Mathematics High School

solve 10 X + 8 / 2 X + 7 is equal to 4 ​

Answers

Answer 1

Answer:

x = 10

Step-by-step explanation:

[tex] \frac{10x + 8}{2x + 7} = 4[/tex]

or, 10x + 8 = 4(2x + 7)

or, 10x + 8 = 8x + 28

or, 10x - 8x = 28 -8

or, 2x = 20

or, x = 20/2

or, x = 10

x = 10

Related Questions

If you bought a stock last year for a price of $68, and it has gone down 6.5% since
then, how much is the stock worth now, to the nearest cent?

Answers

(1 - 0.065)= 0.935
0.935 * 68 = 63.58
The answer is $63.58

Sam is saving for a guitar. He already has $50 saved and intends to save $30 each week. At week 12, how much money will Sam have saved?

Answers

Answer:

$50 + ($30 x 12) = $410

Step-by-step explanation:

Answer:

$410.00

Step-by-step explanation:

-10,20,-40 what are the next two terms

Answers

Answer:

80

Step-by-step explanation:

10+10= 20

20+20=40

40+40=80

Answer:

80, -160

Step-by-step explanation:

Each term is being doubled and the sign is reversing for every term. So -10 doubled and flipping the sign results in 20. Doubling 20 and flipping the sign results in -40. So on and so forth.

which equation represents the area,y, of the trapezoid​

Answers

Answer:

C.  y =  x^2 + 4x.

Step-by-step explanation:

Area of a trapezoid = (h/2)(a + b)   where h is the altitude and a and b are the lengths of the parallel sides.

So here

Area y  = (x/2)(8 + 2x)

= 8x/2 + 2x^2/2

= 4x + x^2.

Not sure how to do number 14. Would like some help please.

Answers

Answer:

6x+y = 25

3x=14

=> x=14/3 => y = 25/6x = 25/28

Step-by-step explanation:

please help. thanks.

Answers

17 I think might be wrong cuz I suck at this

Some one help me please

Answers

I think the answer is 6t=9

If a plant is planted and starts its height at 3 in and grows 2 in every week. when will the plant be 60 in tall?​

Answers

Answer:

28.5 weeks

Step-by-step explanation:

First, subtract 3 from 60:

60 - 3

= 57

Then, divide this by 2:

57/2

= 28.5

So, the plant will be 60 in tall after 28.5 weeks

Subtract 3 from 60
Which equals 57
Then divide 57 by 2 which equals
28.5 weeks

If p(x)=x+2, find p(x) when x=28.

Answers

Answer:

P=30

Step-by-step explanation:

Definition of substance abuse​

Answers

Answer: overindulgence in or dependence on an addictive substance, especially alcohol or drugs.

overindulgence in or dependence on an addictive substance, especially alcohol or drugs

Write an equation of the perpendicular bisector of the segment with endpoints
(−1, −5) and (3, −1).
Please do it on paper if possible then put the picture in.

Answers

Answer:

y = -1/2x + 5/2

Step-by-step explanation:

Mid-point = ((-1 + 3) / 2 , (-5 + -1 )/ 2)

= (1 , -3)

Gradient = (-1 - -5 )/(-3 - -5)

= 2

m1_ = -1/2

y = mx + b    ( we have to find b)

y = -1/2 x + b     (we will use mid point x = x and y = y)

-3 = -1/2 (1) + b

-3 = -0.5 + b

b = -3 + 0.5

b = -5/2

so,

y = -1/2x + 5/2

please help me ill mark you brainliest and please show your work so i can write it down

Answers

Answer:

fourth answer must be correct

(4)

1---A bakery sells cupcakes for $4.45. They have a special sale on St. Patrick's Day and all cupcakes are 42% off. How much would you pay for a cupcake? Show your work

2---A tv costs $215 and has a 30% increase. What is the amount of increase? Show your work!

3---A new video game costs $35. It's currently marked down by 16%. What is the sale price of the item? Show your work!


plz answer these 3 questions right and with work shown. i well give brain list to the best answer. plz hurry

Answers

Answer:

i answered these eaarlier and you still never gave me my answer

Step-by-step explanation:

if the side lengths are 9, 12, and 15, is this a right triangle?

Answers

Yes it is, answer is letter C

The White Rabbit is multiplying 23 x 17. He says the answer is going to be greater than 17. Do you agree with him or disagree with him? Explain why.

Answers

Answer:

I agree with him.

Step-by-step explanation: 23 x 17=391

Question 5 options:
x + 9 = 29
x=
Please solve for x.

Answers

answer is 20
20+9=29
x= 20
X=20 you subtract the 9 to the 20

brainliest?! plzzzzzzzzzzz

Answers

Answer:

F

Step-by-step explanation:

she spins it 2 times and there's 4 different spinners on the board

there's 1 * on the board so

* = 1/4

there's 1 & on the board so

& = 1/4

its 1/4 for both

so 1/4 + 1/4 = 2/8 or .25

2/8 = 1/4

Answer:

f

Step-by-step explanation:

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Answers

Answer:

B. both the median and interquartile range of math is larger than science

Step-by-step explanation:

Math: 41, 82, 87, 88, 90, 93, 94, 94, 99

Median: 90

Interquartile range: 9.5

Science: 71, 75, 75, 77, 78, 79, 79, 81, 82

Median: 78

Interquartile range: 5

Jessica is shopping for a new car. She found a blue car that has a 12-gallon gas tank and can go 384 miles on one tank. She found a silver car that has a 14-gallon gas tank and can go 504 miles on one tank. Which car gets better gas mileage?

Answers

Answer:

Silver car

Step-by-step explanation:

It seems pretty hard but it's actually REALLY easy. gas mileage means the number of miles you can go on a particular amount of gallons. But the gallons have to be the same for both cars so that it's fair.

so let's go with 10 gallons. pretty broad number right?

so to get 12 gallons(the gallons for the blue car) to 10, We divide it by 12 then multiply it by 10. Try it yourself, (12/12)*10=???

then we do that to 384 (the miles for the blue car)

(384/12)*10=320

so 320 is the mileage for the first car. Repeat the steps for the silver car!

(14/14)*10=10

so then: (504/14)*10= 360.

So which is bigger, 320 or 360?

360 is bigger, meaning it has better gas mileage.

help?
Q1 Given the following data: 18, 47, 51, 60, 72, 75, 80
Find Q1 =

Answers

Answer:

47

Step-by-step explanation:

Q1 is half the first half of the data

18, 47, 51, [60], 72, 75, 80

^center, (Q2)

^Q1


[tex]( \frac{8}{11}) {}^{7 - 2 \times 3 - 1} [/tex]
find the answer​

Answers

Answer:

1

Step-by-step explanation:

[tex](\frac{8}{11})^{7- 2*3 - 1} = (\frac{8}{11})^{7- 6 - 1}\\\\=(\frac{8}{11})^{7- 7}\\\\=(\frac{8}{11})^{0}\\\\=1[/tex]

A yard has a perimeter of 168 feet. If times the length of the yard equals seventeen times the​ width, what are its​ dimensions?

Answers

Answer: See Explanation

Step-by-step explanation:

Your question isn't complete but let's reframe it as:

A yard has a perimeter of 168 feet. If four times the length of the yard equals seventeen times the width, what are its dimensions?

Therefore, 2L + 2W = 168 ....... i

4L = 17W ........ ii.

From equation ii,

L = 17W/4 ........ iii

We would then slot the value of L into equation i

2L + 2W = 168

2(17W/4) + 2W = 168

17W/2 + 2W = 168

17W + 4W = 336

21W = 336

W = 336/21

W = 16

Since L = 17W/4

L = (17 × 16)/4

L = 68

The dimensions are 16 feet and 68 feet

Jack has 30 sweets he shares his sweets with his friend when he gives his friend a sweet he has two for himself how many sweets do they each have

Answers

Answer:

15

Step-by-step explanation:

This is the picture...

Answers

Step-by-step explanation:

i) 4(3y+2)= 12y + 8

j)5(2p-1)= 10p - 5

k)3(7a+2)=21a+6

l)9(2x-5)=18x-45, sorry after this I'm just going to write the answer.

m) =20+15t

n) =63-14c

o) =24w+8

p) =9-36p

q) =22k-55

r) =120a+100c

s) =45w-21

t) =27-6a

Determine this one algebraically

Answers

Answer:

x = 5

y = 5

Step-by-step explanation:

In this question you need to solve one equation in order to plug the value into the second one and solve it as well. Lets start with the top one...

2x - x = 5

1x = 5

x = 5

Now we plug that value of x into the second equation

4x - 2y = 10

4(5) - 2y = 10

20 - 2y = 10

-2y = -10

y = 5

Finally, we can see that both x and y have a value of 5.

2/5 meters converted to centimeters

Answers

The answer in centimetres is 250cm

-3,-1 After 4 units right and 7 units up

Answers

Answer:

(1,6)

-3 + 4 = 1

-1 + 7 = 6

For questions 7 - 12, solve the problem, expressing your answer using the correct number of
significant figures.

Answers

Answer:

93.1

24.83

24.13

2755

12.75

0.151

Step-by-step explanation:

Given :

21.1 + 45.99 + 26.0 = 93.09

15.55 + 21.61 - 12.333 = 24.827

14 + 0.8 + 9.33 = 24.13

14.5 * 190 = 2755

5.1 * 2.5 = 12.75

0.15 ÷ 0.991 = 0.151

Find the value of x in the triangle

Answers

X=14 this was easy ggvvhbbbn jkjk. jon.
X=14 is your answer to the question:)

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Answers

Answer:

the answer is 21

Step-by-step explanation:

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