Answers
Answer:
-5
Step-by-step explanation:
Related Questions
Angelina went out to eat dinner, and the meal cost $100.00. If Angelina received a 19% discount, what was the total value of the discount?
Answers
Answer:
$19
Step-by-step explanation:
100 x 19% = 100 x 0.19 = 19
An athlete eats 0.25 kg of protein per week while training. How much protein she eat during 5 weeks of training? Write the number in grams.
Answers
0.25 kg= each week.. so within 5 weeks you’d find this by multiplying 0.25 kg by five or add 0.25 kg five times to get ur answer.
Define a variable, write an equation and solve: An investment increased 30% before taxes. $200 was withdrawn to pay taxes and the investor has $1500 remaining. What was the original investment?
Answers
Answer:
$1307.69
Step-by-step explanation:
Let the original investment be x.
Note that a 30% increase in a value is equal to multiplying a value by 130% and a withdrawal is to take out money. The final amount is $1500. Let’s write the equation with the information we have.
Equation:
130%x - 200 = 1500
(130/100)x = 1700
x = 1700(100/130) = $1307.69
I hope this helps! :)
I NEED AN EXPLANATION FAST!
Answers
Answer:
l. 60
Step-by-step explanation:
60 + 60 + 60 = 180
a triangle equals 180 degrees
Answer:
60 degrees
Step-by-step explanation:
every angle in a triangle must add to 180 degrees. So 180/3=60
An algebraic equation is an equation that includes:
A: No variables one or more variables
B: Only one variable
C: One or more variables
D. Just numbers
Please select the best answer from the choices provided.
Answers
Answer:
C is the answer that you are looking for.
In 924,130, the 2 is in the what place
Answers
Answer:
The hundredth thousands place.I hope this helps. Can you give me brainlest
Step-by-step explanation:
HELP ME PLEASEEEEEEEEEE
Answers
Answer: 7 feet taller than the person.
Step-by-step explanation:
what is the percent decrease from 10 to 3
Answers
The percentage decrease from 10 to 3 should be considered as the 70%. Here percentage means when we divide numerator by denominator.
Calculation of the percentage:Since there are two numbers i.e. 10 and 3
We need to determine the percentage
So,
Here
[tex]= (10 - 3) / 10\\\\[/tex]
= 70%
hence, The percentage decrease from 10 to 3 should be 70%.
Learn more about percentage here: https://brainly.com/question/16616666
✔ ou
Andre needs to buy hamburgers and hot dogs for a picnic. He has only $23.00 to spend and must buy at least 78 hamburgers or hot dogs. A store charges 50.50 per
hamburger and $0.25 per hot dog. Which of the following is a possible way Andre might buy the hamburgers and hot dogs?
Answers
Answer:
The answer is 20 hamburgers and 25 hot dogs.
20(.5)+25(.25)<16.5
10+6.25<16.5
16.25<16.5
The budget is $16.50 and $16.25 is $.50 less therefore making it a possible option for Enrique.
4) – 2x2 + 6x + 5 = 0
a. nonreal
b. real, irrational, and unequal
c. real, rational, and equal
d. real, rational, and unequal
Answers
Answer:
b. real, irrational, and unequal
Step-by-step explanation:
Roots of a quadratic equation
The standard representation of a quadratic equation is:
[tex]ax^2+bx+c=0[/tex]
where a,b, and c are constants.
Solving with the quadratic formula:
[tex]\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
The argument of the radical is called the discriminant:
[tex]d=b^2-4ac[/tex]
The nature of the solutions of the equation depends on the value of d as follows:
If d is zero, there is only one real (and rational) root.If d is positive, there are two real unequal roots. If also d is a perfect square, then the roots are also rational. If d is not a perfect square, the roots are irrational.If d is negative, there are two unequal complex roots.We are given the equation:
[tex]-2x^2+6x+5=0[/tex]
Here: a=-2, b=6, c=5. The discriminant is:
[tex]d=6^2-4(-2)(5)=36+80=116[/tex]
d = 116
Since d is positive and a non-perfect square, the roots are:
b. real, irrational, and unequal
In what quadrant is the point (5, −8) located?
A) I
B) II
C) III
D) IV
Answers
Answer:
c) third quadrant
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
the quadrants are labeled left to right. Comment if u have any questions :)
The table below shows the total cost for various pounds of trail mix. Based on the information in the table, how much will 8 pounds of trail mix cost?
2
5
-
3
7.50
-
4
10
-
5
12.50
Answers
Answer:
20
Step-by-step explanation:
The data {(0, 14), (1, 12), (2, 10), (3, 8), (4, 6)) is:
linear.
nonlinear.
Answers
i took the test
On Roberto's shelf there are:
• 7 mystery books
• 6 science books
• 4 history books
• 3 adventure books
Roberto will randomly choose 1 book to read. What is the probability in decimal form that he will choose a history book?
Answers
Answer:
he would have a 20% chance he will pick a history book, so in decimal form it would be .2
Step-by-step explanation:
7+6+4+3=20
20*5=100
5*4=20
Plllzzzz answer this question, if Ronny when 68 miles per hour in his Tesla sports, how long will it be till he gets to his brother's house, his house is 92 miles from him consider- ring the fact that his wheel popped and lost two hours fixing it since he simply could not go that fast he, reduced his speed by 20 mph, how long will it take him to show up.
yes this is on my test
Answers
Answer:
the class has 12 girls and 16 boys what is the ratio of the total students to boys in simplest form
Find the greatest common factor of 7,15, and 21.
Answers
Answer:
The common factors for 7,15,21 7 , 15 , 21 are 1 . The GCF (HCF) of the numerical factors 1 is 1 .
the greatest common factor of 7, 15, and 21 is 21.
To find the greatest common factor (GCF) of 7, 15, and 21, we can start by finding the prime factorization of each number:
7 = 1 × 7
15 = 1 × 3 × 5
21 = 1 × 3 × 7
Next, we identify the common prime factors among the numbers, which are 3 and 7. To find the GCF, we take the product of these common prime factors:
GCF(7, 15, 21) = 3 × 7 = 21
Therefore, the greatest common factor of 7, 15, and 21 is 21.
Learn more about greatest common factor here
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What is the simplified value of the expression below?
-8* (-3)
-24
—11
оооо
Answers
Answer:
-8(-3)=24
maybe you could put me as brainliest?
tan a =-4/3 a lies in quadrant 2 B=2/3 b lies in quadrant 1
Answers
Answer:
m
Step-by-step explanation:
m
Simplify
(3x^2-5xy+2y-9)+(x^2-10y+6xy)
Answers
A father complained that his son's allowance of $5 per week
was too much. The son replied, "Okay, Dad. How about this?
You give me a penny for the first day of the month, 2 cents for
the next, 4 cents for the next, 8 cents for the next, and so on for
every day of the month." The father readily consented. Who was
the more clever? What would the son's allowance be on day 31?
Answers
Answer
I won’t say the answer but here
Step-by-step explanation:
So do 8+8 then 16+16 and keep going
50 POINTS! *URGENT*
Show that Polygon A is congruent to Polygon B.
A. rotate 90 clockwise then translate 4 units to the right.
b. rotate 180
c. reflect across y-axis the rotate 90 clockwise
D. rotate 90 counterclockwise then translate 4 units to the right.
Answers
Answer:
When the point is rotated through 90° clockwise about the origin, the point M (h, k) takes the image M' (k, -h). Therefore, the new position of point M (-2, 3) will become M' (3, 2). 2. Find the co-ordinates of the points obtained on rotating the point given below through 90° about the origin in clockwise direction.
option A
Answer:
D. rotate 90 counterclockwise then translate 4 units to the right
Two coins, A and B, each have a side for heads and a side for tails. When coin A is tossed, the probability it will land tails-side up is 0.5. When coin B is tossed, the probability it will land tails-side up is 0.8. Both coins will be tossed 20 times. Let A represent the proportion of times coin A lands tails-side up, and let PB represent the proportion of times coin B lands tails-side up. Is the number of fosses for each coin enough for the sampling distribution of the difference in sample proportions PA-PB to be approximately normal?
a. Yes, 20 tosses for each coin is enough.
b. No, 20 tosses for coin A is enough, but 20 tosses for coin B is not enough.
c. No, 20 tosses for coin A is not enough, but 20 tosses for coin B is enough.
d. No, 20 tosses is not enough for either coin.
e. There is not enough information given to determine it 20 tosses is enough.
Answers
Answer:
Is the number of tosses for each coin enough for the sampling distribution of the difference in sample proportions PA-PB to be approximately normal?
b. No, 20 tosses for coin A is enough, but 20 tosses for coin B is not enough.
Step-by-step explanation:
a) Data and Calculations:
The probability of coin A landing tails-side up = 0.5
The proportion of times coin A lands tails-side up (PA) = 20 * 0.5 = 10
Therefore, the probability of coin A landing heads-side up = 0.5 (1 - 0.5)
And the proportion of times that coin A lands heads-side up = 20 * 0.5 = 10.
The proportion on either side is equally distributed.
This is why 20 tosses for coin A is enough, since the sample proportions PA is approximately normal, symmetric, and equally distributed. There will be equal amounts of 10 tosses (0.5 *20) for either heads-side up or tails-side up.
For coin B, the probability of landing tails-side up = 0.8
The proportion of times coin B lands tails-side up (PB) = 20 * 0.8 = 16
Therefore, the probability of coin B landing heads-side up = 0.2 (1 - 0-.8)
The proportion on either side is not equally distributed, but skewed.
This is why 20 tosses for coin B is not enough, since the sample proportions PB is not approximately normal, symmetric, and equally distributed. There will be 16 tosses landing tails-side up (0.8*20) and only 4 tosses landing heads-side up (0.2*20).
The true statement about the sample proportions of coins A and B is (b) No, 20 tosses for coin A is enough, but 20 tosses for coin B is not enough.
The given parameters are:
Coin A
[tex]p = 0.5[/tex] --- the probability of landing tails-side up
[tex]n = 20[/tex] --- number of toss
Coin B
[tex]p = 0.8[/tex] --- the probability of landing tails-side up
[tex]n = 20[/tex] --- number of toss
Start by calculating the expected number of times both coins land on either sides.
For coin A, we have:
Expected number of tails
[tex]Tails = np[/tex]
[tex]Tails = 20 \times 0.5[/tex]
[tex]Tails = 10[/tex]
So, the expected number of heads would be:
[tex]Head = n - Tails[/tex]
[tex]Head = 20 - 10[/tex]
[tex]Head = 10[/tex]
This means that, there will an expected equal amount of outcomes for the heads and tails of coin A.
Hence, 20 tosses is enough for coin A because the proportion is equally distributed and approximately normal.
For coin B, we have:
Expected number of tails
[tex]Tails = np[/tex]
[tex]Tails = 20 \times 0.8[/tex]
[tex]Tails = 16[/tex]
So, the expected number of heads would be:
[tex]Head = n - Tails[/tex]
[tex]Head = 20 - 16[/tex]
[tex]Head = 4[/tex]
This means that, there won't be an expected equal amount of outcomes for the heads and tails of coin B.
Hence, 20 tosses is not enough for coin B because the proportion is neither equally distributed nor approximately normal.
So, the correct option is (b)
Read more about sample proportion at:
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A 10-ft tree makes an 18-ft shadow. About how tall is a person who makes a 12-ft shadow at the same time?
Answers
Answer:
20
Step-by-step explanation:
In this formula, C represents the total charge for babysitting and I represents the
number of hours the child is kept. How much should Joe pay if his child is at the
babysitting service for 3 hours?
C = $5.25 + $2.50H
Please help
Answers
Answer:
12.75
Step-by-step explanation:
Ez
Find the value of "x" in the figure shown.
Answers
Step-by-step explanation:
x+118°=180(supplementary angles)
x=180-118
x=62°
SOMEONE HELP ME I REALLH NEED IT Which operation would you do first 5-(5+3) divided by 2
A. Subtract
B.divide
C. Multiply
D. Add
Answers
Answer:
d. add
Step-by-step explanation:
There are 90 notebooks and a bear and 30% of the notebooks are orange how many orange notebooks are in the bin
Answers
Answer:
27
Step-by-step explanation:
If there are 90 notebooks, and 30% are orange, there would be 27 orange notebooks. 30% of 90 is 27.
Find the value of x. 30 POINTS! *URGENT*
Answers
Answer:
[tex] x = 7[/tex]
Step-by-step explanation:
Value of the exterior angle is equal to the addition of the opposite interior angles in a triangle
[tex]19 + 20 = 6x - 3 \\ 39 = 6x - 3 \\ 39 + 3 = 6x \\4 2 = 6x \\ \frac{42}{6} = \frac{6x}{6} \\ x = 7[/tex]
John needs to take a taxi in New York. A two mile taxi ride cost $3.90. A five mile taxi ride in
the same taxi cost $7.50. If x represents the miles driven and y represents the cost in dollars,
What is the linear equation that would model the cost of a taxi ride?
han intercont form. vaform *
Answers
Answer:
It would be 1.2x+ + 1.5
Step-by-step explanation:
Here's why. Since they are both growing at the same rate and it can't be 1.95 or the second one would be 9.75 you have a starting price for 0 miles that being 1.50 and take the remaining amount and divide
simplify by dividing (-5/8)÷(-3/4)
Answers
Answer:
5/6 = 20/24
Step-by-step explanation:
Simplify the following:
((-5)/8)/((-3)/4)
Multiply the numerator by the reciprocal of the denominator, ((-5)/8)/((-3)/4) = (-5)/8×4/(-3):
(-5×4)/(8 (-3))
4/8 = 4/(4×2) = 1/2:
(-5)/(2 (-3))
2 (-3) = -6:
(-5)/(-6)
Multiply numerator and denominator of (-5)/(-6) by -1:
Answer: 5/6
