Answer:
-0.5
Step-by-step explanation:
PLEASE HURRY!
Determine whether each pair of expressions are equivalent.
-1/5 (10t - 15) and -2t + 3 Yes / No
0.3x (4 - y) and -1.2x - 0.3y Yes / No
2j + 8k - 4k and 8 (1/4j + 1/2k) Yes / No
x - 20 - x and 5 (4 - 1/5x) Yes / No
Answer:
-1/5 (10t - 15) and -2t + 32j + 8k - 4k and 8 (1/4j + 1/2k)Step-by-step explanation:
-1/5 (10t - 15) and -2t + 3
-2t + 3 and -2t + 3 Yes / No
0.3x (4 - y) and -1.2x - 0.3y
1.2x - 0.3xy and -1.2x - 0.3y Yes / No
2j + 8k - 4k and 8 (1/4j + 1/2k)
2j + 8k - 4k and 2j + 4k
2j + 4k and 2j + 4k Yes / No
x - 20 - x and 5 (4 - 1/5x)
x - 20 - x and 20 - 1x
-20 and 20 - x Yes / No
Hope this helps!
The solution shown for the equation is incorrect. What is the correct solution? What is the error?
(Check image below for the equation)
What is the error?
A. The right side of the equation should be -4 after subtracting -24 from each side.
B. The left side of the equation should be - b after dividing each side by -4.
C. The left side of the equation should be b after distributing.
D. The right side of the equation should be 7 after dividing each side by -4.
Answer:
B = 7
Step-by-step explanation:
All the answers you listed are wrong. It should be D but the reasoning is wrong. When you distribute the -4 to the expression in the parenthesis you end up with -23 + 4b as a negative times a negative equals a positive. Therefore that's where the error initially lies.
A gold ore produces about 5 g of gold for every 1,000 kg of ore that is mined. If one ounce = 28.3 g, how many kg of ore must be mined to produce an ounce of gold?
Answer:
5,660 kg of ore is needed
Step-by-step explanation:
first find how much one gram of gold needs (how much ore) which is 200 kg of ore. Multiply that number 28.3. Because we are finding how much kg, we don't need to convert the answer to grams.
I need help with this question. please help me. Here it is ..
Answer:
B <KAY
Step-by-step explanation:
Give a set of 5 items of data that has a mode and median of 54 and a mean of 57.
Please help!! I would really appreciate it.
Answer:
Hello! There are a variety of answers, see below :)
Step-by-step explanation:
We need five data items. The middle one needs to be 54, and the average needs to be 57. There also needs to be more than one 54 because that is also the mode.
A B 54 C D
Okay, so first multiply 57 by 5, because we need to find the total sum using the average. 57 * 5 = 285
That means that our five numbers need to equal 285 as well so they can have the same average.
53, 54, 54, 61, 63 is one way
50, 52, 54, 54, 75 another ect
We just take the average times the number total, subtract the numbers we already know (54 and 54) and then find three other numbers that also equal 285.
HELP ME ASAP AND I WILL GIVE 5.0 RATING AND BRAINLIEST.
/ means divide
* means multiply
9.
you have to do parenthesis first
2 * 11 = 22
3 * 10 = 30
2 * 9 = 18
10.
12 + 2 = 14
18 + 3 = 21
24 + 4 = 28
11.
4/1 = 4
36/2 = 18
64/4 = 16
Answer:
Step-by-step explanation:
9. 2(13-p)
a. p=2
2(13-2)
=22
b. p=3
2(13-3)
=20
c. p=4
2(13-4)
=18
10. 3v+w
a. v=4, w=2
3(4)+2
=14
b. v=6, w=3
3(6)+3
=21
c. v=8, w=4
3(8)+4
28
11. x²÷y
a. x=2, y=1
2²÷1
=4
b. x=6, y=2
6²÷2
=18
c. x=8, y=4
8²÷4
=16
hope this helps
pls brainliest!!!!!
Help me pls!!
Determine the transformation that happened from JKLM to J'K'L'M.
A. Rotation
B. Reflection
C. Translation
D. Dilation
Answer:
A. Rotation
Step-by-step explanation:
I'm not sure
The triangle inequality theorem states that the sum of the lengths of any two sides of a triangle is greater than the length of the third side. The lengths of two sides of a triangle are 17 ft and 22 ft. Find the possible lengths of the third side.
Answer:
Any c answer that fits 5 <c<37 is correct.
Step-by-step explanation:
Say the three sides of the triangle are
a
,
b
and
c
. Here,
a
=
16
and
b
=
21
. We must find the possible values of
c
.
Since
a
+
c
>
b
, we can input:
16
+
c
>
21
c
>
5
.
So the lower bound of
c
is everything above
5
.
We also know that
a
+
b
>
c
. Inputting:
16
+
21
>
c
37
>
c
.
So
c
must be less than, but not including
37
.
In conclusion, the side length
c
must satisfy the following inequality:
Answer:
The answer C
Step-by-step explanation:
Please help me and if you answer correctly and fast I will give you brainliest!!
Answer: C, It is the same shape and size as the figure.
Step-by-step explanation: The size and shape do not change when you rotate it, it only moves the shape to a different location, no dilation occurs.
[tex] \qquad \quad\huge \bf༆ Answer ༄[/tex]
The Correct choice is ' C '
It's the same shape and size as the figure, rotation about origin doesn't cause change in shape or size. it just displaces the coordinates of different points of that figure.
Skis at a sport store near Snow Summit are on sale for $476. If the original price was $560, what discount rate does this represent?
Answer:
116 discount
Step-by-step explanation:
its a 116 discount rate .
What is A? Please help Mehhhhhhhh
Answer:
It would be an improper fraction a = [tex]\frac{4}{3}[/tex]
Step-by-step explanation:
An improper fraction is when a fraction in which the numerator is greater than the denominator.
Answer:
[tex] - \frac{1}{2} = - \frac{5}{6} + \frac{1}{4} a \\ \\ \frac{1}{4} a = - \frac{1}{2} + \frac{5}{6} \\ \\ \frac{1}{4} a = - \frac{3}{6} + \frac{5}{6} \\ \\ \frac{1}{4} a = \frac{2}{6} \\ \\ \frac{1}{4} a = \frac{1}{3} \\ \\ a = \frac{4}{3} = 1.33[/tex]
hhhelppp plsss-------
Answer:
3x+1 is y2
Step-by-step explanation:
Choose the correct fraction and decimal equivalent for 78%.
To solve this correctly you will need to remember how to estimate percents using decimals and fractions.
39/50
7.8/100
78.0
0.78
Answer: 0.78 and 39/50
Explanation:What we know:
We need to find 78% as a fraction and decimalHow to solve:
The decimal is easy enough, and then the fraction can be found from there. D will represent decimal, p will represent percentage, and F will represent fraction.
Process:Decimal
Set up equation D = p / 100
Substitute D = 78% / 100
Simplify D = 0.78%
Remove % sign D = 0.78
Fraction
Set up equation F = p / 100
Substitute F = 78% / 100
Remove % sign F = 78 / 100
Simplify if needed F = /2 /2
F = 39 / 50
Solution: 0.78 and 39/50
Check:
Multiply the decimal by 100 to check the decimal
0.78 x 100 = 78; 78%
Divide the fraction to check the fraction
39/50 = 0.78; see above
Sport’s Life magazine has seen a decrease in sales since 2005. The amount of sales in 2005 reached $120,000. In 2009, the sales fell to $103,800. What is the percent decrease in sales for Sport’s Life?
Answer:
The percent decrease is 13.5%
Step-by-step explanation:
120,000 - 103,800 = 16,200
16,200/120,000 = 0.135
0.135 x 100 = 13.5
Answer 13.5%
Have a wonderful day!
Help me and if you answer correctly and fast I will give you brainliest!!
Answer:
C: (x, y) ---> (-y, x)
Step-by-step explanation:
The mapping rule is for rotation of 270 degrees clockwise is as follows.
There are 360 degrees in one revolution.The general rule for rotation of an object 90 degrees is (x, y) ---> (-y, x).270 degrees clockwise rotation is the same as 90 degrees anticlockwise rotation (x, y) ---> (-y, x)The initial figure is always called the pre-image (90 degrees), while the rotated figure will be called the image (270 degrees).Consider the attached figure for reference purpose.Keep your promise ;D
Michael saved $5.70 in his piggy bank. He gave his brother $3.15 to buy a new comic book. How much money does Michael have left?
$2.15
$2.55
$3.15
$3.55
Answer:
2.55$
Step-by-step explanation:
5.7-3.15 is 2.55$
help me find the things needed in the picture pls i’ll mark u brainlist or wtv its called
If you start at zero and move 2 units to the right and then move 4 units up, what would be the ordered pair? _________
If you start at zero and move 3 units to the left and then move 6 units down, what would be the ordered pair? _________
If you start at zero and move 5 units to the left and then move 2 units down, what would be the ordered pair? _________
If you start at zero and move 8 units to the right and then move 8 units up, what would be the ordered pair? _________
Answer the following questions.
The point for the ordered pair (3, -4) can be located in which quadrant?
The point for the ordered pair (-6, 6) can be located in which quadrant?
Answer:
The coordinate plane can be used to plot points and graph lines. ... An ordered pair tells you the location of a point by relating the point's location along the ... point, start at the origin (0, 0) and move right along the x-axis until you are under the point. ... The 3 indicates that, after leaving the x-axis, you traveled 3 units up in the ...
Step-by-step explanation:
The sum of nine and six-tenths and a number is thirteen and two-tenths. What is the number?
A 1.375
B 3.6
C 22.8
D 126.72
Answer:
B
Step-by-step explanation:
132/10-96/10=18/5 or 3.6
Answer:
B
Step-by-step explanation:
Determine whether the equation below has a one solutions, no solutions, or an infinite number of solutions. Afterwards, determine two values of x that support your conclusion.
28
__ = 0
x
Answer:
No solutions.
Step-by-step explanation:
No quotient can ever be equal to 0, as the closest you can get is -1 or 1.
As for the second part -- "afterwards, determine two values of x that support your conclusion." -- I'd assume that's more for if X has an infinite number of solutions, but I suppose if you needed to show those two values still, you could also just show two values failing to be equal to 0 in this scenario. (e.g 28/1 = 28, etc.)
Find the area of the composite figure or the shaded region. Round to the hundredth place if necessary. Use 3.14 as an estimate for Pi. Will mark brainliest
Answer:
396 mm
Step-by-step explanation:
Lets start off by writing what we know:
We know that a single line mark means 11 mm
We know that a double line mark means 15 mm
We know that a triple line mark means 9 mm
We are going to cut the shape into three rectangular sections (shown in the image)
We are going to solve for the area for each of those rectangles
15 * 11 = 165
6 * 11 = 66
15 * 11 = 165
165+165+66 = 396 mm
Why is division by zero not allowed? Explain using your knowledge of how division is related to subtraction.
Answer:
The reason division by zero is not allowed is that anything times 0 is 0.
HELP THIS IS DUE IN 4MIN
Answer:
IM LATE SORRY ASDFGHJLASDFBUNXMAI
Step-by-step explanation:
Grass = 24 square meters
Sand = 6 square meters
Total Rectangle = 32 square meters
i`m not sure which measurement it`s asking for so theres all three, sorry ;-;
also i love your karl pfp <3
These angles are _ _ _ _ _ _ _ _ _ (9 letters)
These angles are Congruent
Answer:
congruent
Step-by-step explanation:
that means, if placed with the same orientation on top of each other, they would completely cover each other up both ways.
Can someone explain how to find the length of triangles? I watched some videos and looked things up but none make sense. (with numbers so basically 12 cm, 13 cm, 24 cm. That kind of thing)
Check the picture below, there are two cases, case of option B and case of option C for Lorelei, we are looking at only the two smaller sides.
on option B
we have sides of 12 and 13, now, if we move the sides closer and closer to be one on top of the other, what is left is just one unit of slack, because the side of 12 laying right on top of the side of 13, is short by 1 unit to be 13, however if we do that, we no longer have a triangle, just two pancaked lines, so whatever the 3rd side may be, it must be greater than 1 unit.
now, if we instead move the sides away from each other, to the extent that sides 12 and 13 make a flat line, well, a flat line will be as long as 12 + 13 = 25, however, we can't do that becuause, again if we do so, all we have is a flat-line, and no longer a triangle, so, whatever the 3rd side may be, it must be less than 25 units.
well, on option B, we have a 3rd side given as 25, but we can't use that, because we'd be losing our triangle, we'd only be left with a flat line, so no dice on B.
on option C
as you see in the picture, same thing, pancake one side on top of the other and there's no slack, so the 3rd side must be greater than 0.
now move the sides away from each other and their sum gives 10 + 10 = 20, so the 3rd side must be less than 20.
we're given a 3rd side of 24, how the dickens are we going to get a side to be 24 when both sides of 10 extended only give 20? not going to happen, so no dice on C.
needeless to say the sides of 12, and 14 provide for a 3rd side of greater than 2 and less than 26, well, 24 is indeed within that range.
The solids are similar. Find the surface area $S$ of the red solid.
Two rectangular prisms are shown. The length of the blue rectangular prism is 4 meters. Its surface area is 40 meters squared. The length of the red rectangular prism is 6 meters.
S=___m²
Answer:
60 m²
Step-by-step explanation
first find how you get from 4m to 40 m². what ever you do to the 4m you do to the 6m
Sam is making a square pyramid out of cardboard. He drew a diagram of the square pyramid he is making as shown below. Based on Sam's diagram, how many square inches of cardboard make up his square pyramid?
9 square inches
20 square inches
24 square inches
28 square inches
Answer:
9 square
Step-by-step explanation:
Hope this helps
Answer:
24 square inches
Step-by-step explanation:
Required number of square inches of cardboard =
=area of central square+
4 x area of each triangle shape
=2 x 2 + 4 x { 1/2 x 2 x 5 }
= 4 + 4 x {5}
= 4 + 20
= 24 square inches
20 pts to whoever answers this:
At a grocery store, blueberries come packaged in 8-ounce containers for $2.80. At a farmer's market, blueberries cost $4.20 for 14 ounces. There are 16 ounces in one pound. Which statement accurately compares the cost of blueberries?
The polynomial (2x - 1)(x2 - 2) - x(x2 - x - 2) can be written in the form ax3 + bx2 + cx + d, where a, b, c, and d are constants.
Convert 45°C to Fahrenheit using the formula F = 9/5 C + 32.
Answer:
113 degrees Fahrenheit
Step-by-step explanation:
If you take 9/5 of 45, or 180%, you get 81.
Then it's just 81 + 32 = 113.
If you are allowed to use a calculator, a very easy way to do this is 9/5(45) + 32. Of course, replace the 45 with whatever Celsius temperature you've been given.