Find the solution to the equation.

4(x + 7) = 38 i need it ASAP plzzz

Answers

Answer 1

Answer:

x = 2.5

or

x = 1/4

Step-by-step explanation:

watch the following steps:

4x + 28 = 38

4x = 38 - 28

4x = 10

x = 2.5

or

x = 1/4

Pls consider marking my answer as Brainliest! It would mean a lot!

Answer 2

Answer:

2.5, maybe

Step-by-step explanation:

distribute 4 into x and 7

subtract 28 from both sides (28-28, 38-28)

divide 4 and 10

2.5

it seems odd...


Related Questions

Skyler solved an equation incorrectly, as shown below:

Step 1: 12 + x = 36
Step 2: x = 36 + 12
Step 3: x = 24

Which statement best explains why Step 2 is incorrect in Skyler's solution?

Answers

Answer:

Step 2 is incorrect.

Step-by-step explanation:

It's incorrect because I'm pretty you need to do inverse operation. To get 24 you must subtract, not add.

Need answers ASAP
I will give brainliest to first who responds

Answers

Sksjsksjdjjdjdjdjrjjdjdjtirirjkr

what is the least common denominator of 4/5 and 3/10?plssreal quick​

Answers

Answer:

5

Step-by-step explanation:

The least common denominator of 4/5 and 3/10 would be 5.

whats 6 x 3 + 36 help meeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

54

Step-by-step explanation:

Calculating Rate of change

Answers

Answer/Step-by-step explanation:

We are given the following coordinates of two points on the line of the graph shown in the question as: A(2, 1) and B(4, 2)

Vertical change from point A = [tex] y_2 - y_1 = 2 - 1 = 1 [/tex]

Horizontal change from point A = [tex] x_2 - x_1 = 4 - 2 = 2 [/tex]

Rate of change = [tex] \frac{y_2 - y_1}{x_2 - x_1} = \frac{1}{2} = 0.5 [/tex]

7th grade math help me pleasee

Answers

Answer:

a, c, b

Step-by-step explanation:

ITS CORRECT TRUST MEEE

Here is a figure that looks like the letter A, along
with several other figures. Which figures are scaled
copies of the original A?

Answers

Figure 2 as it is the same as original but bigger

what came in the mail today

Answers

Answer:

me

Step-by-step explanation:

A bunch of bills for spectrum tv

first pirson to type 1 i will see if i can give brainlist but idk how bot i will try

Answers

Answer:

1

Step-by-step explanation:

you asked to type 1

the ordered pair (x,y)=(2,-3) is a solution to which of the following systems of equation

Answers

Answer:

Y=2x-7

Step-by-step explanation:

What is the remainder of 2x3 − 7x2 + 5x − 1 divided by (x − 3)?

−211
5
−133
2

Answers

By the remainder theorem, the remainder upon dividing p(x) = 2x³ - 7x² + 5x - 1 by x - 3 is p(3),

p(3) = 2(3)³ - 7(3)² + 5(3) - 1 = 5

Find m a. 90
b. 31
c. 59

Answers

Answer:

i think its B

sorry if its wrong im not really sure by my answer

PLEASE help it's due like right now

Answers

Answer:

B (6,7)

Step-by-step explanation:

point x has moved 2 places left, so you move z to places left

I think the answer would be B:)

(Simplify the equation) 3n+5+2n=5+n+6n-n​

Answers

Answer:

n=0

Step-by-step explanation:

3n+5+2n=5+n+6n-n​

move like terms together

3n+2n+5=5+n+6n-n

simplify down

5n+5=5+6n

subtract 5n from each side

5=5+n

subtract 5 from each side

0=n

Dylan makes $336 for 32 hours of work, and Angela makes $420 for 42 hours of work.

1] How much do Dylan and Angela each make per hour?

2] Is Dylan’s wage for 25 hours proportional to Amber’s wage for 42 hours? Why or why not?

Answers

Answer:

Step-by-step explanation:

1 . Dylan : $336/32 hrs = 10.50/ hr Angela : $420/42hrs = $ 10.00/hr

2. No because $ 10.50x25 262.50 where ambers is 15 420 there unit rate is different.

Dylan $10.5 per hour
Angela $17.5 per hour
no its not proportional because half of 50 is 25 so therefore 42 would not be prportional to 25

What is the solution (x,y) to the system of equations given? 2 x + 4 y = − 16 2x+4y=−16 2 y − x = = 16 2y−x==16

Answers

Answer:

(-12,2)

Step-by-step explanation:

2x + 4y = -16

2y - x = 16

Multiply the bottom part by 2.

2x + 4y = -16

4y - 2x = 32

Add the equations and the answers to the equations up, and they will equal each other.

(2x + 4y) + (4y - 2x) = -16 + 32

8y = 16

y = 2

Plug y = 2 to the 2nd equation.

2*2 - x = 16

4 - x = 16

Subtract 4 from both sides.

-x = 12

Multiply both sides by -1.

x = -12

A taxi driver charges a fee if $4 plus 1.50 per mile. If you total was $13 how manu miles did you take

Answers

Answer:

6

Step-by-step explanation:

you need to do this (13-4)/1.50

A student uses the following steps to prove the sine sum identity. The proof is incorrect. Which steps is incorrect

Answers

Answer:

4

Step-by-step explanation:

The incorrect step is Step 4, cos (π/2 -x) cos(-y) + sin (π/2 -x)sin(-y), the correct option is C.

What is Trigonometric Identity?

Trigonometric Identities are based on the trigonometric ratios used to solve Trigonometric equations.

The steps used to solve the trigonometric identity are :

Step 1 :  sin(x+y)

Step 2: cos ((π/2) - (x+y))

Step 3 : cos ( (π/2 -x) -y)

Step 4 : cos (π/2 -x) cosy + sin (π/2 -x)siny

Step 5: sinxcosy+cosxsiny

Therefore,the correct step is cos (π/2 -x) cosy + sin (π/2 -x)siny  and not cos (π/2 -x) cos(-y) + sin (π/2 -x)sin(-y) , the incorrect step is Step 4.

The complete question is attached with the answer.

To know more about Trigonometric Identity

https://brainly.com/question/12537661

#SPJ2

Which of the following is a radical equation?
a. x StartRoot 3 EndRoot = 13
b. x + StartRoot 3 EndRoot = 13
c. StartRoot x EndRoot + 3 = 13
d. x + 3 = StartRoot 13 EndRoot

Answers

The starting radical equation of the problem is d x+3=StarRoot 13 EndRoot

Answer:

the answer is D

Step-by-step explanation:

Lex be a random variable that represents the pH of arterial plasma (le, acidity of the blood). For healthy adults, the mean of the distribution is - 7.4.1 A new drug for arthritis has
been developed. However, it is thought that this drug may change blood pH. A random sample of 31 patients with arthritis took the drug for 3 months. Blood tests showed that x = 8.6 with
sample standard deviations - 2.7. Use a 5% level of significance to test the claim that the drug has changed (either way) the mean pH level of the blood.
USE SALT
(a) what is the level of significance?

what is the value of the sample test sisse? (Round your answer to three decimal places)

Answers

Answer:

2.304

Step-by-step explanation:

If Micah save $150 how much money will his parents give him

Answers

Answer:

$300

Step-by-step explanation:

150/5 = 30, 30 x 10 = 300

Keith 1,342 cupcake rounds to 1,300 and joe 1,347 cupcake rounds to 1,350 who round to the nearest hundred?

Answers

Answer:

Keith

Step-by-step explanation:

When you are rounding to the nearest hundred it would NOT include a tens or ones value. So in this case 1,300 would be correct.

Hope that helps and have a great day!

Molecules of a toxic chemical eventually decompose into inert substances. Suppose the decomposition time is exponentially distributed with a mean of 1/lambda. The half-life of such a persistent poison is that time beyond which the probability is .50 that a particular molecule will remain toxic. Find the half-life for chemicals whose molecules have an average decomposition time of

Answers

Answer:

a)4.15 years

b)22.18 years

c)188.53 years

d)3027.66 years

Step-by-step explanation:

Formula : [tex]P(X\leq t)=1-e^{\frac{-t}{\lambda}}[/tex]

So, [tex]P(X>t)=1-(1-e^{\frac{-t}{\lambda}})[/tex]

[tex]P(X>t)=e^{\frac{-t}{\lambda}}[/tex]

We are given that The half-life of such a persistent poison is that time beyond which the probability is .50 that a particular molecule will remain toxic i.e. P(X>t)=0.5

So, [tex]e^{\frac{-t}{\lambda}}=0.5[/tex]

Taking natural log both sides

[tex]ln(e^{\frac{-t}{\lambda}})=ln(0.5)\\\frac{-t}{\lambda}=ln(0.5)\\t=-\lambda ln(0.5)[/tex]

a)

[tex]\lambda =6[/tex]

t=-(6) ln(0.5)=4.15 years

b)

[tex]\lambda =32[/tex]

t=-(32) ln(0.5)=22.18 years

c)

[tex]\lambda =272[/tex]

t=-(272) ln(0.5)=188.53 years

d)

[tex]\lambda =4368[/tex]

t=-(4368) ln(0.5)=3027.66 years

help!!!

3 Peter measured the width of a room as 28 feet
and the length as 17 feet. About how many
square feet does the room cover?
Area = length X width

Answers

answer: 476
Area = length X width 28x17= 476

9. A candle has an initial height of12 inches. Sara lights the candle and it begins to melt at an average rate of 0.5
inch per hour. Which function can be used to find the height of the candle inches after x hours?
A) H(X) = 0.5(x +12) B) H(x) = -0.5(x +12) C)H(x) = 12 +0.5x
+
D) H(X) = 12 -0.5x
1 Pt
А.
B
D
E

Answers

Answer:

D

Step-by-step explanation:

h(x)=12-0.5x

x=hour

A group of students formed a circle during a game. The circumference of the circle was about 43.96 feet, and the diameter of the circle was 14 feet.



Which expression best represents the value of
π
?

A.
43.96
7

B.
43.96
14

C.
7
43.96

D.
14
43.96

Answers

Answer:

pi = pi

Step-by-step explanation:

Circumference = 2 * pi * r

Equation you need:

43.96 = 2 * pi * 7

43.96 = 2 * 7 * pi

43.96 / 14 = pi

pi = 3.14

What is the value of x in the figure below? asap :(

Answers

Answer:

22.5

Step-by-step explanation:

Step 1:

8x - 50° = 6x - 5°              Vertical ∠'s

Step 2:

8x = 6x + 45°        Add 50° on both sides

Step 3:

2x = 45°     Subtrat 6x on both sides

Step 4:

x = 45° ÷ 2     Divide

Answer:

x = 22.5

Hope This Helps :)

over a two hour time period a snail moved 50 inches. how far is this in yards​

Answers

Answer:

1.38889

Step-by-step explanation:

Answer:

your answer is 1.3889 plz mark brainlist thank you

It cost Emma $5.34 to send 178 text messages. How much does each text cost to send?

Answers

Answer:

approximately $0.33

Step-by-step explanation:

you just do 178/5.34

Gloria deposited $500 into a bank account that earned 7.5% simple interest each year. She earned $225 in interest before closing the account.

No money was deposited into or withdrawn from the account.

How many years was the money in the account?

Round your answer to the nearest whole year.

Answers

Answer:

6

Step-by-step explanation:

7.5 % × 500 = 37.5

37.5 × 6 = 225

Answer:

6

Step-by-step explanation:

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