Let
Eq1 : x - 2y = 12
Eq2 : 4x + 2y = 16
For substitution, we need to rearrange on of the equations so that we can substitute it in the other. Let's pick eq2 and rewrite it as 2y = 16 - 4x. We see that eq1 also has 2y in it, so we can plug this new version of eq2 in there.
3x - (16-4x) = 12
Now solve for x.
7x=28, so x=4
Plug that into either equation to solve for y. You get y=0.
So your answer is x=4, y=0
Answer:
i think its X squared=y squared +4
Step-by-step explanation:
thats what i got
Select ALL situations for which only zero or positive solutions make sense.
Lan Ying and Sean love bike riding. They take off from the same place, at the same time, going in the same direction. Lan Ying rides at a steady speed of 6 km/h, and Sean rides at a steady speed of 4km/h. How far apart will they be in 3 hours?
Answer:
6 Kilometers.
Step-by-step explanation:
Try not to overthink these questions! They are easy if you just think of them in simple terms!
6 km * 3 h = 18 km
4 km * 3 h = 12 km
18 km - 12 km = 6 km.
622,620 people voted in the Lancaster City Council election. Each candidate received the
exact same number of votes. How many city council candidates could there have been?
Select all the possible numbers.
3
9
4
10
Jay
Submit
Answer:
All of the above
Step-by-step explanation:
I'm not sure, but if you divide the number of people by each candidate, you'll get a value that the number of candidates will equal the number of people. I repeat I'm not sure of my answer.
HELP PLEASEEEEE THank you fractions & ratios fill in space:
Answer:
2334546
Step-by-step explanation:
the answers is 2/3 /4/2 and 5/6
A lawn mower company wants to show how much time a homeowner can save by using a ride-on lawn mower instead of a push lawn mower. The company collected data on the time (t minutes). The time also includes 5 minutes to set up the push lawn mower and 15 minutes to set up the ride-on lawn mower.
The equations for the best-fit lines for the data are shown below.
I need help please I don't get it
answer pls 10pts.........................
Answer:
[tex]7x + 4 = 5x + 16 \\ 7x - 2x = 16 - 4 \\ 5x = 12 \\ x = 2.4[/tex]
[tex] \\ y + 6 + (7x + 4) = 180 \\ y + 6 + 7 \times 2.4 + 4 = 180 \\ \\ y + 17 + 16.8 = 180 \\ y + 33.8 = 180 \\ y = 180 - 33.8 \\ y = 146.2[/tex]
What is the 20th term of the sequence 2n-5? I need help.
Answer: 35
Step-by-step explanation: substitute 20 into n,
2(20)-5
40-5
35
Miss Holloway has four bags of miniature candy bars. Each bag contains 30 candy bars. How many candy bars with each of the 27 students receive? How many will be left over?
Answer:
four, 12 will be left
Step-by-step explanation:
120/27 equals 4; the remainder (“left over”) is 12
Answer:
4 per student, 12 remaining
Step-by-step explanation:
4x30=120
120/27=4.44
27x4=108
120-108=12
Im gonna sleep after this but for now Help ^^
Answer:
Both prisms have the same volume.
Step-by-step explanation:
Volume of Naomi's Prism:
5 x 2 x 14 = 140[tex]cm^3[/tex]
Volume of Ben's Prism:
(5 x 4) / 2 x 14 = 10 x 14 = 140[tex]cm^3[/tex]
They therefore have the same volume.
12. Convierte estas fracciones impropias en números mixtos:
A. 15/7=
B. 16/6=
C. 12/5=
D. 48/7
Por favor.
Answer:
15/7 = 2 1/7
16/6 = 2 4/6
12/5 = 2 2/5
48/7 = 6 6/7
Step-by-step explanation:
What is the approximate area of the shaded region? Use 3.14 for pi
Please do step by step...
Answer:
A. 20.86 square inches
Step-by-step explanation:
a)
We know that the formula for the area of a rectangle is Length x Height (A = LH).
Length (L) = 6 inches
Height (H) = 4 inches
So we incorporate our formula for the area of a rectangle into this situation:
Area (A) = 6 x 4
Area (A) = 24 in^2
b)
We know that the formula for the area of a circle is Pi x radius squared (A = πr^2).
Radius (r) = 1 inch
So we incorporate our formula for the area of a circle into this situation:
Area (A) = 3.14 x 1^2
Area (A) = 3.14 in^2
c)
We can see from the diagram that the shaded region come mainly from the rectangle. So to find the area of the shaded part, we can simply subtract the area of the circle, from the area of the rectangle (Area of rectangle - Area of circle = Area of shaded region).
Area of rectangle = 24 in^2
Area of circle = 3.14 in^2
So we incorporate our formula for the area of the shaded part into this situation:
Area (A) = 24 in^2 - 3.14 in^2
Area (A) = 20.86 in^2
Answer:
A
Step-by-step explanation:
Find the area of rectangle Then of the circle then simply suntract.
Answers are
A. -2
B. -1/2
C. 2
D. 1/2
Answer:
c
Step-by-step explanation:
“There are 814 students going non a field trip, and they have 31 buses. How many students should go on each bus if they split up evenly on the buses? Solve the problem. Show your work”
Answer: 27
Step-by-step explanation: You have to divide. 814 divided by 31 is 26.2580645161, but you can round it to 27 so everyone can be on the bus, but with extra spaces
Answer:
27
Step-by-step explanation:
Type a digit that makes this statement true.
7,176,260 is divisible by 3.
Submit
Answer:
1, 4 or 7
Step-by-step explanation:
The divisibility rule/shortcut for 3 is that the sum of its digits is divisible by 3. So, you currently have 29 (7+1+7+6+2+6+0), and you have to make that number divisible by 3.
adding 1 gets you 30, which we know is divisible by 3.
then, instead of trying every digit, we can note that
30 , 33 , 36 , 39 ....
are divisible by 3.
But the most we can add to the sum of 29 is 9 (because that is the highest digit possible)--so numbers above 38 are irrelevant
so, we want to find out if we can make 29 into 30, 33, or 36
adding 1 to 29 = 30
adding 4 to 29 = 33
adding 7 to 29 = 36
So, by making the first digit 1 , 4 , or 7, you make the number divisible by 3 (making the sentence true)
HELP ME PLEASEEEEEEE I LOVE YOU SO MUCH.....Find the mean for the set of data { 6, 12, 22, 16}
Answer:
14
Step-by-step explanation:
The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set.
6+12+22+16 = 56
56/4 = 14
The mean is 14.
Translate the sentence into an inequality. A number b increased by 6 is greater than "-27."
Answer:
b+6>-27
Step-by-step explanation:
b
b+6
Answer=b+6>-27
Eric surveyed different people with cell phones.
Ages in years = a
Texts they send per day = t
He drew a best-fit line and determined its equation.
Evaluate how old a person who sends about 70 texts a day is.
Answer:
B = 10.4
TTETEEETETTET
please help meeeeeeeeeeeeeeeeee
Answer:
Equivalent to 8(t+8):
8t+64
(8*t)+(8*8)
Equivalent to 8t+8:
4t+8+4t
4(2t+2)
Equivalent to neither:
8t+16
(8+t)+(8+8)
Step-by-step explanation:
First we expand the bracket 8 (t + 8)
This gives us 8t + 64
Option 1:
8t + 16 is not an option, so it goes in the neither box.
Option 2:
8t + 64 is an option, so it goes in the 8 (t + 8) box.
Option 3:
(8 * t) + (8 * 8) is an option, so it goes in the 8 (t + 8) box.
Option 4:
4t + 8 + 4t is an option, so it goes in the 8t + 8 box.
Option 5:
4 (2t + 2) is an option, so it goes in the 8t + 8 box.
Option 6:
(8 * t) - (8 * 8) is not an option, so it goes in the neither box.
please help me 50 points
bad answers will get reported
The mean of the ages of the men that are given will be 22.1.
How to calculate the mean?It should be noted that mean simply means average. The mean of the men will be:
= (27 + 20 + 20 + 19 + 19 + 25 + 24 + 21 + 22 + 24) / 10
= 221/10
= 22.1
Therefore, the mean of the ages of the men that are given will be 22.1.
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Help ASAP its due today!
Answer:
The answer is D) 60
Step-by-step explanation:
BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!
The table shows the relationship between the time and distance a car travels. What is the missing value?
Hours Miles
1 55
2 110
3 165
4 ?
Wan has 22 bulbs of the same shape and size in a box. The colors of and amounts of the bulbs are shown below:
6 blue bulbs
9 red bulbs
7 orange bulbs
Without looking in the box, Wan takes out a bulb at random. He then replaces the bulb and takes out another bulb from the box. What is the probability that Wan takes out an orange bulb in both draws? (5 points)
Answer: A
Step-by-step explanation:
This type of question is compound probability and it involves independent variables because the outcome of 1 event doesn't impact the probability of the next one.
the probability of taking an orange bulb is 7/22. Since he put that bulb back in the box, the probability of taking an orange bulb again, doesn't change. So the "compound probability " is 7/22x7/22= 49/484.
Answer= A
Hope this helps :)) And Brainliest would be appreciated :)
Help. Getting kind of fed up with homeschooling and just need to get it done.
The dot above the 4 is solid so 4 is part of the solution.
Answer: X ≥ 4
Can someone answer this
Answer:
what grade is this lol I don't know
Kayla stacked her 1-inch cubes to make this rectangular prism.
What is the volume of Kayla's prism?
A.) 45 in³
B.) 55 in³
C.) 75 in³
D.) I don't know.
Answer:
75 inches^3
Step-by-step explanation:
count units on each edge 5 units * 5 units * 3 units 5*5*3 is 75
Find the surface area of the rectangular prism
Answer:
158 in
Step-by-step explanation:
front/back faces: 8 * 3 = 24in
side faces: 8 * 5 = 40in
top/bottom faces: 3 * 5 = 15in
2 * (24 + 40 + 15) = 158in
hurry ill give brainly
Answer:
10
Step-by-step explanation:
And this figure 14.2% of the area is painted green. how much of the area is paint a great?
Answer:
Answer: . Area of figure = area of squane + anea
of tringle =side * side + 1/2 xbagex height =7 * 7+
1/2 * 7 *
Approximately 8.47 cm² of the figure is painted green
What is a square?A square is a two-dimensional figure that has four sides and all four sides are equal.
The area of a square is given as side².
We have,
To find the area painted green, we need to calculate the areas of the square and the triangle and then multiply by 14.2% (or 0.142).
The area of the square is simply the length of one side squared, so:
Area of square = (7 cm)² = 49 cm²
The area of the triangle is one-half the base times the height, so:
Area of triangle = (1/2)(7 cm)(3 cm) = 10.5 cm²
Therefore, the total area of the figure is the sum of the area of the square and the triangle:
Total area = 49 cm² + 10.5 cm² = 59.5 cm²
Finally, to find the area painted green, we multiply the total area by 14.2%:
Area painted green = 0.142 x 59.5 cm² ≈ 8.47 cm²
Therefore,
Approximately 8.47 cm² of the figure is painted green
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A video rental store keeps a list of its top 15 movie rentals each week. This week the list includes 6 action, 4 comedies, 3 dramas, and 2 mysteries. The store manager removes a copy of each of the 15 movies from the shelf, then randomly selects 3 of the 15 to show on the display monitors in the store. What is the probability that she selected 2 comedies and 1 action movie?
Answer choices:
72/3375
96/3375
72/2730
96/2730
The probability that the store manager selects 2 comedies and 1 action movie is 96/3375.
Given that,
A video rental store keeps a list of its top 15 movie rentals each week.
Total = 15
Action movies = 6
Comedies = 4
When she selected three movies,
Probability of selecting an action movie = 6/15
Probability of selecting a comedy movie = 4/15
Probability of selecting one action and 2 comedies = 6/15 × (4/15)²
= 96/3375
Hence the required probability is 96/3375.
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