Answer:
104 = 10,000 x 1.3 = 13,000
Step-by-step explanation:
step 1
To find a, take the number and move a decimal place to the right one position.
Original Number: 13,000
New Number: 1.3000
Step 2
Now, to find b, count how many places to the right of the decimal.
New Number: 1 . 3 0 0 0
Decimal Count: 1 2 3 4
There are 4 places to the right of the decimal place.
Step 3
Building upon what we know above, we can now reconstruct the number into scientific notation.
Remember, the notation is: a x 10b
a = 1.3 (Please notice any zeroes on the end have been removed)
b = 4
Now the whole thing:
1.3 x 104
Step 4
Check your work:
104 = 10,000 x 1.3 = 13,000
Eliana travels at an average speed of 50 mph for 60 miles.
Without stopping, Eliana then travels 130 miles in 2.5 hours.
Find her average speed for the entire journey to 2 dp
Answer:
51.35 mph to the nearest hundredth.
Step-by-step explanation:
The time she takes to travel 60 miles = distance / average speed
= 60/50 = 1.2 hours.
Total time taken = 1.2 + 2.5
= 3.7 hours.
Total distance travelled = 60 + 130
= 190 miles.
Therefore average speed for the whole journey
= 190 / 3.7
= 51.35135 mph.
The endpoints of ST are - 6 and 2. Find the coordinate of the midpoint M.
The coordinate of the midpoint M is what?
Answer: -2
Step-by-step explanation:
The coordinate of the midpoint M is - 2
The endpoints of ST = - 6 and 2
The midpoint M, can be obtained using the relation :
M = (x1 + x2) / 2
The endpoints x1 = -6 and x2 = 2
Hence, M = (-6 + 2) / 2
M = - 4 / 2
M = - 2
The midpoint is - 2
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5.346 - 2.289= 3.057
SHOW WORK!!!!
WILL GIVE BRAINLIEST PLEASE
Please give an explanation as well as an answer :)
Answer: It is 10 because there are 2 other faces and 8+2=10
Step-by-step explanation:
Need help please don’t know what to do here
Answer:
Down below
Step-by-step explanation:
a. The range of y = sinθ is [-1,1]
b. The period of y = cosθ is 2π
c. The asymptotes of y = tanθ are -π2, π2, πn
d. The amplitude of y = sinθ is 1
e. The period of y = tanθ is π
f. The max value of y = cosθ is 1
a sports car accelerates from rest to 26.8m/s 60 mi/h) in 5.1 seconds what is the acceleration of the car
Answer:
136.6 m per second squared
Step-by-step explanation:
acceleration = change in velocity×time
= 26.8×5.1
=136.6 m per sec squared
if the square of x is 5, then the square of 4x will be?
a) 400
b) 80
c) 60
d)20
Answer:
OPTION B: 80
SEE THE IMAGE FOR SOLUTION
What is 5y - 4 (x-y)
Answer:
− 4 + 9
Step-by-step explanation:
PLSS HELP ASAP!!!
I need to know where she went wrong in solving the equation
What is the exact volumchof the cylinder? Enter your answer in terms of t, in the box
Step-by-step explanation:
Solution,
Radius=5 cm
Height=15 cm
Volume of a cylinder=πr²h
=22/7×(5)²×15
=1,178.571429
Step-by-step explanation:
Volume of cylinder = πr²h
Volume = π × (5)² × 15
Volume = π × 25 × 15
Volume = π × 375
Volume = 375π cm³
5) Emily woks Monday through Friday at a rate of $16.12 per hour. She takes a 1-hour lunch break. If she
clocks in each day at 6:15 A.M. and leaves at 4:15 P.M., what is her total pay for the week? (show your
work)
Answer: $725.40
Step-by-step explanation:
6:15A.M. - 4:15 P.M. = 10 hours - 1 hour lunch = 9 hours/day
$16.12hr*9 hours = $145.08 per day
Monday thru Friday = 5 days
$145.08 * 5 = $725.40 per week
Write
3
_
6
in lowest terms.
Answer:
1/2
Step-by-step explanation:
3 is half of 6 so the smallest term would be 1/2.
A box contains $8.15 in nickles, dimes, and
quarters. There are 47 coins in all, and the sum
of the number of nickles and dimes is 3 less than
the number of quarters. Define your variables
and then create the three system of equations to
represent this situation.
Answer:
45 nickels
30 quarters
60 dimes
15 pennies
Step-by-step explanation:
Quarters:
45÷3=15
15×2=30
Dimes:
30×2=60
Pennies:
60-45=15
Answer:
Step-by-step explanation:
Hello,
So you are gonna have 32 quarters.
One dime and one nickle.
A garden has an area of 75 square feet. What is the closest whole number to the length of each side of the garden?
Answer:
9 feet
Step-by-step explanation:
this is asking for one length of the sides of the garden. using key words, such as ~squared~ we can conclude that the shape of the garden is in fact a square, therefore, all sides will be equal. 9x9 would be the equation used, and even then the number is too large. all of the other options are larger therefore I don't think they are your answer.
simplify 6 (3 5/6 - 1 1/4)
Answer:
Step-by-step explanation:
6(3 5/6 -1 1/4)
3 5/6 - 1 1/4 =
3 10/12 - 1 3/12 =
2 7/12 * 6 =
(24+7/12 =
31/12*6)
186/12=
15 1/2
(12*15 =180 186-180=6 [15 6/12 = 15 1/2])
Edit: Steps janky
How mang feet are in 3.76 km? Show ur solution
formula: multiply the value in kilometers by the conversion '3280. 839895
Step-by-step explanation:
so, 3.76 kilometers =3.6× 3280. 839895 =12335.96 feets
evaluate each expression 5(6+2)
Answer:
40
Step-by-step explanation:
First, do the equation in the parentheses
5(6+2)
5(8)
then multiply
5 * 8 = 40
Answer:
40
Step-by-step explanation:
5(6+2)
Parentheses first
5(8)
Multiply
40
State the property of real numbers that is being illustrated.
(7⋅8)⋅4=7⋅(8⋅4)
Choose the correct answer below.
A. commutative property of multiplication
B. multiplicative inverse property
C. associative property of multiplication
D. multiplication property of zero
E. multiplicative identity
Select all that apply
Answer:
For both sets of data, the median is equal to the mean.
The interquartile range (IQR) is greater for M's classes than J's classes.
Step-by-step explanation:
J's Classes:
23, 25, 27, 28, 32
Median: 27
Mean: 27
Mean Absolute Deviation: 2.4
Interquartile Range: 3
M's Classes:
20, 24, 26, 29, 31
Median: 26
Mean: 26
Mean Absolute Deviation: 3.2
Interquartile Range: 5
Jonah has a yearly net income of $12,000. He wants to rent an apartment that costs $1,000/month. Can Jonah afford this apartment? Why or why not?
Answer:
No.
Step-by-step explanation:
His rent for the year will be 1000 * 12 = $12,000 which is the same as his income!. No money left for food, travel and other expenses.
22=4(x+3)-5
Round to the nearest tenth
Answer:
4
Step-by-step explanation:
22=4(x+3)-5
22+5=4(x+3)-5+5
27=4(x+3)
27/4=4(x+3)/4
27/4=x+3
(27/4)-3=x+3-3
x=(27/4)-3
x=15/4
x=3.75
x=4
Paul is 6 times as old as his brother. Paul is 12 years old. How old is his brother? Show work
Answer:
2 years
Step by step explanation:
Let Paul's brother's age be x years.
Paul is 6 times as old as hus brother so, his age will be 6x.
According to question, Paul's age is 12 years so,
6x=12
or, x=12/6
or, x=2
Hence, his brother is 2 years old.
The age of paul's brother will be 2 years.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
It is given that Paul is 6 times as old as his brother. Paul is 12 years old. The age will be calculated as below:-
Let Paul's brother's age be x years.
Paul is 6 times as old as his brother so, his age will be 6x.
According to the question, Paul's age is 12 years so,
6x=12
x=12/6
x=2
Hence, his brother is 2 years old.
To know more about expression follow
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Solve for y.
y - 12 = -10
y = 2
y = -22
y = 22
y = -2
Answer:
y = 2
because when you transpose -12 it changes the sign it become positive
Over a year, Andy placed 880 phone calls. When he looked at his yearly call log, he noticed that all the
calls went to 11 phone numbers.
If he made the same number of calls to each of the numbers, how many times did he call each
number?
number?
george had $6.20 less than Jerry . After Jerry spent $15.60 , George had 4 times as much money as Jerry (a) How much money did George have ? (b)How much money did the 2 boys have at first ?
Answer:
George had $10.95
Jerry had $17.15
HELP PLEASE I NEED IT BY TOMORROW!!! WORTH 50 points
Answer:
I hope it will help you a lot.
Do the calculations and round the answers to the correct place (using the rules for calculating significant digits): 4.8754 x 3.2
Answer: The answer I got is 15.6
-28 + 2x = -18
x=? Solve for x
Answer:
x = 5
Step-by-step explanation:
-28 + 2x = -18
-18 + 28 = 10 / 2 = 5
Answer:
5
Step-by-step explanation:
2 x 5 = 10
-28 + 10 = -18
so the answer is 5
what number shoul be added to -5/6 to get 2/3
Let it be x
ATQ
[tex]\\ \sf\longmapsto x+\dfrac{-5}{6}=\dfrac{2}{3}[/tex]
[tex]\\ \sf\longmapsto \dfrac{6x-5}{6}=\dfrac{2}{3}[/tex]
[tex]\\ \sf\longmapsto 3(6x-5)=6(2)[/tex]
[tex]\\ \sf\longmapsto 18x-15=12[/tex]
[tex]\\ \sf\longmapsto 18x=12+15=27[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{27}{18}[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{3}{2}[/tex]
PLEASE HELP ME!!!! WILL REWARD BRAINLIEST!!!!!
Answer:
-4 and -2.
Step-by-step explanation:
First of all,... OH MAN,... that is serious brain twisting logic (if you can call it logic) and to be fair I had to ask a math expert person I'm acquainted with,... cause I didn't know either,... so nothing to be ashamed about,...
If we let 2x equal the lesser of the two consecutive EVEN integers, and we let y equal 2x+2 be the greater of the two consecutive EVEN integers,
(For example, this is like x = 1, so 2x=2, y=4 or x=7, so 2x=14 and y=16, we add 2 to the lesser even integer to get the next CONSECUTIVE even integer.)
This, y=2x+2, is one of the equations we need. To get the other,
"Four times the lesser (4*2x) is (=) 12 less (-12) than twice the greater (2y)."
Doing it all in math, we get:
4(2x) = 2y - 12
This simplifies to:
8x = 2y - 12
And using the first equation (y=2x+2) we can substitute "2x+2" in for "y"
8x = 2(2x + 2) - 12
Simplify the right side by first distributing:
8x = 4x + 4 - 12
Combine like terms on the right.
8x = 4x - 8
Subtract 4x from both sides
4x = -8
Divide both sides by 4
x= -2
Remember, our lesser even integer is 2x, so the lesser integer is 2*(-2)= -4, the greater is (-4)+2= -2.
Final answer: The two consecutive even integers are -4 and -2.
To be even more fair I don't fully understand this completely either,... he explained it to me and I and getting it,... so anyway,... Hope it helps, and
Chow,...!
