Mathematics High School

3(7 – 2y) = 9

Please help. You have to solve it using distributive property. Thank you.

Answers

Answer 1

Answer:

3(7-2y)=9

Because there is no symbol between the 3 and the "(" we can tell that it wants you to multiply.

With the distributive property you must distribute the 3 within (7-2y)

To that you would multiply 7 by 3, and multiply -2y by 3. This would get you:

21-6y=9

To get y you must isolate it, the first step to isolate it is remove the number with no "y" next to it. Which is "21" Also for further problems your way, You should add/subtract/divide/multiple the number that does not have the same or even a variable as the variable you are trying to find to the other side.

In this case it would be subtracting 21 from the left side and subtracting it to the right side which would give us: 6y=-12

(Because there was already a number with no variable: "9" you will subtract 21 from 9 which is why you get -12).

Next you will further isolate the y by removing the -6. "-6y" means -6 multiplied by y. So you will divide -6 from the left side AND the right side.

-6y ÷ -6 = y ; -12 ÷ -6 = 2

y=2

More tips: When you are moving something to the other side always do the opposite to remove it from one side and move it to the other. Example: -12 + y = 5

You want to move the -12 to the right side. So you need to remove "-12" from the left side by ADDING 12 because -12 + 12 = 0.

Now you simply add it to the right.

Another example: 4y = 8

Because 4y is multiplication (4 times y) you must divide it from each side to isolate the y! : y=2

If you divide a number from the left side, you must also divide it from the right side. If you add a number on the left side, you must also add it on the right side. Same goes for subtraction and multiplication. Think like that!

Step-by-step explanation:

So ya

Answer 2

Answer:

y=2

Step-by-step explanation:

3(7 – 2y) = 9

/3              /3

(7-2y)=3

-7       -7

-2y=-4

/-2  /-2

y=2

Related Questions

Best character in Super Smash Bros

Answers

Answer:

King K Rool and Pokemon Trainer

Step-by-step explanation:

Cuz K Rool thicc so he can tank hits, he has a counter, and has projectiles.

Answer:

Little mac

Step-by-step explanation:

Do not listen to whatever anyone else says, he is the BEST character by far.

A radioactive substance has a half-life of one month, which means that at the end of each month, the level of radioactivity is half the level that it was at the beginning of the month The substance was discovered in the soil
near a high school football field. The table shows the relationship between the radioactivity level found in the soil, r(t)and the number of months since discovery, 2.
2
10
5
25
125
4
Which statement correctly interprets the initial value?

Answers

The level of radioactivity in the soil is decreasing by a factor of 1/2 each month

write an equation of the line in slope intercept form (-1,3) (0,4)​

Answers

Answer:

Your answer is

equation y=x+4

Hope that this is helpful. Tap the crown button, Like & Follow me

01010101010101010100101010100100101010101010010101101001010101101001010100101010101010100000000010101010101010010101010101010101011001001101010101010010101001010100101010110011010010101010101010101011001101010110101010101010110011001010101010101010010110010101010100101010010101010101010101010101010101001010101010010101010110: BINARY CODEEEEEEEEEEEEEEE


number 5 might be kinda of hard too read soory

Answers

Answer:

1. first one

2. there are no solutions that i see

Step-by-step explanation:

Can someone help me out please??​

Answers

Answer:

the 2nd one is the answer.

x ≥ −8

Step-by-step explanation:

Hope that helps

Sorry if wrong

I NEED HELP PLZ
which of the following is not a contributing factor towards Air Pollution?
O
A. Emmisions from the millions of motorized vehicles
O
B. Smoke from factories burning fossil fuels.
C. Dust and other debris from multiple construction projects in each city
D. Sewage being dumped into the local rivers.

Answers

Answer:

I think its the last one because the problem is not air pollution related

-5 Stars

Answer

The answer is d) sewage being dumped in local rivers.

Step-by-step explanation:

That wouldn't be contributing to air pollution, it would be water pollution.

3) You find a jar of quarters on the sidewalk and decide to start collecting them to cash in at the end of the school year.
You are able to find 50 new quarters every week and after 5 weeks you have 350 total quarters.
Write an equation that gives the number of quarters as a function of how many weeks passes.
Need h
Show work
At the end of school (24 weeks) you cash in your quarters. How much money do you have?

Answers

Answer:

I dont rally know

Step-by-step explanation:

try it yourself


The shapes of the horizontal cross-sections of the cone below are not all
congruent.
A. True
B. False

Answers

Answer:

B. False

Step-by-step explanation:

We are given the statement,

'The shapes of the horizontal cross-sections of the cone are all congruent'.

Now, if we cut the cone horizontally, the cross-sectional shape is a 'circle'.

Further, the radius of the circle vary depending on the position form where the cone is cut i.e.

If cut from the top, the circle is approximately equal to a point.

If cut from the middle, the radius of the circle is less than the radius of the cone.

If cut from the bottom, the radius of the circle is equal to the radius of the cone.

Now, 'two figures are congruent if they overlap each other'.

Since, the circles have different radius, they will not overlap each other.

Thus, all the cross-sections of the cone would not be congruent.

Hence, the given statement is false.

Step-by-step explanation:

The solution is, the given statement is B. False.

What is a cross-section of any shape?

A cross-section is a shape formed by cutting a solid (such as a cone, cylinder, or sphere) with a plane. If a cylinder-shaped object is cut by a plane parallel to its base, the resulting cross-section is a circle. As a result, the object intersected.

here, we have,

We are given the statement,

'The shapes of the horizontal cross-sections of the cone are all congruent'.

Now, if we cut the cone horizontally, the cross-sectional shape is a 'circle'.

Further, the radius of the circle vary depending on the position form where the cone is cut i.e.

If cut from the top, the circle is approximately equal to a point.

If cut from the middle, the radius of the circle is less than the radius of the cone.

If cut from the bottom, the radius of the circle is equal to the radius of the cone.

Now, 'two figures are congruent if they overlap each other'.

Since, the circles have different radius, they will not overlap each other.

Thus, all the cross-sections of the cone would not be congruent.

Hence, the given statement is false.

To learn more about the cross-section of the shapes, visit:

brainly.com/question/13028300

#SPJ7

Round 30.599 to the nearest hundredth

Answers

Answer:

30.60

Step-by-step explanation:

Hundredths Place is two places after the decimal point

since 9 is greater than 5 you move up, so 5 turns to a 6

so 30.599 ≈ 30.60

Answer:

30.6

Step-by-step explanation:

the hundredth in 30.599 is the bold since 9 is greater than 9 you will regroup 1 to the tenths place to get 30.6

Jesse measured his height to be 67 inches. His actual height is 68.5 inches. What is the percent error for Jesse's measurem

Answers

Answer:

2.24%

Step-by-step explanation:

Given that :

Actual height = 68.5

Measured height = 67

Percentage error :

(Error value / True value) * 100%

Error = Actual - observed = (68.5 - 67) = 1.5

Percentage error :

(1.5 / 67) * 100%

0.0223880 * 100%

= 2.2388%

= 2.24%

calebs gross income last year was $39,000. he deducted $1,200 for charitable donations and tax-free interest payments and was taxed $2,200. what was his tax rate?

a. 19%
b. 12.6%
c. 28.8%
d. 5.8%

Answers

Answer:

28.8

Step-by-step explanation:

the power of G00GLE

Complete to get an equivalent fraction:
9/c = _____/(3c)

Answers

Since the denominator was multiplied by 3, you have to do the same with the numerator. 9×3 = 27

The first three terms of an arithmetic sequence are as follows. 17,25 , 33 Find the next two terms of this sequence.

Answers

Answer:

the next two terms are 41 and 49

Answer

41, 49

Step-by-step explanation.

17 too 25 is 8 and from 25 too 33 is also 8 so the 4th term is 33+8= 41 and the 5th term is 41+8=49

у — 3x = -1
HELP ASAP THANKS

Answers

Answer:

y = 3x - 1

Step-by-step explanation:

Add  3 x  to both sides of the equation.

y = -1 + 3x

Reorder

hope this helps :)

divide £720 in the ratio 5 : 7

Answers

5+7=12

£720÷12= 60

5:7

5×60=300

7×60=420

300:420

estimate the product of 356 x 67?

Answers

Answer:

24000

Step-by-step explanation:

Answer:

24,000

Step-by-step explanation:

its the closest one to yhe actual figure

Hope I helped!

Evaluate the function
Find g(10) if g(x) = 10x – 8

Answers

Answer:

g(10)=92

Step-by-step explanation:

g(x)=10x-8

To find g(10), substitute x with 10

g(10)=10(10)-8

g(10)=100-8

g(10)=92

I hope this helps!

write the slope-intercept form of the equation of a line with a slope of -5/8 that passes through the point (-14, 6)

Answers

Answer:

y=-5/8x-11/4

Step-by-step explanation:

y-y1=m(x-x1)

y-6=-5/8(x-(-14))

y-6=-5/8(x+14)

y=-5/8x-70/8+6

y=-5/8x-11/4

PLEASE HELP ASAP!!!!!!
WILL GIVE BRAINLIEST!!!!
Plus A FOLLOW!​

Answers

Answer:

b

Step-by-step explanation:already did it

A cyclist travels at an average speed of 20 km/h over a distance of 40 km.
How many hours does it take him?

Answers

Answer:

Given that speed(v) = 20km/h and time(t) = 50 min

We have to find distance (d)

First convert speed into m/s

v = (20*1000m)/(1*3600s)

v = (50/9) m/s

Now convert time into second

t = 50*60 = 3000 sec

As we know that

d = v*t = (50/9)*3000 = 50000/3

d = 16666.67m or 16.67km

Ans: 16666.67m or 16.67km

Step-by-step explanation:

Answer is equal to
16.67gm

(3.65 x 10-5) + (23.8 x 10-6)

I forgot how to do this can someone please help?

Answers

Answer:

263.5

Step-by-step explanation:

Answer:

263.5

Step-by-step explanation:

3.65x10

36.5-5

=31.5

23.8x10

238-6

=232

31.5+232

263.5

Nancy's garden has the dimensions shown. She need to find the area of the garden so she knows how much topsoil to buy.

Answers

Answer:

she needs 12 3/8

Step-by-step explanation:

find the value of x and show how

Answers

Answer:

x≈ 5.4

Step-by-step explanation:

180°-110°= 70°

70° is the measure of the angle represented by 11x+11

set the equation equal to 70°

11x+11= 70°

-11 on both sides

11x= 59

÷11 on both sides

x≈ 5.4

11(5.4)+11≈ 70.4 ≈70

solve the equation -4+4a=12 for a.

Answers

Answer:

4

Step-by-step explanation:

4 x 4 is 16 and then because of the negative you take away 4 so its 12.

Answer:

a=4

Step-by-step explanation:

-4+4a=12

add four to 12

4a=16

divide

24x2+25x−47ax−2=−8x−3−53ax−2

Answers

Answer:

x=0,x=-(2a+11)/8

tep-by-step explanation:

I have a math test today and this is the only question I didn’t really understand-

Answers

Answer:

you cant put test questions on here

Step-by-step explanation:

7.
Which expression is equivalent to
20x2 - 1) + 3x(1-4)? (Unit 6)

Answers

Oh yeah I have to get

6 is 15% of what? plz help me

Answers

Well 6 divided by 0.15 is 40 so it’s 15% of 40
40 I believe :)))))))))))

find lowest common denominator write the equivalent fractions 2/5 and 1/10

Answers

Answer: 4/10 = look below for explanation

Step-by-step explanation:

Transform 2/5 into the same demononator

= 2/5 becomes 4/10 because you've multiplied 2x2 and 5x2

which becomes 4/10 and 1/10

to solve: 4/10 - 1/10 = 3/10

Which represents a possible solution set for the inequality 3/10<10

Answers

Answer:

3/10<10

Step-by-step explanation:

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