Mathematics High School

Can someone help me?

Can Someone Help Me?

Answers

Answer 1

Answer: m=−3

Step-by-step explanation: −40−2(3m+1/2)=7m−2

−40+(−2)(3m)+(−2)(1/2)=7m+−2

−40+−6m+−1=7m+−2

(−6m)+(−40+−1)=7m−2

−6m+−41=7m−2

−6m−41−7m=7m−2−7m

−13m−41+41=−2+41

−13m/−13=39/−13

m=−3

What mistake I guess Keith did make is he subtracted 2 from -39 which equaled to -37 which caused him divide -37 by 13 when it should have been 39 divided by 13 because he should have left 39 alone and not have subtracted 2 from it also it should not have been negative basically what I'm trying to say is that he did his division and subtraction wrong.

 

Answer 2
m = -3, hope it was helpful! :)

Related Questions

A point at (0, 9) can be reflected across the y-axis. true or false
​

Answers

Answer:

true

Step-by-step explanation:

PLEASE HELP!! WILL GIVE BRAIN AND FIVE STARS

Answers

Given:-

HM = 2x+5 FM = X+8 HF = 3x+2 perimeter (∆HFM) = 51 units

To find:-

whether ∆ HFM is congruent to ∆FMK

Solution:-

:[tex]\implies[/tex] perimeter (∆HFM) = HM+FM+HF

:[tex]\implies[/tex] 51 = 2x+5+x+8+3x+2

:[tex]\implies[/tex] 51 = 6x+15

:[tex]\implies[/tex] 36 = 6x

:[tex]\implies[/tex] x = 6 units.

in ∆HFM,

HM = 2x+5 = 2(6)+5 = 12+5 = 17units FM = X+8 = 6+8 = 14 units HF = 3x+2 = 3(6)+2 = 20 units

in ∆KFM,

FM = 14 units KF = 4x-3 = 4(6)-3 = 21 units MK = 3x-1 = 3(6)-1 = 17 units

Since, all the sides of one triangle does not correspond to the other, these traingles are not congruent.

Hope it helps ⭐⭐⭐

HELP WILL GIVE BRAINLIEST!!! Solve for x

Answers

Answer:

x=32

Step-by-step explanation:

180-122=58

58+90+x=180

148+x=180

32=x

Help! Sorry if it’s hard to see it would not look different everytime I retook the picture! :)

Answers


Answer:

d = 11.401754

For:
(X1, Y1) = (5, 4)
(X2, Y2) = (-4, -3)


Distance Equation Solution:

=√ (-4−5)2+(−3−4)2

=√ (-9)2+(−7)2

=√ 81+49

=√ 130

=11.401754

The table below represents a function. Which of the following equations could be its function rule?

Answers

Answer:

it's the 3rd choice, Y= -3x

In WXY y=3.6 w=6 and X=147

Answers

Answer:

[tex]wxy = 6 \times 147 \times 3.6 \\ = 3175.2[/tex]

Which number is not an integer? Select all that apply.
1.33
a.
b. -7
c.
d. 4
e. O
f. -1.63

Answers

Answer:

A and 1.33 and -1.63

Step-by-step explanation:

A integer is a whole number, it's either positive or negative.

Dario is finding the percent of change from the original price of $75 to new price of $125.

Answers

Answer:

66.66666% increase (6 goes on forever, can be rounded to 66.67%)

Step-by-step explanation:

The change is 125 - 75 = 50, so it increased by 50/75 = 2/3 = 0.666666... = 66.6666%

How long will it take for $1,000 to double at a simple interest rate of 5.5%

Answers

Answer:

12.63

Step-by-step explanation:

A loan of $25,000 has an annual simple interest rate of 5.5%. The total cost of the loan is $38,750.
How much total interest will you pay?

How long does it take to repay the loan?

Answers

You will pay about $134407323


Step by step explanation;

Solve the equation for the red variable

Answers

i think c = p+ r because you firstly have to rearrange the equation so that you isolate the -c. which means you get -c = p-r because you have to change the sign of the r when you switch it. so -c = p-r, but to find c that isn’t minus you need to change the sign on both sides. therefore, the answer should be c = p+r.

Find the measure of

Answers

Answer:

m∡GHI = 21°

Step-by-step explanation:

Since the lines are intersecting, GHI and JHK are opposite angles, so they are the same measure.

That means you can set them equal to each other

x + 7 = 3x - 21

x = 14

Now plug x into GHI

14 + 7 = 21

m∡GHI = 21°

HELP NOW PLSSSSSSSSSSSS

Answers

Answer:

DIBF

Step-by-step explanation:

The lines are:

Line 1  = DLine 2 = ILine 3 = BLine 4 = F

The code is:

DIBF

Maste
1) 2,000 pounds of sand is to be put into 100-pound bags. Each bag will sell
for $5.00. How much is the sand worth altogether?

Answers

Answer: 100$

Step-by-step explanation:

there are 20 bags because 2000 divided by 100 is 20 and 20 times five pounds is £100

Find the percent of decrease from 22 songs to 12 songs. Round to the nearest tenth of a percent if necessary.

Answers

Answer:

I am pretty sure the answer is 45%

Simplify to find the quotients . 24. ) (a ^ 8)/(a ^ 3)

Answers

Answer:

a^5 is the answer

Step-by-step explanation:

a^8 / a³

= a^8 - 3

= a^5

Answer:

a^5

Step-by-step explanation:

nolur cözebilirmisiniz​

Answers

Answer:

vvhfdefg

is c60

O(-
Determine if (-2, -1) is a Solution or
Not a Solution to the linear system.
y = 3x + 5
x + y = -3
Please answer!!!

Answers

Answer:

It is a Solution

Step-by-step explanation:

y=3(-2)+5         y=-1

(-2)+y=-3          y=-1

I'm so confused to this problem someone please help me ​

Answers

(xy)⁷

=(x⁷)(y⁷)

This is the simplified term.

Answer:

Step-by-step explanation:

Hope this helps

Coupon A-14$ rebate on 77$ jacket

Coupon B- 15% off on a 77$ jacket

Answers

Coupon A is the better option

Finding missing angles

Answers

There’s no picture thanks for the points tho

thank for the pint but what is the qestion

SuRpRiSE shAwTYYyyyyyyyyyyyyyyyy​

Answers

Answer:

HeyYyyYyYyT

Step-by-step explanation:

1 :)

Ana cuenta una noticia a 5 personas. A la hora siguiente, cada una de ellas se la cuenta a otras 5, y así sucesivamente. ¿Cuánto tardan en conocerla 3 000 personas?

Answers

Answer:

3 horas si se toma apartir de lo que se dice en el problema

A triangle has an area of 55 cm² and a base of 10 cm².

What is the height of the triangle?

Answers

Answer:

11 cm

Step-by-step explanation:

Answer:

11 Cm

Step-by-step explanation:

b Base

10

cm

A Area

55

cm²

γ

c

a

h

b

b

h

b

h

b

c

γ

a

b

a

c

b

γ

P

c

γ

a

b

A

Using the formula

A=hbb

2

Solving forhb

hb=2A

b=2·55

10=11cm

Please help me! giving out brianliest!

Answers

Answer:

Hmm, remember to use distributive property with the fraction and the numbers in the parenthesis.

Step-by-step explanation:

Alice walks her dog on a 10-foot leash.
While Alice is standing still, what is the
area of space the dog has to roam while
on the leash?

Answers

Answer:

31.4159...feet

Step-by-step explanation:

The area of a circle is 2x radius squaredx pi

Please help me out with this guys

Answers

To find the x- intercept, suptitude in 0 for y and solve for x

Help mee !! I’ll give points !!

Answers

Answer: It is (x - 3)(x + 5)

On a piece of paper, graph y+ 2 > -3x - 3. Then determine which answer
choice matches the graph you drew.
A
B
с
51
5
51
6.
BT
(-2,1)
(-2.1)
(-2.1)
x (-2, 1)
-5
6
-56 (0.-5)
(0-5)
-540.-5)
-5.0.-5)
A. Graph A.
O B. Graph B
O C. Graph C
D. Graph D

Answers

Answer: D

Step-by-step explanation:

The graph that represents the inequality [tex]y+ 2 > -3x - 3[/tex] is graph d

The inequality is given as:

[tex]y+ 2 > -3x - 3[/tex]

Subtract 2 from both sides of the inequality

[tex]y+ 2 -2 > -3x - 3 -2[/tex]

[tex]y > -3x - 5[/tex]

See attachment for the graph of [tex]y > -3x - 5[/tex]

The graph that matches the attached graph is graph (d)

Read more about inequalities at:

https://brainly.com/question/11234618

Pliss help me
Classify these numbers as Irrational and Irrational and place them in their correct area.
vo 1 35.421109, V17.39, II, 200 18,0,-9

Answers

Answer:A

Step-by-step explanation:

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