Mathematics High School

how do i solve this
4x-9=7x+12

Answers

Answer 1

Answer:

x = -7

Step-by-step explanation:

4x - 9 = 7x + 12

~Add 9 to both sides

4x = 7x + 21

~Subtract 7x to both sides

-3x = 21

~Divide -3 to both sides

x = -7

Best of Luck!

Answer 2

Answer:

x = -7

Step-by-step explanation:

Combine like terms: (Subtract 4x from both sides, and subtract 12 from both sides)

4x - 9 = 7x + 12

-9 - 12 = 7x - 4x

-21 = 3x

Divide by 3:

-21 = 3x

x = -21 / 3

x = -7

Plug in to check your answer:

4x - 9 = 4(-7) - 9 = -37

7x + 12 = 7(-7) + 12 = -37

Related Questions

show me a graph of a linear function
​

Answers

This is one :) here you go

A number Decreased 23 is 44. Find the number
Which equation can be used to solve this problem?

A) x - 23 = 44
B) 23 - X = 44
C) x - 44 = 23
D) 44 - x = 23

Answers

Answer:

let the number be x

therefore X - 23 = 44 which is A

Using the diagram below, find the measure of each indicated angle.

Answers

Answer:

a= 140 b=140 c= 40 d= 140

Step-by-step explanation:

a b and d are congruent to the given angle and d is supplimentary to c so 140 +40 = 180

Find the other endpoint of the line segment if:
midpoint: (-10, -6) and one of the endpoints is: (-5, 4)

Answers

Answer:

( - 15, - 16 )

Step-by-step explanation:

Coordinates of midpoint are ( [tex]\frac{x_{1} +x_{2} }{2}[/tex] , [tex]\frac{y_{1} +y_{2} }{2}[/tex] )

( - 5 + x ) / 2 = - 10 ⇒ x = - 15

( 4 + y ) / 2 = - 6 ⇒ y = - 16

( - 15, - 16 )

10.6575
Rounded in whole form

Answers

Answer:

i am pretty sure its 11

Step-by-step explanation:

bc if you look at the nymber next to 0 its .6 and they say 5 and up round UP!!

Answer:

11

Step-by-step explanation:

Rounded to Nearest Whole Number =  

11

Rounded to Nearest Tenth =  

10

Rounded to Nearest Hundredth =  

0

Rounded to Nearest Thousandth =

0

Need help thank you!

Answers

Answer:

Z is 15 and Y is 7.5

Step-by-step explanation:

Z= 25*.6

Y=12*.6

NEED ANSWER FAST! PLS HELP!


In an arithmetic sequence, the 4th term is 18 and the 5th term is 22. What is the first term?​

Answers

Answer:

HI MATE,

Step-by-step explanation:

THE ANSWER IS 6

what is the 12% of 60?

Answers

Answer:

7.2

Step-by-step explanation:

i saw on google...

Answer:

7.2 if needed round 7.20

Step-by-step explanation:

60 x 12%

7.2

If f(x) = 1/4x - 5 then find the value of f(12)

Answers

Answer:

f(12)=-2 because all you do is put 12 in for x so your equation is f(12)=1/4(12)-5

Help me you guys I will apprecaite

Answers

I think your answer would be 14 if this is what it’s asking for
Because 6/6 makes 1 so 13+1 is 14



which inequality is shown above

Answers

Answer:B

Step-by-step explanation:

Starts on 2 next pt is down 1and 2right

And its shaded below the line < and solid line less than or equal too

< _ with line underneath the <

Answer:

B

Step-by-step explanation:

SOMEONE PLEASE GIVE ALL THE ANSWERS I WILL GIVE ALL MY POINTS

Answers

Answer:

This is so cool.

Step-by-step explanation:

Oh my god.

A

Step-by-step explanation:

You jog 2 kilometers in 12 minutes. Your friend jogs 3 kilometers in 16.5 minutes. Who jogs faster? You jog faster. Your friend jogs faster. Question 2 How much sooner will the faster jogger finish a five-kilometer race?

Answers

Answer:

a) Who jogs faster?

Your friend jogs faster because he jogs with a speed of 10.91 km/hr

Step-by-step explanation:

Speed = Distance(km)/Time(hours)

Question 2 How much sooner will the faster jogger finish a five-kilometer race?

Your friend's will finish a 5km race at a speed of 18.18 km/hr

Your speed is :

You jog 2 kilometers in 12 minutes.

Convert 12 minutes to hours

60 minutes = 1 hour

12 minutes = x

x = 12/60

x = 1/5 hour

Your speed is calculated as:

2km/1/5hour

= 2 km ÷ 1/5 hour

= 2 × 5

= 10 km/hr

Your friend's speed is calculated as:

Your friend jogs 3 kilometers in 16.5 minutes.

Convert 16.5 minutes to hours

60 minutes = 1 hour

16.5 minutes = x

x = 16.5/60

x = 0.275 hour

Your speed is calculated as:

3km/0.275 hour

= 10.909090909 km/hr

Approximately = 10.91km/hr

a) Who jogs faster?

Your friend jogs faster because he jogs with a speed of 10.91 km/hr

Question 2 How much sooner will the faster jogger finish a five-kilometer race?

Your friend jogs faster, hence:

3 km = 10.91 km/hr

5km = x

x = 5 × 10.91/3

x = 18.183333333 km/hr

Your friend's will finish a 5km race at a speed of 18.18 km/hr

Anna has saved $525 for a new flat-screen television. She plans to save an additional $50 per month. An equation that represents her total
savings as a function of the number of months she will save, m, is s(m) = 525 + 50m. Anna wishes to buy a flat-screen television that
costs $1,225, including tax. Which of these statements is true?

s(3) = 1725, so it will take Anna 3 months to save enough to buy the television.

s(14) = 1225, so it will take Anna 14 months to save enough to buy the television.

s(1225) = 61250, so it will take Anna 61,250 months to save enough to buy the
television

There is not enough information to answer the question.

Answers

Answer:

2nd one (14)

Step-by-step explanation:

525+50m=1225  take 525 from both sides

50m=700  divide 50 from both sides

m=14

If will take 14 months to save up the money.

I really Need help FRFR

Answers

Answer:

289

i think

Step-by-step explanation:

I think you just need to multiply the 163 times the 3 and you will get the answer please mark me Brainliest

Answer:

489

Step-by-step explanation:

She uses 489 tiles because you multiply 163 by 3 to get how many tiles she uses in her third design. :) Hope this helps!!

Find the value of f(7).

Answers

Answer: go to 10 the over 7 right im pretty sure

Step-by-step explanation:

Answer:

f(7) = - 5

Step-by-step explanation:

Locate x = 7 on the x- axis. Go vertically down to meet the graph, then read the corresponding value of y on the y- axis.

The y- value is - 5

Thus

f(7) = - 5

What value is equivalent to 3 x 12 ÷ (4 + 2) ?

Answers

Answer:

1/5

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

3  x  12 ÷ (4 + 2)

3 x 12 ÷ 6

36 ÷ 6

therefore the answer is: 6

Help I’m dumb . Plus I suck at math

Answers

Answer:

Yes

No

Step-by-step explanation:

The first question is yes the second one is no...

Math!! Pls help

Which expression is equivalent to x^2 - 4x -45

Answers

Answer:

D

Step-by-step explanation:

x^2-4x-45

(x-9)(x+5)

What two numbers when multiplied make the -45 and when added make the -4?  -9 and +5

I just need this question solved!

Answers

Answer:

m∠A+m∠B = m∠ACD.

m∠A = 56°

m∠B = 97°

Step-by-step explanation:

In this problem, we are given that m∠B is fifteen less than twice the m∠A.

Let m∠A = x°

This means that m∠B = 2x°-15°

Due the exterior angles theorem,

m∠A+m∠B = m∠ACD.

Since we are given that m∠ACD is 153°,

m∠A+m∠B=153°.

x+2x-15=153

x=56°

That means

m∠A = 56°

m∠B = 2(56) -15

m∠B = 97°

Function Q gives a puppy's weight in
pounds as a function of its age in months.
Use function notation to represent the
statement.
When the puppy was a months old, it
weighed w pounds.
O Q(w) = a
O Q(a) = w

Answers

Answer:

[tex]Q(a) = w[/tex]

Step-by-step explanation:

Given

w = weight

a = age

Required

Represent the weight as a function of age

When writing a function.

[tex]y = f(x)[/tex]

means that y is a function of x

Using the above to answer the given question, we have:

[tex]w = Q(a)[/tex]

Which means w is a function of a

and can be rewritten as:

[tex]Q(a) = w[/tex]

Please answer correctly !!!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!

Answers

X=7
10x-2=9x+5
X=7
Lol it says I need more characters to submit this

What is the slope of line that passes through the pair of points (4,7),(7,-2)

Answers

Answer: -3

Step-by-step explanation: Plug the points into rise over run and solve

hope this helps;)

Integers from least to greatest -4 -7 1 0 3 -200
Help fast please

Answers

-200 -7 -4 0 1 3 there

help please i am lost lol only if u know anwser

Answers

Answer:

Step-by-step explanation:

(4/3)^-2 = 9/16  

Since (4/3)^2 is 16/9 you will need to flip it since the power is a negative. Hope this helps.

(ANSWER ASAP) sovle the inequality.​

Answers

Answer:

n < 9

Step-by-step explanation:

Answer:

n < 9

Step-by-step explanation:

how many days cut the Morales family rent a car for it if they choose this rental car company with her estimated budget

Answers

Answer:

4 days

Step-by-step explanation:

55d+15d=70d

70d+35=315

-35=-35

70d= 280

Divide by 70

X=4

convert 0.125 to fraction plz and thank yo

Answers

Answer:

125/1000

Step-by-step explanation:

you reduce this to lowest terms by dividing the numerator and denominator by 125 to get the equivalent fraction 1/8

125/1000 (: thank me later lol

1/3 *1/34 +-67 ......​

Answers

Answer:

-66.9901960784

Step-by-step explanation:

yes

Answer:

-66.9901960784

Step-by-step explanation:

1/3 × 1/34 + (-67)

1/102 - 67

1 - 67 × 102/102

1 - 6834/102

- 6833/102

= -66.9901960784 or -67

Choose the correct translation for the following statement. It is at most ten.

Answers

Answer:

x ≤ 10

Step-by-step explanation:

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