if 9 men can complete a job in 4 days, how long will 8 men take to complete the same job, assuming that all the men are working at the same rate?
Answer:
Step-by-step explanation:
8t=9(4)
8t=36
t=4.5
So it will take 4.5 days for 8 men to finish the job.
What is the right way to work this problem?
(- -3 +12)
Answer:
15
Step-by-step explanation:
yes
what is 7/9 x 5 2/5 as a fraction
Answer:
[tex] \frac{7}{9} \times 5 \frac{2}{5} \\ = 4 \frac{1}{5} [/tex]
The result of 7/9 × 5 2/5 as a fraction is 21/5.
What is the simplified form of the expression?Given the expression in the question:
7/9 × 5 2/5
To multiply 7/9 by 5 2/5 as a fraction, first, convert the mixed number 5 2/5 to an improper fraction.
5 2/5 ⇒ ( 5 × 5 + 2 )/5 = ( 25 + 2 )/5 = 27/5
Hence, we have:
7/9 × 27/5
To multiply fractions, multiply the numerators together and then multiply the denominators together:
( 7 × 27 )/( 9 × 5 )
( 189 )/( 9 × 5 )
189/45
Simplifying, we get:
21/5
Therefore, the simplified form is 21/5.
Learn more about fractions here: https://brainly.com/question/29803353
#SPJ2
Please help, this is due in 30 minutes
Answer:
i think the first one maybe... not so sure
Answer:
Should be B and D
Step-by-step explanation:
You plug in the first number before the comma, and if it equals the second number after the comma then the point 'satisfies the equation'.
40.1 =
С C
+ 3.1
0.1
Answer:
1.876
because I said it was
a number rounded to the nearest thousand is 47000 which number could be the number that was rounded?
Answer:
46900
Step-by-step explanation:
46900 or 46800 or 46700 or 46600
A line segment has endpoints at(2,4) and (6,10). What are the coordinates of the midpoint of the line segment?
Answer:
I think the midpoint is (4,7)
Step-by-step explanation:
Three items were bought at a car boot sale.
Item A
Mass = 42 grams
Volume = 2 cm
Item B
Mass = 87.5 grams
Volume = 5 cm
Item C
Mass = 147 grams
Volume = 7 cm
The density of platinum is approximately 21 grams per cm".
Which of the items cannot be platinum?
You must show your working.
Answer:
true
Step-by-step explanation:
Given the side lengths, determine whether the triangle is acute, right, obtuse, or not a triangle.
15, 16, 21
A Not a Triangle
B Acute
Obtuse
D Right
9514 1404 393
Answer:
B acute
Step-by-step explanation:
We can define a "form factor" for a triangle as ...
f = a² +b² -c²
where c is the longest side length. It will be interpreted as follows:
negative -- obtuse trianglezero -- right trianglepositive -- acute triangleFor this triangle, our "form factor" is ...
f = 15² +16² -21² = 225 +256 -441 = 40 . . . . a positive number
The triangle is Acute.
Qué número es 3 unidades mayor que +5
Answer:
8
Step-by-step explanation:
5 + 3 = 8
which expression equals the sum 1+2+3+4+5+6..
Answer:
7 * 3
7+7+7
3+3+3+3+3+3+3
2+2+2+2+2+2+2+2+2+2+1
(2*10)+1
(10*1)+11....
...and so on
Step-by-step explanation:
I don't know what type of expression you are looking for
Can some one please help me answer these questions
What questions? There are no questions lol
HELP ME
PLSSSSS !!!!!!!!!
For the function: f(x) = 12 + 10x − 5x2
Find f(-6)
Answer:
-228
Step-by-step explanation:
I Used the given functions to set up and simplify f(-6)
Hope this helps:)
What is the Perimeter?
Answer:
8000 Km can I please get brainliest?
Step-by-step explanation:
The weight of adult female panthers in one habitat area are normally distributed with a mean of 82 pounds and a standard deviation of 9.8 pounds. What percent of the panthers weigh less than 76 pounds?
Answer:
27.09% of the panthers weigh less than 76 pounds
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean of 82 pounds and a standard deviation of 9.8 pounds.
This means that [tex]\mu = 82, \sigma = 9.8[/tex]
What percent of the panthers weigh less than 76 pounds?
The proportion is the pvalue of Z when X = 76. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{76 - 82}{9.8}[/tex]
[tex]Z = -0.61[/tex]
[tex]Z = -0.61[/tex] has a pvalue of 0.2709
0.2709*100% = 27.09%
27.09% of the panthers weigh less than 76 pounds
ellus
Corresponding Angles are congruent.
Which angle corresponds with <3?
42141
4443
«[?]
45 46
47 48
Answer:
<8 corresponds with <3
Select the correct answer from each drop-down menu.
If the radius of a circle is 3.5 Inches, Its diameter is
Inches and its approximate area is
square Inches.
Answer:
Diameter = 7 inches
Area = 38.48 in²
Step-by-step explanation:
Diameter = 3.5 x 2 = 7 inches
Area = 3.5² x π = 38.48 in²
There are 3 blue marbles, 6 red marbles, 2 green marbles and 1 black marble in a bag. You choose a marble, REPLACE it, and choose another. Find each probability
PLEASE HELP IM STRUGGLING
7) P (green and black) __
8) P (green, red) __
9) P (red, red) __
Answer:
Step-by-step explanation:
prob blue = 3/12 = 1/4
since you are replacing ,
prob(blue, blue) = (1/4)(1/4) = 1/16
Find the missing side of the triangle
Answer:
195^2 + 28^2 = x^2
38025 + 784 = x^2
38809 = x^2
square root both sides
x = 197
Red gold has 3 parts gold and one part copper how much carat gold it will be
Answer: 0.75 ×24 carat = 18 carat
Step-by-step explanation:
24 carat is 100% pure gold. If there is 3/4 parts of gold it is 75 % = 0.75
Question:Find the area of he trapezoid by decomposing it into other shapes.
Answer:
D) 171 cm²
Step-by-step explanation:
You don’t actually need to decompose it. You could just do it as a trapezoid:
(15+23)/2=19
19x9=171
If you want to decompose it into 2 triangles and a rectangle:
10=15x9=135
1/2(3)(9)=13.5
1/2(5)(9)=22.5
135+13.5+22.5=171 also
Peggy took a timed 30
question test. She answered
60% of the questions and
skipped the rest. How many
did she answer?
Answer: 18 questions
Step-by-step explanation:
First we want to make 60% a decimal so we divide by 100.
This gives us 0.6
Then we multiply 30*0.6=18
18 questions
What is the slope of line m?
On a coordinate plane, a straight line goes through (negative 2, 1), (0, 0), and (2, negative 1).
Given:
A straight line goes through (-2,1), (0,0), and (2,-1).
To find:
The slope of the given line.
Solution:
Slope formula
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
Consider any two points from the given points.
The line goes through (-2,1) and (0,0). So, the slope of the line is
[tex]m=\dfrac{0-1}{0-(-2)}[/tex]
[tex]m=\dfrac{-1}{2}[/tex]
Therefore, the slope of the line is [tex]m=-\dfrac{1}{2}[/tex].
Answer:
its 2/3
Step-by-step explanation:
Factorise the expressions and divide them as directed.
Answer:
4z(4z+3)Step-by-step explanation:
to understand thisyou need to know about:algebralet's solve:factorize the first expression:
26z³(32z²-18)26z³×2(16z²-9)52z³(16z²-9)52z³(4z-3)(4z+3)divide:[tex] \sf \frac{ \cancel{52 {z}^{3}} \: ^{ \displaystyle ^{4 {z} } } \bcancel{ (4 {z} - 3 )}(4z + 3) ^{ ^{} } } { \cancel{13 {z}^{2}} \: \: \bcancel{(4z - 3) }} [/tex]4z(4z+3)HELPPPPPP PLEASE I’m confusedddddd
what is the ratio of 7:21:35?
Answer:
49
Step-by-step explanation:
49 because 14 is added everytime
9,15,21 because 6 is added everytime
Hope it helps!
Mark my answer as brainliest!!
Explain how you can check your solution
to the equation. Then check the solution.
Answer:
To check if a given value is a solution to an equation:
Evaluate the left-hand side expression at the given value to get a number.
Evaluate the right-hand side expression at the given value to get a number.
See if the numbers match.
Plz help fifty points
Answer:
for question 13
13050501301305050130Step-by-step explanation:
for 14
x. 150
y. 15
z. 150
i cant say that this is totally correct but im taking a educated guess
Answer:
...
Step-by-step explanation:
Why is the equation
46 1,032
X +
55
not the equation of a line of best fit for the data set below?
55
Height (in.)
42
Arm span (in.)
41
43
55
45
52
48
49
49
49
52
53
59
60
45
44
44
45
60
57
A. The slope of the line is negative, but the data set has a positive correlation.
B The slope of the line is positive, but the data set has a negative correlation,
1.032
Answer:
not the equation of a line of best fit for the data set below? 55. Height (in.) 42. Arm span (in.) 41 43 55 45 52 48 49 49 49 52 53 59 60 45 44 44
Step-by-step explanation:
Answer:
c it is not d !!!!!!!!!!!!!
Step-by-step explanation:
can you give me brainliest
