Answer:
4
Step-by-step explanation:
is the answer
mark me as brainlist
Can somone help me on this with an explanation PLZ :(
2. Out of 35 students participating in a debate, 10 are girls. The probability that winner is a boy is: a)1/7 b)3/7 c)4/7 d)5/7
Answer: d) 5/7
Step-by-step explanation:
10 out of 35 of the students are girls. The number of boys is therefore:
= 35 - 10
= 25 boys
Probability that the winner is a boy is:
= 25/35
Take that fraction to the simplest by dividing both by 5:
= 5/7
Please answer please ASAP * please don’t answer if you don’t know please .
Answer:
x = 26
Step-by-step explanation:
1. Information
One can partition this figure into three different parts, two congruent triangles, and one rectangle. To find the value of x, one has to find the base of the two triangles, and then the base of the rectangle. Since opposite sides are congruent, the base of the rectangles is 10. To find the base of the triangle, one has to use the Pythagorean theorem.
2. Base of the rectangle
Again, opposite sides are congruent, hence the base of the rectangle is equivalent to the top part. Hence the base is 10.
3. Base of the triangle
Use the Pythagorean theorem;
[tex]a^{2}+b^{2} = c^{2}\\a-leg\\b-leg\\c-hypotenuse[/tex]
Substitute in the given value and solve
[tex]a^{2}+15^{2} = 17^{2}\\a^{2} + 225 = 289\\a^{2} = 64\\a = 8[/tex]
4. Finding x
There are two congruent trinagles, hence one has to add the base of the triangle twice. The equation will be
x = base_of_triangle + base_of_rectagle + base_of_triangle
x = 8 + 10 + 8
x = 26
-7x - 36 = 20 -3x
Help
Step-by-step explanation:
-7x-36=20-3x
-36-20=-3x+7x
-56=4x
-56/4=X
-14=X
X=-14 answer
Daniel wants to save $175 for a trip to an amusement park. He sets aside $14 of his allowance at the end of each week. How many weeks will it take him to save enough money for the whole trip
Answer:
It would take 13 weeks to make 175$ for the trip.
Step-by-step explanation:
If you take 175 divided by 14 you get 12.5, but since you can't do 12.5 weeks you'd round the number of weeks up to 13.
is 7x+y+3=y a linear equation. also is this in standard form
Answer:
Hi! The correct answer is 7x=-3!
Step-by-step explanation:
~Write in standard form~
Steve and Stephanie both get weekly allowances. Steve receives $15 plus $1.25 for every hour he completes housework. Stephanie receives $5 for every hour she completes housework. Write the equation that represents the situation. Let h represent the number of hours. Solve the equation. How many hours of housework do they need to complete for their allowances to be equal?
Answer:
25
Step-by-step explanation:
Steve and Stephanie need to complete 4 hours of housework for their allowances to be equal.
What is equation?"It is a mathematical statement which consists of equal symbol between two algebraic expressions."
For given question,
Let 'x' represents the Steve's weekly allowances and 'y' represents the Stephanie's weekly allowance.
Let h represent the number of hours.
Steve receives $15 plus $1.25 for every hour he completes housework.
So, we get an equation,
⇒ x = (1.25)h + 15
Stephanie receives $5 for every hour she completes housework.
So, we get an equation,
⇒ y = 5h
We need to find the number of hours of housework they need to complete for their allowances to be equal.
When their allowances are equal,
⇒ x = y
⇒ (1.25)h + 15 = 5h
⇒ 3.75 h = 15
⇒ h = 4 hours
Therefore, they need to complete 4 hours of housework for their allowances to be equal.
Learn more about an equation here:
https://brainly.com/question/13170101
#SPJ3
PLEASE HELP WILL GIVE BRAINLIEST!!!!!!!
Answer:
tan x = 3/4
Step-by-step explanation:
Tan = opposite over adjacent
then simplify
6/8 = 3/4
Determine whether a triangle can be formed with the given side lengths.
10 ft, 3 ft, 19 ft
A triangle _____________ have these three side lengths.
(CAN OR CAN NOT)
Answer:
CAN NOT
Step-by-step explanation:
The rule is that for three sides (say a, b, c) to firm a triangle, the sum of any two side must be greater than the third side.
Since 10+3 < 19, a triangle can not be formed
Which of the following expressions are equivalent? Justify your reasoning.
A. x34
B. 1x−1
C. x5•x4•x210
D. x13•x13•x13
Justify why it’s B and D
Answer
Step-by-step explanation:
i dont know but pls dont hate me no one anserd for 15 hours so i took some points
Question Progress
Exam Paper Progress
177
Grade For This Paper
1
Sue is thinking of a number.
3
of 88
1
8
8
What number is she thinking of?
Question:
Sue is thinking of a number 3/8 of 88 = 1/3 of her number
what number is she thinking of
Answer:
[tex]x = 99[/tex]
Step-by-step explanation:
Represent the number with x.
So, we have:
[tex]\frac{3}{8} * 88 = \frac{1}{3} *x[/tex]
Multiply through by 3
[tex]3 * \frac{3}{8} * 88 = \frac{1}{3} *x * 3[/tex]
[tex]3 * \frac{3}{8} * 88 = x[/tex]
[tex]3 * 3 * 11 = x[/tex]
[tex]99= x[/tex]
[tex]x = 99[/tex]
Hence, she is thinking of 99
60 PTS+ BRAINLIEST IF CORRECT (RANDOM OR INCOMPLETE ANSWERS WILL BE REPORTED)
Question 1(Multiple Choice Worth 1 points)
(05.05 MC)
Given the frequency table, what percentage of the students that like rock are also in grades 11–12? Round to the nearest whole percent.
Band Preference for School Dance
Rap Rock Country Row totals
Grades 9–10 40 30 55 125
Grades 11–12 60 25 35 120
Column totals 100 55 90 245
10%
21%
25%
45%
Answer:
d. 45%
Step-by-step explanation:
According to the frequency table there are 30 sudents who like rock in grades 9-10 and 25 students that like rock and are in grades 11-12.
25 ÷ 55 = n ÷ 100
25 · 100 = 55 · n
2500 ÷ 55 = n n = 45.454545 n = 45%
55 is the total amount of students that like rock
25 is the total amount of students that like rock in grades 11-12
100 is the total percentage
What is the slope of this line?
A) Positive slope
B) Negative slope
C) zero
D) undefined
Clare went to a concession stand that sells pretzels for $3.25, drinks for $1.85, and bags of popcorn for $0.99 each. She bought at least one of each item and spent no more than $10. Could Clare have purchased 2 pretzels, 2 drinks, and 2 bags of popcorn? Explain your reasoning. Check your work with the video when you are ready
Answer:
No.
Step-by-step explanation:
Price of each pretzel = $3.25
Price of each drink = $1.85
Price of each bag of popcorn = $0.99
Maximum money to be spent = $10
Price of two pretzels = $3.25 [tex]\times[/tex] 2 = $6.5
Price of two drink = $1.85 [tex]\times[/tex] 2 = $3.70
Price of two bags of popcorn = $0.99 [tex]\times[/tex] 2 = $1.98
Total money spent for buying two items of each type = $6.5 + $3.70 + $1.98 = $12.18
The money spent when 2 pretzels, 2 drinks and 2 bags of popcorn are bought is $12.18.
But maximum money available is $10.
Therefore, Clare would not be able to buy 2 pretzels, 2 drinks and 2 bags of popcorn with the amount of money available.
In the morning the temperature was -9°F The temperature increased by
25° at noon. Which was the temperature at noon?
Answer:
16
Step-by-step explanation:
Plss help. I am having trouble with question (d).
Answer:
im not sure...cuz it says 50%
its either 11.625 or 5.8125
it is the 1st one if the question means all average but if not PROBABLY only PROBABLY the right one
Step-by-step explanation:
I added all the hours together and divided it by 24 to get 11.625 but if the ans is 5.1825 ill divide 11.625 over 2
What is the slope of a line perpendicular to the line whose equation is 10 x + 6 y = − 84 10x+6y=−84.
Answer:
3/5
Step-by-step explanation:
The equation of a line is written as
y = mx + b where
m is the slope
b is the y-intercept.
We put the given equation above in that form
10x + 6y = - 84
6y = -10x - 84
Divide both sides by 6
y = -10x/6 - 84/6
y = -5x/3 - 14
y = -5/3x - 14
The slope of this line is -5/3
But we are told that: the slope of the line is perpendicular to the line
Hence: we find the reciprocal of , -5/3
This is = 3/5
Therefore, the slope of a line perpendicular to the line whose equation is 10x + 6y = −84 is 3/5
Solve the system of linear equations by graphing. y=-3x + 1 y = x- 7
Answer:
(2,-5)
Step-by-step explanation:
Find Cara's average speed for her run.
Answer:
I would say 800, sorry if it was wrong
Step-by-step explanation:
She ran the most on 800
need help solving a practice question
Answer:
x=10
Step-by-step explanation:
Using Pythagoras theorem
H^2=O^2+A^2
26^2=24^2+A^2
676= 576+A^2
676-576= A^2
100= A^2
square root both sides
10= A
Therefore, x=10
The graph shows the solution to which system of inequalities
Answer: the third one
Step-by-step explanation:Hope this is correct
Write the equation of the line that passes through the points (2, 1) and (5, -8)
Answer:
The answer is y = -3x + 7.
Step-by-step explanation:
❃Incase you forgot what the linear equation formula is ☟
[tex]y = mx + b[/tex]
❃Incase you also forgot, what the slope formula is ☟
[tex]m = \frac{y_2 - y_1}{x_2 - x_1} [/tex]
➊ First: We are going to be solving for the slope.
[tex]m = \frac{ - 8 - 1}{5 - 2} = \frac{ - 9}{ \: \: \: 3} = - 3[/tex]
➋Second: We find the y-intercept.
[tex]y = mx + b \\ 1 = - 3(2) + b \\ 1 = - 6 + b \\ \frac{ + 6 = + 6 \: \: \: \: \: \: \: \: \: }{7 = b}[/tex]
➌Third: Plug in.
[tex]y = - 3x + 7[/tex]
Question 2 of 5
Ethan buys 4 packs of muffins. He uses a coupon and
saves $2 off the total.
Which expression represents his total cost?
O A. 4- 2m
B. 4+2
C. 4m - 2
D. 4m + 2
Giving brainliest
Answer:
It is c you are subtracting for the 4 pack of muffins
Answer:
C
Step-by-step explanation:
Assuming that m represents the cost, the correct answer would be C because you are buying 4 packs of muffins and you are subtracting 2 dollars. This is very hard to explain, it's easier to explain with numbers.
Let's assume that each pack of muffins is 2 dollars. Since we are buying 4 packs, we would multiply the number of packs (4) by the amount each pack costs (2). Then since we have a 2 dollar coupon, we subtract two dollars off of the price, so the equation would be 4(2)-2 where 2 represents m.
It wouldn't make sense to add two dollars because we have a coupon, so we're saving money, not adding money.
and it wouldn't make sense for the coupon to be saving more money by how much the cost of the muffin is, otherwise we would get it for free!!
The only logical answer is C because we are saving money and 4m represents the amount of money we are spending on the muffins.
What is 27.4 + 33.68 = please
Answer:
61.08
Step-by-step explanation:
you could've used a calculator
Answer:
61.08
Step-by-step explanation:
add 33.68
+ 27.4
______
61.08
hope this helps!!!
what is the expression 4c - 3 when c = 2
PLS JELP NOWOWOWIWOW
Answer:
last option. absolute value doesnt matter whether it is positive or negative
Step-by-step explanation:
How many solutions does the equation have? 3 (4x – 1) = 12x – 3
answers ‘ one solution , no solution , infinite solution ‘ please answer im timed FOR 20 POINTS
The original price of a pair of shoes is $45. The sale price is 20% off the original price. What is the amount off of the original price?
Answer:
36.00$
Step-by-step explanation:
Saved 9$
Answer:
9.00
Step-by-step explanation:
9.00 is taken off the original price
45-9=36
Could someone check my answer?
(I'm pretty sure it's neither).
Answer:
i don't think it's right
Step-by-step explanation:
Answer:
The answer to the question provided is neither.
-
Step-by-step explanation:
☆We need to find the y value for the second equation first.
[tex] - 2x + 10y = 5 \: \: \: \: \: \: \\ \frac{ + 2x \: \: \: \: \: \: \: \: = + 2x}{ \frac{10y}{10} = \frac{2x + 5}{10} } \\ \\ y = \frac{1}{5} x + \frac{1}{2} [/tex]
☆Its neither because the slopes arent the same and also isn't a negative reciprocal.
Find the values of x and y. Write your answers in simplest form
Answer:
[tex]x =6[/tex]
[tex]y=6\cdot \sqrt{2}[/tex]
Step-by-step explanation:
Trigonometric Ratios
The ratios of the sides of a right triangle are called trigonometric ratios. There are six trigonometric ratios: sine, cosine, tangent, cosecant, secant, and cotangent.
The longest side of the right triangle is called the hypotenuse and the other two sides are the legs.
Choosing any of the acute angles as a reference, it has an adjacent side and an opposite side. The trigonometric ratios are defined upon those sides.
The image shows a right triangle where the angle of 45° has x as the opposite leg, 6 as the adjacent leg, and y as the hypotenuse. The trigonometric ratio that applies here is the cosine ratio, defined as:
[tex]\displaystyle \cos\theta=\frac{\text{adjacent leg}}{\text{hypotenuse}}[/tex]
[tex]\displaystyle \cos 45^\circ=\frac{6}{y}[/tex]
Solving for y:
[tex]\displaystyle y=\frac{6}{\cos 45^\circ}[/tex]
[tex]\cos 45^\circ=\frac{\sqrt{2}}{2}=\frac{1}{\sqrt{2}}[/tex]
Substituting:
[tex]\displaystyle y=\frac{6}{\frac{1}{\sqrt{2}}}[/tex]
[tex]y=6\cdot \sqrt{2}[/tex]
Now use the tangent ratio:
[tex]\displaystyle \tan\theta=\frac{\text{opposite leg}}{\text{adjacent leg}}[/tex]
[tex]\displaystyle \tan 45^\circ=\frac{x}{6}[/tex]
Solving for x:
[tex]x=6\cdot\tan 45^\circ[/tex]
[tex]\tan 45^\circ=1[/tex]
Substituting:
[tex]x=6\cdot 1[/tex]
[tex]x =6[/tex]
Answer:
[tex]x =6[/tex]
[tex]y=6\cdot \sqrt{2}[/tex]