Answer:
[tex]y = 15.5[/tex]
Step-by-step explanation:
Given
[tex]Total\ Distance = 20km[/tex]
[tex]Walks\ Hours= \frac{3}{2}\ hours[/tex]
[tex]Walks\ Rate = \frac{3km}{1\ hour}[/tex]
Required
Determine the distance (y) covered by his car
First, we calculate the distance walked.
This is calculated as follows;
[tex]Distance = Walk\ Hours * Walk\ Rate[/tex]
[tex]Distance = \frac{3}{2}\ hours * \frac{3km}{1\ hour}[/tex]
[tex]Distance = \frac{3}{2}* 3km[/tex]
[tex]Distance = \frac{3* 3km}{2}[/tex]
[tex]Distance = \frac{9km}{2}[/tex]
[tex]Distance = 4.5km[/tex]
This means that he walked 4.5 km
The total distance can be expressed as a sum of distance covered while walking and distance covered by car.
i.e.
[tex]Walk + Car = Total[/tex]
Make Car the subject
[tex]Car = Total - Walk[/tex]
This gives
[tex]y = 20 - 4.5[/tex]
[tex]y = 15.5[/tex]
Hence, his car travelled 15.5km
( please explain it to me!) 7. Wei's mark on a test was 39. This
mark was 60%. What was the total
possible mark?
Answer:
65
Step-by-step explanation:
Since 39 is equal to 60%, and 60% is also equal to 60/100, then 39/x (x is the total we are solving for) is equal to 60/100.
Cross multiply so 39/x = 60/100
39*100 = 60x
3900 = 60x (divide both sides by 60)
65 = x
What is the measure of the smallest angle in degrees?
Answer:
Step-by-step explanation:
2x-6+3x+5+2x+20=180
7x=180-19=161
x=161/7=23
angles are 2×23-6,3×23+5,2×23+20
or 40,74,86
smallest angle=40°
El suplemento del angulo T es 4 veces la medida del angulo T
Answer:;0
Step-by-step explanation:
Lol
A florist has ordered 632 roses for Valentine's Day. If the roses are divided into 50 bouquets, how many roses will each bouquet
have, and how many roses will be left over?
Answer:
I believe each bouquet of roses will have 12 roses, and 32 roses will be left.
Please help me solve this :)
I will give Brainlst !!
if f(x) = x^2 + x , find f(-3) a)-12 b)3 c)6
A triangle on a sphere could have
degrees.
Can someone help me on these questions?
Answer:
I can give you a few of them, sorry
Step-by-step explanation:
5) obtuse 6)straight 7)right 9) 24°
What expression is equivalent to 12y + (7y)(3)
Answer:
I got 33y
Step-by-step explanation:
hi if its right but here
Answer:
57y
Step-by-step explanation:
A customer purchase aced items in your store totaling $12.64. They hand you three $5.00 bills. How much change would you owe them?
The change would you owe them is : 2.528
We have the following information available from the question is:
A customer purchase aced items in your store totaling $12.64.
They hand you three $5.00 bills.
We have to find the how much change would you owe them?
Now, According to the question:
The change would you owe them is :
Then, Divide the store totaling bill is $12.64 by $5.00 bills.
We get :
=> $12.64 ÷ %5.00
=> 2.528
Learn more about Divide at:
https://brainly.com/question/17960604
#SPJ2
PLZ HELP WILL GIVE BRAINLIEST
Answer:
A) C=6t
Step-by-step explanation:
According to a survey conducted by Deloitte in 2017, 0.4702 of U.S. smartphone owners have made an effort to limit their phone use in the past. In a sample of 54 randomly selected U.S. smartphone owners, what is the probability that between 22 and 29 (inclusively) will have attempted to limit their cell phone use in the past?
1) 0.0241.
2) 0.1703.
3) 0.8779.
4) 0.0483.
5) 0.1221.
Answer: 0.628
Step-by-step explanation:
Probability of U.S. smartphone owners have made an effort to limit their phone use in the past : p = 0.4702
Sample size : n= 54
Mean : [tex]\mu =(54)(0.4702)=25.39[/tex]
Standard deviation:
[tex]\sigma=\sqrt{(54)(0.4702)}=\sqrt{25.39}\\\\\approx5.039[/tex]
The probability that between 22 and 29 (inclusively) will have attempted to limit their cell phone use in the past will be :
[tex]P(22\leq x\leq29)=P(21<x<30)=P(\dfrac{21-25.39}{5.039}<\dfrac{X-\mu}{\sigma}<\dfrac{30-25.39}{5.039})\\\\=P(-0.8712<z<0.914864)\ \ \ \ [z=\dfrac{X-\mu}{\sigma}]\\\\=P(z<0.914864)-P(z<-0.8712)\\\\=P(z<0.914864)-(1-P(z<0.8712))\\\\=0.8198685-(1-0.8081775)\ \ \ [\text{ By p-value table}]\\\\=0.628046[/tex]
Hence, the required probability = 0.628
using the order of operations, what should be done first to evaluate 8² + 10 (-5) (3) - 5?
A. Subtract 5 From 3.
B. Divide 10 by -5.
C. Add 6 and 10.
D. Evaluate 8².
Answer:
D
Step-by-step explanation:
A grocery store has bananas on sale for 2 pounds for $1.50. What is the cost of 6 pounds of bananas?
Answer:
$4.50
Step-by-step explanation:
6 / 2 = 3
$1.50 x 3 = $4.50
helpppppp meeeeeeeeee dadddyyyyy
Answer:
4m-3 would be the answer
find the value of x then classify the triangle by its angles
Answer:
x = 134°
Step-by-step explanation:
Let
[tex]\angle A=64^{\circ}\\\\\angle B =70^{\circ}[/tex]
We need to find the value of x.
We can see from the figure that x is exterior angle. To find x we can use exterior angle theorem. According to this theorem,
[tex]x=\angle A+\angle B\\\\x=64+70\\\\x=134^{\circ}[/tex]
Hence, the value of x is 134°
There are 3 green marbles and 15 blue marbles in a bag. What is the ratio of green marbles to total number of marbles?
Select all the equivalent ratios that represent this relationship.
3:15
1:6
2:12
1:5
3:18
2:10
Answer:
3:15
1:5
Step-by-step explanation:
Answer:
3:15 and 1:5
Step-by-step explanation:
Hope this helped ^^✨
Will mark brainliest.
Answer:
integer
natural
whole
rational
Step-by-step explanation:
integer
natural
rational
real
whole
What is 1/32 as a decimal
Answer:
0.03125
Hope this helps! :)
0.03125 is the answer :) hope it helped
The crew of a garbage truck takes 5 hours to empty all the bins in one neighborhood on pickup day. The city assigned a second garbage truck to this neighborhood. During their training, it took the crew from the second truck 8 hours to empty all the bins.
Answer:62% Step-by-step explanation:
I NEED THE ANSWER ASAP PLZ!!!!!!
Answer:
its D trust me okkkkkkk
I think its A
I wouldn't go with i say tho
I need help please and thank you 50 points and brain thing
Answer:
this is all correct btw love u baby
Step-by-step explanation:
a b c
<A opposite adjacent hypoth
<B adjacent opposite hypoth
What is 218,742 rounded to the nearest hundred thousand?
Answer:
200,000
Step-by-step explanation:
its easy and simple lol
Answer:219,000
Step-by-step explanation: 7 is higher than 5 so you round it positively :)
What is the slope of the graph of
y = -3x + 2?
Answer: -3
Step-by-step explanation:
WILL GIVE BRAINLEST PLZZZ HELP MEEE
Answer:
i think its 3
Step-by-step explanation:
thats the only one where the reflection is on the correct axis
The baby giraffe weighed 185 pounds at birth. He gained weight at a steady rate for the first 9 months until his weight reached 644 pounds. How much did he gain each month? Write an equation and solve.
Answer:71.56
Step-by-step explanation:
The half-life of cesium-137 is 30 years. Suppose we have a 20 mg sample.
a. Find the mass (in mg) that remains after t years.
b. How much of the sample (in mg) remains after 20 years?
c. After how long will only 1 mg remain?
Answer:
(a) A = (20mg)/(2^(t/30))
(b) 12.6mg
(c) 129.6years
Step-by-step explanation:
To calculate the amount remaining after a number of half-lives, n, we can make use of:
[tex]A = \frac{B}{2^n}[/tex]
Where A = amount remaining
B = initial amount
[tex]n = \frac{t}{t_{0.5}}[/tex]
(a) A = (20mg)/(2^(t/30))
(b) Mass after 20years
A = (20mg)/(2^(20/30)) ≈ 12.6mg
(c) After how long will only 1mg remain:
1mg = (20mg)/(2^(t/30))
[tex]20mg = {2^{\frac{t}{30}}[/tex]
Taking log of both sides we have:
Log(20) = (t/30)log(2)
t/30 = (log(20))/(log(2)) ≈ 4.3
t/30 = 4.3
t = 30 x 4.3 ≈ 129.6years.
is 33 prime or composite Explain
Answer:
33 is composite
Step-by-step explanation:Because its factors are 1, 3, 11, 33
What's is the quotient?
-4 1/3
____
-3/4
Thank you please answer
Answer:
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
Step-by-step explanation:
Answer:
5 7/9 (5 and 7/9)
Step-by-step explanation:
-4 1/3 divided by -3/4
= (-4 1/3) / ( -3/4)
= (-13/3) / (-3/4)
= (-13/3) * (-4/3)
= 52/9
= 5 7/9
Tickets at the basketball game are 2:50 each: complete table based on cost of basketball game tickets
Answer:
0)2.50 2)5.00 4)10.00 6)15.00
Step-by-step explanation: