Answer:
60
Step-by-step explanation:
because 12 inches is one foot so there’s 6 feet per 6 feet of ribbon and there’s 10 of these ribbons so 6 times 10 is 60
The 12-inch pieces the dressmaker can cut from 10 of these rolls of ribbon will be 60 strips .
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
It is given that the dressmaker has 720 inches of ribbon.
dressmaker needs to cut 12-inch pieces of ribbon from rolls of ribbon that are 6 feet in length.
The amount of rolls she has = 10 rolls
so,
6(strips per roll) x 10(amount of rolls) = 60 strips
Learn more about the unitary method;
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I NEED HELP PLEASE !!!!
Answer: de
Step-by-step explanation:
A coat that usually cost $120.00 is marked 1/3 off. What is the sale price of the coat?
Answer:
The sale price would be $80.00
Step-by-step explanation:
1/3 (33%) of $120 is $40.
$120 - $40 = $80
Please help me........
cosa/(1+sina)+cosa/(1-sina)=2seca
prove this:)
Answer:
Please check explanations
Step-by-step explanation:
Using the difference of two squares, the lowest common multiple becomes;
1-sin^2 a
Thus, we have that;
cos a (1-sin a) + cos a (1 + sin a) /1 - sin^2 a
1 - sin^2 a = cos^2 a
That means;
{cos a - cos a sin a + cos a + cos a sin a}/ cos^2 a
= 2cos a / cos^2 a
= 2/cos a
but 1/cos a = sec a
Thus;
2/ cos a = 2 sec a
Write 43.75 as a reduced fraction.
Answer: 43 3/4
Step-by-step explanation:
Reduce means simplify
43.75= 43 75/100
you can dive each side of 75 and 100 by 5
it will get you to 43 15/20
again it is not reduced dived by five once more
it will get you to 43 3/4
what is the value of (f – 9)(144)?
A 6-pack of envelopes costs $0.84. What is the unit price?
Answer:
$.14 is the answer :)
Step-by-step explanation:
.84/6=.14
Answer:
$0.14
Step-by-step explanation:
0.84÷6=0.14
За + 2b – 8а + Ь
Please help
Answer:
-5a+3b
Step-by-step explanation:
-5a+3b Combine like terms
2x + 49 = -8 (-x-5)
Show your work please :D
Answer:
2x + 49 = -8 (-x-5)
x=-57/2
x=-28.5
because if you substitute x for 28.5, it makes it equal
Step-by-step explanation:
Hope I Helped!!!
What correlation is shown by the scatter plot?
WILL MARK BRAINLEST!!!!!!
What should be the first step in adding these equations to eliminate y?
8x + 3y = 2
+ 4x - 6y= -7
O A. Multiply the top equation by 4.
O B. Multiply the bottom equation by 8.
C. Multiply the bottom equation by 2.
D. Multiply the top equation by 2.
D. Multiply the top equation by 2.
Answer:
D
Step-by-step explanation:
Given the 2 equations
8x + 3y = 2 → (1)
4x - 6y = - 7 → (2)
Multiplying the top equation (1) by 2 and adding to (2) will eliminate y
16x + 6y = 4 → (3)
Add (2) and (3) term by term to eliminate y
20x + 0 = - 3
20x = - 3 ( y has been eliminated )
log, (5x + 4) = 3x – 4
Answer:
X-4
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable
please help!!!!!!!!!!!! !!!
18. The half-life of a radioactive isotope is 7 years.
Initially, there are 100 grams of the isotope.
Which expression shows the amount of the isotope
remaining after x years?
Answer:
100(0.5)^X/7
Step-by-step explanation:
That is how you would put it ;)
convert 17 kilometers to the nearest whole mile
Answer:
11miles
Step-by-step explanation:
1mile≈1,61km
so 17/1,61=10,56≈11miles
Answer:
10.56 (rounded)
(whole number is 10.5633)
Step-by-step explanation:
1 kilometer = 0.62 miles (rounded)
Multiply it by 17
=10.56 (rounded)
(whole number is 10.5633)
Consider this quadratic equation:
2x2+12=0
Comparing it to the standard form, name a, b, and c
a=
b=
c=
Answer:
a=2
b=0
c=12
Step-by-step explanation:
The standard form of a quadratic equation is ax²+bx+c=0
Here's the given equation:
2x²+12=0
You might notice that the term bx is not there (there is just ax² and c). That means that b is 0.
The term 2x² is the term ax² in this equation. The coefficient in the term is 2, so that means that a is 2
12 has no variable, so that means it'll be c in the equation.
Hope this helps!
solve the system of equations
−4x+3y=−2
y=x−1
x =
y =
what is 12% of 75? =)))
Answer:
Hope this helps!
Step-by-step explanation:
12% of 75 would be 9
9
Step-by-step explanation:
12/ 100 × 75
3/ 25 × 75
75/ 25 = 3
3 × 3 = 9
hope it helps!
I need help with this fast! Thanks!
What is the value of the expression? 9 3/4−2 1/5+1/2
_ -- > Ex: 9 1/7
I need this fast!
Answer: 8 1/20 or 8.05.
Step-by-step explanation: First you would want to make 9 3/4 - 2 1/5 to 39/4 - 11/5. We need to get the LCD or Least Common denominator of 4 and 5, which is 20. The rule is what you multiplied the denominator by you must multiply the numerator by, so our new equation is 195/20 - 44/20, which is 151/20. Now, we have to find the LCD of 2 and 20, which is 10. So 151/20 + 10/20 is 161/20 or 8 1/20.
Tyler practiced the clarinet for 64% as much time as Han practiced the piano. How long did he practice?
Answer:
Tyler practiced piano = 48 minutes
Step-by-step explanation:
Missing;
Hen practiced piano = 75 minutes
Given:
Tyler practiced piano = 64 % of Hen
Find:
How long Tyler practiced
Computation:
Tyler practiced piano = 64 % of Hen
Tyler practiced piano = 64 % x 75
Tyler practiced piano = 48 minutes
simplify the expression 5^-3
Answer:
It is the 3rd answer, 1/5³. I checked. Happy to help. Brainliest would be thanking.
Answer for brainliest
A6 ft tall man standing next to a tree casts a 8 ft shadow. If the tree is 15 ft tall then how long is its shadow?
Answer:
The tree's shadow is 20 ft long.
Step-by-step explanation:
If you take 6 and 15 and turn it into a fraction 6/15 and take 8 and the missing value (x) and turn that into a fraction 8/x, then you can move to the multiplication.
6/15 *8/x = 6x=120/6
120/6=20
Hope this helps :)
2(2x + 3)^2– 7(2x + 3) - 4
Answer:
Solution in photo
Step-by-step explanation:
due in a few hours, i'll give brainliest to the correct answer!!!
Answer:
Angle a=45, Angle b=45
Step-by-step explanation:
The angles are complementary angles which means they both add up to 90 degrees. And if angles a and b are equal then its 90/2 which is 45.
The _____ of a regular polygon is a point equidistant from each of its vertices.
Answer:
middle / centre
Step-by-step explanation:
Each point is the same distance to the middle of a polygon
hope this helps....
What is the slope of D and E??
Answer:
-4 and 0
Step-by-step explanation:
Rise over Run would give us the slope.
In the first graph, It goes down 4 while it goes 1 to the right.
This means that -4/1 = -4.
The second graph does not go up or down, meaning 0, while it goes 1 to the right.
This means that 0/1 = 0.
?• (-10) = 90
Please help I need it now
Answer:
x = -9
Step-by-step explanation:
x • -10 = 90
x = 90/-10
x = -9
Hope this helped! <3
Justin drives 7.5 miles in 15 minutes. If he drove three hours in total at the same rate, how far did he go?
Answer:
Justin drove 90 miles in 3 hours.
Step-by-step explanation:
Given that:
Justin drives 7.5 miles in 15 minutes.
Speed of Justin = [tex]\frac{7.5}{15}[/tex]
Speed of Justin = 0.5 miles per minute
For speed in hours, we will multiply by 60
Speed of Justin = 0.5 * 60 = 30 miles per hour
Distance covered in 3 hours = 30 * 3 = 90 miles
Hence,
Justin drove 90 miles in 3 hours.
The total distance covered by Justin at the same rate is equal to 90 miles.
Given the following data:
Distance A = 7.5 milesTime A = 15 minutesTotal time = 3 hoursConversion:
1 hour = 60 minutes
3 hours = 180 minutes
To determine the total distance covered by Justin at the same rate:
First of all, we would calculate the rate of Justin's speed as follows:
[tex]Speed =\frac{distance}{time} \\\\Speed =\frac{7.5}{15}[/tex]
Speed = 0.5 miles per min.
For the total distance:
[tex]Total\;distance = speed \times total\;time\\\\Total\;distance = 0.5 \times 180[/tex]
Total distance = 90 miles.
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Given that x is a nonnegative number, a student conjectured that x+3
Which value of x is a counterexample to the student's conjecture?
X= -1/3
X= -3
X= 2
X= 3
Answer:
[tex]x = 2[/tex]
Step-by-step explanation:
Given
Conjecture: [tex]x + 3 < x^2[/tex] --- (Missing)
Required
Which value of x prove the conjecture otherwise
To do this , we simply substitute the values of x in the options
[tex]1.\ x = -\frac{1}{3}[/tex]
This is negative;
So, there is no need to check
[tex]2.\ x = -3[/tex]
This is also negative;
So, there is no need to check
[tex]3.\ x = 2[/tex]
[tex]x + 3 < x^2[/tex]
[tex]2 + 3 < 2^2[/tex]
[tex]5 < 4[/tex]
This value of x is false because 5 is not less than 4
[tex]4.\ x = 3[/tex]
[tex]x + 3 < x^2[/tex]
[tex]3 + 3 < 3^2[/tex]
[tex]6 < 9[/tex]