Answer:
x=-3
Step-by-step explanation:
4x-2 = 8x+10
4x-2 (-8x) =8x+10 (-8x)
-4x-2=10
-4x-2 (+2)=10 (+2)
-4x = 12
-4x (divded by -4) = 12 (divided by -4)
x = -3
hope it is correct! and hope i helped
1)What if you have two equations equal to y? How do you solve for x?
2)If you need to solve for a variable to substitute, what is your first step?
3)What does it mean to substitute for a value?
Answer:
Step-by-step explanation:
If you have two equations for y, eliminate y by setting these two equations equal to one another. Solve the resulting equation for x. Then substitute your x value into one of the equations for y. Write your solution as (x, y).
2) If you need to solve for a variable to substitute, what is your first step? Example: If you have two equations for y, eliminate y by setting the two equations equal to each other. This decides for you that you must solve for x.
3) What does it mean to substitute for a value? Example: If you have y = 3x and 2x + y = 17, replace y in the second equation with 3x. This eliminates y and allows you to solve for x.
The translation above shows an object moving?
Answer:
A I think, but these question were never by strongest point in math.
Step-by-step explanation:
Answer:
A 8 to the right 6 up
Step-by-step explanation:
All you have to do is count the number of spaces between the two
giving out all 28 of my points and ill give you brainliest just plz someone
Answer:
' ..
Step-by-step explanation:
what is the sum of 16/100 + 6/10
Please can you explain
Answer:
its 3
Step-by-step explanation:
HELPPPPPPPPPPP!!!!!!!!!!
Answer:
(4, 9) and (7,343)
What is the fractional equivalent of 1.37?
Answer:
137/100
Step-by-step explanation:
1.37 ( to fraction)
divide by 100
137/100
Find the correct plugged in formula for each figure.
Answer:
3
Step-by-step explanation:
I'm just guessing because you don't give any numbers or anything at all
please awnser these (sourse: eureka math grade 6 module 4 lesson 5 problem set)
Answer:
For the first row
- 3 x 3 x 3 x 3 x 3 and 243
The second row
- 4³ and 64
the third row
- 1.9 x 1.9 and 3.61
For the last row
- 1/2 x 1/2 x 1/2 x 1/2 x 1/2 and 1/32
Step-by-step explanation:
Basically, an exponential form is a number with an exponent. What's an exponent you may be asking, an exponent is that little number on the top left of a base number (aka the normal sized number there), what an exponent does it make that base number multiply by itself how many ever times it says. So for example, lets say our base number is 3 and our exponent is 4, we would have to multiply 3 by 3 4 times, like this: 3 x 3 x 3 x 3.
The expanded form is what I just did before, it just shows what the exponent is doing, like the 3 x 3 x 3 x 3 thing, that is the expanded form of 3⁴.
And lastly the standard form is just what we usually see it as, like the standard form for 3⁴ would be 81. I like to think of it as the answer to what ever that exponential form's expanded form is, the answer to 3 x 3 x 3 x 3 = 81.
Sorry if this seems very confusing, this is my first time answering a question here, so if you see any mistakes, please correct me.
Task:
Engineers are digging a 3200-foot-long tunnel at a constant rate. After 5 months, the engineers still need to dig 1700 feet to finish the project. How much time does it take to complete the tunnel from start to finish?
Will the engineers have enough time if the project was started in December 2020 and the deadline to finish the project was in August 2021? Please explain your answer for yes or no.
Hint:
y=mx+b (slope-intercept form)
x=time
y=distance
b=3200
Start & Finish: ??
Total length=3200ft
Answer:
318 days or 10.6 months,
No, because the time between august and december is 8 months and it would take 10 to complete the tunnel
Step-by-step explanation:
start by determining the slope:
subtract the remaining distance from the total distance to determine distance so far, then divide by time.
m = (3200 - 1700)/5
m = 1500/5
m = 300
y = mx + b
Plug in to solve for x.
3200 = 300x + 0
3200 = 300x
divide y by m. This is x. (this is known as inverse operation if you didnt know already.)
3200 = 300(10.6_)
i need help with dis math
How many times would you predict to roll a sum of 12 out of 180 rolls? Show your work.
Answer:
5.
Step-by-step explanation:
On 1 roll of 2 dices probabilty of 12 = 1/6 * 1/6 = 1/36
So the prediction ffor 180 rolls
= 1/36 * 180
= 5
help i will give 20 points!!
Help me plzzzz!!!! I can give brainlist to the first right person. You just need to do numbers 2, 4 and 5.
Answer number 4 is 171 cm and number 5 is 96 inch and number 2 is 72 cm
Step-by-step explanation:
You have to multiply length times width for 4 and 5 and 2 how I got the answer. pls mark brainliest if helped.
Answer:
2. 200.52 4. 212.67 5. 148.48
Step-by-step explanation:
for (2) you find the area of each shape first the square
12*12=144
then you find the area of the semicircle
the formula is A= (3.14)r^2/2
the (r) is 6 because that is half of the whole side of the semicircle
so... (3.14) 6^2/2
6*6= 36
(3.14)36/2
113.04/2
56.52
then add the 144 from the square to it
56.52+144
200.52
question (4)
-85.5 (area of the triangle)
-127.17 (area of the semicircle)
212.67
question (5)
-48( area of triangle)
-100.48 (area of semicircle)
148.48
Giving brainy
Triangle PQR is transformed to triangle P′Q′R′. Triangle PQR has vertices P(8, 0), Q(6, 2), and R(−2, −4). Triangle P′Q′R′ has vertices P′(4, 0), Q′(3, 1), and R′(−1, −2).
Plot triangles PQR and P′Q′R′ on your own coordinate grid.
Part A: What is the scale factor of the dilation that transforms triangle PQR to triangle P′Q′R′? Explain your answer. (4 points)
Part B: Write the coordinates of triangle P′′Q′′R′′ obtained after P′Q′R′ is reflected about the y-axis. (4 points)
Part C: Are the two triangles PQR and P′'Q′'R′' congruent? Explain your answer. (2 points)
Answer:
The scale factor from triangle PQR to P'Q'R' is 1/4.
The length of each side of the triangle is divided by 4, in other words it is multiplied by the scale factor of 4.
If P'Q'R" is reflected over the y-axis the new points would be: (1, 0) (0, 1) and (-2, 1).
No, the triangles are not congruent. There was a dilation of 1/4 in the triangles.
Step-by-step explanation:
The following cards are used in a game. If each of the cards is turned over and shuffled, then how much of a greater chance is there in drawing a spade over drawing a 7?
Answer:
1/6 of a chance aka 16.666?%
Step-by-step explanation:
The probability of drawing a card with number 7 is 0.166.
What is the probability?Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.
We know that, probability of an event = Number of favourable outcomes/Total number of outcomes.
From the given set of cards,
Total number of cards =6
Number of spades = 3
Number of card with number 7 on it = 1
Probability of drawing a 7 = 1/6
= 0.166
Therefore, the probability of drawing a card with number 7 is 0.166.
To learn more about the probability visit:
https://brainly.com/question/11234923.
#SPJ3
help..............................
Answer:
w=22
Step-by-step explanation:
just get w by itself
3w=66
3w/3=66/3
w=22
Answer: 22
Step-by-step explanation:
3x22=33
helppppppppppppp pls thank uuuuuuuuu
Answer:
2. the one farther to the right is greater
Which statement about the net is true?
A. The net can be folded to form a pyramid because at least one of the faces is a triangle.
B. The net can be folded to form a pyramid because more than one of the faces is a triangle.
C. The net cannot be folded to form a pyramid because one of the faces is a rectangle.
D. The net cannot be folded to form a pyramid because the faces that are not a base are not all triangles.
The statement A is true. The net can be folded to form a pyramid because at least one of the faces is a triangle.
In this problem, the net consists of four rectangles and two triangles, which can be folded to form a pyramid. The two triangles and one pair of adjacent rectangles form the lateral faces of the pyramid,while the other pair of adjacent rectangles form the base.
however, at least one of the faces of the pyramid must be a triangle,which is true for the lateral faces in this case. Therefore, statement A is true and the net can be folded to form a pyramid.
To learn more about adjacent,
https://brainly.com/question/28394984
Simplify: -7 • 12
Giving brainliest^^
A) -84
B) -74
C) 74
D) 84
True or False? A convenience sample is always valid and reliable.
Answer:
a convenience sample is always valid and reliable is true not false
Step-by-step explanation:
350% of 69 is what number
Answer:
241.5
Step-by-step explanation:
If you didn't know of in math means to multiply.
350% of 69
=350/100 ×69
=241.5
I dont understand this-
(Look at picture below
what is the midpoint of 23.8 and 23.7?
Answer:
23.75
Step-by-step explanation:
Answer:
23.75
Step-by-step explanation:
1. 23.8 - 23.7 = 0.1
2. 0.1 ÷ 2 = 0.05
3. 0.05 + 23.7 = 23.75
this works because to find the middle of two numbers (in this explanation 10 and 20), you have to subtract the larger one from the smaller one (20 - 10 = 10) and take your sum and divide it by two (10 ÷ 2 = 5) and then add it back to the smaller number (5 + 10 = 15 = 1/2 the midpoint of 10 and 20)
Can you tell me if this equation I made for a project is correct?
x-13=7
x-13+13=7+13
x=20
Can you help me fix it if it is not correct?
THANK YOU
Im trying to do IXL and I dont understand the way my teacher teaches (ironic right?)
the points (-2,-10) and (8,r) fall on a line with a slope of 1/10. What is the value of r?
Answer:
(8,-9)
Step-by-step explanation:
I used desmos to find your answer and got to finding the point using the slope. Sadly I can't link it for you
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
Martha is mixing up different color candies for treat bags. She used of a pound of yellow candies, of a pound of red candies, of a pound of green candies, and of a pound of blue candies.
How many pounds of blue and green candies were used for the treat bags?
Answer:
Martha has diabetes
Step-by-step explanation:
Kelly drew the angle shown,
which value is closest to measurement of Kelly's angle?
Answer:
70°
Step-by-step explanation:
it's an acute angle so it couldn't be 110 since that would make it obtuse.
Help me with PART B!!! Use image to help!!
Answer:
I think 4 players
Step-by-step explanation:
First, you multiply by two on the denominator and numerator. Then, you'll have 4/18. 18 being the total amount of players and 4 being the amount of players who like the wood bat.
The grocery store has 2 1/3 times as many cashiers in late afternoon than in the morning. If there are 21 cashiers at 10:00 am, how many would there be at 4:00 pm?