Answer:
1st number = 17
2nd number = 23
Step-by-step explanation:
x = 1st number
y = 2nd number
x = y - 6
6x = 10 + 4y
substitution method:
6(y - 6) = 10 + 4y
6y - 36 = 10 + 4y
2y - 36 = 10
2y = 46
y = 23
find 'x':
x = 23 - 6
x = 17
Jamil's car uses , gallons of gasoline to travel 49 miles. At this rate how far can
Jamil's car travel per gallon of gasoline?
A 53
miles
230 miles
12 miles
D 10.5 miles
Answer:
D) 10.5
Step-by-step explanation:
4 2/3 = 14/3
Ratios:
[tex]\frac{14/3}{49} =\frac{1}{x } \\\\\frac{14}{3} x=49\\\\14x=147\\x=10.5[/tex]
what is the answer to: 12 ≥ 2 (1 + x)
Answer:
6 1/5
Step-by-step explanation:
Answer:
[tex]x\le \:5[/tex]
12≥ 2(1+x)
Switch sides
2(1+x)≤ 12
Divide both sides by 2
2(1+x)2 ≤122
Simplify
1+x≤ 6
Subtract 1 from both sides
1+x−1≤ 6−1
Simplify
[tex]x\le \:5[/tex]
Which statements are true about the functions. Picture attached
Answer:
Option 1, 3, 4 are true
Step-by-step explanation:
Answer:
statement 1 3 and 4 are correct
Which one of the following U.S. customary units is closest in volume to I liter?
Answer:
c
Step-by-step explanation:
Quart is one of the following U.S. customary units is closest in volume to 1 liter. Option D is correct.
What is volume?The term "volume" refers to the amount of three-dimensional space taken up by an item or a closed surface. It is denoted by V and its SI unit is in cubic cm.
The relation between the quart and the liter is found as;
1 quarts = 0.94635295 liters
The value in liter is approximately equal to 1. Quart is one of the following U.S. customary units is closest in volume to 1 liter.
Hence,option D is correct.
To learn more about the volume refer:
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Which words represent a positive number?
answer:'+' also means 'add'
It signifies a positive number, as described above, but it also means 'add' or 'plus'. For example 2+3 means 'two plus three' with a result of 5. Here, the plus-sign means addition. The same confusion happens with the minus ( – ) sign.
What is the median for the set of data shown below 45 23 16 78 24
please please i need help i will mark u brill
Answer:
106 - 8h = 34
Whenever a math question says "when h = 9," they mean you substitute this number where h is in the equation.
106 - 8(9) = 34
106 - 72 = 34
34 = 34
This means the fact that h = 9 is a solution for h.
I hope this helps! I would really appreciate it if you would please mark me brainliest! Have a blessed day!
add and write the fraction or mixed number in it's simplest form 2/5+1/4+7/10
Answer:
1 7/20
Step-by-step explanation:
I think that's the answer.
Find the mean low temperature for the 6 days shown below -1,9,-4, -6,5, 3
Answer:
Mean = 1
Step-by-step explanation:
[tex]mean = \frac{ - 1 + 9 - 4 - 6 + 5 + 3}{6} \\ \\ mean = \frac{6}{6} \\ \\ mean = 1[/tex]
I hope that is useful for you :)
Answer:
1
Step-by-step explanation:
Hello, if you ever heard the hey diddle diddle song, it would say that you add and divide for the mean. So lets try that! First, add all the numbers together like this:
-1+9+(-4)+(-6)+5+3=6
Then, you take the number and divide it by the number of numbers in that set. In this case, it would be 6.
6/6=1
That means that the mean of the low temperatures is 1.
please hurry.........................................................................
Answer:
1 4/5 pounds
Step-by-step explanation:
You can check my answer by multiplying it by the total number of loaves. This is because there are a certain number of loaves, and the answer I got was the weight of 1. 1 4/5 * 5 = 9.
What is the best approximation for the area of a semicircle with a diameter of 11.8 feet? Use 3.14
Answer:
109.3
Step-by-step explanation:
The area of a circle is 3.14 multiplied by the radius squared and the radius is the diameter divided by two which is 5.9. so the equation would be 3.14 times 5.9 squared
I need help someone help me out!
[tex]{ \large{ \sf{r {}^{2} = \dfrac{V}{πh} }}}[/tex]
[tex]{ \large{ \sf{ \therefore{r = \sqrt{ \dfrac{V}{πh} } }}}}[/tex]
Option = A is righthelp me pls i don't have many points pls help if you don't believe me go to my acc and look at my points i only have 13
Answer:
1. 14
2. 17.5
3. 60
4. 238
5. 91.4375
6. 58.065
Step-by-step explanation:
Sorry, I'm only doing 6, GOOD LUCK!!!
The ratio 64 to 96 in simplest form is
3
Answer:
nice.
Step-by-step explanation:
A researcher believes that there is a difference in how cautious male stray cats and female stray cats are when approaching people. He knows that the stray cat population is 50% male and 50% female. In order to test this hypothesis, he visits 15 different areas where stray cats live and records the gender of the first cat to approach him. He finds that 11 of the 15 cats that approach him are male. Using a sign test and an alpha of .05: A) What is the null hypothesis
Answer:
The null hypothesis is that there is no difference in the mean number of male and female cats
H₀; μ₂ - μ₁ = 0
Step-by-step explanation:
The given parameters are;
The given percentage of male stray cat population = 50%
The given percentage of female stray cat population = 50%
The number of areas the researcher visits, n = 15
The number of stray male cats he finds = 11
The kind of test to be performed = Sign test
The significance level, α = 0.05
A) Therefore the null hypothesis is H₀; μ₂ - μ₁ = 0
The alternative hypothesis is Hₐ; μ₂ - μ₁ ≠ 0.
Consider the functions shown on the graph. A coordinate grid with two lines. One line labeled f(x) and passes through (negative 3, 1), (0, 1), and point (1.5, 1). The second line is labeled g(x) and passes through point (0, negative 1), point (1.5, 1), and point (3, 3). What is the best approximation for the input value when f(x)=g(x)?
Answer:
1.5, C
Step-by-step explanation:
Took the test.
Complete the missing value in the solution to the equation.y=-2x+4
A rectangle measures 2 2 /3 inches by 1 5/ 9 inches. What is its area?
The area of the rectangle is A = 4 4/27 inches²
What is the Area of a Rectangle?The area of the rectangle is given by the product of the length of the rectangle and the width of the rectangle
Area of Rectangle = Length x Width
Given data ,
Let the area of the rectangle be represented as A
Let the length of the rectangle be L = 2 2/3 inches
Let the width of the rectangle be W = 1 5/9 inches
So , Area of Rectangle = Length x Width
On simplifying , we get
Area of rectangle A = 2 2/3 inches x 1 5/9 inches
A = ( 8/3 ) ( 14/9 )
A = ( 112/27 )
On further simplification , we get
A = 4 4/27 inches²
Hence , the area of rectangle is A = 4 4/27 inches²
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What is the answer please help no links I will report
Answer choices
35%
48%
52%
Answer:
Step-by-step explanation:
T-Ball 52% Soccer 48% Basketball 35%
Solve the system of equations. 2 x − 6 y = 5 x + y = 2 no solution ( 17 8 , − 1 8 )
Answer:
it seems you have made a typo
Step-by-step explanation:
A roller coaster car starts at the loading platform, rises 30.4 meters, and then takes a steep dive of 50.4 meters into a valley. Plot the value of the altitude of the car after taking the steep dive directly on the vertical number line. Assume the platform is at an altitude of O meters. Drawing Tools Click on a tool to begin drawing. Delete Undo Reset
Answer: the answer is 2.5 meters long
Step-by-step explanation:
Rule 1: Add 7 starting from 0. Rule 2: Multiply by 2 starting from 8. Select the option that correctly shows the first 5 terms of each sequence.
Question 5 options:
First sequence: 0, 6, 12, 18, 24 and second sequence: 0, 8, 16, 32, 64
First sequence: 0, 7, 14, 21, 28 and second sequence: 8, 16, 32, 64, 128
First sequence: 0, 7, 14, 21, 28 and second sequence: 8, 14, 28, 56, 112
First sequence: 14, 21, 28, 35, 42 and second sequence: 8, 16, 32, 64, 128
Answer:
First sequence: 0, 7, 14, 21, 28 and second sequence: 8, 16, 32, 64, 128
Answer:
First sequence: 0, 7, 14, 21, 28 and second sequence: 8, 16, 32, 64, 128
Step-by-step explanation:
I Need Help ;-; pls its timed
A rectangle is shown on a coordinate plane with vertices A(Negative 4, 8), B(1, 8), C(1, Negative 1), and D(Negative 4, Negative 1).
On a coordinate plane, a rectangle has 4 points. Point A is (negative 4, 8), point B is (1, 8), point C is (1, negative 1), point D is (negative 4, negative 1).
What are the dimensions of the rectangle?
The base is 4 units and the height is 9 units.
The base is 5 units and the height is 7 units.
The base is 5 units and the height is 9 units.
The base is 9 units and the height is 3 units.
Answer:
The correct answer is the third option
Step-by-step explanation:
I used a graphing calculator and also did L(W). But, the length (height) was 9 and (base) width 5
A pencil box is in the shape of a right rectangular prism and filled with unit cubes as shown below. Each unit cube has a length of 1 centimeter (cm). What is the volume of the pencil box?
A - 20 square centimeters
B - 36 cubic centimeters
C - 240 square centimeters
D - 480 cubic centimeters
Answer:480
multiply the L W H
In a random sample of 42 Democrats from one city, 10 approved of the mayor's performance. In a random sample of 58 Republicans from the city, 12 approved of the mayor's performance. Find a 90% confidence interval for the difference between the proportions of Democrats and Republicans who approve of the mayor's performance.
Answer:
The 90% confidence interval for the difference between the proportions of Democrats and Republicans who approve of the mayor's performance is (-0.1078, 0.1702).
Step-by-step explanation:
Before building the confidence interval, we need to understand the central limit theorem and subtraction of normal variables.
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.
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]
Subtraction of normal variables:
When two normal variables are subtracted, the mean is the subtraction of the means while the standard deviation is the square root of the sum of the variances.
In a random sample of 42 Democrats from one city, 10 approved of the mayor's performance.
This means that:
[tex]p_D = \frac{10}{42} = 0.2381, s_D = \sqrt{\frac{0.2381*(1-0.2381)}{42}} = 0.0657[/tex]
In a random sample of 58 Republicans from the city, 12 approved of the mayor's performance.
This means that:
[tex]p_R = \frac{12}{58} = 0.2069, s_R = \sqrt{\frac{0.2069*(1-0.2069)}{58}} = 0.0532[/tex]
Distribution of the difference:
[tex]p = p_D - p_R = 0.2381 - 0.2069 = 0.0312[/tex]
[tex]s = \sqrt{0.0657^2+0.0532^2} = 0.0845[/tex]
Confidence interval:
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.9}{2} = 0.05[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.05 = 0.95[/tex], so Z = 1.645.
Now, find the margin of error M as such
[tex]M = zs[/tex]
[tex]M = 1.645*0.0845 = 0.139[/tex]
The lower end of the interval is the sample mean subtracted by M. So it is 0.0312 - 0.139 = -0.1078
The upper end of the interval is the sample mean added to M. So it is 0.0312 + 0.139 = 0.1702
The 90% confidence interval for the difference between the proportions of Democrats and Republicans who approve of the mayor's performance is (-0.1078, 0.1702).
2+2+2+2+67 I really need help
Answer: the answer is 75
Step-by-step explanation:
67 x 4
Help me please. I need it rn
Answer:
We have
selling price=Discount + sales price
discount=discount rate×selling price.
discount=discount /selling price ×100%
Sales price =selling price - discount
Mark of price=mark up price rate ×original price
Selling price:mark of price + original price
commission amount=commission rate ×total sales
simple interest=principal amount ×rate×time/100
Which of these nets will not form closed cubes?
Please help me
Answer:
From left to right: 1, 6, and 7
Step-by-step explanation:
Answer:
The first, sixth, and seventh.
Step-by-step explanation:
If f(x)=x^2-1 Find f(-3) f(0) f(2) f(a) and f(a+1) first to answer gets brainliest
here you go, hope this is helpful!
PLEASE HELP ME :C ...
Answer:
B) a²-(2*4)
Step-by-step explanation:
Since we are looking for the gray area only, we need to find the total area of the figure, but subtract that from the area of the unshaded area.
The total area of the figure is a*a=a²
The area of the unshaded figure is 2*4=8 units^2
This means the gray area is a²-(2*4) units^2, making B correct
