Answer:
(-0.5,7.66)
Step-by-step explanation:
2x+6y=21
-2x+3y=24
so 3y=24+2x
reduce
y=(24+2x)/3
substitute for y
2x+6(24+2x/3)=21
2x+(72+12x)/3=21
2x+24+4x=21
6x=-3
x=-0.5
y=(24+-1)/3=7.66
Simplify: 12 + 9x
help
Answer:
21x
Step-by-step explanation:
Answer:
yea
Step-by-step explanation:
Brainliest for good answers.
Represent the equation: 2x + 3 = 11
Answer: x=4
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
2x+3=11
so take 3 and subtract it from 11
you'll get 8
then take 2x and divide it by 8
= 4
Brandon’s family is having pizza for dinner tonight. Before knowing he would have to share with the rest of his family, Brandon cut a piece for himself as shown by the diagram. Both of his parents, his sister, and his two brothers will now equally share the remaining pizza. What is the approximate area each one receives?
Answer:
plz can someone give me the asnwer
Step-by-step explanation:
plz
Evaluate the expression
Answer:
32
Step-by-step explanation:
4 to the third power is 64
(7-3) = 4
*2
64/4*2 = 32
Hope this helps
Las medidas de dispersión o variabilidad son las que: .___.
Answer:
SEn estadística, las medidas de dispersión (también llamadas variabilidad, dispersión o propagación) es el grado en que una distribución se estira o exprime. Ejemplos comunes de medidas de dispersión estadística son la varianza, la desviación estándar y el rango intercuartil.
What is the value of the expression below when n=5
Answer:
-6 (i can explain if its needed)
Step-by-step explanation:
[tex]2 - {n}^{2} + 3 \times 14 - {n}^{2} = \\ 2 - {n}^{2} + 42 - {n}^{2} = \\ 2 - 25 + 42 - 25 = - 6[/tex]
A 6-POUND BAG OF CANDY COSTS $11.28 WHAT IS THE COST PER POUND? 10
Answer:
$1.88
Step-by-step explanation:
11.28 / 6 = 1.88
Answer: $1.88
Step-by-step explanation:
We have 6 pounds of candy that cost 11.28, and we need to find the unit rate.
If we want to find the unit rate, or the cost per pound, we can use the equation 11.28 ÷ 6.
We can then divide each side by 6, or solve the equation.
11.28 ÷ 6 = 1.88.
Therefore, the each pound of candy costs $1.88.
A country's budget had a surplus of $250 billion in the year 2000. in 2004 , the budget had $447 billion. fund the difference between these amounts
Answer: $197 Billion
Step-by-step explanation: To find the difference between the two amounts, you simply subtract them! In this case, 447 - 250 = 197. Hope this helps!
graph What is the missing number in the table? graph
When x = 4, the value of y that is missing is 16.
When x equals 6, the value of y is 24.
The graph shows a linear connection.
Given is a table of values of x and y,
x = 1, 2, 3, 4, 5
y = 4, 8, 12, ?, 20
We need to find the missing value of y corresponding to x = 4, the nature of the graph and the value of y when x = 6.
To find the missing value of y corresponding to x = 4, we can observe the pattern in the given values.
From the given values, we can see that the relationship between x and y is a linear one, where the value of y increases by 4 for each unit increase in x.
To find the missing value of y when x = 4, we can use this linear relationship.
Since y increases by 4 for each unit increase in x, we can calculate:
y = 4 + (4 × (x - 1))
Substituting x = 4 into the equation:
y = 4 + (4 × (4 - 1))
y = 4 + (4 × 3)
y = 4 + 12
y = 16
So, the missing value of y corresponding to x = 4 is 16.
Now, to find the value of y when x = 6, we can use the same linear relationship:
y = 4 + (4 × (x - 1))
Substituting x = 6 into the equation:
y = 4 + (4 × (6 - 1))
y = 4 + (4 × 5)
y = 4 + 20
y = 24
Therefore, when x = 6, the value of y is 24.
In summary:
The missing value of y when x = 4 is 16.
The value of y when x = 6 is 24.
The nature of the graph is a linear relationship.
Learn more about linear relationship click;
https://brainly.com/question/29066440
#SPJ4
Complete question is attached.
8.
10 points
A telephone pole casts a shadow 8 ft long when the sun's rays strike the
ground at an angle of 50°.
Approximately, how tall is the pole?
A. 5.14 ft
B. 6.13 ft
C. 6.71 ft
D. 9.53 ft
А
B
The original price of a scarf was $25. During a store-closing sale, a shopper saved $15 on the scarf. 1. What percentage discount did she receive? Type the answer in the box below. She received a % discount.
Answer:
there was a 60 percent discount on the scarf
Answer:
60%
Step-by-step explanation:
How I did it is I put 15 over 25 and multiplied it by x over 100.
It should look like this
15/25 x x/100
which 15 multiplied by 100 is 1500 and then 1500 divided by 25 is 60
Does this help?
Solve: 6/11n−3/11n=−4+23/11
PLZ HELP
Select all that apply.
The slope of the graph of a direct variation function is -3. Which of the following is true?
The point (2, -6) is on the graph of the function.
The equation is y = -3 x.
The function is linear.
The equation of the function is y = - x.
A plane travels 1820 meters at a speed of 260 m/sec. How long did it
take to reach its destination? PLEASE HELP!
Answer:
7 seconds
Step-by-step explanation:
1820/260=7.
Answer:
7m/sec
Step-by-step explanation:
PLEASE HELP ME MATCH!
Answer:
Step-by-step explanation:
I hope it helps you ,
Your answer is in image format,
Guys, PLEASE HELP! These are my last points. PLEASE EXPLAIN AS WELL! WORTH 25 POINTS!
Answer:
the slope is 2
Step-by-step explanation:
3≤7+g
Do not understand, anything will help, thanks!
Molly, page and demi share 42 sweets in the ratio 3:2:1 how many sweets do the all get each
Answer:
Molly: 21
Page: 14
Demi: 7
Step-by-step explanation:
Hope this helps! ;)
need help with geometry
Answer: 55 degrees
Step-by-step explanation:
so we only need to focus on the triangle with m<1 we know that it is a right triangle so there's already 90 degrees.
if we do 180 - 145 that gives us another angle measurement which is 35
now to find angle 1 we need to add 90 + 35 = 125
since there's 180 degrees in a triangle we do 180 - 125 and that gives us 55 which is the missing angle
Chris uses an online store that sells songs for $1 and movies for $6. He used all of
his $20 allowance to buy 10 items. How many songs and how many movies did he
buy?*
Your answer
Answer:
8 songs and 2 movies
Step-by-step explanation:
THis is because 1x8=8 and then 2x6=12 . Then 12+8=20 and he spent $20.
Step-by-step explanation:
Which expression is another way to write 100,000?
Answer:
100X1000
Step-by-step explanation:
write an equation of the given line that passes through the given point and has the given slope m
(5,1);m=2
Answer:
y = 2x - 9Step-by-step explanation:
Line has a formula:
y = mx + bWith m = 2 it is:
y = 2x + bSubstitute x and y from the point (5, 1) and solve for b:
1 = 2(5) + bb = 1 - 10b = - 9The line is:
y = 2x - 9Answer:
I hope I can help you
Step-by-step explanation:
salamat po
Find the sum 7/10 + 20/100 as a fraction
Answer:
9/10
Step-by-step explanation:
=
7
10
+
20
100
=
7
10
+
1
5
=
7
10
+
2
10
=
7+2
10
=
9
10
(Decimal: 0.9)
Answer:
[tex]\frac{9}{10}[/tex]
Step-by-step explanation:
[tex]\frac{20}{100} = \frac{2}{10}[/tex]
[tex]\frac{7}{10} + \frac{2}{10} = \frac{9}{10}[/tex]
The length of a boat is 10.8 metres. Boris buys a scale model of the boat. The scale of the model is 1/18 Work out the length of the scale model of the boat. Give answer in centimetres
Answer: 60 cm
Step-by-step explanation:
The actual length of the boat is 10.8 meters.
The scale model length is 1/18 of the actual boat.
Length of scale model will therefore be:
= 10.8 * 1/18
= 0.6 meters
A meter is 100 centimeters.
= 0.6 * 100
= 60 cm
Which two simple machines are being used in the diagram
Answer:
2
Step-by-step explanation:
Inclined plane ; wheel and axle.
can smby help me plz ?!
Answer:
D. y=-2x-2
Step-by-step explanation:
To find a line perpendicular to another line take the negitive inverse which is fliping the fraction and multiplying it by -1. To see if it crosses a point just plug in for that point.
In a factory, 4 out of every 200 jars are broken. If a factory produces 1,600 jars, how many jars are likely to be broken?
Answer:
32
Step-by-step explanation:
Sophie found the volume of the figure below by using the steps shown.
A rectangular prism with a length of 28 millimeters, width of 21 millimeters, and height of 4 millimeters. A rectangular pyramid with a base of 28 millimeters by 21 millimeters and height of 26 millimeters.
Total Volume = B h + one-third B h = 4 (21) (28) + one-third (21) (28) (30) = 2,352 + 5,880 = 8,232 cubic millimeters.
What mistake, if any, did Sophie make?
Sophie determined the volume correctly.
Sophie used the wrong formula for the total volume.
Sophie used the wrong height for the pyramid.
Sophie did not apply the order of operatio
Answer:
(C) Sophie used the wrong height for the pyramid.
Step-by-step explanation:
she should have subtracted 4 from 30 because that was apart of the prism
The total volume is 7448 cubic millimeters. Sophie has made mistake in copying height of pyramid.
What is the volume?Volume is the measure of the capacity that an object holds.
Formula to find the volume of the object is Volume = Area of a base × Height.
Given that, a rectangular prism with a length of 28 millimeters, width of 21 millimeters, and height of 4 millimeters.
Volume of rectangular prism = Length×Width×Height
= 28×21×4
= 2352 cubic millimeters
A rectangular pyramid with a base of 28 millimeters by 21 millimeters and height of 26 millimeters.
Volume of a rectangular pyramid = (lwh)/3
= (28×21×26)/3
= 15288/3
= 5096 cubic millimeters
Total volume = 2352+5096
= 7448 cubic millimeters
Hence, Sophie has made mistake in copying height of pyramid.
To learn more about the volume visit:
https://brainly.com/question/13338592.
#SPJ3
There are 23 students in ms day”s class. Only 17 students are present today use the model to find A the number of students that are absent
Answer:
6 students are absent.