Answers
Answer:
a. the first and last one
b. the second and third one
Step-by-step explanation:
a. 11x-3x-10x=18x, so the first one is definitely the answer. If you look at the last one, you can see that 10x+8x also equals 18x. The other options do not equal 18x, so those can be eliminated.
b. If you distribute the 3 outside of the parentheses, you can see that the expression 3(1+3y) equals 3+9y (because 3*1=3 and 3*3y=9y). So, the third one can be determined to be one of the answers. We can see that the second one also simplifies to be 3+9y, so this one can also be determined to be the answer. The other ones can be eliminated because they do not equal 3+9y.
Hope this helped! :)
Answer:
a) 18x and 8x + 10x
b) 3 × 1 + 3 × 3y and 3 + 9y
Step-by-step explanation:
11x - 3x = 8x and then 8x + 10x is left. The answers are 18x and 8x + 10x.
3 × 1 is 3 and 3y × 3 is 9y.
Related Questions
The populations of two cities after t years can be modeled by -150t+50,000 and 50t+75,000 . What is the difference in the populations of the cities when t=4 ?
Answers
Answer:
The difference in the populations of the cities when t=4 is 25,800.
Step-by-step explanation:
Given equations each of the city:
-150t+50,000
and
50t+75,000
To find the difference between the population when t=4, we first have to solve both equation when t=4.
For both equations, substitute 4 into t:
-150(4) + 50,000 = 49,400
50(4) + 75,000 = 75,200
Now subtract 49,400 from 75,200 and you get 25,800.
The difference in the populations of the cities when t=4 is 25,800.
Jack shares 2.1 liters of water equally into 7 containers. How many milliliters are in each container? (4 points)
0.3 milliliters
300 milliliters
2,100 milliliters
14,700 milliliters
Answers
Factor the expression using the GCF.
4m+32
Answers
In order to factor this expression, we should divide both terms of this binomial (a polynomial with 2 terms) by 4 (the greatest common factor)
Note:- We usually factor out the Greatest Common Factor, or the GCF.
Divide:-
m
8
Add the terms:-
m+8
Put parentheses around them:-
(m+8)
Put 4 outside the parentheses:-
4(m+8)
notes:-If you wonder whether or not you've factored correctly, you can use the distributive property & distribute :)
32 = 1,2,4,6,8,16,32
We can see that the gcf is 4
divide 4m by 4 which is m
divide 32 by 4 which is 8
which will come out to be 4(m+8)
hope this helps.
Identify Structure Each figure below is made up of congruent trapezoids. Find the area of each figure.
Answers
Answer:
12cm
Step-by-step explanation:
The formula to find the area of a trapezoid is A = [tex]\frac{a + b}{2}[/tex]h. We replace the "a" and "b" with 6cm. We then replace the "h" with 12cm as your height is 12cm. The new formula is A = [tex]\frac{a + b}{2}[/tex]h = [tex]\frac{6 + 6}{2}[/tex] x 12. The answer to that equation is 12cm.
A 38 -ounce bottle of juice drink contains 6 percent water. Than computed 6 percent of 38 . His work is shown below.
6 percent of 38 =0.6×38=22.8
Which statement explains Than’s error?
hurry i need it ASAP
Answers
Answer: Than did not move the decimal point three places to the left in the answer
Step-by-step explanation:
What are the first two steps of drawing a triangle that has all side lengths equal to 12 centimeters?
Select from the drop-down menus to correctly complete the statements.
Draw a segment (6, 12, 24) centimeters long. Then from one endpoint, draw a (30, 60, 90) ° angle.
Answers
Answer:
All the sides should be 4 cm.
Step-by-step explanation:
The first triangle rule is the two sides should be greater than the longest side when added together.
For example- 4+4=8 which is bigger than 4
12 divided by 3 is 4.
Hope this helps.
Answer:
Step-by-step explanation:
Remark
All triangles have 180 degrees.
In order that all sides be 12cm long, you need to draw a base line that goes on for more than 12 cm.
Mark off the (using a ruler) a line that is 12 cm from one of the line written about.
From that same endpoint, draw an angle that is 60o. Draw a line going 60 degrees from your first line.
=============
Just to finish the triangle, go to the other end of the 12 cm line. Draw another 60 degree angle. Make it so that it will intersect the second line you drew.\
Diagram first 2 steps
PLEASE I NEED HELP!!!!!! I"LL GIVE BRAINIEST!!!
Answers
Answer:
im sorry but i need more than a picture to help you like write it out and send it to me then i can help you
Step-by-step explanation:
YOU GET Brainliest IF YOUR RIGHT!!!!!!! HELPPPP
Answers
Answer:
3/10 is greater. and the bottom part is 30
Step-by-step explanation:
because 1/6= 0.2 and 3/10=0.3.
0.2>0.3 therefore 3/10 is greater.
and to find the common denominator you just have to list out the number of and 10.
6,12,18,24,30
10,20,30
as you can see 30 is the common denominator.
Rebecca had these results when she drew 10 tiles from the bag. The bag has a total of 20 tiles. Her classmates got similar results. What is a good predication for the number of green and red tiles out of 20?
Answers
Answer:
10/20
Step-by-step explanation:
if she has 20 in total and there's only two colours I would assume it's an even chance,
For example a coin has two sides, = even chance of getting each side.
Good luck hope this helped
A triangle has one side that is 4 centimeters long and one that is 9 centimeters long. The third side is a whole number of centimeters. What is the longest possible third side?
Answers
Answer:
12 cm
Step-by-step explanation:
You want the longest possible integer length of the third side of a triangle with sides 4 cm and 9 cm.
Triangle inequalityThe triangle inequality requires the longest side be less than the sum of the other two sides:
x < 9 cm + 4 cm
x < 13 cm
The largest integer length less than 13 cm is 12 cm.
The longest possible third side is 12 cm.
<95141404393>
Please help me
A triangle with vertices A(2, -2), B(-1, -1) and C(0, 2) is reflected across the y-axis and then dilated by a factor of 3 with the origin as the center of dilation.
What is the x-coordinate of the A''?
-2
2
-6
-4
Answers
Answer:C-6
Step-by-step explanation:(2,-2) reflected over X would be (-2,2). Then dilate by 3 which you multiply by 3. So -2 x 3 = -6.
Hope it helps !
Please help!!! it will mean alot :/
Answers
Answer:
Answwe is 44
Step-by-step explanation:
that the answer
Pls Help 20 Points
The question is "What is the probability, as a percent, of a boy taking art and geometry?" Also it's not blurry and if you wish to say something, please comment it under the "ask about Question" part
Answers
i think the answer would be 33%
Be free to Ask more questions:))
Barney wanted to know how much ice cream he got in one scoop. The radius of a scoop is 2 inches. Find the volume. (Use 3.14 for pi.)
Answers
V = 4/3 x pi x r³
V = 4/3 x 3,14 x 2³ = 33,50 in³
Please help I’m stuck on 4 and 5 :(
Answers
Answer:
4) 2,400
5) The graph is going up by 500's and this could be misleading because you would have to estimate the elevation.
Step-by-step explanation:
Answer:
it depends
Step-by-step explanation:
for 4 you could say mountain a is 2,250 feet higher or that it is x% higher.
for 5 you could put "the graph may be misleading because the graph starts at a non-0 number thus making one mountain seem much taller than the other" because both mountains start at 16,500 and not 0 making the difference seem more extreme than it is.
Mario walked at a rate of mile every minutes.
What was his walking rate in miles per hour?
Answers
Answer: 4mi/h
Step-by-step explanation:
We have that Mario walks 2/3 of a mile every 10 minutes. Representing this as a fraction:
[tex]\frac{2/3}{10} \frac{mile}{minute}[/tex]
Next, you can use something called "dimensional analysis." A dimenision in this case would be the units. The desired units we want are miles per hour, but we are given miles per minute. You can use a few conversion factors to help get to those desired units. In 60 minutes, there is 1 hour. Let's multiply this conversion factor by our original fraction:
[tex]\frac{2/3}{10} \frac{miles}{minute}*\frac{60}{1} \frac{minute}{hour}[/tex]
As you can see above, the units of minutes will cancel. This will leave the units of miles on top, and hours on the bottom. Our units are now miles per hour after simplifying things:
[tex]\frac{2/3}{10}\frac{60}{1} \frac{miles}{hour}=2/3*6 \frac{miles}{hour}=4\frac{miles}{hour}[/tex]
In your own words define “reciprocal” and describe how to find the reciprocal of a fraction. Use 3/6 as an example in your explanation.
Answers
Answer:
reciprocal- flipping the denominator and numerator
Step-by-step explanation:
3/6 as a reciprocal is 6/3 just simply flip the numbers
Answer:
reciprocal- flipping the denominator and numerator
Step-by-step explanation:
Halp me i can't fail pt.3
Answers
Answer: what’s the problem?
Step-by-step explanation: I can help if you want
1+1 (FYI It's a Riddle)
Answers
Answer:
2?
Step-by-step explanation:
If you think about it-
A small container is shaped like this hexagonal prism. The prism has a base area of 7.85 cm².
What is the volume of the container?
Enter your answer as a decimal in the box.
cm³
Answers
Answer:
31.4
Step-by-step explanation:
I reaally hope this helps you
Angle math Hw. Pls help
Answers
Answer:
x = 45°
Step-by-step explanation:
We can tell that "x + 115" and 160° are vertically opposite angles, which means that they are equal. (Refer to image)
⇒ x + 115 = 160
⇒ x = 160 - 115
⇒ x = 45°
Learn more about vertically opposite angles: https://brainly.com/question/68367
Image:The diameter of a circle is 14 in.
What is the radius of the circle?
A. 7 in
B. 21 in
C. 28 in
D. I don't know.
Answers
the radius is always half the diameter :))
branliest?
I believe the answer is 7
Step-by-step explanation:
The radius is like half of the diameter and 14/2=7
Hope this helps
if you were to roll the dice one time what is the probability it will land on a 1?
Answers
Answer:
1/6
Step-by-step explanation:
A dice contains 6 faces, the probability of the dice landing on 1 is 1/6 because it has only 1 face which contains the number 1.
Jaylah started with $200 in her savings account to go to Disneyland. She wanted to increase her savings so she started babysitting. She earns $10 an hour and deposits it in her savings account. What is Jaylah's initial value and rate of change?
Answers
Answer:
Initial Value= $200, Rate of Change= $10 per hour (or just $10)
Step-by-step explanation:
The initial value is what Jaylah started with, and in this case, she starts with $200.
The rate of change is how much Jaylah earns, in this case per hour. It says that she earns $10 an hour, so the rate of change is $10.
A gallon of stain covers approximately 50 square feet of a wooden tabletop. Magaly has purchase 6 gallons of stain. Select all tabletop sizes that Magaly could fully cover if she must apply 3 coats to the porch.
A. 25 x 4
B. 2 x 60
C. 5 x 20
D. 10 x 10
Answers
Answer:
a c d
Step-by-step explanation:
all of them are 100 except b so isk what you want hope that helps
Answer:
D
Step-by-step explanation:
I am pretty sure it is going to be D sorry if I am wrong
A grocer combined peanuts that cost $5.20/lb with walnuts that cost $6.40/lb. How many pounds of each were used to make a 45 pound mixture that cost $6/lb?
Answers
Answer:
Step-by-step explanation:
online note taking is weird please help
Answers
Answer:
25% off the entire purchase is better and will save you money over the 40% off
Step-by-step explanation:
this was due like a week ago please help :)
Answers
Can you please give me an answer and explain it if you can
Answers
Answer:
6 x 10 = 60 x 2 = 120
10 x 10 = 100
120 + 100 = 220
thats my guess im not sure what its asking lol
What is the area of the circle?
12.56 square inches
6.28 square inches
25.12 square inches
3.14 square inches
Answers
Answer:
D. 3.14
Step-by-step explanation:
A = πr^2
2/2=1
r=1
1 squared is 1
so, 1 X Pie = 3.14