Question Help
The number of kilograms of water in a human body varies directly as the mass of the body. An 87 kg person contains 58 kg of water. How many kilograms of water are
in a 78 kg person?
kg of water are in a 78 kg person
Answer:
52kg
Step-by-step explanation:
use cross multiplication method when encounter problems like these
the sum of 2 times a number (x) and -2 is atleast 8
Answer: x ≥ 5
Step-by-step explanation:
2x - 2 ≥ 8
2x ≥ 10
(hi) :-)
1/3S=9
Three options
A S=3
B. S2/3
C S=27
1/3 times S=9
Answer:
C
Step-by-step explanation:
1/3S=9
multiply 3 on both sides
S=27
Write x² - 6x + 3 in the form (x-a)²+ b.
Answer:
(x + 3)² - 12
Step-by-step explanation:
x²+6x-3
= x²+ 6x + 9 - 12
= (x + 3)² - 12
The form of x² - 6x + 3 can be written as (x-3)² - 6.
What is a quadratic equation?A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.
We are given that;
Equation= x² - 6x + 3
Now,
To write x² - 6x + 3 in the form (x-a)²+ b, we can use the method of completing the square. This involves adding and subtracting a constant term to make the expression a perfect square trinomial. Here are the steps:
Write x² - 6x + 3 as x² - 6x + ___ - ___ + 3, leaving two blanks for the constant term.
To find the constant term, divide the coefficient of x by 2 and square it. In this case, -6/2 = -3 and (-3)² = 9. So we fill in the blanks with 9 and get x² - 6x + 9 - 9 + 3.
Factor the first three terms as a perfect square: (x - 3)² - 9 + 3.
Simplify the last two terms: (x - 3)² - 6.
Compare with the form (x-a)²+ b and identify a and b. In this case, a = 3 and b = -6.
Therefore, by the given equation the answer will be (x-3)² - 6.
Learn more about quadratic equations;
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PLEASE HELP WILL GIVE BRAINLIEST
Find the value of k if it is known that the line y=kx+2 goes through point C(3, -7)
Answer:
-3
Step-by-step explanation:
y=kx+2 (3, -7)
-7=k(3)+2
-7=3k+2
3k=-7-2
3k=-9
k=-9/3
k=-3
Let n be the product of the two smallest 3-digit prime numbers. Find the sum of the digits of n.
Answer:
Step-by-step explanation:
n = 101 × 103 = 10,403
sum of digits = 8
please help me PLEASE PLEASE ASAP
Answer:
5/12
Step-by-step explanation:
multiply by the reciprocal of the second fraction
Answer:
5/12
Step-by-step explanation:
do u need helping inputting the answer?
I thought of a number n I multiplied it by 6. I added 19. I got 29 more than my number. Equation
Answer:
6n + 19 = 29 + n
n = 2
Step-by-step explanation:
your number = n
multiplied by n by 6 (6 * n or 6n)
6n then add 19 (6n +19)
29 more than my number = 29 + n
add it all together:
6n + 19 = 29 + n
when you solve, n = 2
investment A save £160 per month for 2 years. 2.5% interest is added to the total amount saved. Investment B invest £3800. Compound interest is added at 3% each year
Answer:
95.42
Step-by-step explanation:
Investment A:
160*24*1.025=3936
Investment B:
3800(1+.03)^2=4031.42
4031.42-3936= 95.42
Investment B is 95.42 more than investment A.
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given,
investment A save £160 per month for 2 years.
2.5% interest is added to the total amount saved.
Investment A:
160×24×1.025=3936
Investment B:
Investment B invest 3800.
Compound interest is added at 3% each year
Convert 3% to decimal value by dividing 3 by 100.
3/100=0.03
P=A(1+r)t
A is initial deposit, r is rate of interest and t is time
3800(1+0.03)²
3800(1.03)²=3800×1.0609
=4031.42
We need to find how much investment B has more than investment A.
To find this let us find difference between investment A and investment B.
4031.42-3936= 95.42
Hence investment B is 95.42 more than investment A.
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Please answer Right anwer yall
Answer:
I believe that it should be 36.
Step-by-step explanation:
You got that the equation is 1/4 s^2, which I agree with. So plugging in 12, in place of s, you get:
[tex]\frac{1}{4} * 12^{2}[/tex]
[tex]\frac{1}{4} * 144[/tex]
[tex]144/4 = 36[/tex]
What are the steps for solving 6x+2y=4
Answer:
X=4-2y/6
Y=4-6x/2
Step-by-step explanation:
For X:
1) -2y
Once you subtract 2y you are left with 6x=4-2y
2) Divide by 6 on both sides to get x alone
That would give you your answer of X=4-2y/6
For Y:
1) -6x
After subtracting 6x you would have 2y=4+6x
2) Like the steps above, you divide by 2 on both sides and that would give you your answer of Y=4-6x/2
PLEASE HELP MEE THIS IS URGENT
Answer:
B i think
Step-by-step explanation:
I am nit sure but j think do
what are the number of terms?
Answer:
3 terms
Terms are seperated by addition signs that are not in () that is connected to a multiplication sign.
Please help I will give my whole points and mark brainlest
Step-by-step explanation:
What is the area of a circle that has a radius that measures 15 inches?
Answer:
706.5
Step-by-step explanation:
Area= π × 15² = 706.5
Do you believe in love at first sight—or should I walk by again?
Answer:
Thx for free points lol
Step-by-step explanation:
Answer:
walk by again
Step-by-step explanation:
defwb8fvhyvybbeegttbggtbu
3.If x=3, what is the value of 3?
Answer:
is it proper question I am sorry I canot understand
According to records, the amount of precipitation in a certain city on a November day has a mean of 0.10 inches, with a standard deviation of 0.07 inches. What is the probability that the mean daily precipitation will be 0.11 inches or less for a random sample of November days (taken over many years)?
Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.
Answer:
The probability that the mean daily precipitation will be 0.11 inches or less for a random sample of November days
P(X≤ 0.11) = 0.4404
Step-by-step explanation:
Step(i):-
Given that the mean of the Population = 0.10 inches
Given that the standard deviation of the population = 0.07inches
Let 'X' be a random variable in a normal distribution
[tex]Z = \frac{x-mean}{S.D} = \frac{0.11-0.10}{0.07} = 0.1428[/tex]
Step(ii):-
The probability that the mean daily precipitation will be 0.11 inches or less for a random sample of November days
P(X≤ 0.11) = P(Z≤0.1428)
= 1-P(Z≥0.1428)
= 1 - ( 0.5 +A(0.1428)
= 0.5 - A(0.1428)
= 0.5 -0.0596
= 0.4404
Final answer:-
The probability that the mean daily precipitation will be 0.11 inches or less for a random sample of November days
P(X≤ 0.11) = 0.4404
PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
12.56
Step-by-step explanation:
The formula to find the Circumference of a circle is [tex]C=\pi D[/tex] where d is the diameter and c is the circumference.
First, calculate the diameter of the circle by multiplying the radius by 2 and substitute it in for the value of D:
[tex]C=\pi 4[/tex]
Then, multiply pi and the diameter together:
[tex]C=12.56[/tex]
Answer:
12.57
Step-by-step explanation:
trust me
How do I answer this
Answer:
The 4 interior angles in the square are each 90 degrees. The four angles formed by the intersection of the 2 diagonal lines are each 90 degrees. The rest of the angles <PQT, <RQT, etc. Are all 45 degrees.
Answer:
The following angles are 45 degrees: SPT, QPT, PQT, RQT, QRT, SRT, RST, PST.
The following angles are 90 degrees: STP, PTQ, QTR, RTS
Step-by-step explanation:
Notice that it is a square. Since it is a square, any diagonal line drawn from a corner to the opposite corner will bisect the angle at both corners. Since in a square each angle at each corner is 90 degrees, we know that the angles listed above are 45 degrees.
There are multiple ways to arrive at the conclusion that angles STP, PTQ, QTR, RTS are all 90 degrees. The easiest way to arrive at that answer is looking at each triangle. Notice how the square is divided into 4 triangles. Each triangle contains two 45 degree angles. Since the internal angles of each triangle must sum to 180 degrees, this means the last angle is 90 degrees.
Jane has 34 peanut s she divides them into 5groups how many peanuts are there in each group
Anser: there would be 5 groups with six penanuts each and a remainder group with only 4 peanuts
Step-by-step explanation:
since 34/5 gives a remainder
calculate 30/5 which gives you 6
then you would be left with 4 since 30 +4 is 34
Write an equation of a line that passes through the two given points. Your answer should be written in slope-intercept form.
P(-8,-8),q ( 0,0)
Answer:
y = x
Step-by-step explanation:
Find the slope using rise over run (y2 - y1) / (x2 - x1)
Plug in the points:
(y2 - y1) / (x2 - x1)
(-8 - 0) / (-8 - 0)
-8 / -8
= 1
So, the slope is 1.
Plug in the slope and a point into y = mx + b and solve for b:
y = mx + b
-8 = 1(-8) + b
-8 = -8 + b
0 = b
Plug in the slope and y intercept into y = mx + b
y = mx + b
y = 1x + 0
y = x
So, the equation of the line is y = x
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
Answer:
(4,0)
Step-by-step explanation:
what is the square root of 81 times 2
Answer:
18
Step-by-step explanation:
the square root of 81 is 9, because 9x9 is 81.
now we do (9x2)
=18
Answer: It is 9
Step-by-step explanation:
A square root is a number that has to be multiplied by itself to the number your looking for. So, 9 X 9 = 81.
Help with this thing ??
Answer:
1/4
Step-by-step explanation:
I'm not sure if he wants the Dilution factor or the scale but anyway
CBA = 4 C'B'A'
Scale 1/4
ANSWER QUICK FOR BRANLIEST PLEASEEEE!!! There are 4 packs of crayons for every 7 students. How many students can share 16
packs?
HELP FAST IM GIVING BRAINLIST BTW!!!
which is a better deal?
A- 5 bottles of water for $4.00
B- 3 bottles of water for $2.75
Answer:
A- 5 bottles of water for $4.00 is going to be 0.8 for each bottle
B- 3 bottles of water for $2.75 i going to be 0.91 for each bottle
so a is a better deal
Step-by-step explanation:
9 is what percent of 45? Use the table to find the percent.
Shirts Sold
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
45
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
9 is
I
percent of 45.
Answer:
20%
Step-by-step explanation:
When asked, "x is what percent of y?" divide x by y and multiply by 100.
9/45 = 0.2
0.2 * 100 = 20%
Recall that we multiply by 100 to convert decimal to percent.
Step-by-step explanation:
Let x% of 45 be 9 Then
x % of 45 = 9
x / 100 * 45 = 9
45x = 900
x = 900 / 45
x = 20%
the options doesn't matches.
help me quickly pls i’d really appreciate it <3
Answer:
320 grams
Step-by-step explanation:
8 bats can eat 40 grams of insects per night, and we are trying to figure out how many insects 64 bats can eat. 64 bats is 8 times as many bats as 8 bats, and we find this by dividing 64 by 8. This means they will also eat 8 times as much, so we simply have to multiply 40 by 8 to get 320 grams.
Please help!! Please
what do u need help with?
Step-by-step explanation:
I'm in confusion
¯\(°_o)/¯