Answer:
38
Step-by-step explanation:
Since 19 is 50% of x, we multiply it by two
19 x 2 = 38
4 boys have a mean height of 162cm.Another boy with a height of 165cm joins them.What is the new mean height?
Answer: 162.6cm
Step-by-step explanation:
4 boys have a mean height of 162cm. Their total height will be the average multiplied by the number of boys which will be:
= 162 × 4
= 648cm
A new boy with height of 165cm joined. This means that we now have 5 boys and their total height will be:
= 648cm + 165cm
= 813cm
The new mean height will be:
= Total height / Number of boys
= 813 / 5
= 162.6cm
How do i get from 7 to 35?
Answer:
Step-by-step explanation:
I fu-ck-ed my girl-friend real good
Karen and Kevin collect coins. Karen has x coins. Kevin has 3 fewer than 6 times the number of coins that Karen has.
I can make an equation for this.
(6 times X) -3
-Ɽ3₮Ɽ0 Ⱬ3Ɽ0
Answer:
The other person is right.
help!! what’s the equation for the green line.
Answer:
y=x-3
Step-by-step explanation:
slope intercept form equation is y=mx+b
b is the y intercept(where it crosses on the y-axis)
b=-3
m is the slope
slope is rise over run (start from -3)
slope is 3 over 3 (count up 3 from -3, count right 3)
3 over 3 is 1
1x is the same as x
final answer y=x-3
hope this helped
can yall plz help and show work
Answer:
#4: ≤
Step-by-step explanation:
.........????????????????????????
Answer:
-5: Real, Rational, Integer
9: Real, Rational, Integer, Whole, Natural
1/8: Real, Rational
0: Real, Rational, Integer, Whole
12/3: Real, Rational, Integer, Whole, Natural
9.5: Real, Rational
1.23659123544781...: Real, Irrational
2.888..: Real, Rational
Let me know if this helps!
help me! i’ll give u brainliest
Answer:
A.3(z-5)
Step-by-step explanation:
3z-15
3×z = 3z
3×5=15
1cm 6cm is equal to?
10- Every time we...............
to that restaurant, my stomach gets upset.
went.
have gone.
will go.
go
Answer:
Step-by-step explanation:
Went is the correct answer
WHat is 75x6-8+7-60+9/6x 1-8+8x0=?
Answer:
so basically it would be
Step-by-step explanation:
0
0
0
0
0
The variables x and y are proportional. Use the values to find the constant of proportionality. Then write an equation that relates x and y. Write any fractions in the simplest form. When y=20 , x=12.
Given:
y is proportional to x.
y=20 and x=12.
To find:
The constant of proportionality and the equation for the proportional relationship.
Solution:
y is proportional to x.
[tex]y\propto x[/tex]
[tex]y=kx[/tex] ...(i)
Where, k is the constant of proportionality.
Putting y=20 and x=12, we get
[tex]20=k(12)[/tex]
[tex]\dfrac{20}{12}=k[/tex]
[tex]\dfrac{5}{3}=k[/tex]
Putting [tex]k=\dfrac{5}{3}[/tex] in (i), we get
[tex]y=\dfrac{5}{3}x[/tex]
Therefore, the contestant of proportionality is [tex]k=\dfrac{5}{3}[/tex] and the equation for the proportional relationship is [tex]y=\dfrac{5}{3}x[/tex].
Will give brainliest!! Please help
Answer:
2.67m
Step-by-step explanation:
Find the scale factor= 5/3
times 1.6 by 5/3 = 2.67
A car travels at an average rate of speed of 75 miles per hour. How many hours would it take you to
go 450 miles? Need help
Answer:
6 hours
Step-by-step explanation:
75 x 6 = 450
Please help me with this sheet asap!!!!b
Step-by-step explanation:
1)
SA= 2 (Length x Breadth + breadth x height + Length x height)
SA= 2(2*5+5*6+6*2)=2(10+30+12)=104cm^2
2)
2(3*4+4*5+5*3)= 2(12+20+15)=94cm^2
3)
2(7*9+9*12+12*7)=2(63+108+84)= 510cm^2
4)
SA=
[tex]A=2πrh+2π {r}^{2}
[tex]A=2πrh+2π {r}^{2} [/tex]
= 2π 6*5+2π6*6= 188.495+226.194
SA= 414.689 cm^2
5)
2π7*4+2π*4*4=
SA=276.46 cm^2
6)
2π6*4+2π*4*4=
SA= 251.33 cm^2
7)
(3*4)/2=6
(3*4)/2=6
(3*8)=24
4*8=32
8*5=40
SA =6+6+24+32+40=108 cm^2
8)
(6*8)/2=24
(6*8)/2=24
6*12=72
8*12=96
10*12=120
SA= 24+24+72+96+120= 336 cm^2
9)
(5*12)/2=30
(5*12)/2=30
5*8=40
12*8=96
13*8=104
SA= 30+30+40+96+104= 300 cm^2
Which model represents 3divided by 1/4
Answer:
the model should or would show twelve
Step-by-step explanation:
In a group of 20 students, 7 study both Art and Biology.
5 study Biology but not Art.
8 study neither subject.
Given that a randomly selected student studies Art, what is the probability the student studies Art and Biology?
Answer:
Step-by-step explanation:
A + B = 7
(Not A) + B = 5
(Not A) + (Not B) = 8
(Not A) = ((Not A) + B) + ((Not A) + (Not B) = 13
A = 20 - (Not A) = 7
Prob (A + B) given (A)
Prob (A+B) || A = (7/20) / (7/20)
Prob (A + B) || A = 1
What is 7.1x10^-2 in standard form
Answer:
0.071
Step-by-step explanation:
since its minus power then you go backwards by 2 decimal points because its -²
is this a positive linear, negative linear no association or non-linear.
i will give brainlest if answered correctly
Answer:
no association
Step-by-step explanation:
it's obviously not a positive or negative linear, and i'm sure non-linear graphs don't look like that
Simplify 4x × 5y
i really need halp quick!
Answer:
Step-by-step explanation:
Multiply the constants and the variables
(4*5)(x*y) = 20xy
5(7x) in standard form?
Answer:
35x
Step-by-step explanation:
Take 7 times 5 and you get 35c
Answer:
35x
Step-by-step explanation:
Multiply 5*7 and add the x to the end = 35 x
Hope this helps :)
Please help me :) please
Answer:
2r +3
Step-by-step explanation:
If Riad is r than double that is 2r, but Francis also has 3 more than this so it is
2r +3
Answer:
2r+3
Step-by-step explanation:
I hope this helped!
this math question is very hard
Answer:
366.5191425 rad/s
Step-by-step explanation:
9.5492965964254 ÷ 3500
hope this helps :)
Answer:
366.5191425 rad/s
Step-by-step explanation:
It took a while to solve this
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the
time after launch, x in seconds, by the given equation. Using this equation, find the
maximum height reached by the rocket, to the nearest tenth of a foot.
y = -16x2 + 160x + 51
Answer:
451
Step-by-step explanation:
on a calculator go to y= and type the equation in and then go to the table.
Based on this picture, if ∠3 = 50˚then what is m∠8?
SHOW WORK PLEASE
Which answer matches the description?
The answer should be 15-(50÷10)
The angle of depression from a descending airplane to the control tower below is 60∘.
If the plane is 35,000 feet above the ground, approximately what is the plane's horizontal distance from the control tower?
A) 70,000
B) 20,207
C) 60,622
D) 24,749
Answer:
The answer is B) 20,207 ft
Step-by-step explanation:
can you please help me??
help i am losttttttttt
Answer:
x^8
Step-by-step explanation:
hope this helps
In the town of Pleasantville, a poll of 340 residents revealed that 289 residents were opposed to the proposed changes to the town’s zoning laws. We want to use this information to construct and interpret a 90% confidence interval for the true proportion of all Pleasantville residents who are opposed to the proposed changes to the town’s zoning laws. Assume that the population of Pleasantville is over 10,000
Step-by-step explanation:
sorry I don't know the answer
HELP I NEED HELP ASAP
During which interval did the tomato plant grow the fastest?
A. Day 4 to Day 6
B. Day 8 to Day 10
C. Day 6 to Day 8
D. Day 10 to Day 12