Is 9 a solution to the equation?
3x - 7=20
Yes no

Answers

Answer 1

Answer:

yes

Step-by-step explanation:

because its right i know its right

Answer 2
yes 9 is a solution to the equation. When you substitute 9 for x and solve you get 20=20 which means that 9 is in fact a solution.

Related Questions

A penny weighs 0.8oz A stack of 20 pennies is 4.3cm in theory, how tall is a stack on 1 ton of pennies?

Answers

16 oz = 1 lb
0.8 oz = 0.05 lb = 1 penny

1 ton = 2000 lbs

2000 x 20 = 40,000 pennies (in theory)

Answer:

Step-by-step explanation:

16 oz = 1 lb0.8 oz = 0.05 lb = 1 penny1 ton = 2000 lbs2000 x 20 = 40,000 pennies its all about conversions

#SPJ2


Find the total future amount for $500 invested at 2.02% for 5 years
compounded monthly.
State your answer in terms of dollars rounded to the nearest cent
(hundredth).
Do not include a $ sign with your response.

Correct Answer is but explain how
553.09

Answers

monthly compound interest formula is
P(1+(r/12)^12t
Where p is the principal amount (starting money), r is the rate (in decimal form), and t is time
2.02% is 0.0202 in decimal form
So to plug in our values:
500(1+0.00168333)^12(5)
Plug that in the calculator and then you get
553.09134377
Round to the nearest cent (unless indicated otherwise)
And then you get
553.09

15. Reid earns $15 for each lawn he cuts. He wants to buy a new bike that costs
$109. How many lawns will he need to cut in order to have enough money?

Answers

he will need to cut 8 lawns

A car travelling at 120km per hour. How many metres does the car travel in 2 1/2 minutes

Answers

Answer:

48

Step-by-step explanation:

time = 2 1/2 = 5/2

speed= distance÷time

120= d÷ 5/2

(120×2)÷5= d

d = 48

Select the better deal in the pair. Then give the unit rate for the better deal.

$182/7g
or
$342/9g

Answers

Answer:182/7g

Step-by-step explanation:  182 divide by 7= 26

                                              342 divide by 9=38

and you want the lowest cost so a.

Solve 3x + 4x = 2.
+

Answers

Answer: [tex]\frac{-2+\sqrt{10}}{3}[/tex]

Step-by-step explanation:

Salma made $143 for 11 hours of work. How much for 8 hours of work?

Answers

Answer:

140 dollars salma made if she worked for 8 hrs long

Answer:

104

Step-by-step explanation:

143 = 11 hours

143/11 = 1 hour

13= 1 hour

13 × 8 = 104

104

please mark me as brainliest.

Determine the better buy. A: $9.60 for 3 gallons B: $16.00 for 400 fl ounces
1 gallon = 128 fl ounces

Answers

Answer:

A is better, you pay 0.015 less than option B.

Step-by-step explanation:

1 gallon = 128 oz so:

3 x 128 =  384 oz

9.60 / 384 = $0.025 per oz

16.00 / 400 = $0.04 per OZ

Help please i just wanna pass

Answers

The answer is 741. But pls trust me that is what I got

please help ME I BEG YOU​

Answers

Answer:

Construction of 60° exactly

Find the slope of the line that passes through (−1, 3) and (1, 13).

Answers

Answer:

Step-by-step explanation:

Slope = (change in y)/ (change in x)

          = (13 - 3)/(1 - (-1))

           = (13 - 3)/(1 + 1)

           = 10/2

           = 5

Joe's employer will reimburse him $0.17 per miles driven. If Joe drives 104.43 miles on a business trip, what is his mileage reimbursement?

Answers

Answer:

17.75

Step-by-step explanation:

You can rewrite the sentence as

$0.17*104.43=

Which is  17.7531

Round it money which is 17.75

Therefore 17.75 is your answer

Hope this helps!

Suppose that $590 is deposited into an account that pays 3.5% compounded quarterly. How long will it
will take for the account to contain at least $800? Round to the nearest year.

Answers

Answer: 9 years

Step-by-step explanation:

Let 's use the compound interest formula :

[tex]\rm \displaystyle S=A\left( 1+\frac{N}{100} \right)^{\rm \big r}[/tex]

Where N- the percentage by which we raise the price ; r-years ; A-the original price

In our case

N=3,5%  ;  r=?  ; A=590$  

And we know :

[tex]\rm \displaystyle S= 800 \\\\ 590 \left( 1+ \frac{3,5}{100} \right)^{\big {r}}=800 \\\\\\(1,035)^{\big r} = \frac{80}{59}\approx1,355 \\\\\\ r= \log_{1,035}\ 1,355=8,\underline831 \approx9 \ years[/tex]

2. Mack buys a gourmet pizza for $50. The shop increases its purchase price by 50%? What is the new price of the pizza?

Answers

Answer:

$75

Step-by-step explanation:

50% is half of the total, meaning that we can take half of $50, then add it to 50. Half of 50 is 25, so 50 + 25 = 75 dollars.

Use the results from a survey of a simple random sample of 1176 adults. Among the 1176 respondents, 77% rated themselves as above average drivers. We want to test the
claim that
7/10 of adults rate themselves as above average drivers. Complete parts (a) through (c)
a. Identify the actual number of respondents who rated themselves as above average drivers
(Round to the nearest whole number as needed)

Answers

Using the sample data to test the hypothesis, we have that:

The actual number of respondents who rated themselves as above average drivers is 906.The p-value of the test is 0, which is less than the standard significance level of 0.05, thus we can conclude that the proportion respondents who rated themselves as above average drivers is greater than 0.7.

77% of the sample of 1176 adults rated themselves as above average drivers, that is:

[tex]0.77(1176) = 906[/tex].

Thus, the actual number of respondents who rated themselves as above average drivers is 906.

At the null hypothesis, we test if the proportion is [tex]\displaystyle \frac{7}{10} = 0.7[/tex], that is:

[tex]H_0: p = 0.7[/tex]

At the alternative hypothesis, we test if the proportion is greater than 70%, that is:

[tex]H_1: p \geq 0.7[/tex]

The test statistic is given by:

[tex]z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}[/tex]

In which:

[tex]\overline{p}[/tex] is the sample proportion.p is the proportion tested.n is the size of the sample.

In this problem, the parameters are [tex]\overline{p} = 0.77, p = 0.7, n = 1176[/tex].

Thus, the value of the test statistic is:

[tex]z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}[/tex]

[tex]z = \frac{0.77 - 0.7}{\sqrt{\frac{0.7(0.3)}{1176}}}[/tex]

[tex]z = 5.24[/tex]

The p-value of the test is the probability of finding a sample proportion above 0.77, which is 1 subtracted by the p-value of z = 5.24.

Looking at the z-table, z = 5.24 has a p-value of 1.

1 - 1 = 0.

The p-value of the test is 0, which is less than the standard significance level of 0.05, thus we can conclude that the proportion respondents who rated themselves as above average drivers is greater than 0.7.

A similar problem is given at https://brainly.com/question/24330815

1.
D x y
a dxdy
 
  
2
   S D r  4 .

Answers

Answer:

ok

Step-by-step explanation:

ok fjFjxggkgclclcchlclcullcucuclcvuullulj

Which function is the inverse of the function f(x) = 4x2 + 10, if the domain of f(x) is x 2 0?

Answers

Step-by-step explanation:

inverse = √((x-10)/4)

that is the answer

Answer:

Step-by-step explanation:

(( BRAINLISET QUEATION ))
The temperature of a room is -4 degree Celsius. The temperature of the heater is 16 degree Celsius. How many degrees more than room temperature is the heater?

Answers

Answer:

Step-by-step explanation:

Under steady state condition heat released to the room=heat dissipated out of the room Let θ be the temperature of heater Then

θ−20=α[20−(−20)] .(i)

and θ−10=α[10−(−40)] .(ii) Solving Eqs. (i) and (ii) we get

we get

θ=60∘C

The two figures are similar. Find the ratios (red to blue) of the perimeters and of the areas. Write the ratios as fractions in simplest form.

Answers

Answer:

i need a picture or something man

Step-by-step explanation:

Only help me with number 5 plz

Answers

Answer:

Line AB is Perpendicular to line CD

Line AB Parallel to line EF

Answer:

perpendicular, parallel

Step-by-step explanation:

Also your answer for #4 is wrong, it's actually line FD

A true/false test has 20 questions on it. What is the probability that you get at least 18 right by purely guessing?

Answers

Answer:

I would say if your lucky 6/20 but if not 4/10

A phone sells for $250. It is now on sale for 1/5 off the original price. April has a coupon for an extra 10% off the sale price. To the nearest dollar, how much less than the original price will April pay for the phone?

Answers

Answer:

$180

Step-by-step explanation:

Answer:

£180

Step-by-step explanation:

250 / 5 = 50

250 - 50 = 200

200 / 10 = 20

200 - 10 = 180

Which expression is equal to x + 5 + 5x + 10 + 2y? *

Answers

Answer:

x + 5 + 5x + 10 + 2y = 6x + 2y + 15

Step-by-step explanation:

Group like terms

= x + 5x + 2y + 5 + 10  

Add the number 5 + 10 = 15  

= x + 5x + 2y + 15

Add similar elements x + 5x = 6x  

= 6x + 2y + 15

Have a good day :)

Whats the answer? ( Branliest )

Answers

Answer:

4

Step-by-step explanation:

4-0.25g +0.5h

We have,

g=10

h=5

Putting the values,

4-0.25g +0.5h= 4-0.25*10+0.5*5 =4 -2.5 +2.5 = 4

Answer:

4

Step-by-step explanation:

[tex]4 - 0.25g + 0.5h \\ 4 - 0.25(10) + 0.5(5) \\ 4 - 2.5 + 2.5 \\ 4 \\ [/tex]

4.7 Distribution of sum of independent uniform RVs. A RV Y is the sum of 500 independent and identically distributed RVs X1, X2, . . . , X500. Each Xi is uniformly distributed over (1, 2). Find the mean and variance of Y . Give an approximate distribution or PDF of Y and justify your answer. What is the probability that Y is larger than 750

Answers

Answer:

Let X1,X2,...,Xn be i.i.d. random variables with expected value EXi=μ<∞ and variance 0<Var(Xi)=σ2<∞. Then, the random variable

Zn=X¯¯¯¯−μσ/n−−√=X1+X2+...+Xn−nμn−−√σ

converges in distribution to the standard normal random variable as n goes to infinity, that is

limn→∞P(Zn≤x)=Φ(x), for all x∈R,

where Φ(x) is the standard normal CDF.

Step-by-step explanation:

Rory has 5 pounds of ground turkey to make meatballs. He uses 5/8 pound per meatball to make 7 meatballs. How many 1/8 pound meatballs can Rory with the remaining turkey?

Answers

Answer:

4/8

Step-by-step explanation:

because

Claire's suitcase weighs 15 pounds less than her older sisters.
Together the suitcases weigh 109 pounds. How many pounds does
Claire's older sister's suitcase weigh?

Answers

bro i read it wrong that's my bad hold on ill get the right one rq

Write an equation in point slope form that goes through the point (3,5) and is perpendicular to the line y=1/3x-7

Answers

Answer:

[tex]y - 5 = - 3(x - 3)[/tex]

Step-by-step explanation:

our original equation

[tex]y = \frac{1}{3} x - 7[/tex]

A perpendicular slope of a line is the negative reciprocal

So our slope would be -3

point slope form is

[tex]y - y1 = m(x - x1)[/tex]

let's substitute our given point (3, 5) and our perpendicular slope, -3

[tex]y - 5 = - 3(x - 3)[/tex]

representation of the function f(x)=-2x2+8x-6

Answers

X-intercepts: (1,0), (3,0)
Y-intercepts: (-6,0)

carry out of the indicate operations and simplify 1/4b(x-4)

Answers

Answer:

When putang ina mo one said i hated yepero mahal kita yiee kilig to the bones ang potcha haha

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