Answer:
-1/60
Step-by-step explanation:
9/20-7/15=27/60-28/60
=-1/60
Answer:
-1/60
Step-by-step explanation:
The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.
LCD(9/20, 7/15) = 60
Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.
(9/20×33)−(7/15×44)
Complete the multiplication and the equation becomes
27/60−28/60
The two fractions now have like denominators so you can subtract the numerators.
Then:
27−28/60=−1/60
This fraction cannot be reduced.
Therefore:
9/20−7/15=−1/60
Has anyone done Exponential Growth and Decay (in mathematical models with application A) on sos or odysseware and gotten a prefect score?? Pls help!
I need help on the whole assignmnet but particularly this question..
Answer:
1) 62.5
2) 50
3) 75
4) 100
Step-by-step explanation:
1)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After [tex]25*4=100[/tex] days, there will be [tex](1/2)^{4}=1/2^{4}=1/16[/tex] of it left.
So, [tex]1000/16=\boxed{62.5}[/tex].
2)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After [tex]25*3=75[/tex] days, there will be [tex](1/2)^{3}=1/2^{3}=1/8[/tex] of it left.
So, [tex]400/8=\boxed{50}[/tex]
3)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After [tex]25*2=50[/tex] days, there will be [tex](1/2)^2=1/2^{2}=1/4[/tex] of it left.
So, [tex]300/4=\boxed{75}[/tex].
4)
The only answer left is [tex]\boxed{100}[/tex] grams. You can solve it the same way you solved the previous steps.
Look at picture ! Determine the number of sides for the 6th shape in this pattern.
A) 6
B) 7
C) 8
D) 9
Answer: C) 8
Explanation: It seems that the first three shapes in this pattern are increasing by one side as they progress, that means they go 3 sides, 4 sides, 5 sides, etc. If this keeps going until the 6th shape, it would land on 8 sides, which is an octagon.
I hope this helps you :)
List at least 4 common variable expenses someone might have each month.
Answer:
water, food, toliet paper, toothpaste
Step-by-step explanation:
Jim estimates the width of his wall to be 8 feet. The actual wall
measures 8.25 feet wide. What is Jim's percent error?
First correct ans. Gets Brainlyist
Answer:
3.03030303
Step-by-step explanation:
8÷8.25×100= 96.969696% ( percentage of no error)
percentage of error is 100- 96.969696= 3.030303
is V 10 greater than, less than, or equal to 5? Explain.
Answer:
Step-by-step explanation:
It's less than because if u use the calculator with√10 it will show 3.162277660168 which is less than 5
What is the value of T in this exterior angle
Answer:
t =30
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the opposite interior angles.
t + (2t-28) = t+32
Combine like terms
3t -28 = t+32
Subtract t from each side
3t -28-t = t+32-t
2t -28 = 32
Add 28 to each side
2t-28+28 = 32+28
2t = 60
Divide by 2
2t/2 = 60/2
t =30
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Exterior Angle of a triangle is equal to the sum of two opposite interior angles of the same triangle, so
[tex]t + 32 = t + 2t - 28[/tex][tex]t + 32 = 3t - 28[/tex][tex]3t - t = 32 + 28[/tex][tex]2t = 60[/tex][tex]t = 30 \degree[/tex]value of t = 30°
Two numbers multiply to be 6 and add to be 5. What are the numbers?
Answer:
The numbers are 2 and 3.
Step-by-step explanation:
Answer:
3 and 2
Step-by-step explanation:
3 x 2= 6
3+2=5
Please solve this for me.
Answer:
DG = 7z - 5
Step-by-step explanation:
In order to find DG, you add DE and GE.
Plz help it’s due tonight!!!
A bike shop sells bikes for $155 each and scooters for $65 each. Write an equation to represent the cost of 2 scooters and x number of bikes.
Someone help me please.
Answer:
c
Step-by-step explanation:
I hope this helps
If marked price = $1700, selling price = $1540 Then find the discount?
Answer:
1700-1540=160
Answer:
1700-1540=160
mp=160/1540*1700
17'1630
what is the slope of all lines parallel to the line 4x-5y+-1?
a -5/4
b 5/4
c-1/5
d4/5
Given equation of the line ,
[tex]\implies 4x - 5y +(-1) = 0 [/tex]
Simplify ,
[tex]\implies 4x - 5y - 1 = 0 [/tex]
Transpose terms to RHS ,
[tex]\implies 5y = 4x - 1 [/tex]
Divide both sides by 5 ,
[tex]\implies \boxed{ y =\dfrac{4}{5}x -\dfrac{1}{5}}[/tex]
Now we know the slope intercept form of the line as [tex] y = mx + c [/tex] we have ,
[tex] m =\dfrac{4}{5}[/tex]As we know that the slope of all parallel lines are same . Henceforth ,
[tex] m_{|| \ lines } =\dfrac{4}{5}[/tex]Which of the following makes sense as an answer to 8.9 *7.15
Answer:
so whats the answer
Step-by-step explanation:
What is the inverse of the statements below? 100 POINTS
1. If a number is divisible by 4, then it is divisible by 2
2. All whole numbers are integers
1) If a number is multiplied by 4 then it is multiplied by 2
2) All numbers below zero are negative numbers
Hope this helped you- have a good day bro cya)
Find the y-intercept and the slope of the line.
- 7x - 4y = -20
Answer:
y int.=5
slope=-7/4
Step-by-step explanation:
-7x-4y=-20
+7x +7x
-4y=7x-20
/-4 /-4 /-4
y=-7/4x+5
I need a equation written for this pleeeeeaaaassse! The constant of proportionality is 2.
but I need an equation for this, I have an attachment for you to help.
Answer:
Step-by-step explanation:
g=c
Answer:
The number of cupcakes are twice the number of guests.
g * 2 = c
I hope this helps you
Pls solve the right way then I’ll give you 15pts
Answer:
x=27
Step-by-step explanation:
Aight so the angle of line AB equals 180 degrees. You have 36 degrees plus the right angle (90 degrees) which gets you 126 degrees. Subtract 126 from 180 and you get 54, the remaining value. So if 2x=54, then divide both sides by 2 to get x=27. that should be it
(2a-1)(2a-1)-(2a+3)(2a+3)
Answer:
-16a-8
Step-by-step explanation:
(
2
−
1
)
(
2
−
1
)
−
(
2
+
3
)
(
2
+
3
)
{\color{#c92786}{(2a-1)(2a-1)}}-(2a+3)(2a+3)
(2a−1)(2a−1)−(2a+3)(2a+3)
2
(
2
−
1
)
−
1
(
2
−
1
)
−
(
2
+
3
)
(
2
+
3
)
Answer:
− 1 6 − 8
Step-by-step explanation:
C: Joe is a waiter.
Last night he made
$37 in fips and
makes $8.50 per
hour. How much did
he make after his 8
hour shift?
Answer:
8x8.5 +37
68+37 = 105
$105 dollars for an 8 hour shift
$68 salary + $37 tips = $105
Answer:
total wage in 8 hrs = $105
Step-by-step explanation:
37 + (8 * 85) = 37 + 68 = $105 we simply do the maths without decimal then place on the 10's =(8 * 85) = 680 = $68 then add the $37 = $105
What is the measure of angle ABE?
Please provide an explanation to your answer, thank you.
Answer:
50°
Step-by-step explanation:
According to the vertical angle theorem, two opposite vertical angles formed when two lines intersect each other are always equal (congruent) to each other.
This would mean CBD is equal to ABE which means ABE would be 50°.
please help me!
x-7>10
x>__?
Answer:
[tex]x>17[/tex]
Step-by-step explanation:
We can treat an inequality just the same as an equality in terms of manipulation!(This doesn't hold for multiplying or dividing by negative numbers, but it holds for all addition).
So, we can add [tex]7[/tex] to both sides of the inequality to get [tex]x-7+7>10+7[/tex].
We can simplify [tex]-7+7[/tex] into [tex]0[/tex], and [tex]10+7[/tex] into [tex]17[/tex].
So, the answer is [tex]\boxed{x>17}[/tex] and we're done!
5. For which value of x is line 1 parallel to line m? (1 point)
Answer: 62
Step-by-step explanation: you set up the equation by making the two sums equal eachother. 2x+6=130. then you solve, subtract six from both sides, then you have 2x=124. divide both sides by 2 to get the sum of x. you get x=62
Dr. Reyes is examining whether exercise is linked to mood. She recruits a sample of college students and asks them to answer whether they exercised at least three times last week (yes or no) and to rate their mood in the last week (1: Not happy at all to 5: Very happy). Her results show that students who exercised in the last week also reported happier moods. Can Dr. Reyes make a causal inference from her study
The answer to whether Dr. Reyes can make a causal inference from the study is;
No, she can't make a casual inference from the study because she met only one of the three criteria's for causality.
To answer this question, we need to know the conditions for causality in statistics research because causality gives the relationships such that a change in one variable would have to result in a change in another variable.
Now, the three conditions are;
1) Covariation; This condition means that the causal variable must have to vary with with the variable it is assumed to cause in a systematic manner.
2) Temporal precedence; Thus condition simply means that cause must precede effect. In summary it denotes that the variable that has the causal effect must come before the effect that it is meant to cause.
3) Control for extraneous variables; This condition means that results of an experiment or research must not be due to factors outside of the experiment/research
Now, in our question, he fulfilled the covariation condition because the
result of the research is tied to the responses from the sample students.
However, she did not fulfill the temporal precedence because the cause of
their moods did not precede the effects in his research.
Also, she did not fulfill the condition of control of extraneous variables
because other factors outside of the research itself may have affected their
moods.
Read more at; https://brainly.com/question/10811163
Using Bing Maps, on the upper right hand corner click on STREET SIDE.
From ANY US CITY TO ANOTHER US CITY. Use at least 25 points or more.
Answer:
The penalty for not voting in New South Wales is a $55 fine. You must respond within 28 days of the issue date of the notice. You will have four options: If you voted, you can provide details of where and when using our non-voter self-service portal.
I need help pls tyvm :)
Answer:
16. C
17. B
Step-by-step explanation:
All you have to do is plug in the numbers into the pythagorean theorem. The Pythagorean Theorem is: [tex]a^2+b^2=c^2[/tex] Now I encourage you to try these problems out for yourself and see why they're correct. Doing these will help you solve other propblems like this. Remember the hypotenuse is alays the longest side. ;)
Help I’ll give brainlest
Answer:
A: 42°
B: 42°
F: 96°
Can you give me brainlest now pls
Mary buys hamburger buns in packs of 8 for $3. Mary has only $30 to spend. How many packs
of hamburger buns can she buy?
answer:
10 packs
Step-by-step explanation:
just do 30/3 and you get the answer!!!
:)
Answer:she can buy 10 packs of hamburger buns of 8 for $3
Step-by-step explanation:
PLEASE HELP I WILL GIVE BRAINLIEST
Answer:
The answer is D
Step-by-step explanation:
multiply by reciprocal
11 3 ×3 4 1 =
Help please
Answer:
Exact Form:
77/ 3
Decimal Form:
25.6
Mixed Number Form:
25 2/3
Step-by-step explanation:
the thing is 11/3 times 3 4/1
solve this equation x/4-20=-12
Answer:
X=32
Step-by-step explanation:
First Find common denominator
Combine fractions with common denominator
Multiply the numbers
Multiply all terms by the same value to eliminate
And I think you got it from there :))))))))))))))
Answer:
x = 32
Step-by-step explanation:
Find a common denominator
x/4 + 4 ( -20 )/4 = -12
Combine fractions with denominator
Multiply the numbers
Multiply all terms by the same value to eliminate fraction denominators
Cancel multiplied terms that are in the denominator
Multiply the numbers
Add 80 to both sides of the equation
Then simplify!