Answer:
-0.5 is not a solution
2 is a solution
Step-by-step explanation:
To check if something is a solution of the equation, you need to substitute the value in place of the variable
15 + 2y = -12 - 4y
15 + 2(-0.5) = -12 - 4(-0.5)
15 - 1 = -12 + 2
14 ≠ -10 ∴ -0.5 is not a solution
5 - 2(3x + 5) = 3 - 10x
5 - 2[3(2) + 5] = 3 - 10(2)
5 - 2(6 + 5) = 3 - 10(2)
5 - 12 - 10 = 3 - 120
-17 = -17 ∴ 2 is a solution
What is 1/8 of 3? When i look it up it says to many different answers.
Answer:
3÷8=0.375
Step-by-step explanation:
1/8 of a number can be found by dividing the number by 8.
Answer:
0.375
Step-by-step explanation:
If you divide 3 into 8 diffrent pieces you get 0.375 and to prove it 0.375 x 8 = 3.
Ana writes test to upgrade her level. The test has 25 question for a total score of 150 points. Among the 25 questions, each multiple-choice questions carries 3 points and the descriptive type questions carries 8 points. How many multiple-choice question and descriptive types question are there in the test?
(I need answer with solution)
Answer:
10 multiple choice
15 descriptive
Step-by-step explanation:
Trial and error
PLS HELP ASAP TY ILL GOVE BRAINLIEST
please help im confused
Hi there!
We are given two exterior angles. Don't panic! We know that exterior angles form a linear pair, which means they add up to 180 degrees.
180-130=50
180-96=84
Now that we have those angles, how can we work out the value of x?
Turns out that all the angles in any triangle add up to 180 degrees.
So
180-84-50=46 degrees.
So the value of x is 46 degrees.
Now let's work out the value of x in the next problem.
180-126=54
180-54-43=83 degrees
So the value of x in this problem is 83 degrees.
Let's move on to the third problem.
At first, it seems like we do not have enough information.
If we know that the right angle is 90 degrees (it is shown by a little square), then we have enough information.
180-90-43=47 degrees
So the value of x is 47 degrees.
Hope this helps you!
~Just an emotional teen who listens to her favorite song "Try Everything"
[tex]SilentNature[/tex]
mutltply 2/3 by 42 and then mutltply that product by 10
Answer:
280
Step-by-step explanation:
2/3 * 42 = 28
28 * 10 = 280
Answer: 140 is the answer
Step-by-step explanation:
Which of the following does not represent a function?
Answer:
D or last oneStep-by-step explanation:
Verify the graphs by the vertical line test.
If a vertical line crosses the graph at two or more points, then it is not a function.
We can see the first 3 graphs pass the test but the last one fails.
So the last graph (bottom right picture) doesn't represent a function.
*
-12 -10 8 6 4 2 0 2 4 6 8 10 12
Which division problem is modeled on the number line?
012-3
-12 - 3
0-12 =-4
124
the correct answer is b :)
In which situation would you most likely round numbers? (A) When you need to measure a precise amount of butter for cake recipe
(B) When you need to find out exactly how many guests are coming to your birthday party
(C) when you need to figure out about how much of a Carton of milk a box of cookies will cost together
(D) when you need to count the number of birthday cards and gifts you receive to be sure you didn’t lose any
Answer:
C
Step-by-step explanation:
its the only one that doesnt say precise or exactly or sure
Answer: C
Step-by-step explanation: when you need to figure out about how much of a Carton of milk a box of cookies will cost together. (You see it says "about" which means get it near the exact point. As for the others it uses words like "precise, exactly, etc".
(x-5)^2-1=0
tìm x giúp mik vs
HELP PLEASE!!!! I REALLY NEED HELP
Answer:
CDW stocks a broad selection of office furniture, supplies, and accessories from computer stands to cleaning wipes, paper shredders and monitor stands.
Step-by-step explanation:
T.
G
1.6 cm
6 cm
6 cm
-
Find volume
Answer:
57.6......
Step-by-step explanation:
v=lxbxh...........
Guys please help w 3,6,9,12,15&14 PLEASE (7thgardemath)
Answer:
3) 7x + 4
6) 4 + 5x
9) 8y
12) 4y
14) 23 + 4x
15) 8x + 14
Step-by-step explanation:
Someone pls help me I will make you brain
Answer: -75
Step-by-step explanation:Because basically the slope is how much money is going down in the loan so 850 minus 75 is 775 so -75 is the answer
mind helping me ? plz
Answer:
This is a right triangle since it has an angle of 90 degrees
a triangles add up to 180 degrees, so all you have to do is find the missing number like this
30+8=38
180-38=142 degrees
Step-by-step explanation:
A tree company charges a delivery fee for each tree purchased in addition to the cost of the tree. The delivery fee decreases as the number of trees purchased increases. The table below represents the total cost of x trees purchased, including delivery fees.
Which best describes why the function is nonlinear?
The rate of change between 1 and 2 trees is different than the rate of change between 2 and 3 trees.
The rate of change between 1 and 2 trees is different than the rate of change between 1 and 3 trees.
The rate of change between 2 and 3 trees is different than the rate of change between 3 and 4 trees.
The rate of change between 2 and 3 trees is different than the rate of change between 3 and 5 trees.
Answer:
C
Step-by-step explanation:
I think
Answer:
Step-by-step explanation:
d) The rate of change between 2 and 3 trees is different than the rate of change between 3 and 5 trees.
Number of tree purchased Total Cost ($)
1 60
2 120
3 180
4 240
5 290
For the linear function rate of change is constant.
Now, between 2 and 3 trees rate of change is given by
Now, between 3 and 5 trees rate of change is given by
This is clearly that the rate of change isn't constant. Therefore, the function is non-linear.
so,
d) The rate of change between 2 and 3 trees is different than the rate of change between 3 and 5 trees.
Learn more about linear function here
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Find the slope of the line containing the points (-2,-1) and (3,4).
Answer:
Step-by-step explanation:
[tex]\frac{4-(-1)}{3-(-2)}[/tex] =[tex]\frac{5}{5}[/tex]= 1
On a coordinate plane, 2 rectangles are shown. Rectangle P Q R S has points (negative 3, negative 5), (negative 2, negative 5), (negative 2, negative 1), (negative 3, negative 1). Rectangle P double-prime Q double-prime R double-prime S double-prime has points (negative 5, 5), (negative 5, 4), (negative 1, 4), (negative 1, 5).Which rule describes the composition of transformations that maps rectangle PQRS to P''Q''R''S''?R0,270° ∘ T0,2(x, y)R0,180° ∘ T2,0 (x, y)T0,2 ∘ R0,270°(x, y)R0,2 ∘ T0,180°(x, y)
Answer:
T0,2 ∘ R0,270°(x, y)
Step-by-step explanation:
Answer:
c or T0,2 ∘ R0,270°(x, y)
Step-by-step explanation:
edge 2021
On a map, 1 inch equals 15 miles. Two cities are 7 inches apart on the map. What is the actual
distance between the cities?
The actual distance between the cities is miles.
Answer:
105 miles
Step-by-step explanation:
The ratio you have is 1:15
So you must multiply 7 by 15 to find the actual distance in miles.
7*15=105
5/8x2/3 ........................
Answer:
The answer is 5/12. I hope this helps you! :)
Avery and Carmen both have summer jobs. Avery gets paid $360 every 4 weeks. Carmen gets paid $480 every 6 weeks. summer break lasts a total of 12 weeks. who will earn more money during summer break?
Answer:
Avery
Step-by-step explanation:
12/4=3 so Avery will be paid 3 times
360×3= $1080
12/6=2 Carmen will be paid twice
480×2=$960
Avery earns more
Eight students in a small class made the test scores shown in the table. What was the mean absolute deviation for the class?
student Score
James- m
Lou- 2m
Rob- 3m
teri- 4m
shawn- 4m
Skip- 3m
art- 2m
Jim- m
Answer:
-5m/2
Step-by-step explanation:
-m+ (-2m) +(-3m)+(-4m) +(-4m)+(-3m)+(-2m)+(-m)/8
-m-2m-3m-4m-4m-3m-2m-m/8
-20m/8
-5m/2
What will be the coordinates of the point A(7, -2) after a reflection across the y axis? *
Answer:
I believe it should be (-7,-2)
Step-by-step explanation:
what is 1>x346+X=123=
Answer:
1>x^346+X=123
Answer all questions I'll give 50 pts.
Answer:
14. 6 × 10^7
15. 6 × 10^14
16. 7.2 × 10^-7
17. 8.5 × 10^-2
18. 23 × 10^5, 6.9 × 10^6, 72 × 10^5
19. 1.89 × 10^-4, 2.5 × 10^-4, 19 × 10^-3
20. 3.125 × 10^-5
21. 3.1536 × 10^9
Step-by-step explanation:
14.
(2 × 10^5)(3 × 10^2)(200000)(3 × 10^2)(200000)(300)600000006 × 10^715.
(1.5 × 10^5)(4 × 10^9)(150000)(4 × 10^9)(150000)(4000000000)6e + 146 × 10^1416.
(6 × 10^-4)(1.2 × 10^-3)(0.0006)(1.2 × 10^-3)(0.0006)(0.0012)7.2e-77.2 × 10^-717.
(5 × 10^3)(1.7 × 10^-5)(5000)(1.7 × 10^-5)(5000)(0.000017)0.0858.5 × 10^-218.
72 × 10^5 = 72000006.9 × 10^6 = 690000023 × 10^5 = 2300000 23 × 10^5, 6.9 × 10^6, 72 × 10^519.
19 × 10^-3 = 0.0192.5 × 10^-4 = 0.000251.89 × 10^-4 = 0.000189 1.89 × 10^-4, 2.5 × 10^-4, 19 × 10^-3what is the sum of the interior angles of an equilateral triangle?
Answer:
180°is the sum of the interior angles of an equilateral triangle
Math question.
I’ll give brainliest, thanks and 5 stars to the correct answer that has been explained properly.
Answer:
C) 25%
Step-by-step explanation:
let salt be 's'
let water be 'w'
[tex]\frac{s+1}{w+s+1} = 33\frac{1}{3} \\\\\frac{s+1}{w+s+1} = \frac{1}{3} \\\\\frac{w + s + 1}{3} = s+1\\\\3s +3 = w+s+1\\w = 2s+2\\\\\frac{s+1}{w+1+s+1} = \frac{3}{10} \\\\\frac{3(w+s+2)}{10} = s+1\\\\3w+3s+6 = 10s+10\\**w = 2s+2\\3(2s+2) + 3s + 6 = 10s+10\\\\6s+6+3s+6 = 10s+10\\9s+12 = 10s+10\\-s = -2\\s = 2\\\\w= 2s+2\\w=2*2+2\\w = 6\\\\\frac{2}{2+6} = \frac{2}{8} = 0.25[/tex]
0.25 = 25%
Which sets are NOT closed under subtraction? Choose all that apply.
-Odd numbers
-Integers
-Prime numbers
-Natural numbers
-Irrational numbers
-Even numbers
I need help with volume by water displacement
Just subtract the original number from the new number, then you get the volume of the object that was put in the liquid!
new - original = volume of object
Find all numbers whose absolute value is 5.
If there is more than one, separate them with commas.
If there are no such numbers, click on "None".
Answer:
5 , |-5|
Step-by-step explanation:
2 of the above are the absolute value of 5
The two numbers whose absolute value is 5 are 5 and -5.
Numbers whose absolute value is 5 can be both positive and negative.
The absolute value of a number is its distance from zero on the number line, so any number that is 5 units away from zero in either the positive or negative direction will have an absolute value of 5.
Here are the numbers whose absolute value is 5:
5 (positive 5, because it's 5 units to the right of zero)
-5 (negative 5, because it's 5 units to the left of zero)
Hence, 5 and -5 are the two numbers whose absolute value is 5.
To learn more on Number system click:
https://brainly.com/question/1763119
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Explain why the measure of angle a is equal to 45∘ and the measure of angle c is equal to 70∘ .
Answer:
because of 180
Step-by-step explanation: