Answer: a. 0.6
b. 42 buttons
Step-by-step explanation:
a. What fraction of the buttons did not have 5 holes?
Since forty percent of the 70 buttons in the box had 5 holes, the number of buttons in the box that doesn't have 5 holes will be:
= 100% - 40%
= 60%
= 60/100
= 0.6
b. How many buttons did not have 5 holes?
This will be:
= 60% × 70
= 0.6 × 70
= 42 buttons
What is the original price of the tennis racquet?
A drawing of a tennis racquet with a tag for sale labeled “30 percent off. Now 21 dollars.”
The original price is $
The original price of the racket is $30
Markup and discount priceLet the original price be x
If there is 30% off the original price, then the new price will be 0.7x
If the price of tennis racquet is now $21, hence;
0.7x = 21
Divide both sides by 0.7
0.7x/0.7 = 21/0.7
x = 21/0.7
x = $30
Hence the original price of the racket is $30
Learn more on discount here: https://brainly.com/question/19104371
Use substitution to solve the system of equations.
3 - 5y = 36
22 + y = -16
Answer:
(-4, -8)
Step-by-step explanation:
x - 5y = 36; 2x + y = -16
first, rearrange the first equation by adding 5y to both sides to isolate x
x = 5y + 36
then plug that in for x in the second equation and solve for y:
2(5y +36) + y = -16 distribute 2 to (5y + 36)
10y + 72 + y = -16 combine like terms by adding 10y and y
11y + 72 = -16 subtract 72 from both sides
11y = -88 divide both sides by 11
y = -8
next, plug y in and solve for x
x - 5(-8) = 36
x + 40 = 36 subtract 40 from both sides
x = -4
finally, check the solution by plugging x and y into both equations to see if they equal the expected value
(-4) - 5(-8) = -1 + 40 = 36 = 36 ✓
2(-4) + (-8) = -8 -8 = -16 = -16 ✓
(2x-14) = (3x-6) how do I solve this
Step-by-step explanation:
there you go that is how you solve
Answer:
x=-8
Step-by-step explanation:
Given: 2x-14=3x-6
+14 +14
-----------
2x=3x+8
-3x -3x
--------------
-1x=8
--- ---
-1 -1
-------------
x= -8
Hope this makes sense
what is $78 discounted 12%
Answer:
$78 discount off 12% you would get $68.64. That is $9.36 off
Please help! how do i know if it’s sin, cos, or tan if they’ve already given me all three numbers ?
Answer:
Here you can use any!
sin x = 64/80
cos x = 48/80
tan x = 64/48
express each of the following percentages as a fraction.28% 158%
Answer:
28% = 7/25 and 158% = 79/50
Step-by-step explanation:
To convert a percent into a fraction, you have to put the value of the percent over 100.
For 28%: 28/100
28 and 100 are both divisible by 4, so the fraction reduces to 7/25.
For 158%: 158/100
158 and 100 are both divisible by 2, so the fraction reduces to 79/50. If you teacher doesn't want you do use improper fractions, then 79/50 can further be reduced and becomes [tex]1\frac{29}{50}[/tex].
Hope this helped!
What is the measure of angle BAD?
Answer: 73
Step-by-step explanation:
Both sides are exactly the same
Please help!! Will give brainliest!!!! Photo above
Answer:
c is your awnser
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
In this picture, the angle, 30 degrees, is a part of the whole. we are looking for the value of X.
First we can take off 45 degrees, since the angle is lower than 30 degrees
Now we can take off 15 degrees, since the angle is too small.
And we can also take off 10 degrees since its way too small.
2x mean 2 times X.
The overall measurement is a 90 degree angle, indicated by the box.
90-30= 60
30 * 2 = 60.
The correct answer is 30.
~Hope this helps~
guys help please bro
Answer:
132 square meters
Step-by-step explanation:
You can split the shape into two figures. They both will be parellelograms.
Area of parallelogram: A=bh
11 *6=66
66 *2= 132
Answer: 132 square meters
I don't what to do
Only 1-9
A high school reports that its students' SAT scores were down by 8% in one year. The next year, however, the test scores rose by 18%. The high school principal announces, "Overall, test scores have improved by 10% over the past two years."
Answer:
B
1.09 is the improvement in scores
Step-by-step explanation:
Here is the remaining part of the question : Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The statement is true because 18 - 10 = 8 and the percentage improvement is given by the difference in the percentages of the increase and decrease. B. The statement is false because the reference values for the decrease and increase are not the same. The true improvement over the past two years is (Simplify your answer. Type an integer or decimal rounded to the nearest hundredth as needed.)
let a = scores
If scores decreased by 8% last year, scores that year was (100 - 8%) = 92% = 0.92
scores last year = 0.92a
If scores increased by 18%. It means the score this year is 0.92a x 1.18 = 1.086a
Improvement in scores 1.09
PLS HELPP I NEED TO KNOW
Answer the attached question. 10 points are yours
Determine whether the relation is a function. Explain why or why not.
{(2, 5), (3, –5), (4, 5), (5, –5)}
A.
Yes; no value in the domain corresponds to more than one value of the range.
B.
No; the domain value 5 corresponds to two range values, 2 and 3.
C.
Yes; multiple domain values correspond to the same range value.
Answer:
A. Yes; no value in the domain corresponds to more than one value of the range.
Step-by-step explanation:
There is no domain value that corresponds to more than one range value.
If you graph the ordered pairs on a coordinate plane, you cannot draw a vertical line that passes through more than one point.
Alex dumped out his piggy bank and there were only
nickels, dimes, and quarters.
There were three times as many dimes as nickels, and 40
more quarters than nickels.
If the total amount of money was $17.20, how many of each
type of coin were there?
"There are
nickels,
dimes, and
quarters.
Answer:
12 nickels
36 dimes
52 quarters
Step-by-step explanation:
Let x = no. of nickels
3x = no. of dimes
x + 40 = no. of quarters
5x = value of the nickels since each nickel is 5 cents
10(3x) = 30x = value of the dimes since each dime is 10 cents
25(x + 40) = 25x + 1000 = value of the quarters since each quarter is 25 cents
Now, 5x + 30x + 25x + 1000 = 1720 ($17.20 = 1720 cents)
60x + 1000 = 1720
60x = 720
x = 12 nickels
3x = 36 dimes
x + 40 = 52 quarters
Check: 12 nickels are worth $.60
36 dimes are worth $3.60
52 quarters are worth $13
.60 + 3.60 + 13 = 17.20
What is the implication, hypothesis and conclusion in this statement all engineers are resourceful.
Answer:
The majority of theorems in mathematics take the form of compound statements. These statements are called conditional and biconditional statements.
The conditional statement from the sentence above is:
If x is an engineer then x is resourceful.
Put in a mathematical form we can refer to the Implication as:
If Xe then R. Or
Xe implies R. Or
Xe if R.
The Hypothesis is stated as
Xe ⇒ R
The statement Xe in an implication Xe ⇒ R is called its hypothesis, premise, or antecedent, and R the conclusion or consequence.
Implications are critical in expressing a logical argument. If an implication is found to be true, then the consequences must be as well when the hypothesis satisfied. This is why is also referred to as a conditional statement.
Cheers
If y=5 then what is 7+2y2 . I needed help
Answer:
57
Step-by-step explanation:
Remember when an exponent is given and says to solve for any variable, you will plug the number in the variable ( the number given for the variable ) and first solve for exponent. Then solve the rest. Hope this helps, thank you !!
80 times 30 plus 60 equals
Answer:
2460
Step-by-step explanation:
Hope this helps :)
Answer:
the awnser is 2460 have a nice day
Step-by-step explanation:
What is the value of y?
Answer:
I think it is 3????
Step-by-step explanation:
I'm not sure but 36 / 12 = 3 so yea.
Hopefully this is right!
What is the r-value of the following data, to three decimal places?
A. -0.953
B. 0.908
C. -0.908
D. 0.953
Answer:
0.953
Step-by-step explanation:
Answer:
The answer is D. 0.953
Step-by-step explanation:
Can some one answer quickly please
Answer:
the answer is A -1/3 x
Step-by-step explanation:
hope this helps :)
Juanita has a 20% of the money that she needs to buy a new bicycle if she has a $52 how much money does the bicycle cost?
Answer:
Step-by-step explanation:
if Juanita has 52 dollars and this sum represents 20%
the bicycle costs 52*5=260 dollars
the path of a toy rocket is modelled by the equation y=-x^2+6x+2, where x is the horizontal distance, in metres, travelled and y is the height, in metres, of the toy rocket above the ground. what is the maximum height of the toy rocket? at what horizontal distance does the maximum height occur?
Answer:
The path of a toy rocket is defined by the relation y=-3x^2+11x+4, where x is the horizontal distance, in meters, traveled and y is the height, in metres, above the ground.
Determine the zeros of the relation.
-3x^2 + 11x + 4 = 0
---
3x^2 - 11x -4 = 0
Factor:
3x^2 - 12x + x - 4 = 0
---
3x(x-4) + x-4 = 0
---
(x-4)(3x+1) = 0
---
x = 4 or x = -1/3
============================
f(x) = -3x^2+11x+4
How far has the rocket traveled horizontally when it lands on the ground?
4 ft.
==================
What is the maximum height of the rocket above the ground, to the nearest hundredth of a meter?
---
max occurs when x = -b/2a = -11/(2*-3) = 11/6
height = f(11/6) = 14.083 ft
please answer will give brainliest
Answer:
45.
A=a+b/2
2/h=7+11/2
2·5=45
A baby elephant weighs approximately 2.5 x 10 pounds. If an adult elephant can weigh up to 56 times more than a newborn elephant, how much could an adult elephant weigh?
Answer:
1400
Step-by-step explanation:
Answer:
1400 I hope its correct
(0,-9)after a rotation of 180 counterclockwise about the origin
The coordinate after a rotation of 180° counterclockwise about the origin is (0, 9).
What is rotation?Rotations are transformations that turn a shape around a fixed point. To rotate a shape we need: a centre of rotation. an angle of rotation (given in degrees) a direction of rotation – either clockwise or anti-clockwise.
The given coordinate is (0, -9).
Rotation rule:
Rotating a point that has the coordinates (x,y) 180° about the origin in a clockwise or counterclockwise direction, produces a point that has the coordinates (-x,-y).
Now, (0, -9) → (0, -(-9))
(0, -9) → (0, 9)
Therefore, the coordinate after a rotation of 180° counterclockwise about the origin is (0, 9).
Learn more about the rotation here:
brainly.com/question/1571997.
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the points (-1,r) and (2,1) lie on a line with slope -4 find the missing coordinate
Answer:
(-1,2)
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URGENT I need help.
Plzzzzzzzzzzzzzzzzzzzzzz Its Attached
Answer:
what is you belling? yesterday y monday
Does (0,5) make the equation y = 7x true?
Answer:
I beleive
Ordered pairs are in the form (x , y). So, my x-coordinate is 0 and my y-coordinate is 0. ... Since, -7 times 0 is equal to 0, I get 0 = 0. This is a true statement, and so (0, 0) is a solution to the equation If its incorrect I'm sorry
Step-by-step explanation:
What is the intercept from these two lines.
Please explain.
Answer:
Detailed answer in explanation.
Step-by-step explanation:
When you substitute x as 0 you'll get the y-intercept and when you do the same for y you'll get the x-intercept.
[tex]y=\frac{1}{4} x-3[/tex]
x-intercept(s): (12,0)
y-intercept(s): (0,−3)
[tex]y=-\frac{3}{2} x+4[/tex]
x-intercept(s): (8/3,0)
y-intercept(s): (0,4)
Now that we got these values you can plot them into the graph and start graphing the two lines. The lines will intersect at (4,-2) as shown in the graph attached.