Step-by-step explanation:
Not because that not same number
does anyone know how to use substitution for
x+y=21
2x-15=y
Answer:
Step-by-step explanation:
Replace x
x=-y+21
2(-y+21)-15=y
Then solve the rest
Pls help i will mark brainliest if you get it correct シ♡︎
The correct answer is c.I hope this helps
Answer:
[tex]option \: c. \: is \: correct[/tex]
7. Which number is not a perfect square?
A. 81
C. 169
B. 125
D. 289
Answer:
B. 125
Step-by-step explanation:
square roots:
81 = 9
169 = 13
125 = 11.180..
289 = 17
factor 2x^2 - 7x = 0
Answer: x=3.500
Step-by-step explanation: product of several terms equals zero.
When a product of two or more terms equals zero, then at least one of the terms must be zero.
We shall now solve each term = 0 separately
In other words, we are going to solve as many equations as there are terms in the product
Any solution of term = 0 solves product = 0 as well.
2x-7 = 0
Add 7 to both sides of the equation :
2x = 7
Divide both sides of the equation by 2:
x = 7/2 = 3.500
2x-9x+17=-4
I have a answer but I’m not sure if I’m correct so I just want to double check.
Answer: x = 3
Step-by-step explanation: Simplify both sides
2x - 9x + 17 = -4
2x + - 9x + 17 = -4
Combine like terms
(2x + -9x) (17) = -4
-7x + 17 = -4
Subtract 17 from both sides
-7x + 17 - 17 = -4 - 17
-7x = -21
Divide both sides by -7
-7x/-7 = -21/-7
x = 3
Answer:
x=3
Step-by-step explanation:
subtract 2x and 9x ( 2x-9x= -7x)subtract 17 and -4 ( -4 -17= -21)divide -21 and -7 ( -21 / -7= -3)x=3Solve for x using the
distributive property.
7(x + 3) = -49
Answer:
x= -10
Step-by-step explanation:
distribute 7 to x and 3: 7x + 21 = -49
subtract 21 from both sides to isolate the variable: 7x= -70
divide both sides by 7 to find x: x= -10
Answer:
X = -10
Step-by-step explanation:
1.- 7x + 21 = -49
Subtract 21 on both sides of the equal sign
You should have:
2.- 7x = -70
Divide 7 on both sides of the equal sign
You should get the answer:
X = -10
3 Equivalent ratios for the following ratio: 3:4
Answer:
6:8
9:12
12:16
Step-by-step explanation:
Simplify the expression in part C, and explain what the number means with regard to the problem.
Answer: |55.75 – (-15.8)| = |55.75 + 15.8| = |71.55| = 71.55
Step-by-step explanation: The distance between two positions with longitudes A and B is given by ||A| - |B|| if the two positions are at the same side of the meridian (0 degrees longitude) and |A| + |B| if both positions are at different sides of the meridian.
Answer:
12.3 + 9.6 = 21.9
Step-by-step explanation:
The number 21.9 means that when she rode the Ferris wheel from the bottom to the top, Vivian's height rose by 21.9 feet.
Renting video games from Store S cost $2.50 per game plus a monthly fee of $5. Renting video games from Store T cost $5 per game with no monthly fee. The monthly cost to rent video games depends on the number of video games, v, rented. What inequality represents the situation when the monthly cost of Store S is less than the monthly cost at Store T?
Answer:2.5v+5>5v
Step-by-step explanation:this definitely right
order them from least to the greatest value.
Answer:
-0.89, 0.4, 1/2, 9/8, I-2I
Step-by-step explanation:
Answer:
1. -2
2. 0.4
3. 0.5/ 1/2
4. -0.89
5. 0.88/ 9/8
Step-by-step explanation:
3. A Fahrenheit thermometer reads 63°F. If the temperature increases 10°F, to the nearest degree, what is the new temperature C, in degrees Celsius?
Formula to convert F to C:
(F -32) x 5/9
F = 63 + 10 = 73
73-32 = 41
41 x 5/9 = 22.77777
Rounded to the nearest degree = 23 C
Answer: 63 +10 =73 then you have to round it right
it would be 70 degrees Celsius
Step-by-step explanation:
it would be rounded to 70 because 73 cant be round to 80 the 3 is ot higher than 5
A basketball team played five games. In those games, the team won by 7 points, lost by 3, won by 4, lost by 2, and won by 9. What was the mean difference in game scores over the five games?
Answer:
3
Step-by-step explanation:
7-3+4-2+9=15
15/5=3
The mean difference in the game scores over the five games is = 5
The points achieved by the various team players =
won by 7, lost by 3, won by 4,lost by 2,won by 9.To obtain the mean of the points achieved from the five
games the five scores are added together and divided by the number of games which is 5.
That is,
[tex] \frac{7 + 3 + 4 + 2 + 9}{5} [/tex]
[tex] \frac{25}{5} = 5[/tex]
Therefore the mean difference in game scores over the five games is = 5
Learn more here:
https://brainly.com/question/16794295
What is the value of x?
Answer:
30° is the value of X°.Explanation:2x+90°+x°=180
or, 2x+x=180-90
or, 3x= 90
or, x= 90/3
or, x= 30°
Therefore , the value of X is 30°.
It maybe helps you ☺️☺️Thank you ☺️☺️☺️
Answer:
x=30
Step-by-step explanation:
2x+90+x+90+90=360
Combine like terms
3x+270=360
Subtract 270 from both sides
3x=90
Divide both sides by 3
x=30
5 = 4a -7 please help me
Answer:3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
CLT
5+7= 4a
12=4a
Divide through by 4
12÷4= 3
What is shaded in here?
Answer:
4/100 is the fraction
Step-by-step explanation:
there are four blue blocks shaded out of the 100
what are the steps to solve m -5 - 6m 5
Answer:
m = -2
Step-by-step explanation:
m - 5 - 6m = 5
First, you need to combine like terms
-6m + m = -5m
-5m - 5 = 5
Next, add 5 to both sides of the equation
-5m - 5 = 5
+ 5 + 5
-5m = 10
Divide -5 by both sides of the equation
-5m = 10
÷-5 ÷-5
m = -2
I HAVE 5 MINS ANSWER THIS FOR (15 POINTS)
Answer:
d
Step-by-step explanation:
Answer:
Domain: 0,2,3
Range: -1,-3,-2
Step-by-step explanation:
PLEASE HELP! This is the only question I don’t get about functions.
Dana invited 35 people to a party. Bottled soda comes in packages of 6 bottles. How many packages must Dana buy to have enough soda for each guest to have 1 bottle?
The mass of an adult North Pacific right whale is about 70,000 kg, or 7 x 104
kg.
The mass of a male African elephant is about 7000 kg, or 7 x 103 kg.
About how many times more massive is the right whale than the African
elephant?
O A. 1.1 times
O B. 63,000 times
O C. 1x 10-7 times
O D. 1x 101 times
Answer:
d
Step-by-step explanation:
your mother told me the answer last night
3. Use >, < or = to solve the inequality below. 4/51/2
Answer:
2/51
Step-by-step explanation:
2.
Consider the following graph and rotate point P 90° counterclockwise
around two points: the origin and (-2,4). Sketch both points on the
graph.
Answer:
[tex]P: (-2,4)[/tex]
[tex]P' : (-4,-2)[/tex]
Step-by-step explanation:
Given
[tex]P: (-2,4)[/tex]
Required
Rotate 90 degrees counterclockwise
Show both points on graph
[tex]P: (-2,4)[/tex]
When a point is rotated counterclockwise by 90 degrees, the new point is:
[tex]P':(-y,x)[/tex]
In
[tex]P: (-2,4)[/tex]
[tex]x = -2[/tex]
[tex]y = 4[/tex]
Hence:
[tex]P':(-y,x)[/tex]
[tex]P' : (-4,-2)[/tex]
See attachment for graph
I don’t know what to put for number 4 and it’s due tomorrow!!
Answer:
I can't really help you since I don't have the passage but all I can say is to describe how he's using his facts to support his claims
Step-by-step explanation:
-1/2 + 4/5v=-5/3 solve for V
Answer:
v = -35/25 or -1 11/24
Step-by-step explanation:
First, isolate the variable. We should add 1/2 on both sides of the equation to get 4/5v = -7/6. Then we divide 4/5 on both sides to get v = -35/24!
hope this helped!! <3
What is the slope of a line perpendicular to the line whose equation is
2x+12y=−192. Fully reduce your answer.
The slope of a line would be -6 which is perpendicular to the line whose equation is 2x+12y=−192.
What is the slope of the line?The slope of a line is defined as the angle of the line. It is denoted by m
Slope m = (y₂ - y₁)/(x₂ -x₁ )
We have to determine the slope of a line perpendicular to the line whose equation 2x + 12y = −192.
First, we have to find the slope of the given line
The equation of the line which is given as
2x + 12y = −192
12y = −192 - 2x
Divided by 12 both sides of the above equation to get the slope-intercept form
y = - (1/6)x - 16
Here the slope of the line (m) = -1/6
So the slope of the line perpendicular to the line will be: 1/m = 1/(-1/6) = - 6.
Learn more about the Lines here:
brainly.com/question/14511992
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7.
6. Mr. Phuong stayed in a hotel room for 2
nights that cost $210. The hotel room tax
rate in the city is 12%. What is the total cost
for the hotel room? (Example 2)
Answer:
The total cost of the hotel room is $235.20
Step-by-step explanation:
Here, we want to find the total cost of the hotel room
Total cost of hotel room = Cost of hotel room for the two nights + tax
Tax = 12%
Total cost = 210 + 12% of 210
Total cost = 210 + (12/100 * 210)
Total cost = 210 + 25.2
Total cost = $235.2
What is the value of x?
Answer: 30
Step-by-step explanation:
Can anyone help me with this?
Answer:
They all have the same degrees
Step-by-step explanation:
PLS!!! HELP ME I WILL MARK U!!!
Answer:
Step-by-step explanation:
23.37
Answer:
-32.27
Step-by-step explanation:
[tex]n^{2}p +p[/tex]
First you have to substitute the values. (n = -1.9 and p = -7).
Substituting it would get to [tex](-1.9)^{2}(-7) + (-7)[/tex].
First you solve the exponent which would get it to [tex](3.61)(-7) + (-7)[/tex].
Then you would multiply to get it to -25.27 - 7.
That gets to -32.27.
Hope this helped! If not, please let me know! <3
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Answer:
:) /
Step-by-step explanation:,,
Answer:
The answer is B:subtract 1,add x,divide by 4
The other answer is D:add x,subtract 1,divide 4
Step-by-step explanation:
when you subtract 1 you isolate 3x so the equation looks like 3x=-x+3
the next step is to add x to both sides so you isolate the x to one side after doing that your equation should look like 4x=3,after this you divide both sides to the solution x=[tex]\frac{3}{4}[/tex]
The answer is also D because if you add x to both sides u isolate x to the left side so the equation will look like 1+4x=4 the next step will be to subtract one from each side and after doing this the equation should look like 4x=3 which should look familiar because its the same exact solution as B was so the answer to this choice is x=[tex]\frac{3}{4}[/tex]
With that evidence I can reasonably say that answer to the question is B,and D