Answer:
48.76%
Step-by-step explanation:
Here is the complete question;
A brand of cereal had 1.21milligrams of iron per serving. Then they changed their recipe so they had 1.8mg of iron per serving. What was the percent increase in iron?
Given
Initial amount of iron in cereal per serving = 1.21mg
final amount of iron in cereal per serving =1.8mg
Required
Percentage increase in iron
Increment = 1.8mg - 1.21mg
Increment = 0.59mg
% increase in iron = increment/original amount * 100%
% increase in iron = 0.59/1.21 * 100
% increase in iron = 0.4876 * 100
% increase in iron = 48.76%
Hence the percent increase in iron is 48.76%
can i please get some help
Answer: number 5 is A number 6 is B
Step-by-step explanation:
What is the slope-intercept form
equation of the line that passes
through (1.3) and (3, 7)? (5
points)
Answer:
y=2x+1
Step-by-step explanation:
The denominators of a fraction is r more than the numerator. If the numerator is increased by 2 and the denominator is increased by 5 , the fraction obtained is 5/12 . Find the fraction
Answer:
please correct your question
Please help me thank you so much Whoever is
Answer:
1. 96 tennis balls
2. 96 dollars
3. 18 dollars
Step-by-step explanation:
find the x and y intercept
y+5=2(x+1)
Answer:
X-Intercept= (1.5,0)
Y-Intercept= (0,-3)
Step-by-step explanation:
In 1974 a mother was 6 times as old as her daughter. If the mother turned 50 in the year 2000, in what year was the mother double her daughter’s age?
This is in the topic of linear equations and please provide an explanation. (The working out)
Answer:
1990
Step-by-step explanation:
Since the mother was 50 years old in 2000, she was 50 - (2000-1974) = 50 - 26 = 24 years old in 1974.
Hence, the daughter was 24/6 = 4 years old in 1974.
In "x" years after 1974, the daughter will be 4+x years old, while the mother will be 24+x years old.
We need to find "x" from the equation
2(4 + x) = 24+x.
8 + 2x = 24 + x,
x = 24 - 8 = 16.
1974 + 16 = 1990.
Answer In 1990 the mother doubles her daughter's age
Check In 1990 mother's age is/was 24 + 16 = 40 years.
In 1990 the daughter's age is/was 4 + 16 = 20 years.
Does any one know the answer?
Answer:
D is the answer (31.05)
Step-by-step explanation:
2.07×15 is 31.05
Nina can type 124 words in 4 minutes.at this rate how many words can nina type in an hour
Answer:
1,860
Step-by-step explanation:
FIRST:
we divide 124 by 4 because in 4 minutes he can type 124 words, and we need to figure out how many he can type in a minute.
124 divided by 4 is 31. (they can type 31 wpm)
NEXT: now we know they can type 31 wpm, we need to multiply that number by 60 because there are 60 minutes in an hour.
31 x 60 = 1,860
therefore, they can type 1860 words per hour
hope i helped have a great day/night! :'')
Simplify the expression
Answer:
f(y) = y g(y) = y - 6Step-by-step explanation:
[tex]\dfrac{y^2+6y}{y^2-36}\qquad\qquad\qquad\qquad y\ne6\,,y\ne-6 \\\\ \\\dfrac{y^2+6y}{y^2-36}=\dfrac{y\cdot y+6\cdot y}{y^2-6^2}=\dfrac{y(y+6)}{(y+6)(y-6)}=\dfrac{y}{(y-6)}\\\\\\f(y)=y\\\\g(y)=y-6[/tex]
Can someone explain how to get the right answer thx
Answer:
x = 20
Step-by-step explanation:
These two angles are equal:
5x + 7 = 6x - 13
Subtract 5x from both sides.
7 = x - 13
Add 13 to both sides.
20 = x
I hope this was helpful to you! If it was, please consider rating, pressing thanks, and marking my answer as 'Brainliest.' It would help a lot. Have a wonderful day.
I need help please help
Answer:
3/4
Step-by-step explanation:
6/8 = 3/4
Find the solutions of (x – 4)(x – 4) = 0.
Question 4 options:
A)
x = –4
B)
x = 4, –4
C)
x = 0
D)
x = 4
Answer:
Step-by-step explanation:
(x – 4)(x – 4) = 0.
So factor are x-4=0
X=4 (D) is the answer
Which of the following equations is correct? select three that apply
A) 0.12 = 4/33
B) 0.4 = 2/5
C) 0.54 = 6/11
D) 0.7 = 7/9
E) 0.83 = 5/6
F) 0.91 = 41/45
Answer:b,e,f
Step-by-step explanation:
The correct equations are:
B) 0.4 = 2/5
D) 0.7 = 7/9
E) 0.83 = 5/6
To determine which of the following equations is correct, we need to compare each decimal value to its equivalent fraction. Here are the correct equations:
B) 0.4 = 2/5
D) 0.7 = 7/9
E) 0.83 = 5/6
B) 0.4 is equivalent to 2/5 because 0.4 means 4 tenths, and 2/5 also represents 4 tenths (2 parts out of 5).
D) 0.7 is equivalent to 7/9 because 0.7 means 7 tenths, and 7/9 also represents 7 tenths (7 parts out of 9).
E) 0.83 is equivalent to 5/6 because 0.83 means 83 hundredths, and 5/6 also represents 83 hundredths (5 parts out of 6).
The remaining options (A, C, and F) are not correct as their decimal values do not match their corresponding fractions.
To know more about equations:
https://brainly.com/question/33622350
#SPJ6
The graph models the projected populations, in thousands, of two towns after x years. Both towns experience a 1.9% annual growth rate.
whats the question
?
7 + y = 5(2y – 1) + 3y
Answer:
y = 1
Step-by-step explanation:
Given
7 + y = 5(2y - 1) + 3y ← distribute and simplify right side
7 + y = 10y - 5 + 3y
7 + y = 13y - 5 ( subtract y from both sides )
7 = 12y - 5 ( add 5 to both sides )
12 = 12y ( divide both sides by 12 )
1 = y
If the figure below are similar with a scale factor of 2:3, find the value of x.
Answer x=63
Step-by-step explanation:
5xy-x2t+2xy+3x2t asap
Answer:
7xy + 2x²t
Explanation:
5xy - x²t + 2xy + 3x²t
= (5xy + 2xy) + (3x²t - x²t)
= 7xy + 2x²t
Find the slope of the line passing through the points (-5, 7) and (-7, 1).
Answer:
[tex]m=3[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (-5, 7)
Point (-7, 1)
Step 2: Find slope m
Substitute: [tex]m=\frac{1-7}{-7+5}[/tex]Subtract/Add: [tex]m=\frac{-6}{-2}[/tex]Divide: [tex]m=3[/tex]And we have our final answer!
a number y plus 2.4 is less than or equal to 35. Write the sentence as an inequality.
Answer:
y + 2.4 ≤ 35
Step-by-step explanation:
Less than or equal to sign is ≤
The sentence can be represented by the inequality:
y + 2.4 ≤ 35
Subtract 2.4 from both sides
y + 2.4 - 2.4 ≤ 35 -2.4
y ≤ 35 - 2.4
y ≤ 32.6
Therefore, y is less than or equal to 32.6
I just need some quick help with this. Distributive properties aren't my best section.
Describe how you would use the distributive property to simplify (39x5).
I will give brainliest to the person who does this first
1. 8a+24
2. .12e
ill edit it when get the other answers
Brainiest? pls
What is the answer to -3(4r-8)=-36
Answer:
r = 5
Step-by-step explanation:
l
Answer:
r = 5
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
−3(4r−8)=−36
(−3)(4r)+(−3)(−8)=−36(Distribute)
−12r+24=−36
Step 2: Subtract 24 from both sides.
−12r+24−24=−36−24
−12r=−60
Step 3: Divide both sides by -12.
−12r = −60
-12 -12
r=5
Hope this helped! :)
Have great day!
An airplane is preparing to land at an airport. It is 41,300 feet above the ground and is descending at the rate of 3,100 feet per minute. At the same airport, another airplane is taking off and will ascend at the rate of 2,800 feet per minute. When will the two airplanes be at the same altitude and what will that altitude be? Use pencil and paper. Use two other methods to solve the problem. Explain which methods are easier to use and which are more difficult to use for the situation.
9514 1404 393
Answer:
after 7 minutes19,600 feetStep-by-step explanation:
Here's the "pencil and paper" solution:
The two altitude equations are ...
y = 41300 -3100xy = 2800xThey can be solved by setting the expressions for y equal to each other.
2800x = 41300 -3100x
5900x = 41300
x = 41300/5900 = 7
y = 2800·7 = 19600
The planes will both be at 19,600 feet after 7 minutes.
_____
Attached are solutions from a graphing calculator, and from a calculator app that is able to solve systems of equations.
I find the graphing calculator the easiest to use. I can enter equations using a keyboard, and the solution is displayed in a form that can be copied and pasted.
The calculator app on my phone requires equation entry using a small on-screen keyboard, with multiple key hits required to access some functions. (y is obtained by hitting the x key twice, for example.)
The "pencil and paper" solution is not so difficult, but requires a certain amount of writing (or good short-term memory). The solutions for x and y require separate calculations, whereas the other methods give both x and y at the same time.
Factoring trinomials
Select two for each
Answer:
1. (x + 3) , (x + 4)
2. (x + 5) , (x - 2)
Step-by-step explanation:
1) ( x + 3 ) ( x + 4 )
2) ( x - 2 ) ( x + 5)
hope this helps
I NEED HELP can someone find the slope from these equations
Answer:
[tex] \underline{\boxed{if \: y = 2x + \frac{2}{3} \to \: the \: slope\to \boxed{m = 2} }}\\ \underline{\boxed{if \: y = - \frac{1}{2} x - 3 \to \: the \: slope\to \boxed{m = - \frac{1}{2} } }}\\ \underline{\boxed{ if \: y = \frac{2}{3} x\to \: the \: slope\to \boxed{m = \frac{2}{3} }}}\\ [/tex]
show work / explain it
simple question just answer correctly to get brainleist and 10 pts! :)
Answer:
c is the answer
Step-by-step explanation:
Which expression is equivalent to 6x6 + 12x + 5 ?
A.(2x+1)(3x+5)
B.(2x+5)(3x-1)
C.(2x-1)(3x-5
D.(2x-5)(3x-1)
Answer:
Step-by-step explanation:
None of these are correct. Is the equation 6x^6+12x+5 correct?
7/3*+1/3=4+5/3x this is a test pls helppp
Answer:
I am sorry. To answer a test is against the Honor Code, I cannot help you.
Step-by-step explanation:
Remember PEMDAS :)
Answer:
2.125
Step-by-step explanation:
A student has some $1 and $5 bills in his wallet. he has a total of 15 bills that are worth $51. How much of each type of bill does he have?
Answer:
# of 5 dollar bills: 9
# of 1 dollar bills: 6
Step-by-step explanation:
9•5 = 45
1•6 = 6
To Check: 45 + 6=51
