what is a way that i can get 3x and 2x to cancel out in this problem? i need to get - 5y = -13 and + 15y = -3 alone.

problem:
3x + 5y = -13
2x + 15y= 3

What Is A Way That I Can Get 3x And 2x To Cancel Out In This Problem? I Need To Get - 5y = -13 And +

Answers

Answer 1

Answer:

For 3x + 5y = -13 the answer is x= -13/3 + 5y/3

and for 2x + 15y=3 the answer x= 1.5 + (-15y/2)

Step-by-step:

For 3x+5y=-13 you have to add 5y on both sides. Then you have to divide by 3 on both sides and cancel out the common factor of 3. Then you would get x= 13/3 + 5y/3.

For 2x + 15y=3 you have to subtract 15y on both sides of the equation. You should have 2x=3 + (-15y). Then divide by 2 on both sides. 3 divided by 2 is 1.5 and -15y divided by 2 is -15y/2 since 2 doesn't have the same variable. so the answer should be x= 1.5 + (-15y/2).


Related Questions

A right triangular prism has a base with perimeter 12 cm and area 6 cm2.

a) Find the whole-number dimensions of the base.

Answers

Answer:

12 cm is the answer of this question

12 cm is the answer

Negative X plus negative one equals 3X plus -5 what is X

Answers

If this is the equation

-x-1=3x-5

then it should be x=1

PLEASE PLEASE HELP!!!!


Which of the following organ systems is paired correctly with its function?

A.) digestive system: exchanges gasses with the environment
B.) skeletal system: moves oxygen and nutrients throughout the body
C.) excretory system: rids the body of waste
D.) nervous system: secretes hormones that regulate activities

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Answer:

this shouldnt be in math but the answer is c

Step-by-step explanation:

2.
What is the slope of the line whose equation is
y = 2x - 102
A
B. 2
C. 5
D. - 10

Answers

Answer:

2

Step-by-step explanation:

y=mx + b where m is the slope.

m = 2 in this instance.

So the slope is 2.

Answer: btw is B

Step-by-step explanation:

if Paula used 134 cups of flour for a recipe. How many cups y of flour did Paula have if she had x cups before making the recipe? Write an equation to represent the situation.

Answers

Answer:

If helpful, please mark as brainliest!  =)

Step-by-step explanation:

y=x-1 3/4 all you have to do is subtract the amount used (1 3/4) form the starting amount (x)

John receives $9,500 per month after tax. If his annual gross salary is $120,000, How much does he pay in tax per year?

Answers

John pays $6000 a year in taxes

Hope this helpfully......

but if it's not,im so sorry

1. Find the area of the shaded sector.
2. Find the length of the arc defined by the sector.

Answers

Answer:

1. 150π sq.ft  2. 10π ft

Step-by-step explanation:

Part 1

Equation: Area of a sector = [tex]\frac{x}{360}[/tex] × π[tex]r^{2}[/tex]

Where:

x = internal angle

r = radius of circle

Values from problem:

x = 60

r = 30

Plug values into equation:

Area of sector = [tex]\frac{60}{360}[/tex] × π[tex]30^{2}[/tex]

Simplify:

60 divided by 30 equals [tex]\frac{1}{6}[/tex] and 30 squared equals 900 so...

[tex]\frac{1}{6}[/tex] × 900π

900π divided by 6 equals 150π so...

[tex]\frac{900}{6}[/tex] × π = 150π

150π sq. ft

Part 2

Equation: Arc length = [tex]\frac{x}{360}[/tex] × 2πr

Where:

x = internal angle

r = radius of circle

Values from Problem:

x = 60

r = 30

Plug values into equation:

Arc length = [tex]\frac{60}{360}[/tex] × 2π30

Simplify:

60 divided by 360 equals [tex]\frac{1}{6}[/tex], and 2π × 30 equals 60π so...

[tex]\frac{1}{6}[/tex] × 60π

60π divided by 6 is 10π

[tex]\frac{60}{6}[/tex]π = 10π

10π ft

Pleases help with 4-9!

Answers

Step-by-step explanation:

The answer is

4_

[tex]m = \frac{4 - 0}{0 - ( - 2)} = \frac{4}{2} = 2[/tex]

9_

[tex]m = \frac{3 - 0}{0 - 4} = \frac{ - 3}{4} [/tex]

Please help, I would appreciate it thank you :)

Answers

Answer:

HERE IS YOUR ANSWER FRIEND,HOPE IT HELPED YOU,PLEASE MARK ME AS BRAINLIST

Which expression is equivalent to 6(7x – 4)?
Group of answer choices

42x - 4

42x - 24

13x - 4

7x - 24

Answers

[tex]\huge\text{Hey there!}[/tex]

[tex]\bold{Equivalent\ to: 6(7x -4)}[/tex]

[tex]\bold{FIRST\ you\ have\ to\ DISTRIBUTE}[/tex]

[tex]\bold{Formula\downarrow}\\\bold{a(b+c)}\\\bold{a(b)+a(c)}\\\bold{=\underline{ab+ac}}[/tex]

[tex]\bold{6(7x-4)}\\\bold{6(7x)+6(-4)}\\\bold{6(7x)=42x}\\\bold{6(-4)=-24}\\\bold{\underline{42x-24}}\\\\\boxed{\boxed{\bold{Answer: \large{\text{\bf{B. 42x - 24}}}}}}\huge\checkmark[/tex]

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

expand 2x(5x-2)
answer needed asap

Answers

Answer:

10[tex]x^{2}[/tex] - 4x

Step-by-step explanation:

Answer:

10x^2-4x

Step-by-step explanation:

If X + 3Y = 5 and 2X - Y = 3, then X is equal to

Answers

Answer:

X=2

Y=1

That's the answer

Simplify the ratio 30:45​

Answers

Answer:

2:3

Step-by-step explanation:

Here is the math to illustrate better:

30/15 = 2 and 45/15 = 3

Thus, 30:45 ratio simplified is 2:3

Answer:

2/3

Step-by-step explanation:

There 2 ways:-

The simple way in 2 steps

1.divide  by 5

2. then divide by 3

The complicated way is to divide by 15

Find the Y intercept of the following quadratic function.​

Answers

Answer:

The Y-intercept is 6

Step-by-step explanation:

A student is conducting a probability experiment and wants to know the total number of outcomes for the experiment. The student's experiment is comprised of three events
• rolling a six-sided number cube • •flipping a coin
• rolling a six-sided number cube again

How many outcomes are possible in this experiment?

A. 14
B. 24
C. 72
D. 38​

Answers

Answer:So to get a 6 when rolling a six-sided die, probability = 1 ÷ 6 = 0.167, or 16.7 percent chance. So to get two 6s when rolling two dice, probability = 1/6 × 1/6 = 1/36 = 1 ÷ 36 = 0.0278, or 2.78 percent.

Step-by-step explanation:

Answer:

C.72

Step-by-step explanation:

rolling a six-sided number cube(6) x flipping a coin(2) x  rolling a six-sided number cube again(6)= 72

6x6= 36

         36 x 2 = 72

6x2=12

12 x 6 = 72

What is the value of p?

Answers

Answer:

[tex]22\sqrt{2}[/tex]

Step-by-step explanation:

This is a 45-45-90 triangle and the side lengths are in the ratio [tex]p : p : p\sqrt{2}[/tex]. Given that the hypotenuse is [tex]44[/tex], [tex]p\sqrt{2} = 44[/tex] and [tex]p = 22\sqrt{2}[/tex].

b the answer is b i have to keep writing but i think it’s b

12. A circle has a center at C(2,5) and a point on the circle has coordinates A(8, 13). Could the point B lie on
the same circle if lies at B(9.1)? Justify.

Answers

Answer:

No.

Step-by-step explanation:

A circle is defined as a figure in which all points are equidistant from the center, or C.  In order to determine how far points A and B are from the center, we must first find the difference in positioning from (2,5) to each point and then use Pythagorean Theorem to calculate the length of the hypotenuse.  Point A establishes that the radius of the circle must be 10 units, and Point Bis only about 8 units away.

How many roots or zeros does the equation
f(x) = 5x4-8x3+4x2-6x+3 have?

Answers

Answer:

4

Step-by-step explanation:

Because it's degree is 4

Answer:

4

Step-by-step explanation:

How many roots or zeros does the equation

f(x) = 5x4-8x3+4x2-6x+3 have?

Answer = 4

MORE KHAN ACADEMY! HELP ME PLEASE!

6/3+(-1/6)=?

Answers

Answer:

[tex]1\frac{5}{6}[/tex]

Step-by-step explanation:

6/3 + (-1/6) = 2 + (-1/6) = 2 - 1/6 = [tex]1\frac{5}{6}[/tex]

Answer:

If these are fractions the answer is 1 5/6

If they are not fractions the answer is 1.83

19% of 288 i need help

Answers

Answer:

54.72

Step-by-step explanation:

multiply 19% by 0.01multiply 0.19 by 288

19·0.01=0.19

0.19·288=54.72

Therefore, 19% of 288 will be 54.72.

Answer:

54.72

Step-by-step explanation:

% = per cent or per 100 so 19% can be written as 0.19

288 * 0.19 would get you 54.72

Suppose y varies directly with x, and y=98 when x=14. Write the direct
variation equation that relates x and y.

Answers

Answer:   y = 7x

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

Explanation:

Since y varies directly with x, this means y = kx for some constant k.

Plug in y = 98 and x = 14 to solve for k

y = kx

98 = k*14

98/14 = k

7 = k

k = 7

Therefore, y = kx updates to y = 7x which is the equation we're after.

Answer:

y = 7x

Step-by-step explanation:

The general formula for direct variation is y = kx, where k is the constant of proportionality.  If y = 98 when x = 14, then k must be 98/14. or 7, and so

y = 7x is the desired direct variation equation.

The radius of a circle measures 12 centimeters.
What is the circumference of the circle?

Answers

Answer:

C=24π

Step-by-step explanation:

C=2πr

C=2π12

C=24π

≈75.39

how do I find the domian in exponential function

Answers

Answer:

For any exponential function, f(x) = abx, the domain is the set of all real numbers. For any exponential function, f(x) = abx, the range is the set of real numbers above or below the horizontal asymptote, y = d, but does not include d, the value of the asymptote.

Hope it helps!!!!

How would you solve for this problem. The line is parallel to the line y=1/2x +5 and passes through (2,-5).

Answers

Answer:

is 5.8

Step-by-step explanation:

i do it in a calculador so is 5.5

Answer: y=1/2x+5 because it passes through 2,-5 and is parallel to y=1/2x+5  

1. Find the slope of the line that passes through the points (9, 7) and (2, 9).
11
16
7
2
2
-7
7
2

Answers

Answer:

Step-by-step explanation:

Slope of line passing through (x₁, y₁) and (x₂, y₂) = (y₂-y₁)/(x₂-x₁)

Slope of line passing through (9, 7) and (2, 9) = (9-7)/(2-9) = -2/7

Answer:

The slope is [tex] - \frac{2}{7} [/tex]

_

Step-by-step explanation:

☆Remember: [tex]m =  \frac{y_2 - y_1}{x_2 - x_1} [/tex]

---

☆We need to find the slope . So just plug in according to the slope formula!

[tex]m =  \frac{9 - 7}{2- 9} = \frac{ \: \: 2}{ - 7} = - \frac{2}{7} [/tex]

---

▪Happy To Help <3

Information is given about a polynomial f(x) whose coefficient are real numbers. Find the remaining zeros of f.

Degree 3; zeros: -2,4-i

Please help!

Answers

Answer:

Remaining zeros x= 4+i

Step-by-step explanation:

since complex roots always occur in conjugate pairs.

so if one root is 4-i the other one will be 4+i

(2+3) (4-1) simplify

Answers

Step-by-step explanation:

Given

(2+3) (4-1)

= 5 * 3

= 15

Hope it will help :)

Answer:

15

Step-by-step explanation:

(2+3) (4-1)

(5) (3)

15

How do you write 35/5 as a percentage

Answers

Answer:

700%

Step-by-step explanation:

35/5=7

7.00

35/5 as a percentage is 700%

1) Calculate fraction's value.

2) Multiply that number by 100.

3) Add the percent sign % to it.

7 × 100/100 =

(7 × 100)/100 =

700/100 =

700%

What is the range of the function graphed below?

Answers

Answer:

um function

Step-by-step explanation:

3rd

bubble

?

A spinner is divided into sections of equal size, some of which are red, some are blue, and the remaining are green. The probability of the arrow landing on a red section is 40%. The probability of the arrow landing on a blue section is 25%.

What is the probability of the arrow landing on a green section?

Group of answer choices

35%

65%

25%

50%

Answers

Answer:

35%

Step-by-step explanation:

X=the probability of the arrow landing on a green section.

Equation:

40+25+ x = 100

65 +x = 100

(65-65) + x = 100-65

X= 35

Hope this helps!

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