-10(x + 21) = -15x + 18
What value of x makes the equation true?

Answers

Answer 1
Answer:

x = 45.6

Explanation:

-10(x + 21) = -15x + 18

-10x - 210 = -15x + 18

-210 = -5x + 18

-228 = -5x

x = 45.6

(I’m not sure if this is what you’re looking for, but I hope it helped a bit)

Related Questions


The Kings Dominion Gold Pass costs $89. If you buy it the first week of
December you will get a 15% discount. What will your total cost be with the
discount?

Answers

Answer:

$75.65

Step-by-step explanation:

1 - .15 = .85 = 85% of the price is what you pay

89 • .85 = $75.65

Teri earned $18.25 an hour at the semiconductor plant. The payroll deductions reduced her paycheck by $182.50. If her first weekly paycheck was at least $547.50 after the deductions, how many hours did she work that week?

Answers

Answer:

40 hours

Step-by-step explanation:

did 18.25*40 then subtracted 182.50 and it equaled 547.50

jack wanted to leave a 15% tip on a $36.00 bill. How much would he leave for a tip
A. $7.20
B. $5.40
C. 3.60
D. $3.96

Answers

The answer is $5.40. hope this helped <3

Answer:

B = $5.40

Hope this helps!

Step-by-step explanation:

find the value of each expression for n = 2.​

Answers

Answer:

1. 22

2. 22

3. 28

Step-by-step explanation:

Substitue the n in each expression with two, then solve the problem for the value

1. What is the measure
of AB?
A
264°
B

Answers

AB= 96

How to:
360-264
B= 96°, a full circle is 360°
360°-264°=96°

como seria una ecuacion de (2,3) si la pendiente es -2​

Answers

Answer:

Hola, antes de dar la respuesta quisiera recomendarte una app llamada m a t h w a y (sin espacios) esto te va a ayudar con preguntas sobre matematica y super rapido.

Step-by-step explanation:

(2,3) pendiente de -2

                                           1. Usa la fórmula de la ecuación de la recta para

                                              hallar b

y = mx + b

                                          2.  Substituye el valor de m, x y "y" en la ecuacion

3 = (-2) · (2) +b                      

                                           3. Calcula para hallar el valor de b

b = 7

                                          4. Ahora con el valor de b, calcule de nuevo

y = mx + b

3 = -2x +7

Espero esto haya ayudado en algo, sino puedes intentar buscando en el sitio que recomende.      

4​x​ − 2 − 2​x​ = ​x​ − 5

−(​x​ + 3) = 2​x​ − 6



I need these step by step, please help!! I'll give brainliest and all of my points

Answers

Answer:

Step-by-step explanation:

What is the problem, can you write it better pls?

Answer:

x = - 3 and x = 1

Step-by-step explanation:

4x - 2 - 2x = x - 5, that is

2x - 2 = x - 5 ( subtract x from both sides )

x - 2 = - 5 ( add 2 to both sides )

x = - 3

----------------------------------------

- (x + 3) = 2x - 6 ← distribute left side

- x - 3 = 2x - 6 ( subtract 2x from both sides )

- 3x - 3 = - 6 ( add 3 to both sides )

- 3x = - 3 ( divide both sides by - 3 )

x = 1

13 × 20 – 15 × 9 + 20 × 7 – 6 × 15.

Answers

Answer:

the answer is 175

Step-by-step explanation:

have a good day

Answer:

The correct answer is 175.

Step-by-step explanation:

  [tex]13 * 20 - 15 * 9 + 20 * 7 - 6 * 15\\[/tex]

= [tex]260 - 135 + 140 - 90[/tex]

= [tex]400 - 225[/tex]

= 175.

Find the missing number (i.e. the coefficient in front of x) so that the equation has no solutions: □x + 4 = 4x + 15

Answers

Answer:

X=8

Step-by-step explanation:

Please help will give brainliest

Answers

Step-by-step explanation:

[tex] \frac{32.5}{33.8} = 0.9615[/tex]

B is the quotient. your welcome

I am not sure how to do this.​

Answers

Answer:

Hopefully this can help

Step-by-step explanation:

Determine whether the graph shows a positive correlation, a negative correlation, or no correlation. If there is a positive or negative correlation, describe its meaning in the situation.

a. no correlation
b. positive correlation; as time passes, the birth rate increases.
c. positive correlation; as time passes, the birth rate decreases.
d. negative correlation; as time passes, the birth rate decreases.

Answers

Answer:

a

Step-by-step explanation:

Answer:

I think D, Correct me if I'm wrong!

Step-by-step explanation:

Right answer gets brainlist

Answers

Answer:

132

Step-by-step explanation:

12 times 11= 132 PLEASE MARK BRAINLIEST

A bag contains 5 red marbles, 8 blue marbles and 4 green marbles. If three marbles are drawn out of the bag, what is the probability, to the nearest 10th of a percent, that all three marbles drawn will be red?

Answers

Without replacement, the probability that all three marbles drawn will be red is 0.01.

What is the probability?

Probabiliy is used to determine the likelihood of an event happening. The probability that the event would occur lies between 0 and 1.

Probability of drawing three red marbles = (number of red marbles / total number of marbles) x (number of red marbles / total number of marbles - 1) x (number of red marbles / total number of marbles - 1)

5/17 x 4/16 x 3/15 = 0.01

The probability, to the nearest 10th of a percent, that all three marbles drawn will be red; 1.5%

How to calculate probability?

We are given;

Number of red marbles = 5

Number of blue marbles = 8

Number of Green marbles = 4

Total number of marbles = 5 + 8 + 4

Total number of marbles = 17

Probability of first being red = 5/17

Probability of second being red = 4/16

Probability of third being red = 3/15

Thus;

P(all three marbles drawn are red) = (5/17) * (4/16) * (3/15)

P(all three marbles drawn are red) = 0.0147

Approximating to nearest tenth of a percent = 0.015 = 1.5%

Read more about Probability at; https://brainly.com/question/251701

#SPJ2

Which value from the set (54,45,27,6) makes 54/x = 9 true?

Answers

Answer:

x = 6

Step-by-step explanation:

54/6 is 9. This is the only correct one.

Hope it helps!

30. A mom bought her kids 3 cartons of milk
for $1.25 each and 6 doughnuts. The total
cost was $6.90. Write an equation to
determine the cost of a doughnut.

Answers

Answer:

x = (1.25 * 3 - 6.90) divided by 6

Step-by-step explanation:

this will get the price of all the milk, then take it out of the total price, then divide it by 6 because there are 6 donuts, this will give you the price of 1 donut

Answer:

$3.15

Step-by-step explanation:

$1.25x3=$3.75

$6.90-$3.75=$3.15

A six-sided fair die and an eight-sided fair die are rolled together. What is the probability of getting numbers whose sum is a multiple of 3? A 1/18 B 1/4 C 1/3 D 4/9 E 2/3​

Answers

Answer:

C 1/3

Step-by-step explanation:

The numbers on a 6-sides die are 1, 2, 3, 4, 5, 6.

The number of an 8-sided die are 1, 2, 3, 4, 5, 6, 7, 8.

All the possible sums are:

2, 3, 4, 5, 6, 7, 8, 9,

3, 4, 5, 6, 7, 8, 9, 10,

4, 5, 6, 7, 8, 9, 10, 11,

5, 6, 7, 8, 9, 10, 11, 12

6, 7, 8, 9, 10, 11, 12, 13

7, 8, 9, 10, 11, 12 ,13, 14

The multiples of 3 are shown in bold and italic.

There are 48 possible sums.

16 sums are multiples of 3.

p(numbers whose sum is a multiple of 3) =

(number of outcomes that are multiples of 3)/(total number of possible outcomes)

p(numbers whose sum is a multiple of 3) = 16/48

p(numbers whose sum is a multiple of 3) = 1/3

Answer: C 1/3

Determine how (if possible) the triangle can be proven similar:

Answers

Answer:

Not similar

Step-by-step explanation:

 You can only find the vertical angles at the intersection.

So, you know they share one angle.

That is not enough information to prove similarity.

Therefore, I'd say they're not similar.

A principal of $2900 is invested at 6.25% interest, compounded annually. How much will the investment be worth after 14 years?

Answers

Answer:

$6774.4

Step-by-step explanation:

Given data

P=$2900

r= 6.25%

t= 14 years

A=???

The compound interest formula is given as

A=P(1+r)^t

substiute

A= 2900(1+0.0625)^14

A= 2900(1.0625)^14

A= 2900*2.336

A= $6774.4

Hence the final amount is $6774.4

Write a direct variation equation if y varies directly with x and y = -12 and x = 2

Answers

Answer:

y = -6x

Step-by-step explanation:

We can check our answer by plugging in x = 2 and y = -12 into the equation

Match the numbers with the correct label pls helpppp

Answers

Answer:

first convert all fractions to decimals so you can put least to most on the line

a. -.25

b. − .428571 ( repeating)

c. -.2

now put them in order

a(blue)=b,-3/7

b(pink)=a,-2/8

c(green)=c-.2

if you form a triangle from three given angle measures, do you always get a unique triangle, or more than one triangle?

Answers

It depends on the measurements. If you have equal measurements, it would just be an equilateral triangle. If you got measurements that had two of the same degrees, that would be isosceles. Measurements that are all different to one another would be a scalene triangle.

PLEASE HELP ME I WILL GUVE BRAINLIEST I REALLY NEED HELP

Answers

The word solution means the value that makes the equation true. 88 is the solution because it makes he equation true.

How many solutions does the following equation have? 5(x + 3)= 5x + 3
HELP!!

Answers

There are no values of x that make the equation true. There’s no solution you need a better explanation

I NEED HELP I WILL MARK BRAINLIEST!!!
Find the slope of the following graph.

Answers

2/1 or 2
It's goes up by 2 and to the right once.

Answer:

1/2 or one half

Step-by-step explanation:

I did this question

Jaden is participating in a 4-day cross -country biking challenge. He biked for 56, 60, and 47 miles on the first three days. Over the four days he averaged ( arithmetic mean ) 57 miles per day. How many miles did he bike on the last day?

Answers

Answer:65

Step-by-step explanation:

Is 9x negative or positive?
-9x + 17x + -8x

Answers

Answer:

-9x is negative but the answer of the whole problem would be 0.

Which equation represents the graphed line?
y
6
4
NO
O
2
4
6
A. y - 1 = -2(x - 3)
O
B. y - 1 = -2(x + 3)
C. y + 1 = -2(x - 3)
O D. y + 1 = -2(x + 3)

Answers

Answer:

D

Step-by-step explanation:

you are buying decorations for a birthday party. the before tax total for 3 rolls of crepe paper and 20 balloons is $11.40. after you start decorating, you need more supplies. you buy 2 more rolls of crepe paper and 10 more balloons for $7.20 before tax. how much did each cost?

please help with an explanation.

Answers

Answer & Step-by-step explanation:

Let's have

C = Creepers

B = Balloons

1) 6C + 20B = 11.9  

2) 2C + 15B = 6.05

Eliminate

16C + 20B = 11.9 x3  

-2C + 15B = 6.05 x4

18C + 60B = 35.7  

-8C + 60B = 24.2

10C/10 = 11.5/10  

C = 1.15

Wilma saves $12,000 at the end of every six months for 10 years. Assume 10% compounded semiannually and find the present value.
$149,546.52
$137,547.52
$73,734.84
$195,589.79

Answers

$195,589.79 hope this helos
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