Heidi
Sal had $95 in his wallet. Then he bought a hat for $22 and a pair of jeans for $35 at the store. On his way home, Sal stops by the gas station to put gas in his tank using the money he has
left. If gas costs $3 per gallon, and x represents the number of gallons of gas Sal is able to purchase, which statements are true?
Select all that are correct.
Sal can determine the number of gallons of gas that he can purchase using the inequality 57x + 3 5 95
The number of gallons of gas that Sal can purchase can be represented by the inequality 3x S 38
Sal can purchase 13 gallons of gas or fewer.
If Sal wants to save enough money for an $8 car wash, he can also purclyse up to 10 gallons of gas.
Answer:
yes
Step-by-step explanation:
ok
15 points!!!
Write an
equation of the parabola shown.
Answer:
y=1/2x-4
Step-by-step explanation:
find the gradient and sub in to find y intercept.give me brainliest pls this took forever to do,
Can someone help? :D
Answer:
I believe the answer is A
Step-by-step explanation:
What is the solution of each equation?
18=t+2.3
Answer:
t=15.7
Step-by-step explanation:
The Fairplay sporting goods store sells two
different models of a popular fitness tracker. In
a month the store sold 42 trackers for a total of
$6,574. Write and solve a system of equations
that can be used to determine the number of
each unit sold.
The final statement is The linear equation is xx₁+xy₁=6532
What is the solution to a linear equation?The solution of a linear equation is defined as the points, in which the lines represent the intersection of two linear equations. In other words, the solution set of the system of linear equations is the set of all possible values to the variables that satisfies the given linear equation.
Given here: Total trackers sold =42 and total sales=$6574
let x models of 1st model and 42-x models of 2nd model be sold and their respective selling price be x₁ and y₁, then we have
xx₁+42+xy₁=6574
xx₁+xy₁=6532
Hence, The linear equation is xx₁+xy₁=6532
Learn more about linear equations here:
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1. You see a pair of Air Jordan's, that normally cost $90.00, on sale for 20% 2 points
off. Calculate the sale price of the shoes.*
Answer:
72 is ur answer
Step-by-step explanation:
90-18 =72
I need help in a and b
Find the value Of x ? help please asap
Answer:
x= 85°
Step-by-step explanation:
Pls help ASAP!!!!!!!!!!!!!!!!!!
Answer:
it is B
Step-by-step explanation:
i counted all the units for c, and B matches with what I got
:)
Answer:
the answer would be letter B
I need this for extra credit please!!
The difference in hours between full-timers and the part-timers who work 6 hours a day is 2 working hours. How many hours per day do full-timers work?
Answer:
8 hours per day.
6+2=8
..
The question is in the image below!
Answer: a
aa
Step-by-step explanation:aaa
aaaa
Answer:
x = 2
Step-by-step explanation:
2x + 5 = 8x - 7
Add 7 on both sides...
2x + 12 = 8x
Subtract 2x on both sides...
12 = 6x
Divide by 6....
x = 2
:)
Find three rational number between 2/3 and 3/4.
First pls
Answer:
21/30, 22/30, 23/30
Step-by-step explanation:
34, 29, 28, 16, 19, 18, 34, 33, 29
Find the range of the data set
Answer:
34-16=18
so 18
Answer:
18
Step-by-step explanation:
First, order the data set from least to greatest:
16, 18, 19, 28, 29, 29, 33, 34, 34
The range of a given data set can be found by subtracting the greatest number (34 in this case) with the least number (16) in the set:
34 - 16 = 18
18 is your answer.
~
The equation Negative one-half(x + 1) = (y – 5)2 is represented by which graph?
its Not A or B
Answer:
Step-by-step explanation:
one-half(x + 1) = (y – 5)^2, written symbolically, is (1/2)(x - [-1]) = (y - 5)^2
or x + 1 = 2(y - 5)^2 (after multiplying all terms by 2). Because the y term is squared, we know immediately that the graph is a horizontal (not vertical) parabola.
This equation (immediately above) can be written as
x = 2(y - 5)^2 - 1
The standard equation of a horizontal parabola with vertex (h, k) is x = c(y - k)^2 + h. Comparing this to the given quadratic:
we see that k = 5 and h = -1. This tells us that the vertex of this graph is (-1, 5), and that the graph is stretched horizontally because c = 2 is greater than 1.
To graph this, it's best to make a short table of points, as follows, remembering that y is the independent value and x depends on y through the equation given above.
y x = 2(y - 5)^2 - 1 (x, y)
0 x = 49 (49, 0)
2 x = 2(-3)^2 - 1 (17, 2)
1 x = 2(-4)^2 - 1 (31, 1)
vertex (already found) (-1, 5)
The graph of equation 1/2(x+1)=[tex](y-5)^{2}[/tex] looks like graph of a horizontal parabola.
What is equation?Equation is relationship between two or more variables that are expressed in equal to form. Equation of two variables look like ax+by=c. It is of many types like linear equation, quadratic equation, cubic equation, etc.
How to graph equation?one-half(x + 1) = (y – 5)^2, written symbolically, is (1/2)(x - [-1]) = [tex](y-5)^{2}[/tex]
or x + 1 = 2[tex](y-5)^{2}[/tex]. Because the y term is squared, we know immediately that the graph is a horizontal (not vertical) parabola.
This equation can be written as
x = 2[tex](y-5)^{2}[/tex] - 1
The standard equation of a horizontal parabola with vertex (h, k) is
x = c[tex](c-k)^{2}[/tex] + h. Comparing this to the given quadratic:
we see that k = 5 and h = -1. This tells us that the vertex of this graph is (-1, 5), and that the graph is stretched horizontally because c = 2 is greater than 1.
To graph this, it's best to make a short table of points, as follows, remembering that y is the independent value and x depends on y through the equation given above.
y x = 2[tex](y-5)^{2}[/tex] - 1 (x, y)
0 x = 49 (49, 0)
2 x = 2(-3)^2 - 1 (17, 2)
1 x = 2(-4)^2 - 1 (31, 1)
vertex (already found) (-1, 5)
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Can you help me with this...thank you
Answer:
[tex]a=\frac{1}{2}\times \: h(a+b)[/tex]
[tex] \frac{1}{2 } \times 9(18 + 24) [/tex]
24 + 18=42
[tex] = \frac{1}{2} \times 9(42)[/tex]
[tex] \frac{1}{2} \times 378[/tex]
=189cm²
Step-by-step explanation:
just use the formula but I'm not sure if my calculation is correct lol
Answer please .Give an explanation so I know ur not just getting points so I dont report. Thank you!
9514 1404 393
Answer:
B. 1.5 = 2p
Step-by-step explanation:
If p is the fraction of the price of a pizza, then 2p is the actual value of that fraction. We're told that is equal to the price of a hotdog, so ...
2p = 1.5
or
1.5 = 2p . . . . . . matches choice B
_____
Additional comment
Some of us would "cut to the chase" and compute the fraction directly:
p = (price of hotdog)/(price of pizza) = 1.5/2
No such choice is offered, so the next best is the equation you get when you multiply this by 2:
2p = 1.5
PLZ HELP ME ITS DUE TODAY :'(
Answer:
24
Step-by-step explanation:
y= 19x + 5
Find the surface area of the solid below. Round to the nearest tenth it needed. Please someone helpppp
your answer will be 1275 yd^2
Step-by-step explanation:
hope it helps
A boat travels N 31º E for 65 miles and then N 59° W for 102 miles. What is the bearing of the boat from its
starting point?
а. N 57° W
b. N 33 w
C. N 37° W
d. N 26° W
HELP ASAP I KNOW MY BOYS GOT ME‼️15 POINTS PLUS BRAINLIEST
The graph of a function F is shown below use the graph of the function to find it’s average rate of change from x= -4 to x= -2.
Simplify your answer as much as possible.
Answer:
avg rate of change = -2/3
Step-by-step explanation:
f(x) = -1/3(x-2)²+4
f(-4) - f(2) / [-4-(-2)]
= -8 - (-28/3) / -2
= (-24/3 + 28/3) / -2
= 4/3 · -1/2
= -4/6 or -2/3
PLEASE, PLEASE HELP WITH THIS SOON!
A restaurant customer left $1.10 as a tip. The tax was 4% and the tip was 10% of the after tax cost. Which information is not needed to compute the bill after tax and tip? What was the total bill?
Answer:
all info is needed answer of the total bill is:275 us
Step-by-step explanation:
10x1.10=11= tax
100/z=4/11
275
Jean works for the government and was conducting a survey to determine the income levels of a number of different neighborhoods in a metropolitan area. Based on national data, Jean knows that the mean income level in the country is $40,000, with a standard deviation of $2,000. Jean selected three neighborhoods and determined the average income level. What is the probability that the average income level in the neighborhoods was less than $38,000
Answer:
0.0418 = 4.18% probability that the average income level in the neighborhoods was less than $38,000.
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Jean knows that the mean income level in the country is $40,000, with a standard deviation of $2,000.
This means that [tex]\mu = 40000, \sigma = 2000[/tex]
Jean selected three neighborhoods and determined the average income level.
This means that [tex]n = 3, s = \frac{2000}{\sqrt{3}} = 1154.7[/tex]
What is the probability that the average income level in the neighborhoods was less than $38,000
This is the pvalue of Z when X = 38000. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{38000 - 40000}{1154.7}[/tex]
[tex]Z = -1.73[/tex]
[tex]Z = -1.73[/tex] has a pvalue of 0.0418
0.0418 = 4.18% probability that the average income level in the neighborhoods was less than $38,000.
Some please help me!!!!!!!!!!:(
Answer:
ad fk kcfj dlajk jk djkfa ejk fks e
Step-by-step explanation:
Which of the numbers below is greater than 313.587?
A) 314
B) 313.59
C) 313
D) 313.58
Answer:
314
Step-by-step explanation:
Because 314 is bigger than 313.587
Can 1,3,7 form a triangle
Hurry I need help ASAP
Answer:
What
Step-by-step explanation:
ellaborate, if its just the numbers then no.
Which pair shows equivalent expressions?
A. 2x+10=-2(x-5)
B. -2(x-5)=2x-10
C. -2x-10=-2(x+5)
D. -2(x-5)=-2x-10
Answer:
its answer is A...as u see inA 10 can be divided by 2 and the answer comes 5 it is equivalent.
What is the solution to 9x−6<21?
Select one:
x<4
x<3
x<2
x<5
Answer:
[tex]x > 3[/tex]
Step-by-step explanation:
1) Add 6 to both sides.
[tex]9x > 21 + 6[/tex]
2) Simplify 21 + 6 to 27.
[tex]9x > 27[/tex]
3) Divide both sides by 9.
[tex]x > \frac{27}{9} [/tex]
4) Simplify 27/9 to 3.
[tex]x > 3[/tex]
Therefor, the answer is option B. x > 3.
Armelia wants to paint three walls in her family room, wwo walls are 26 feet long by 9 feet wide. The other wall is 18 feet Hong by 9 feet wide. Each gallon of paint covers about 250 square feet. How many gallons of paint should Amella buy to paint the walls?
Answer: Wall 1 & 2 : 26 ft by 9 ft
Wall 3 : 18 ft by 9 ft
Area 1 : 26 ft x 9 ft = 234 ft²
Area 2 : 26 ft x 9 ft = 234 ft²
Area 3 : 18 ft x 9 ft = 162 ft²
Total Area : 234 ft² + 234 ft² + 162 ft² = 630 ft²
1 Gallon = 250 ft²
630 ft² ÷ 250 ft² per gallon = 2.52 gallons
Which one is more
–3\5 or –2/3
Please help
Answer:
-3/5
Step-by-step explanation: