Answer:
-17x+3
Step-by-step explanation:
Answer:
-17x+3
Step-by-step explanation:
=-2x+3(-5x+1)
=-2x-15x+3
=-17x+3
Blood type AB is the rarest blood type, occurring in only 4% of the population in the United States. In Australia, only 1.5% of the population has blood type AB. Suppose a random sample of 50 U.S. residents and 40 Australians is obtained. Consider the random variables described below:
X: the number of U.S. residents with blood type AB
Y: the number of Australians with blood type AB
Required:
What is the probability that exactly 2 of the U.S. residents have blood type AB?
8 percent. Could I please get brainliest?
find the distance between (2,4) and (-2,-4)
Answer:
[tex]8.9444 = \sqrt{80} [/tex]
Step-by-step explanation:
the distance is equal to the magnitude or modulus of the vector between the coordinates,
to find the distance, find the vector then the magnitude,ie
vector=
[tex] \frac{4}{2} - \frac{ - 4}{ - 2 } = \frac{8}{4} [/tex]
distance=
[tex] | \sqrt{{8}^{2} + {4}^{2} } | = | \sqrt{64 + 16 } | \\ | \sqrt{80 } | = \sqrt{80} = 8.944[/tex]
kindly give me a brainliest
Use the formula for simple interest to find the interest rate if a deposit of $1400 earned $490 of interest after 5 years,
Find the value of x if 81=3x
Answer:
here ,
81=3x
or , 81/3=x
or,27=x
hence ,the value of x=27
Answer:
×=27
Step-by-step explanation:
81/3=3×
27=×
hence
×=27
the value of y is 20% more than the value of x. the ratio of x:y = 5
Answer:
x:y = 5:6
Step-by-step explanation:
y = x(20/100) + x
y = x (1/5) + x
Factorize X
y = x (1/5 + 1)
y = x (6/5)
5y = 6x
-----------------------------
ratio x:y = 5:6
The ratio is x:y = 5:6.
What is ratio?A ratio is a comparison between two amounts that is calculated by dividing one amount by the other. The quotient a/b is referred to as the ratio between a and b if a and b are two values of the same sort and with the same units, such that b is not equal to 0. Ratios are represented by the colon symbol (:). As a result, the ratio a/b has no units and is expressed as a: b.
Given:
value of y is 20% more than the value of x
So,
y = x(20/100) + x
y = x (1/5) + x
y = x (1/5 + 1)
y = x (6/5)
5y = 6x
Hence, the ratio is x:y = 5:6.
Learn more about ratio here:
https://brainly.com/question/26974513
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Eight times the sum of 8 and some number is 80. What is the number?
Answer: 8(8+x)=80
Step-by-step explanation: 8 times is shown in parenthesis, 8+x is the sum, and 80 is the answer
A hot-air balloon rises 150 feet every 5 second. Which equation represents the relationship between time and height?
Answer:
y=30x
Step-by-step explanation:
the slope would be the change in height/time so 150/5 which is 30feet/sec
thus using the form y=mx+b and assuming the balloon started on the ground (0) then y=30x
The distance that a person drives at a constant speed varies directly with the amount of time they have been
driving. If, at a particular speed, a person drives 107 miles in two hours, then how far will they drive, at the
same speed, in 14 hours?
Answer:
749 miles
Step-by-step explanation:
I divided 107 by 2 and then multiplied that by 14
a person drives 53.5 at that particular speed so they keep driving that amount of miles each hour so it's 749
The distance they will drive, at the same speed, in 14 hours is 749 miles.
Given the following data:
Distance A = 107 milesTime A = 2 hoursTime B = 14 hoursTo find how far (distance) will they drive, at the same speed, in 14 hours, we would apply direct proportion:
By using direct proportion:
107 miles = 2 hours
X miles = 14 hours
Cross-multiplying, we have:
[tex]2X = 107 \times 14\\\\2X = 1498\\\\X = \frac{1498}{2}[/tex]
X = 749 miles
Read more: https://brainly.com/question/18676621
What is the ratio of all flowers in the vase to daisies?
What is the ratio of daisies to roses?
10. The table below shows coordinate points
that model a proportional relationship. What is
the missing value in the table?
х
0
1
1.5
2
3
5
?
y
0
A. 4.5
B. 5
C. 6
D. 7.5
Answer:
— The table below shows coordinate points that model a proportional relationship. What is the missing value in the table? х 0 1 1.5 2 3 5 ? y
Step-by-step explanation:
is this reletion just a function? Justify your answer. A. Yes, because every x- and y-value is positive. B. no, because two points with the same y-value have different x-values. C. Yes because every x-value corresponds with a single y-value. D. Yes, because the number of x-values is the same as the number of y-values.
Answer:
The element 15 has two arrows pointing to both 7 and 9. This is a clear violation of the requirement to be a function. A function is well behaved, that is, each element in the domain must point to one element in the range. Therefore, this relation is not a function.
Step-by-step explanation:
Btw brainliest me plss
Simplify I) (4+√2) (4-√2)
ii) (√5- √3) whole square
Answer:
(Hope this helps can I pls have brainlist (crown)☺️)
Step-by-step explanation:
in pic
(Credits: Symbolab)
Which of the following numbers could be the probability of an event?
0, 1.22, 0.01, 0.28, -0.49, 1
The numbers that could be a probability of an event are
(Use a comma to separate answers as needed.)
9514 1404 393
Answer:
0, 0.01, 0.28, 1
Step-by-step explanation:
A probability is a non-negative number between 0 and 1, inclusive. The negative value and the one that is greater than 1 must be excluded. They cannot be probabilities.
Possible values of a probability are ...
0, 0.01, 0.28, 1
-2x+y=1 solve with steps
Answer:
x=1 and y=3
Step-by-step explanation:
-2x1=-2
-2+3=1
So this answer makes sense
Answer:
y = 2x + 1
Step-by-step explanation:
Given: -2x+y=1
Add 2x to both sides: y=1+2x
Reorder: y = 2x + 1
I am not sure exactly what you need for this point, but here is the equation in y=mx+b form aka slope-intercept form
m = slope = 2
b = y-intercept = 1
Hope this helps, have a nice day :D
The daily change in barometic pressure for 4 days are: .05, .09, .04, and .18 inches. What is the mean change?
Answer:
It means like swicthing up thing 09, 18, 04
Step-by-step explanation:
I need help please thanks
Russell has been training for the Emerald Valley Race. The first week he trained, he ran 5 days and took the same two routes each day. He ran 2 miles around the football field before
school and ran a longer route through his neighborhood after school. By the end of the week,
Russell had run a total of 30 miles.
Which equation can Russell use to find how many miles, x, he ran each day after school?
5x + 2 = 30
2(x + 5) = 30
5(x + 2) = 30
2x + 5 = 30
How many miles did Russell run each day after school?
Write your answer as a whole number or a simplified fraction.
miles
In maths, Distance is described as the quantity of space between two points, and further calculation can be defined as follows:
Given Expression:
[tex]5x + 2 = 30\\\\2(x + 5) = 30\\\\5(x + 2) = 30\\\\2x + 5 = 30[/tex]
To find:
distance=?
Solution:
[tex]5\ days\ \begin{cases} & \text{ if } \text{before school 2 miles} \\ & \text{ if } \text{after school x miles} \end{cases}[/tex]
[tex]\therefore 5(x+2)=30\\\\[/tex]
[tex]\bold{5(x+2)=30}\\\\\bold{5x+10=30}\\\\\bold{5x=30-10}\\\\\bold{5x=20}\\\\[/tex]
[tex]\bold{x=\frac{20}{4} }\\\\\bold{x=4}[/tex]
Therefore, the final answer is "4 miles".
Learn more:
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use the distributive property to write an expression that is equivelent to 8(a+4).
8(a+4) = ___ a + ____
Expand 8(a+4)
Hence, 8a + 32
Evaluate f(x)=x+6 when x = -2, 0, and 5.
Answer:
f(5) = 11 , f(0) = 6 , f(-2) = 4
Given expression:
f(x) = x + 6
Find:
f(−2), f(0), f(5)
Computation:
f(x) = x + 6
When x = -2
f(-2) = -2 + 6
f(-2) = 4
When x = 0
f(0) = 0 + 6
f(0) = 6
When x = 5
f(5) = 5 + 6
f(5) = 11
Step-by-step explanation:
someone please answer!!!
Answer:
Step-by-step explanation:
1 60
2 120
3 60
4 120
5 30
6 30
For f(x) = px +q and g(x) =
X-9), p70, find (fog)(x) and (g of)(x). Then determine whether (fog)(x) = (gof)(x).
Answer: f(x) = 2x
g(x) = x + 3
First let us find (fog)(x)
(fog)(x) = f(g(x)
= f(x+3)
= 2(x+3)
= 2x + 6
==> (fog)(x) = 2x + 6
Now let us find (gof)(x):
(gof)(x) = g(f(x)
= g(2x)
= 2x + 3
==> (gof)(x) = 2x + 3
Step-by-step explanation:
Does anyone know how to do this? I’m really confused on this question. Also please explain or show work on a piece of paper to get marked =]
Convert 4feet to inches
Answer:
48
Step-by-step explanation:
multiply the length value by 12
the length is 4ft so you multiply it by 12
so
4×12=48
so the answer is 48
Find the percent decrease. Round to the nearest percent.
From 90°F to 70°F
Answer:
22
Step-by-step explanation:
90*x = 70
x = 7/9
x = 78%
100-78 = 22
Increase 100kg by 10%
Answer:
110 kg
Step-by-step explanation
a simple way is to just do 100 plus 10= 110
Simplify
5(x + 3) - x + 2
Answer:
[tex]4x+17[/tex]
Step-by-step explanation:
1) Distribute
[tex]5(x+3)-x+2\\5x+15-x+2[/tex]
2) Add the numbers
[tex]5x+15-x+2\\5x+17-x[/tex]
3) Combine like terms
[tex]5x+17-x\\4x+17[/tex]
Answer:
4x+17
Step-by-step explanation:
So first we are going to have to use the distributive property
so
5*x and 5*3
Which is
5x and 15
So then we have,
5x+15-x+2
Now we just combine like terms
=4x+17
Hope this helps!! :)
a party rental company has chairs and tables for rent. the total cost to rent three chairs and five tables is $52. The total cost to rent 9 chairs and 7 tables is$86. what is the cost to rent each chair and each table?
Answer:
The cost for 1 chair is $2.75 and the cost for 1 table is $8.75.
Step-by-step explanation:
Use the elimination method of linear equations to find your answer.
Our equations for this problem are:
3c+5t=52 and 9c+7t=86
Multiply the entire first equation by -3.
-3(3c+5t=52)
Simplify the equation from above:
-9c-15t=-156
Stack the two equations on top of each other and add/subtract:
-9c-15t=-156
9c+7t=86
You should be left with -8t=-70. Simplify this to find the value of t:
t=8.75
Plug the value of t into any of the original equations and solve for c.
3c+5(8.75)=52
Simplify the equation above:
3c+43.75=52
Subtract 43.75 from both sides of the equation:
3c=8.25
Divide both sides by 3 to get your c value:
c=2.75
Mr.Morton sold bird houses to stores. He started the week with 60. He sold ten to one store, and divided the rest between 5 other stores. How many birdhouses did he sell to each of the other 5 stores
Answer:
10
Step-by-step explanation:
Expand and simplify (x-2)(x-1)
Answer:
(x - 3) x + 2
Step-by-step explanation:
1/4 (2 x - 3)^2 - 1/4
Find the value of x and y
Answer:
x=4
y=2
this is the answer if angle A equal angle N
x=4
y=6
this is the answer is angle A equal angle L
Step-by-step explanation: