Answer:
b. 3x-5
7(x-2)-4x+9
7x-14-4x+9
(7x-4x)(-14+9)
3x-5
marys age is 2 upon 3 that of peters age. two years ago marys age was 1 upon 2 of whats peters age will be in 5years time. how old is peter now plzz
Answer:
the Peter age be 27
Step-by-step explanation:
Let assume peter be
And, then mary is 2p ÷ 3
So
The equation would be
2p ÷ 3 - 2 = 1 ÷ 2 (p + 5)
4p - 12 = 3p + 15
p = 27
So Peter age be 27
And, the mary age is
= 2 (27) ÷ 3
= 18
Hence, the Peter age be 27
Nicole has a new beaded necklace. 10% of the 20 beads on Nicole's necklace are blue. How many blue beads are there on Nicole's necklace?
Answer:b
Step-by-step explanation:
Answer:
There is 2 blue beads on Nicole's necklace.
Step-by-step explanation:
In order to find out how much blue beads Nicole has on his necklace we just have to multiply the total among of the bead on the necklace by the 10%.
20 x 10% = [tex](20) (\frac{1}{10} )[/tex] = [tex]2[/tex]
how many people are in the set C n D
Answer:
Numbers 15, 3, 1, and 21 are all in common with C & D. This is totaled up to 4 people.
Step-by-step explanation:
please i need help fast
Answer:
15 a. It is not a rectangle bc the sides of a rectangle are always the same.
b. It is a right triangle bc on D it is 90 degrees.
c. It is not an isosceles triangle bc an isosceles triangle's base is always even but the one in the picture is not
Step-by-step explanation:
Write an equation of the perpendicular bisector of the segment with the endpoints (8,10) and ( -4,2).
y =
Answer:
The required equation is:
[tex]y = -\frac{3}{2}x+9[/tex]
Step-by-step explanation:
To find the equation of a line, the slope and y-intercept is required.
The slope can be found by finding the slope of given line segment. A the perpendicular bisector of a line is perpendicular to the given line, the product of their slopes will be -1 and it will pass through the mid-point of given line segment.
Given points are:
[tex](x_1,y_1) = (8,10)\\(x_2,y_2) = (-4,2)[/tex]
We will find the slope of given line segment first
[tex]m = \frac{y_2-y_1}{x_2-x_1}\\= \frac{2-10}{-4-8}\\=\frac{-8}{-12}\\=\frac{2}{3}[/tex]
Let m_1 be the slope of perpendicular bisector then,
[tex]m.m_1 = -1\\\frac{2}{3}.m_1 = -1\\m_1 = \frac{-3}{2}[/tex]
Now the mid-point
[tex](x,y) = (\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})\\= (\frac{8-4}{2} , \frac{10+2}{2})\\=(\frac{4}{2}, \frac{12}{2})\\=(2,6)[/tex]
We have to find equation of a line with slope -3/2 passing through (2,6)
The equation of line in slope-intercept form is given by:
[tex]y = m_1x+b[/tex]
Putting the value of slope
[tex]y= -\frac{3}{2}x+b[/tex]
Putting the point (2,6) to find the y-intercept
[tex]6 = -\frac{3}{2}(2)+b\\6 = -3+b\\b = 6+3 =9[/tex]
The equation is:
[tex]y = -\frac{3}{2}x+9[/tex]
The equation of the perpendicular bisection that passes through the point (2,6) and has a slope -3/2 is [tex]\rm (y-6)=-\dfrac{3}{2}(x-2)[/tex] and this can be determined by using the point-slope form of the line.
Given :
Endpoints -- (8,10) and (-4,2)
The following steps can be used in order to determine the equation of the perpendicular bisector:
Step 1 - First, determine the slope of the line that passes through points (8,10) and (-4,2).
[tex]\rm m =\dfrac{2-10}{-4-8}[/tex]
[tex]\rm m = \dfrac{8}{12}[/tex]
[tex]\rm m = \dfrac{2}{3}[/tex]
Step 2 - So, the slope of the perpendicular bisector is given by:
[tex]\rm m'm = -1[/tex]
[tex]\rm m' = -\dfrac{3}{2}[/tex]
Step 3 - Now, determine the midpoint of the line that passes through the points (8,10) and (-4,2).
[tex]\rm x = \dfrac{8-4}{2}=2[/tex]
[tex]\rm y = \dfrac{10+2}{2}=6[/tex]
Step 4 - So, the equation of the perpendicular bisection that passes through the point (2,6) and has a slope -3/2 is:
[tex]\rm (y-6)=-\dfrac{3}{2}(x-2)[/tex]
For more information, refer to the link given below:
https://brainly.com/question/11897796
Evaluate each expression for the given variable
34 + 4/9w for w = -1/2
a
32 and 5/8
b
33 and 7/9
c
26 and 2/7
d
29 and 2/3
Answer:
B
Step-by-step explanation:
The value of expression 34 + 4/9 w at w = -1/2 is [tex]33\frac{7}{9}[/tex]
What is an expression?The definition of an expression in maths is a statement composed of terms and operations.
Given an expression, 34 + 4/9 w
Put w = -1/2
34 + 4/9*(-1/2)
= 34 - 2/9
= 304/9 = [tex]33\frac{7}{9}[/tex]
Hence, The value of expression 34 + 4/9 w at w = -1/2 is [tex]33\frac{7}{9}[/tex]
For more references on expression, click;
https://brainly.com/question/14083225
#SPJ2
Convert 0.79 to a %
Hey! I need help giving brainliest to correct answer plz try.
The table below shows all of the possible outcomes of rolling a six-sided number cube and flipping a coin.
A 7-column table with 2 rows. Column 1 has entries H, T. Column 2 is labeled 1 with entries H 1, T 1. Column 3 is labeled 2 with entries H 2, x. Column 4 is labeled 3 with entries H 3, T 3. Column 5 is labeled 4 with entries H 4, T 4. Column 5 is labeled 4 with entries H 4, T 4. Column 6 is labeled 5 with entries H 5, T 5. Column 7 is labeled 6 with entries H 6, T 6.
Which outcome is represented by x?
rolling a two and the coin landing on tails
rolling a three and the coin landing on tails
rolling a two and the coin landing on heads
rolling a three and the coin landing on heads
Answer:
5/10
Step-by-step explanation:
hope this helped
Answer:
Its A
Step-by-step explanation:
At the supermarket Pryslide, 500ml bottles of shower gel cost $7 each. However, since the beginning of last week there has been a special offer: ‘Buy 2 bottles, get another one for $2.’ Yesterday, the total income from the sales of these bottles was $323. What is the maximum number of bottles that were bought for $2 yesterday?
Answer:
2500
Step-by-step explanation:
To solve this problem you multiply 750 by 100 and then divide the total by 30
What situation can be represented by the equations y=2x.
A. Mrs. Burns usually beats Mr. Burns at Uno. Only 2 times out of 10 was Mr. Burns able to win
B.One their evening walk, every step Mrs. Burns takes, Max will take 12.
C.Max was playing fetch with Mrs. Burns. Every 1 out of 3 frisbees that Mrs. Burns threw, Max was able catch.
D.Mrs. Burns wants to drain and remodel her pool. She has to drain the pool at a rate of 2 gallons per second until it is empty.
Answer:
D
Step-by-step explanation:
Every second the amount of gallons goes up by 2, so the equation y = 2x would match.
Whats the answer for number 13?
Answer:
I think A
Step-by-step explanation:
What is the simplified value of the exponential expression 16^1/4
1/2
1/4
2
4
Answer:
2
Step-by-step explanation:
2×2×2×2 = 16
Or
2² × 2² = 16
in a particular class of 35 students, 10 are men. What fraction of the students in the class are men?
Answer:
2/7
Step-by-step explanation:
put the total number of boys over the total number of stuedents
10/35 then simplify by dividing top and bottom by 5 2/7
Answer:
2/7
Step-by-step explanation:
10/35
reduce fraction
10÷5=2
35÷5=7
Alex makes $400 a week how much money dose he spend on rent each week (10 points)
please help me
Answer:
100
Step-by-step explanation:
80 + 72 + 60 + 48 + 40
what is 3/10 of 365=
PLEASE HELP ME
Answer:
109.5 i hope this helps tell me if its right
The rise is .35, the run is 5. Find the slope
Answer:
7
Step-by-step explanation:
[tex]slope = \frac{rise}{run} = \frac{35}{5} = 7 \\ [/tex]
Write an expression that represents the height of a tree that begins at 3 feet and increases by 2 feet per year. Let t represent the number of years.
___+___t
Answer:
3+2t
Step-by-step explanation:
could you help me with this plz
Answer:
B. 203.403
Step-by-step explanation:
2 times 100 = 200
3 times 1 = 3
4 times 1/10 = 0.4
3 times 1/1000 = 0.003
200 + 3 = 203
203 + 0.4 = 203.4
203.4 + 0.003 = 203.403
If the simple interest on 3,000$ for 3 years is 450$, then what is the interest rate?
Answer/Step-by-step explanation:
The interest rate is 15% for every 3 years. To find the interest rate subtract the money from the total. Then, divide the total from the difference. Now subtract the quotient from 100 and multiply it by 100 to fin the percentage.
3000 - 450 = 2550
2550 ÷ 3000 = 0.85
100 - 0.85 = 0.15
0.15 x 100 = 15%
A Honda dealership sells both motorcycles and cars.there are a total of 200 vehicles on the dealership's lot. the detailer cleaned all the wheels of all the vehicles, which totaled 698 wheels. how many motorcycles and cars are there on the lot?
Answer:
x = 149, cars and 51 motorcyles
Step-by-step explanation:
4x + 2(200-x) = 698
2x = 298 x = 149, cars and 51 motorcyles
Algerba :)) pls help
Answer:
The first one is B, the second is A
Step-by-step explanation:
For a polynomial to be in standard form, it needs to have the exponents decreasing from left to right. In order from left to right, B goes 7,3,2,1,0, hence it is in standard form.
A polynomial cannot have a fractional exponent, hence a is not a polynomial.
Laura walked 6 1/2 laps of a circular path in 2 hours. At that rate, how many laps of the
path did she walk in one hour?
Answer:
3.25 in one hour
Step-by-step explanation:
6.5 ÷ 2 = 3.25
What is the measure of angle x?
10
20
30
40
-4=-5+v/14 what is v
Answer:
14
Step-by-step explanation:
-4+5=1
1=v/14
1x14=14
14=v
Sara is building a triangular pen for her pet rabbit. If two of the sides measure 8 feet and 15 feet, the length of the third side could be
1) 13 ft
2) 7 ft
3) 3 ft
4) 23 ft
Answer:
1) 13 ft
Step-by-step explanation:
1) 13+8=21 which is greater than 15. Would be a triangle.
2) 7+8=15 This would be a single line, not a triangle.
3) 3+8<15 This would be a single line, not a triangle.
2) 15+8=23 This would be a single line, not a triangle.
How to find the hypothesis
Answer:
You dont need to
Step-by-step explanation:
A hypothesis is just a guess, so you cant be wrong
A French class has a total of students. The number of males is more than the number of females. How many males and how many females are in the class
Answer: Male = 25
Female = 19
Step-by-step explanation:
Your question isn't complete. Let's form another identical question and solve.
A french class has a total of 44 students. The number of males is 6 more than the number of females. How many males and how many females are in the class?
Let the number of females be x
Therefore males = x + 6
Total students = 44
Therefore, x + x + 6 = 44
2x + 6= 44
2x = 44 - 6
2x = 38
x = 38/2 = 19
There are 19 females
Males = x + 6 = 19 + 6 = 25
how do you give and get brainliest some tell me. (WILL GIVE 10 POINTS)
What divided by three equals 6
Answer:
18
Step-by-step explanation:
18÷3=6
Answer:
18
Step-by-step explanation:
6*3=18
18/3=6
how to solve this one
Answer:
x= -7 and y=37
Step-by-step explanation:
substitute y=-26-9x in -2x-y=12
-2x-(-26-9x)=12
-2x+26+9x=12
-2x+9x=12-26
7x= -14
x= -14/2
x= -7
substitute x=-7 in y=26-9x
y= -26-9x
y= -26-9(-7)
y= -26+63
y=37
x= -7 and y=37