1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
melamori03 [73]
3 years ago
13

Please give me a hand

Mathematics
2 answers:
nlexa [21]3 years ago
5 0

Answer:

x=5? im not really sure what the question is its all fuzzy

Step-by-step explanation:

vlada-n [284]3 years ago
5 0

Your answer is x = 9.

To solve this equation we just need to expand the brackets and then rearrange the equation to have x on one side and the numbers on the other:

2(x + 5) - 7 = 3(x - 2)

2x + 10 - 7 = 3x - 6

2x + 3 = 3x - 6

- 2x

3 = x - 6

+ 6

9 = x

I hope this helps!

You might be interested in
An article reports the following data on yield (y), mean temperature over the period between date of coming into hops and date o
skelet666 [1.2K]

Answer:

x1=c(16.7,17.4,18.4,16.8,18.9,17.1,17.3,18.2,21.3,21.2,20.7,18.5)

x2=c(30,42,47,47,43,41,48,44,43,50,56,60)

y=c(210,110,103,103,91,76,73,70,68,53,45,31)

mod=lm(y~x1+x2)

summary(mod)

R output: Call:

lm(formula = y ~ x1 + x2)

Residuals:  

   Min      1Q Median      3Q     Max

-41.730 -12.174   0.791 12.374 40.093

Coefficients:

        Estimate Std. Error t value Pr(>|t|)    

(Intercept) 415.113     82.517   5.031 0.000709 ***  

x1            -6.593      4.859 -1.357 0.207913    

x2            -4.504      1.071 -4.204 0.002292 **  

---  

Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1  

Residual standard error: 24.45 on 9 degrees of freedom  

Multiple R-squared: 0.768,     Adjusted R-squared: 0.7164  

F-statistic: 14.9 on 2 and 9 DF, p-value: 0.001395

a).  y=415.113 +(-6.593)x1 +(-4.504)x2

b). s=24.45

c).  y =415.113 +(-6.593)*21.3 +(-4.504)*43 =81.0101

residual =68-81.0101 = -13.0101

d). F=14.9

P=0.0014

There is convincing evidence at least one of the explanatory variables is significant predictor of the response.

e).  newdata=data.frame(x1=21.3, x2=43)

# confidence interval

predict(mod, newdata, interval="confidence")

#prediction interval

predict(mod, newdata, interval="predict")

confidence interval

> predict(mod, newdata, interval="confidence",level=.95)

      fit      lwr      upr

1 81.03364 43.52379 118.5435

95% CI = (43.52, 118.54)

f).  #prediction interval

> predict(mod, newdata, interval="predict",level=.95)

      fit      lwr      upr

1 81.03364 14.19586 147.8714

95% PI=(14.20, 147.87)

g).  No, there is not evidence this factor is significant. It should be dropped from the model.

4 0
3 years ago
There were 624 envelopes to be sorted into 8 different mail bags. if the same number of envelopes will be in each bag how many e
pickupchik [31]

Answer:

I think it is 710

Step-by-step explanation:

8 0
3 years ago
Beth works at a grocery store. She earns $8 per hour for her first 20 hours of work in a week. She earns $11 per hour for workin
aleksandr82 [10.1K]

Answer:

the 2nd graph

*this is my first time answering a question xd*

3 0
3 years ago
Find the value of this expression if x = 5
vfiekz [6]

Answer:

-16

Step-by-step explanation:

5^2+7/5-7

32/-2

-16

8 0
3 years ago
Read 2 more answers
Write the equation y-7= 2(x + 1) in standard form.
Andru [333]

Answer:

y=2X+9

Step-by-step explanation:

y-7=2(x+1)

Distribute 2 through: y-7=2x+2

Add 7 over to the other side: y=2x+9

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the y-intercept in the equation y=4x-3?
    9·2 answers
  • If u triple 4 each and substract 2 each day how many days you have left tell u have zero
    12·1 answer
  • At CD Shack, all used CDs are the same price. Jesse spent $54 and Mimi spent $66 on used CDs. What is the most each used CD coul
    12·1 answer
  • Karen is making 14 different kinds of greeting cards. She is making 12 of eachkind. How many greeting cards is she making?
    7·2 answers
  • Write an equation in point-slope form of the line that passes through the points
    15·1 answer
  • Can someone help me on this
    12·1 answer
  • Look at the photo. Find x
    10·1 answer
  • 4 - 12 per hour. How many paners will that teacher review in 6-13 hours
    12·1 answer
  • Solve for x<br> 3x + 6 over 3 = 6
    12·1 answer
  • Which function defines the sequence
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!