Delilah finds her answer is 90, but she copied the expression incorrectly from the board. If her reasoning and answer for the expression she copied are correct, what expression might she have written?
Question:
Three students were working on 630,000÷700 in math class.
a. Desiree finds the quotient is 9,000 and Micah finds the quotient is 900.
Determine which student found the correct quotient.
b. Delilah finds her answer is 90, but she copied the expression incorrectly from the board. If her reasoning and answer for the expression she copied are correct, what expression might she have written?
Answer:
a. Micah is correct
b.
[tex]Expression = 63000 \div 700[/tex]
[tex]Expression = 630000 \div 7000[/tex]
Step-by-step explanation:
Given
[tex]Expression = 630000 \div 700[/tex]
[tex]Desiree = 9000[/tex]
[tex]Micah = 900[/tex]
Solving (a): Who is correct?
To do this, we first calculate the quotient of the expression.
[tex]Expression = 630000 \div 700[/tex]
Divide 630000 by 700
[tex]Quotient = 900[/tex]
Hence:
Micah is correct
Solving (b): What Delilah must have copied?
We have:
[tex]Delilah = 90[/tex]
There are no options to pick from. So, we just need to work out expressions that equals 0.
Possible expressions are:
[tex]Expression = 63000 \div 700[/tex]
[tex]Expression = 630000 \div 7000[/tex]
Juan sells 3 oranges for every 2 apples. How many apples should Juan expect to sell
when Juan sells 15 oranges:
Answer:
10 apples
Step-by-step explanation:
We can write a ratio to solve
3 oranges 15 oranges
--------------- = -----------------
2 apples x apples
Using cross products
3x = 2 * 15
3x = 30
Divide by 3 on each side
3x/3 = 30/3
x = 10
Answer:
He can expect to sell 10 apples
PLz help me
Aaliyah needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 3 hours and charged her $66 for parts. The total was $441. Write and solve an equation which can be used to determine xx, the cost of the labor per hour.
Equation:
Answer: x =
Answer:
x=125
Step-by-step explanation:
First identify what the varible means,
x = the cost of the labor per hour.
Next, write out an equation
3x + 66 = 441
Solve,
3x+66=441
Step 1: Subtract 66 from both sides.
3x+66−66=441−66
3x=375
Step 2: Divide both sides by 3.
3x/3 = 375/3
x=125
[tex]6^{3}[/tex] times [tex]6^{7}[/tex]
1.[tex]6^{21}[/tex]
2.[tex]36^{21}[/tex]
3.[tex]6^{4}[/tex]
4.[tex]6^{10}[/tex]
6^10
Or
Answer 4
This is because 3+7 is 10
For future problems, exponents can be added and that’s how you get the answer :)
Answer:
6^10
Step-by-step explanation:
When u ve base that are the same(6) u can add the exponents (7+3 = 10)
And keep the base the same
Please help me with this question?!
Answer: d
Step-by-step explanation:
You water your roses every sixth day and your hydrangeas every fifth day. Today you water both plants. In how many days will you water both plants on the same day again?
Answer:
Either 5 or 6 I'm not sure but I got this
Help me with this problem
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use the expression 4z + 8 + 3x + b to answer the following
part A what are the different terms in this expression
part B what is the constant in this expression
part C what are the coefficients of the variable terms
Answer:
part a:
4z, 8, 3x, and b
part b:
8
part c:
4 and 3
find the length of the missing side
Answer: 55.4
Step-by-step explanation:
Remember soh cah toa
tangent = adjacent/opposite
angle is 18 degrees
Opposite is 18
Adjacent is x
So tangent of 18 degrees = 18/x
Use calculator to find tangent of 18 =0.3249
So 0.3249 = 18/x
Reciprocal both sides
3.0777 = x/18
Multiply both sides by 18
x = 55.3983
You may need to round
Which of the following statements are true? select all that apply.
Answer:
what are the statements?
Help please I need this!!!
Answer:
n and y are incorrect
Step-by-step explanation:
The mean age of 5 people in a room is 27 years.
A person enters the room.
The mean age is now 27.
What is the age of the person who entered the room?
Answer:
thee answer is 27
Step-by-step explanation:
As the first part was 27 and the second pARTR 27 NO MATHS NEED TO BE INCLUDED AS 27 IS THE CORRECT
GIVING 20 POINTS AWAY PLEASE HELP ME WITH THIS QUESTION ASAP!!
Answer:
D 144 in hope this helps you on your test
find the length of AB on the kite?
Cell phone Plan A costs $60 per month and comes with a free $500 phone. Cell phone Plan B costs $50 per month but does not come with a phone. If you buy the $500 phone and choose Plan B, how many months is it until your cost is the same as Plan A's?
Answer:
hi
Step-by-step explanation:
Whoever gets this correct gets brain, 5 stars and a thanks! An explanation of it would be amazing! Tysm!
Answer:
D: 12
Step-by-step explanation:
1) So what I did at first was convert the fractions into decimals.
(Personally, this makes it easier, for me at least)
[tex]\frac{1}{4} = 0.25\\[/tex][tex]\frac{3}{5} = 0.60[/tex]2) The problem states that for every 0.25 cups of broccoli, 0.60 grams of fiber are added as well to the mix. You can also convert this into a fraction. (It doesn't matter which one is the numerator/denominator, but for this example, I used the 0.25 cups of broccoli as the numerator.
[tex]\frac{broccoli}{fiber} =\frac{0.25}{0.60}[/tex]3) Next step would be making another fraction. This time, the fraction is for the 5 cups of broccoli. Since we don't know the amount of grams for the fiber, we will replace it with an "x".
[tex]\frac{broccoli}{fiber} =\frac{5}{x}[/tex]4) Realize, that | [tex]\frac{0.25}{0.60} =\frac{5}{x}[/tex] | To figure out the answer to this part, you can cross-multiply
[tex]0.25x = 5(0.60)[/tex][tex]0.25x = 3[/tex]5) Then at last, divide both sides by [tex]0.25[/tex] and you'll get:
[tex]x=12[/tex]Sorry this may have taken a long time; I just wanted to make sure everything was correct. Hope you do well on math, whether it's a test, or just homework. Good luck! :D
Calculate the diameter of a circle if its circumference is 25.1cm
Answer:
d≈7.99 cm
Step-by-step explanation:
Using the formulas
C=2πr
d=2r
Solving for d
d=C/π=25.1/π≈7.98958
Someone plz HELP ME
Don't skip this question I'M STUCK
Drawing box and whiskers plots
Answer:
Water is added to liquid isopropanol (a polar liquid) to form a solution of rubbing alcohol. Describe what happens on the molecular level as the water dissolves in the isopropanol.
Step-by-step explanation:
What is the volume of the cube shown?
PLEASEEE HELP 25 points
Answer:
slope= 1/10x and the slope represents the increase of the rental cost after x miles driven.
Step-by-step explanation:
i hope this helps :)
What is the value of the expression 2 + x2.5 when x = 3?
Answer:C. 47
Step-by-step explanation:
Answer:
C. 47
Step-by-step explanation:
I did the calculations
log26x nnnnnnnnnnnnnnnnnnnnnnnnnn
Answer:
? what
Step-by-step explanation:
Answer:
what?......................
I need answers to this
Answer:
x = -5, and y = -6
Step-by-step explanation:
Suppose that we have two equations:
A = B
and
C = D
combining the equations means that we will do:
First we multiply both whole equations by constants:
k*(A = B) ---> k*A = k*B
j*(C = D) ----> j*C = j*D
And then we "add" them:
k*A + j*C = k*B + j*D
Now we have the equations:
-x - y = 11
4*x - 5*y = 10
We want to add them in a given form that one of the variables cancels, so we can solve it for the other variable.
Then we can take the first equation:
-x - y = 11
and multiply both sides by 4.
4*(-x - y = 11)
Then we get:
4*(-x - y) = 4*11
-4*x - 4*y = 44
Now we have the two equations:
-4*x - 4*y = 44
4*x - 5*y = 10
(here we can think that we multiplied the second equation by 1, then we have k = 4, and j = 1)
If we add them, we get:
(-4*x - 4*y) + (4*x - 5*y) = 10 + 44
-4*x - 4*y + 4*x - 5*y = 54
-9*y = 54
So we combined the equations and now ended with an equation that is really easy to solve for y.
y = 54/-9 = -6
Now that we know the value of y, we can simply replace it in one of the two equations to get the value of x.
-x - y = 11
-x - (-6) = 11
-x + 6 = 11
-x = 11 -6 = 5
-x = 5
x = -5
Then:
x = -5, and y = -6
Last week, while running
the mile, Eva's time was
2 1/2 minutes over her
average time. This week,
her she ran - 4 1/2 minutes
from her average What is
the difference in the two
running times?
Answer:
the difference is 2 minutes
Step-by-step explanation:
is that -4 1/2???? cause then it would be -2
What is 9 (4x^2 - 3) simplified?
The right rectangular prism is made of equally sized cubes. If the length of each cube is 1 meter, what is the volume of the right rectangular prism?
v
72 m3
13 m3
44 m3
36 m3
Answer:
72 m3
Step-by-step explanation:
Just multiply every number, 6*3*4=72
An engineer lives 21 miles east and 22 miles north of a water tower. A bridge she is
building is located 12 miles west and 34 miles south of the water tower. Find the
distance between where the engineer lives and the bridge
Answer:
t
Step-by-step explanation:
there was some ham in the refrigerator tyrisha used 3/4 of a pound to make sandwiches and jacquel used 7/8 of a pound to make sandwiches if there is now 2 1/2 pounds of ham leftover how much ham was there before tyrisha and jacquel used some
help me with this please
Please find the square root of this non perfect square please
Answer:
1.41421
Step-by-step explanation: