of the plane A(t) after t minutes.(1 point)

A(t)=30000+550(t−1)

A(t)=A(t−1)−550 for t>1, where A(1)=30000

A(t)=A(t−1)+550 for t>1, where A(1)=30000

A(t)=30000−550(t−1)

Answers

4th one btw I was a prospect elite on Brainly but I got banned

Answer: i think A(t)=30000−550(t−1)

Step-by-step explanation:

ago
7
.
15
6
7
10. Which of the following could be the
perimeters of the three squares below?
A. 12 ft, 16 ft and 20 ft
B. 20 ft, 16 ft and 24 ft
C. 40 ft, 80 ft and 120 ft
D. 16 f1, 24 ft and 28 ft
Maneuvering the Middle LLC, 2017

Answers

Answer:

where are the squares?

Step-by-step explanation:

Melanie works at a frozen yogurt stand after school. The stand sells fruit and yogurt smoothies for $3.00 each and soft-serve cones for $2.00 each. On a hot summer day, the stand sold 12 more smoothies than soft-serve cones for total sales of $206. Which of the following systems of equations could be used to find s
s
, the number of smoothies, and c
c
, the number of cones the shop sold that day?

Answers

Answer:

3s+2c=206

s=c+12

Step-by-step explanation:

3.00(smothies,s) + 2.00(cones,c) = $206 (total)

s,smoothies = c,cones + 12

is y=x-6 linear????????

Answers

Answer:yeA

Step-by-step explanation:

Yea

Answer:

yes

Step-by-step explanation:

Y=Mx + b is linear and in this case we have Y= 0x - 6 or Y=0x + (-6).


Circle the "best buy."
4 for $1.50
35 cents each
6 for $2.00

Answers

depends on how much you are purchasing

What is the value of the function when x = 3?



y =

Answers

Answer:

9, plug 3 in for x and multiply 3(3)

Can someone explain to me how I can find the domain and range of a rational graph?
example:

Answers

Answer:

no but try socratic

Step-by-step explanation:

it will help very much;)

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