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3 years ago

Hi hello! please help me.

Mathematics

2 answers:

Simora [160]3 years ago

8 0

Answer:

x= -4

Step-by-step explanation:

hope it's helpful to you

Darya [45]3 years ago

6 0

Answer:

A) x= -4

Step-by-step explanation:

To solve you must isolate the variable. Do this by using the properties of equality to subtract and divide numbers from both sides of the equation. First, subtract 8x to move all x terms to the right side.

-48=12x

Then, divide both sides by 12

-4=x

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AlexFokin [52]

I believe that the answer is 3

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3 years ago

Tim throws darts at a dartboard that has numbers one through 20 in a bull’s-eye in the middle. 10 throws a dart 50 times, and he

Lesechka [4]

Answer:

D.) 1/5

Explanation:

Experimental probability is the ratio of the number of successes to the number of trials.

In this case, success is a bulls-eye. Tim had 10 bulls-eyes. The total number of trials is 50. This makes the experimental probability 10/50, or 1/5.

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4 years ago

Read 2 more answers

Need help with ixl please give right answer fill in the blanks please if 2 answer give same answer best explanations will get br

miss Akunina [59]

The equation of line that has slope 8 and passes though (2,7) is: $y=8x-9$

Step-by-step explanation:

Given

Slope of line = 8

passes through (2,7)

Equation of line in slope-intercept form is given by:

$y = mx+b$

Putting the value of slope

$y = 8x+b$

Too find the value of b, putting (2,7) in the equation

$7 = 8(2) + b\\7 = 16+b\\b = 7-16\\b = -9$

Putting b=-9 int he equation

$y=8x-9$

Hence,

The equation of line that has slope 8 and passes though (2,7) is: $y=8x-9$

Keywords: Equation of line, slope

Learn more about equation of line at:

#LearnwithBrainly

3 0

3 years ago

In a certain chemical the ratio of zinc to copper is 4 to 15. A jar of the chemical contains 345 of copper how many grams of zin

vekshin1

Answer:

92.

Step-by-step explanation:

By proportion the mass of zinc = (345/ 15) * 4

= 92.

7 0

3 years ago

What is the solution of the system?

Serjik [45]

Answer:

(-13,-4)

Step-by-step explanation:

4x-8y=-20

9x+113=y

Substitute in y for 9x+113

4x-8y=-20

Substitute

4x-8(9x+113)=-20

Simplify

4x-72x-904=-20

Simplify

-68x-904=-20

Additive Prop. of Equality

-68x-904+904=-20+904

Simplify

-68x=884

Isolate the variable(x)

-68x -68x

Simplify

x=-13

Solve for y

9x+113=y

9(-13)+113=y

-117+113=y

-4=y

Check

4x-8y=-20

4(-13)-8(-4)=-20

-52+32=-20

-20=-20

9x+113=y

9(-13)+113=-4

-117+113=-4

-4=-4

8 0

3 years ago