Answer:
B: A
He earns $90 in 3 weeks.
C
He shelves 90 books in 3 hours.
Step-by-step explanation:
Answer:
Step-by-step explanation:
please help me write the expressions I'm terrible at word problems!!
Answer:
Expression: 2.89+(1.28x3) Answer: 6.73
Step-by-step explanation:
Number 1
What is the slope?
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Non Proportional Relationships
Use the function to make a table of values for the equation.
y= -1/3x-2
How many pounds of chocolates that cost $7 per pound must be mixed with 3 pounds of caramels that cost $3.50 per pound to make a candy mix that
cost $5.25 per pound?
Answer:
You know somw things are changed i can't even answer that so please answer it yourself because hahhahaahahaahahhahahahha hello
Step-by-step explanation:
Because i dont know how to answer that ok?! Tell that to ur mom haha
a snail crawls 3/4 inches in 1/5 of a minute how long will it take the snail to crawl 1/2 in?
Answer:
15/4
Step-by-step explanation:
Whenever you are working with a question of rate where two different quantities are being compared, the required units will indicate which quantity is to be divided by which.
3/4 divided by 1/5
3/4 times 5/1 (multiply reciprocal)
=15/4
I havent done this in a while so im not entirely sure.
What value of x makes the equation -0.2(3x – 25) = -0.1x + 7 true?
Answer:
x = -4
Step-by-step explanation:
Ok first let's put the equation.
-0.2(3x – 25) = -0.1x + 7 (first distribute the -.2 to 3x and -25)
-0.6x + 5 = -0.1x + 7 (subtract 5 on both sides)
-0.6x = -0.1x + 2 (add -0.1x on both sides)
-0.5x = 2 (divide by -0.5 on both sides)
x = -4
Hope this helps!!
The hours a week people spend answering and sending emails is normally distributed with a standard deviation of Ï = 150 minutes. How large of a sample size would you need to estimate the mean number of minutes people spend answering and sending emails with an error of 1 minutes with 99% confidence? What would be the practical problem with attempting to find this confidence interval?
Answer:
sample size n would be 149305 large
Value of n (149305) is too high, this will be the practical problem with attempting to find this confidence interval
Step-by-step explanation:
Given that;
standard deviation α = 150 min
confidence interval = 99%
since; p( -2.576 < z < 2.576) = 0.99
so z-value for 99% CI is 2.576
E = 1 minutes
Therefore
n = [(z × α) / E ]²
so we substitute
n = [(2.576 × 150) / 1 ]²
n = [ 386.4 ]²
n = 149304.96 ≈ 149305
Therefore sample size would be 149305 large
Value of n is too high, that would be the practical problem with attempting to find this confidence interval
HELP PLEASE IM LOOSING MY MIND
Answer:
C is da answer
Step-by-step explanation:
Answer:
never seen such big horror
but I think it D using logic
how many times greateri is the value of the digit 9 in 90,000 than the value of the digit 9 in 9,000
Answer:
It is 10 times greater.
Step-by-step explanation:
The place value of 9 in 90,000 is in the 10,000th place.
The place value of 9 in 9,000 is in the 1,000th place.
10,000 divided by 1,000 = 10.
In conclusion, the place value of 9 in 90,000 is 10 times greater than the palce value of 9 in 9,000.
A store manager created this table representing the relationship between the reported number of snow days during a given month, x, and the sales revenue of bags of rock salt, y, rounded to the nearest dollar.
Using the linear best-fit model for the data, what is the predicted sales revenue of rock salt given there were 11 snow days in the month?
$773.00
$1,374.00
$1,457.00
$1,474.00
Number of snow days
Rock salt sales revenue
2 $823.00
1 $725.00
3 $943.00
5 $1,086.00
4 $997.00
3 $951.00
7 $1,163.00
6 $1,098.00
Answer:
1374.00
Step-by-step explanation:
I just took the test
oh this is for k12 students by the way
Expressions equivalent to z+(z+6)
Answer:
2z+6
Step-by-step explanation:
Answer:
z+ (z+6) =2 (z+3)
Step-by-step explanation:
the other given optional expressions are not equivalent to the given expression. The option 2 (z+3) is correct and it is the equivalent expression. Hence the given expression z+ (z+6) is equivalent to the expression 2 (z+3)
Missy wants to find the surface area of a snack box in her pantry her work is shown below
Answer:
Step 2: Missy did not multiply the area of each face by 2 before adding.
Step-by-step explanation:
I took the test :)
Please I need help I give brainliest!!
Answer:
x=x
Step-by-step explanation:
How can you use counters to show division and subtraction
relationship
Answer:
what grade are u in just need to know so I can help bc I dont understand the question
How do you evaluate a division problem
Answer:
Step-by-step explanation:
Not wanting to be trite, i'd still suggest that you use a calculator for routine division. Round off your answer (quotient) to an appropriate number of decimal places.
For example, 2/3 comes out to 0.66666 ... (repeating decimal). You might want to round this off to 2 decimal places: 0.67.
The old fashioned "long division" is another method.
0 . 6
-----------
3 / 2 . 0 0 0
0. 0 0 0
---------------------
1. 8
and so on. You still need to round off the quotient to a suitable number of decimal places.
If the coordinate ( -12, 15 ) was translated according to (x+3, y-2), what would the new coordinate be?
15x + 10 - 6 PLEASE HELP ME SOLVE THIS PLEASE SHOW WORK TO? THANK YOU
Tony and some friends went to the movies. They bought 4 drinks and 2 tubs of popcorn and spent a total of $32.50 on the food. Each drink costs $3.50 less than a tub of popcorn.
a. Define a variable. Write an equation that can be used to find the cost of one tub of popcorn.
b. Solve the equation to find the cost of a tub of popcorn.
Solve for x. Show your Work.
Answer:
50+3x+4 = 90
54+3x = 90
3x = 90-54
3x = 36
x = 12
3x+4 = 3(12)+4
= 36+4
= 40
Charlie bought a pair of shorts at the store when they were having a 45% off sale. If the regular price was 24$ how much did charlie pay?
Answer:
$10.80
Step-by-step explanation:
45% of $24=10.8
use place value and money to make it $10.80
TEN DOLLARS AND EIGHTY CENTS
Consider the function shown on the graph. Complete the statements to make them true
Answer:
Domain: x ≥ -5
Range: y ≥ -2
Step-by-step explanation:
The domain are the set of x-values of the function that are plotted on the x-axis. The domain of the graph given are x-values that are equal to or greater than -5.
Therefore:
✅Domain: x ≥ -5
The range from the graph given the y-values plotted on the y-axis against their corresponding x-values that are equal to or greater than -2.
Therefore:
✅Range: y ≥ -2
ATA movie theater the size of popcorn has decreased by 10%. If the old bag held 14 cups how much does the new bag hold
I think
Step-by-step explanation:
12.5 since it decreases 10% and the old bag had 14 cups and 10% is 1.4
Brainliest be good peeps Calculate the missing term in each and for 2 its not 6/7 it cant be okay? thanks tho if you try and get that.
proportion.
2/11= /55
36/42= /
9/ = 21/28
6/9= /15
Answer:
Step-by-step explanation:
For 2 it is 6/7. 36 and 42 share a common factor, 6. If you divide each one by 6, 36 becomes 6, and 42 becomes 7. So, number 2 is 6/7.
Line x has a slope of -1/2. Line y is perpendicular to line x. What is the slope of line y?
Answer:
2
Step-by-step explanation:
perpendicular means the opposite inverse of a slope. So -1/2 will become 2/1 or simply 2.
opposite means the sign will change, negative becomes positive and positive becomes negative.
inverse flip numerator and denominator.
[tex]\huge\boxed{Hi\;there!}[/tex]
★Perpendicular lines have slopes that are opposite reciprocals.
This means we take a number, change its sign, and then, flop it over:
[tex]\displaystyle-\frac{1}{2}[/tex]
[tex]\displaystyle\frac{1}{2}[/tex]
[tex]2[/tex]
[tex]\huge\boxed{\mathfrak{Answer:{\boxed{the\;slope\;of\;line\;y\;is\;2}}}}}[/tex]
[tex]\bold{Hope\;it\;helps!}[/tex]
[tex]\rm{Enjoy\;your\;day![/tex]
[tex]\boxed{AmiableTeen:)}[/tex]
A pair of shoes was $5 but is now on sale for
$4. What is the percent discount?
Answer:
20%
Step-by-step explanation:
i actually dont know sorry :(
Answer:
20% discount
Step-by-step explanation:
4/5 = 80%
5/5 - 4/5 = 1/5
1/5 = 20%
$1.00 to 2/3 gallon
2
10 points
A caterer needs to buy 21 pounds of pasta to cater a wedding. At a local store, 8 pounds of pasta cost $12. How much is the cost per
pound?
Answer:
$1.5/pound
Step-by-step explanation:
Number of pounds = 8pounds
Cost of pasta = $12
Now;
Unknown:
cost per pound of pasta
Solution:
To find the cost per pound of pasta;
Cost per pound of pasta = [tex]\frac{cost of pasta}{number of pasta}[/tex]
Cost per pound of pasta = [tex]\frac{12}{8}[/tex] = $1.5/pound
1. Simplify by using the distributive property:
4 (2x +9)
Answer:
8x+36
Step-by-step explanation:
Hi, let me help you out!
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
In order to simplify this, we should use the Distributive Property:
[tex]\longrightarrow\tt{a(b+c)=ab+ac}[/tex]
According to the property,
[tex]\longrightarrow\tt{4(2x+9)=8x+36}[/tex]
I hope it helps you! Have an awesome day!
If you need any explanation or clarification, feel free to reach out! :D
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
3+(-2)-(-3)-(5)+(-1)-(-7)=
Answer:
-1
Step-by-step explanation:
did math on caculator
Give two reasons why it's impossible to draw triangle PQR m angle Q=103^ m angle R=47^ p = 44 q = 12 , and f = 31
Answer:
It is impossible becuase it would not eqaul the numbers a regular triangles would have. A triangle has to equal a certain number and this number does not make a traingle.
Reason 1: The hypotenuse is invalid, because 44^2 does not equal 12^2 + 31^2.
Reason 2: The angles measures do not correlate properly to their assigned letter sides (at least to me). Additionally, 30 degrees just doesn't make any sense from a logical standpoint.
Ivy wants to see 20 birds on her hike. So far, she has seen 8. How many more birds does she need to see.
Answer:
12
Step-by-step explanation:
20-8=12