Answer K= 20/x
Step-by-step explanation:
The value of k in the given linear equation is 20.
What is a linear equation?A linear equation is an equation where the variable (or variables) has the highest power of one.
Given,
310 - (30 × 7)=5 × k
⇒ 310 - 210 = 5k
⇒ 5k = 100
⇒ k = 100/5 = 20
Learn more about linear equation here: https://brainly.com/question/21835898
#Tag #SPJ2
please find the sum or difference of (-37) - (-38)
will give brainliest
Step-by-step explanation:
(-37)-(-38)
=(-37)+38
=1
Write an equation for the line in slope-intercept form.
Answer:
y= 6/5x +0
Step-by-step explanation:
That just be how it is
Answer: y= 3/2 x
Step-by-step explanation:
use y = mx + b
Four friends have
boba tea. They cost
$8 total for four. They
Leave a 15% tip. What
is the total they spent?
they leave a tip of $1.20, the total would be $9.20
Answer:
$9.2
Step-by-step explanation:
Four friends spend 8 dollars. However, they also leave a 15% tip. So, you will have to multiply .15 by 8. However that is not it. After, you have to add the product of that with 8. Which will give you 9.2.
HELP!! no scams or i will report.
Answer:
A (1,0)
B (0, -3)
C (-6, 5)
D (-3, -5)
E (-1, 4)
Step-by-step explanation:
Answer:
A (1,0)
B (0,-3)
C (-6,5)
D (-3,-5)
E (-1,4)
Step-by-step explanation:
Find the area of a rectangle that is 7 cm long and 3 cm wide. You can use the tool to help you solve. 7 cm2 10 cm2 20 cm2 21 cm2
Answer:
21sq
Step-by-step explanation:
multiply the l times the w which would be 3x7 and get 21.
Answer:
21 cm
Step-by-step explanation:
80 is what percent of 120
Answer:
it is 66.67 so 67%
Step-by-step explanation:
:)))))))
Answer:
66.67%
Step-by-step explanation:
"A supplier of digital memory cards claims that no more than 1% of the cards are defective. In a random sample of 600 memory cards, it is found that 3% are defective, but the supplier claims that this is only a sample fluctuation. At the 0.01 level of significance, test the supplier's claim that no more than 1% are defective."
Answer:
Both the values fall in the critical region so we reject H0: p ≤ 0.01 and conclude that the results are significantly different from chance identification and it is not a sample fluctuation.
Step-by-step explanation:
1) Formulate the hypothesis
H0: p ≤ 0.01 against the claim Ha: p > 0.01
2) Choose the significance level ∝= 0.01
3) The test statistics under H0 is
z= x -np /√npq ( without continuity correction)
z= x ± 1/2 -np /√npq ( with continuity correction)
4) the critical region is z> ±2.33 because the alternate hypothesis is stated on greater than basis.
5)Computations:
Z= x -np /√npq ( without continuity correction)
Z= 6- 600( 0.03)/√ 600( 0.03)(0.97)
z= - 2.82 ( without continuity correction)
z= x ± 1/2 -np /√npq ( with continuity correction)
Z= (6-0.5)- 600( 0.03)/√ 600( 0.03)(0.97)
z= -12.5/4.1785
z= -0.29915 ( with continuity correction)
6) Both the values fall in the critical region so we reject H0: p ≤ 0.01 and conclude that the results are significantly different from chance identification and it is not a sample fluctuation.
۔what set builder notation is = (2,3,5,7,11)this p
Given:
The set is:
[tex]\{2,3,5,7,11\}[/tex]
To find:
The set builder notation for the given set.
Solution:
Consider the given set:
[tex]S=\{2,3,5,7,11\}[/tex]
The element of given set are 2, 3, 5, 7, 11 and so on. These area the prime numbers.
If x defines each element of the set then x must belongs to P which is the set of prime numbers. So, the given set can be written as
[tex]S=\{x|x\in P\}[/tex]
Therefore, the set builder notation for the given set is [tex]\{x|x\in P\}[/tex].
Please help me. 4^(x+1)+2^(x+1)+2^x-1=0
Answer:
x = -2Step-by-step explanation:
[tex]4^{x+1}+2^{x+1}+2^x-1=0[/tex][tex]4*2^{2x}+2*2^x+2^x-1=0[/tex]2ˣ = t4t² + 3t - 1 = 04t² + 4t - t - 1 = 04t(t + 1) - (t + 1) = 0(t + 1)(4t - 1) = 0t = -1 (discounted as 2ˣ can't be negative)t = 1/42ˣ = 1/42ˣ = 2⁻²x = -2PLEASE I WILL GIVE BRAINLIEST
Answer:
easy....
Step-by-step explanation:
im in 5th grade.... may i plz still have brainlest???
If a is inversely proportional to x, a=15 when x=25 find the constant of variation, k
Answer:
Step-by-step explanation:
"Inversely proportional to x" in this situation is represented by a = k/x.
Find k:
Let a = 15 and x = 25, then calculate k:
15 = k/25)
Multiplying both sides by 25 yields k = 15(25), or k = 3/5
3
and so a = -----------
5x
The average of 9 scores is x. If the tenth score is 36 points more than x, by how many points will the tenth score raise the average?
Answer:
3.6
Step-by-step explanation:
The average of 9 scores is x.
average = (sum of scores)/(number of scores)
x = (sum of scores)/9
sum of scores = 9x
The sum of the 9 scores is 9x.
The tenth score is 36 more than x, so it is x + 36.
The sum of the 10 scores is 9x + x + 36 = 10x + 36.
The average of the 10 scores is (10x + 36)/10 = x + 3.6
The difference of averages is
x + 3.6 - x = 3.6
Jessicawants to buy a ring for her friend Sarah. She knows Sarah's finger has a diameter of 15mm. The jewelry store sizes their rings by radius. What size ring shouldJessica purchase?
Answer:
14.5
Step-by-step explanation:
.................................
Someone help me please!
Answer:
[tex]50 \leq x \leq 350\\[/tex]
Step-by-step explanation:
The Martins' swimming pool is a square
and is in the center of a square plot that
is 34 meters on a side. They have 1,092 square meters of lawn.
How long is one side of the pool ?
Answer: 8
Step-by-step explanation:
x^2 = (34•34)-1,092
x^2= 1,156-1,092
x^2= 64
x=8
Please answer!
No links. No links to pictures, no fake answers. Please don’t make my day worse than what it is. Please answer correctly thank you!!!
Answer:
I would go with option 4
Step-by-step explanation:
Answer:
[tex]\frac{a}{sinA} = \frac{b}{sinB} = \frac{c}{sinC}[/tex]
[tex]\frac{x}{sin25} = \frac{32}{sin90}[/tex]
[tex]x = \frac{32sin25}{sin90}[/tex]
[tex]x = 13.5[/tex]
Hope this helps! Have a great day... please mark as brainliest :0 :))
Step-by-step explanation:
Below are two parallel lines with a third line intersecting them.
X = ?
Write an equation in slope intercept form of the line that passes through the points (4,13) and (8,18)
A. y=2.5x+3
B. y=1.5x+7
C. y=2x+5
D. y=1.25x+8
Answer:
y=5/4x+8 Answer Choice D).
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(18-13)/(8-4)
m=5/4
y-y1=m(x-x1)
y-13=5/4(x-4)
y-13=5/4x-20/4
y-13=5/4x-5
y=5/4x-5+13
y=5/4x+8
Please answer ASAP I NEED HELP
Answer:
450 cm^3
Step-by-step explanation:
( 1/2 (5+7.5) 6 ) 12
Can yall help me with this!!
Solve Using the Quadratic Formula x2+2x - 40 = -8 -2x
Answer:
x = 4, x= -8
Step-by-step explanation:
need help with this problem
Answer:
it's either b or d.
Step-by-step explanation:
I'm not entirely sure, but its one of those.
Nancy works at Yogurty's for $5.35 an hour. Last week, she worked 30 hours.
a) How much did she earn?
b) Nancy received a 25¢/hour raise this week. She worked 25 hours. How much did she earn?
PLEASE HELP ITS URGENT!!
Answer:
answer is D from what I got
The heights (in inches) of males in the United States are believed to be Normally distributed with mean LaTeX: \muμ. The average height of a random sample of twenty-five American adult males is found to be H = 69.72 inches and the standard deviation of the twenty-five heights is found to be s = 4.15. The standard error of H is = 4.15. A 90% confidence interval for ? is?
help please ASAP ILL GIVE BRAINLIST
Answer:
1) A transformation that is not a rigid motion results in a change in shape size.
2) Translation of -3/6
please teash me how to do
Answer:x=40
Step-by-step explanation: So since we know that AD is parallel to BC We know that M<c and M<a are congruent so we can use this equation to solve for x
2x-20= x+20
+20 +20
2x=x+40
-x -x
x=40
HELP I DONT GET THIS
Two barrels contain equal quantities of honey. From one barrel, 37 gallons of honey are drawn. From the other barrel, 7 gallons of honey are drawn. The quantity remaining in one barrel is now seven times that remaining in the other barrel. How much did each barrel contain at first?
At the start, each barrel has the same amount of honey, so:
Barrel 1 has X gallons
Barrel 2 has X gallons.
from 1, they extract 37 gallos, and from 2 they extract 7 gallons, so now:
Barrel 1 has X - 37
Barrel 2 has X- 7
and now, the quantity in the Barrel 2 is seven times the quantity in the barrel 1, so:
X- 7 = 7*(X - 37)
we need to find X.
X - 7 = 7*X - 37*7 = 7*X - 259
X - 7*X = 7 - 259
-6*X = -252
X = 252/6 = 42
So at the start, each barrel has 42 gallons of honey.
What is the probability of drawing a blue marble twice with replacement