Answers
Related Questions
Select all the expressions that are equivalent to 4 (3x+6y
A. 12x+6y
B. 12x+24y
C. 2 (6x+12y)
D. 4 (12x+24y)
Answers
Answer:
the answers are b and c
Step-by-step explanation:
b
[tex]12x + 24y = \\ 4(3x + y)[/tex]
c
[tex]2(6x + 12y) = \\ 12x + 24y = \\ 4(3x + 6y)[/tex]
hello please help i’ll give brainliest
Answers
Answer:
Sea Travels
Step-by-step explanation:
Hope this helps
Answer:
Crossing a land bridge.
Step-by-step explanation:
We that what I think they would do.
half-life of Po-210 is 140 days. If the initial mass of the sample is 5
kg, how much will remain after 420 days.
Answers
Answer:
[tex]0.625kg[/tex]
Step-by-step explanation:
we are given half-life of PO-210 and the initial mass
we want to figure out the remaining mass after 420 days
in order to solve so we can consider the half-life formula given by
[tex] \displaystyle f(t) = a {0.5}^{t/T} [/tex]
where:
f(t) is the remaining quantity of a substance after time t has elapsed.a is the initial quantity of this substance.T is the half-lifesince it halves every 140 days our T is 140 and t is 420. as the initial mass of the sample is 5 our a is 5
thus substitute:
[tex]\displaystyle f(420)=5\cdot{0.5}^{420/140}[/tex]
reduce fraction:
[tex]\displaystyle f(420)=5\cdot{0.5}^{3}[/tex]
By using calculator we acquire:
[tex]\displaystyle f(420)=0.625[/tex]
hence, the remaining sample after 420 days is 0.625 kg
if the dimensions of the prism base are 4 feet of length and 3 feet of width what is the height
Answers
Answer:
Step-by-step explanation:
Could you send a picture?
Please help me with my work
Answers
Answer:
Step-by-step explanation:
This is just simple addition so there really isn't anything to talk about.
Just note that -5 1/2+6 3/4=1 1/4.
Then, we do 1 1/4+(-4 1/4)
This is just -3.
57 POINTS!!!!!!! PLEASE HELP MEE. ALSO DUEE RIGHT NOW
TOPIC: MATH
Please solve all the questions in the attachment.
Answers
Answer:
1. 2
2. 5.2
3. (c * 2) - 3= a
4. ($85 + $35 * h)
Step-by-step explanation:
1. |4−2| (simplified)
= |2|
=2
2. 2a^2 = 5.2
(22)(1.3)
=(4)(1.3)
=5.2
(2.6 - (2*1.3))=
5.2 - (2.6 - 2.6) = 5.2
3. (c * 2) - 3= a
4. ($85 + $35 * h)
How much Zn and how much HCl should be used to produce 1.5 g ZnCl2
Answers
Answer:
0.71963 g of Zn0.80256 g of HClStep-by-step explanation:
The required mass of reactants can be computed from the number of moles of product.
moles of ZnCl₂ = (1.5 g)/(136.282 g) ≈ 0.0110066 moles
Then the mass of Zn required is ...
mass of Zn = (0.0110066 mol)(65.382 g/mol) = 0.71963 g
Two moles of HCl are used in the reaction with each mole of Zn, so the mass of HCl required is ...
mass of HCl = 2(0.0110066 mol)(36.458 g/mol) = 0.80256 g
_____
Comment
The discrepancy in the last two decimal places of the weights above versus the calculator output below comes from rounding of moles of Zn to 4 significant digits, instead of 5 or more. The number of moles of ZnCl₂ is closer to 0.0110066.
WILL GIVE BRAINLIEST NO LINKS ANSWER ASAP
a taste test asks people from Texas and California which pasta they prefer brand a or brand b this table shows the results a person is randomly selected from those tested what is the probability that the person is from Texas given that the person prefers brand a
0.62
0.47
0.45
0.64
Answers
Answer:0.47
Step-by-step explanation:
Answer:
its b i just took this on a p 3 x :))
Step-by-step explanation:
Help me please worth 10 points
Answers
27 / 23 = 27/23, that is its simplest form.
If Jane has 23 cats and I have 2 cats, and then Jane gives me 5 cats, how many more cats does Jane have than I? Rhonda has 12 marbles more than Douglas. Douglas has 6 marbles more than Bertha. Rhonda has twice as many marbles as Bertha has.
Answers
Answer:
11 cats
Step-by-step explanation:
Given :
Jane's initial = 23
My initial = 2
Jane gives out 5 cats to me ;
Jane's new = 23 - 5 = 18
My new = 2 + 5 = 7
Number of cats Jane has than me :
Jane's new - My new
18 - 7 = 11 cats
Second question is incomplete. We aren't told what to calculate.
PLEASE HELP!!!
A weather forecaster predicts that there is a 50% chance of rain on Saturday and a 40% chance of rain on Sunday. If these probabilities are correct, what is the probability that it will rain on both days?
Answers
The probability distribution for a
random variable x is given in the table.
X
-5
3
-2
0
12
3
Probability
.17
-13
1.33
.16
. 11
. 10
Find the probability that x<0
Answers
Answer:
0.50
Step-by-step explanation:
X ___ - 5 ___ 3 __ - 2 __ 0 __ 12 __ 3
P(x) __0.17_0.13_0.33 _0.16 _0.11 _0.10
P(x <0) = p(x = - 2) + p(x = - 5)
P(x < 0) = 0.33 + 0.17
P(x < 0) = 0.50
Answer:
the answer is 0.79
Step-by-step explanation:
.17+.13+.33+.16=0.79 they are asking for less then or equal to 0 so just add all the percents of those numbers and boom hope that helped :)
person 6-9 MathXL 8th grade question 2
Answers
Answer:
<1 = 112degrees
<2 = 33degrees
Step-by-step explanation:
From the figure, the sum of interior angles of the larger triangle is equal to the exterior, hence;
<1 + 15 = 127
<1 = 127 - 15
<1 = 112degrees
For the smaller triangle;
<1 = <2 + 79
112 = <2 + 79
<2 = 112-79
<2 = 33
Hence the measure of <2 is 33degrees
Alma just turned 15 years old. Her parents started saving $300 each month for her college education when she was born. Her parents want to save at least $150,000 by the time she turns 18 to cover tuition expenses at a 4-year college. How much would they need to save each month for the next 3 years to reach their goal?
Answers
Answer:
Its letting me answer now, so $2,666!
Step-by-step explanation:
First, you wanna find out how much money they have saved. So, since they saved $300 a month, and shes 15, to find out how much they have we have to multiply 300 by the amount of months. Shes 15 and there are 12 months in a year, so 15 x 12 = 180. So thats 180 months, so, 180 x 300 = 54,000. That means so far they have saved 54,000. Well, we need to find how much more money they need. So, the total 150,000 - 54,000 = 96,000. They need 96,000 more dollars. So, lets divide that by 3 years, which is 36 months, since they only have that much time to save. 96,000/36 = 2,666 dollars. I hope that helps you understand! I would really appreciate it if I could have brainliest!
A bag of cookies contained 9 chocolate chip cookies, 10 sandwich cookies, and 3 peanut butter cookies. If you
reach into the bag without looking, what is the probability that you will NOT pull out a peanut butter cookie?
Write your answer as a fraction in simplest form.
Answers
Answer:
19/22
Step-by-step explanation:
cc = 9
sand = 10
pb = 3
total = 22
P(not pb) = 19/22
A line passes through the point (2,10) and has a y-intercept of 4. What is the equation of the line?
Answers
Answer:
Step-by-step explanation:
Slope= 10-4/2-0=3 y= 3x+4 (10= 3(2)+4
x years after the year 2015 the population of the city of Fulton is given by the function of F(x)=35000(1.03)^x and the population of the city of breenville is given by the function g(x)=80000(0.95)^x ?
Answers
Answer:(2) (3) (4)
Step-by-step explanation:
Laptop scan 182 megabytes of data in 7 seconds. How many megabytes does it download per seconds
Answers
Answer:
jdkkdksmsmsmsksksksksksmaMmamMamnz
Step-by-step explanation:
nnznznznznxnxnxnsnskakakakakakzznnznanananaan
Please help!! I've been stuck on this for a while, any help is greatly appreciated!!
What is the equation that represents the table below?
Answers
Answer:
every 2.5 kilometers is another 4 miles
Step-by-step explanation:
by looking at the chart you can see that the kilometers raise by 2.5 every 4 miles.
Three boys spent the afternoon playing a video game and then compared their best scores. Al says, "My best today is 1800 points more than yours, Bob." Carlo says, "I was having a good day. My 7200 points is 2/3 as much as your two scores combined, Al and Bob." How many points did each boy get in his best game that afternoon?
Answers
Answer:
Bob = 4500
Al = 6300
carlo = 7200
Step-by-step explanation:
the following equations can be derived from the question
A = B + 1800 equation 1 or A - B = 1800
C = 7200 = 2/3 (A + B) equation 2
where A = Al's score
B = Bob's score
C = Carlo's score
Make A + B the subject of the formula in equation 2
A + B = 10,800 equation 3
subtract equation 1 from 3
2B = 9000
B = 4500
Substitute for B in equation 1
A = 4500 + 1800 = 6300
please help me!!!!lol
Answers
Answer:
a = 0, b = 7
a = 1, b = 6
a = 2, b = 5
a = 3, b = 4
a = 4, b = 3
a = 5, b = 2
a = 6, b = 1
a = 7, b = 0
Step-by-step explanation:
the sum of a and b must equal 7 because 4 x 7 = 28
would be so kind of someone to solve this ty (it’s multiple choice btw)
Answers
Answer:
C
Step-by-step explanation:
1. Find the surface area of the Rectangular Prism. 12 cm 28 cm 22 cm
Answers
Answer:
The awnser is 2432
Step-by-step explanation:
12x28x22= 2432
A basket contains five apples and eight
peaches. You randomly select a piece of
fruit and then return it to the basket. Then
you randomly select another piece of fruit.
Both pieces of fruit are apples.
Answers
Answer:
A group of girls plays 2 hours of video games. They equally share the playing time between the 4 of them. How many minutes of play time does each girl get?
Answers
2/4 which is .5 you’ll need to convert this to time and half an hour or 30 mins equals .5
Hope this helps have a good day
Answer: A: 30
Step-by-step explanation: 2 hours in minutes is 120 minutes.
(60 minutes is in an hour so multiply 60 * times 2=120)
120 divided by 4 is 30. You're splitting 120 minutes into 4 pieces.
30 is the answer. Happy Women's Month! #BeBrainly
A bakery bakes 2000 loaves in 5 hours . How many loaves will be baked in 12
Answers
Answer:
4,800 loaves.
Step-by-step explanation:
Solve by utilizing ratios and cross-multiplication.
Explanation:
Unjt rate is 400 loaves per hour (divide 2000 by 5)
Multiply 400 • 12= 4,800.
Have a nice day/night!
Jimmy bought a refrigerator that cost $525 before tax. He paid 8% of this amount in tax. What was the total cost of the refrigerator including tax?
Answers
Answer:
$567 after tax
Step-by-step explanation:
first, let's multiply 525 by 0.08 because he paid 8% (0.08) of 525 in tax.
525(0.08)= 42
now, let's add them together, because the question asks for the total cost.
525+42=567
$567 after tax
Find the sum of the first 8 terms of the following sequence. Round to the nearest hundredth if necessary. 20,40,80,...
Answers
Answer:
5100
Step-by-step explanation:
the geometric sequence is
f(n) = 20(2)^(n-1)
add up the first 8 to get
What’s the point of intersection line 1 is 3x-2y=5 and Line 2 is x+2y=7
Answers
Answer:
(3,2)
Step-by-step explanation:
3x-2y=5
x+2y=7 Add them up
4x=12 Solve for x
x=3
3+2y=7 Plug it back into either one of the parent functions and solve for y
2y=4
y=2
(3,2) That's the point where the two lines intersect each other.
A map has a scale of 5 in. = 15 mi. If you measured the distance between two cities to be 26 in. On the map, how many miles would it actually be? If necessary, round your answer to the nearest tenth.
Answers
Answer:
Actual distance between the two cities given on the map = 78.0 miles
Step-by-step explanation:
Scale used for the actual distance between two cities on a map is,
5 in. = 15 mi.
[tex]\frac{5}{15}[/tex] in. = [tex]\frac{15}{15}[/tex] mi.
1 mi. = [tex]\frac{1}{3}[/tex] in.
1 inch = 3 miles
Therefore, 26 inches on the map = 26 × 3
= 78 miles
Therefore, actual distance between the two cities given on the map = 78.0 miles