Answer:
x=1 y=1
Step-by-step explanation:
(x + y = 2)×2
2x+ 7y = 9
2x + 2y = 4
2x+ 7y = 9
-5y =-5
y= 1
2x+7(1)=9
2x=2
x=1
2x−7=−19 x =
x/-3+5=12 x =
3/4x −5=4 x =
i need help with this
2(5x+4)=
solve 8u<35 plz help
Answer:
u < 35/8
Step-by-step explanation:
u < 35/8 (divide by 8)
A histogram titled Number of payphones has date on the x-axis and payphones on the y-axis. From 1981 to 1985 there were 160 payphones, 1986 to 1990: 190, 1991 to 1995: 200, 1996 to 2000: 210, 2001 to 2005: 55, 2006 to 2010: 45.
The histogram shows the number of payphones that were active by year in a large city. How many payphones would you expect to be active between 1976 and 1980?
A.) over 200
B.) between 150 and 200
C.) between 50 and 100
D.) fewer than 50
Answer:
b
Step-by-step explanation:
this is the most likely answer because from '81 to '00 there were between 150-200, so it is also likely in this range
ABCD is a parallelogram. If mZCDA = 63, then mZABC = _?_ The diagram is not to scale.
Answer:
b. 63
Step-by-step explanation:
A Parallelogram is known to be a flat shape quadrilateral which has four opposite sides Each two opposite sides are parallel and are equal in length. The opposite angles are equal.
The above answer is correct because opposite angles of a parallelogram are equal:
m∠CDA = m∠ABC
where m∠CDA = 63
∴ m∠ABC = 63 (answer)
If a line passes through (4,13) and (6,19) what is the slope? And can you please explain how you got your answer
Answer:
The slope is 3.
Step-by-step explanation:
The equation for slope is either [tex]\frac{y2-y1}{x2-x1}[/tex] or [tex]\frac{y1-y2}{x1-x2}[/tex]. So this should be [tex]\frac{19-13}{6-4}[/tex], which is 3.
Answer:
Slope =
6
—
2
Step-by-step explanation:
First find the rise over run
Second use the format
Y2-y1
———-
X2-x1
Using the format you will get this
19-13
——
6-4
Next solve
Which then you get
6
—
2
A stainless steel pipe is used as a vent over a restaurant stove. The pipe is 6 feet long and its diameter is 12 inches. The pipe is open at both ends. To the nearest whole number, how many square feet of steel is the outer surface of the pipe?
Answer: 18 feet
Step-by-step explanation:
Well, first we need to find the circumference because that is the outside of the pipe.
Circumference = 2 x Pi x Radius
Radius is half of diameter.
So we plug in all the values in to the formula.
2 x Pi x 6 inches = Circumference
12Pi = 37.69911184 inches
37 inches to feet = about 3 feet.
3 x 6 = 18 feet.
Find the slope that contains the points (-1, 4) and (2,6).
Answer:
slope = 2/3
Step-by-step explanation:
A school is arranging a field trip to the zoo. The school spends 537.57 dollars on passes for 30 students and 3 teachers. The school also spends 290.40 dollars on lunch for just the students. How much money was spent on a pass and lunch for each student
Answer:
$17.22 was spent on a pass and $8.94 on lunch for each student and that implies a total of $26.16 was spent on each student
Step-by-step explanation:
2+2= 4 because there is too two's and there for it =4
Answer:
Yes, that is correct. Congrats 7 year old.
Step-by-step explanation:
2 plus 2 equals 4
:)
thanks for points
Solve the inequality
−y/2 ≤ 4
Answer:
4 is greater
Step-by-step explanation:
A negative divided by a positive = a negative.
No matter what y is, it will be a negative number.
Meaning, 4 a positive number, will be greater no matter what y is
Work out the length of DB in the diagram below.
Not drawn
to scale
С
5 cm
D
B
4 cm
E
А
18 cm
Answer:
10cm
Step-by-step explanation:
CDB and CEA are similar=>CD/CE=DB/EA=>5/9=DB/18=>
9DB=90
DB=10
The required length of DB in the diagram below is 10 cm.
What is the triangle?Triangle is a polygon that has three sides and three angles. The sum of the angle of the triangle is 180 degrees.
Given:
In the given triangle we have
СD=5 cm
DE= 4 cm
EA= 18 cm
According to given question we have
In a triangle CDB and CEA are similar
So,
[tex]\frac{CD}{CE} =\frac{DB}{EA}\\\\=\frac{5}{9} =\frac{DB}{18}\\\\=9DB=90\\\\DB=10[/tex]
Therefore, the required length of DB in the diagram below is 10 cm.
Learn more details about triangle here:
https://brainly.com/question/2773823
#SPJ5
1/2(6x - 10)-x+=? plz
Answer:
x=2.5
Step-by-step explanation:
1/2(6x-10)-x=0 Replace the ? with a 0 so you can solve for x.
So your going to want to distribute everything in parentheses by 1/2 first to get 3x-10-x=0 Next your going to simply the equation by combining like terms to get 2x-5=0. Next add five to both sides so that 2x=5. Finally divide both sides by 2 and the answer is x=2.5.
Hope this helped!
help pls. Question 4(Multiple Choice Worth 1 points)
(01.05 MC)
Which shows the expressions in the order they would appear on a number line from least to greatest?
Answer:
Second choose
Step-by-step explanation:
We know that 4^3 is the greatest
And 14/9 is the least
Below are two similar triangles.
A base= 7 cm
B base= 14cm
The area of triangle A is 20cm^2
Work out the area of triangle B
Answer:
Area of B =80
I hope it's helps you
Over what interval is f(x) negative? Justify your answer.
Answer in interval notation is (-3, 1)
This is the same as saying -3 < x < 1
=====================================================
Explanation:
Since y = f(x), this means we're looking for points on the red curve such that they have a negative y coordinate. Visually, we're looking for points that are below the horizontal x axis.
These points are shown in the diagram below. I've marked the section we're after in blue. This blue section spans from x = -3 to x = 1. We exclude both endpoints because each x value leads to f(x) = 0, but we want f(x) values smaller than zero.
In a preschool class there are 14 boys and 12 girls.
What is the ratio of girls to total?
Answer:
girl boy 6:7
Step-by-step explanation:
Answer:
12/26 or 6/13
Step-by-step explanation:
help me pls I'm so confused and this is due in the morning pls help. look at pic
a) Solve 3(x – 5) = 18
Answer:
x = 11
Step-by-step explanation:
3(x-5) = 18
Step one: Distrubute 3 to the numbers in the parenthesis.
3x - 15 = 18
Step two: Add 15 on both sides
3x = 33
Step three: Divide by 3 on both sides
x = 11
Ali, Ben, and Cliff plant seedlings in their neighborhood park. Ali plants 40% of the total number of seedlings, Ben plants 45% of the total number of seedlings, and Cliff plants the rest of the seedlings. If Cliff plants 87 seedlings, how many seedlings do the three boys plant altogether?
Answer:
580 seedlings altogether.
Step-by-step explanation:
Given that,
Ali plants 40% of the total number of seedlings, Ben plants 45% of the total number of seedlings, and Cliff plants the rest of the seedlings. Cliff plants 87 seedlings.
The percentage of the seedling planted by Cliff = 100% - 45% - 40% = 15%
Let x = the total number of seedlings
[tex]15\%\ of\ x=87\\\\x=\dfrac{87\times 100}{15}\\\\x=580[/tex]
Hence, three boys plant 580 seedlings altogether.
Edwin bought 3 cds and 7 dvd for $80 Jessica bought 6cds and 3 dvds for $63.75 which system of equation could be used to determine how much one cd and one dvd cost
Answer:
The system of equations 3x + 7y = 80 and 6x + 3y = 63.75 can be used to determine the cost of one CD and one DVD.
Step-by-step explanation:
Given that:
Cost of 3 CDs and 7 DVDs = $80
Cost of 6 CDs and 3 DVDs = $63.75
Let,
x be the cost of one CD
y be the cost of one DVD
According to given statement;
3x + 7y = 80
6x + 3y = 63.75
Hence,
The system of equations 3x + 7y = 80 and 6x + 3y = 63.75 can be used to determine the cost of one CD and one DVD.
are there any maths genius here can help?
Answer:
1 》let equal side be X and other side y
now, length of y= 2x sin teta/2
=12.3×sin42/2
=12.3 × sin21
=4.407
What’s the connection between input and output in this question
ITS MUltipling by 3 silly its 243
Answer:
243,y = 3^xStep-by-step explanation:
We can observe that:
3^1 = 33^2 = 93^3 = 273^4 = 813^5 = 243The rule is:
y = 3^xA cone with the same base but a height 3 times taller than the given cylinder exists. What is the volume of each figure? Express your answers in terms of pi.
Volume of the cylinder =
Volume of the cone =
Pls i need help
Answer:
Step-by-step explanation:
131.95
The volume of cylinder and cone are [tex]36\pi[/tex] cubic unit.
Volume of cylinder :It is given by formula, [tex]V=\pi r^{2}h[/tex]
Where r is base radius and h is height of cylinder.
Given that, [tex]r=3,h=4[/tex]
Substitute values in above formula,
[tex]V=\pi*3^{2} *4=36\pi[/tex]
Volume of the cone is,
[tex]V=\frac{1}{3} \pi r^{2}h[/tex]
Given that, [tex]r=3,h=3*4=12[/tex]
Substitute values in above formula.
[tex]V=\frac{1}{3}\pi*3^{2}*12=36\pi[/tex]
Learn more about the volume of cylinder here:
https://brainly.com/question/9554871
Round the numbers to the nearest 1000
4682
123361
56500
Answer:
a) 5000
b) 123000
c) 57000
Can someone please help me
9514 1404 393
Answer:
41.7 nautical miles
Step-by-step explanation:
It can help to draw yourself a diagram. It will show you the desired distance is the hypotenuse of a right triangle with side lengths 36 and 21. The Pythagorean theorem can be used to find the distance of interest.
d² = 36² +21²
d² = 1296 +441 = 1737
d = √1737 ≈ 41.6773
The ship is about 41.7 nautical miles from the starting point.
Deb's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 2 single-shot espressos and 6 double-shot espressos. What percentage of the espressos sold were single-shot?
Answer:
오늘하루도 트친해요수고하셨습니다 ㅊ풔ㅓㅎ나지금너무배고파죽겠는데난지금바로응모하세요!
What is the solution of this equation -4z+7=2y-3
Answer:
Form 1 question???????
ILL GIVE BRAINLIEST AND EVERYTHING ELSEEE HELP
Answer:
Its the second option
Step-by-step explanation:
The circumference is 25 pi What is the diameter?
Answer:
d=25
Step-by-step explanation:
d=C/Pi
d=25pi/pi
d=25
Answer:
Diameter = 25
Step-by-step explanation:
The circumference of a circle is 25 pi
Circumference of a circle is given by,
C = 2πr
25π = 2πr
Dividing both sides by 2π
[tex]\frac{25\pi}{2\pi}=\frac{2\pi r}{2\pi}\\\\12.5 = r\\[/tex]
Diameter = 2r
Diameter = 2(12.5)
Diameter = 25