Answer:
ok, and?
Step-by-step explanation:
Regina’s teacher recently gave her a homework assignment on solving equations. Since she has been thinking about saving for a new cell phone, she decided to use the assignment as an opportunity to model a savings plan.
She created this equation to model the situation. In it, y represents the total amount saved for the new cell phone, 74 is the amount of money she has now, 40 is the amount of money she saves each month for the phone, and x represents the number of months since she started saving a regular amount:
74 + 40x = y.
She then solved the equation to determine how many months she’d need to save to have enough to purchase the new cell phone. Review her work, and select the error.
Answer:
The answer is 4.
Step-by-step explanation:
In her solution, there is an error in step 4. She used the multiplication property of equality but its a division property.
Given that,
A solution is given, we have to review the solution and mark the steps that contain an error.
In mathematics, it deals with numbers of operations according to the statements.
Here,
In the solution, every step is accurate and correct, except for step 4. she divided the equality by 40 and she wrote the step as multiplication property of equality which is wrong the correct statement for step 4 is the division property of equality.
Thus, in her solution, there is an error in step 4. She used the multiplication property of equality but its a division property.
Learn more about arithmetic here:
brainly.com/question/14753192
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So who wants to help mehhhhh
Answer:
I will
Step-by-step explanation:
Naomi and Claire are painting a mural. Naomi paints 2 square feet per hour and has already painted 16.5 square feet.
Claire paints 4 square feet per hour and has already painted 7.5 square feet.
How many more hours will it take for Naomi and Claire to paint an equal total number of square feet?
Answer:
4 hours
Step-by-step explanation:
16.5+x2
7.5+x4
16.5+2=17.5+2=19.5+2=21.5+2=23.5
7.5+4=11.5+4=15.5+4=19.5+4=23.5
PLEEEEEEEEEEEEEEEASE HELP ME WITH THIS! IT IS DUE TOMORROW!!
Answer: This can help you step by step
Step-by-step explanation:
Which of the following number is between 5 and 10 on a number line
[tex] \sqrt{44} [/tex]
[tex] \sqrt{38} [/tex]
[tex] \sqrt{21} [/tex]
[tex] \sqrt{6} [/tex]
[tex] - \sqrt{59} [/tex]
[tex] - \sqrt{8} [/tex]
Answer:
first second and fifth are the answers
4. Which expression is equivalent to x 2+ 5x – 24?
(1) (x + 3)(x – 8) (3) (x – 3)(x + 8)
(2) (x – 2)(x + 12) (4) (x + 2)(x – 12)
Answer:
4
Step-by-step explanation:
when you went to bed the temperature was -5.5 it fell 3.4 degrees overnight what is the temperature now
Answer:
-2.1
Step-by-step explanation:
3.4 minus -5.5
3x - 9(x-2) = 18x + 30
2. Solve the system by substitution. (1 point)
2x – y + z = -4
z = 5
-2x + 3y - 2 = -10
O(-8,7,5)
O(-8. -7,5)
O(8, -7,5)
O(-8, -7,-5)
Answer:
Answer for this one is second one (-8,-7,5)
Step-by-step explanation:
Hope it will help you :)
Alan drive 210 miles using 9 gallons of gas. At this rate,how many gallons of gas would he need to drive 413 miles?
Answer:
9636.66666665,or, 9637
Step-by-step explanation:
Convert the following fraction to a decimal: ⅖ *
Ok this is my last math question so help me out here
Answer:
its 6
Step-by-step explanation:
Evaluate the function, f(x) = 3x + 1, for f -2/3
3
7
-1
-5/9
Answer:
To find the inverse, interchange the variables and solve for3/7 = ?/35 find the unknown value in the proportion.Round to the nearest tenth if needed.
Answer:
15
Step-by-step explanation:
multiply 7 by 5 to get 35. multiply 3 by 5 and get 15.
Answer:
15
Step-by-step explanation:
3/7=?/35
cross multiply
7?=35*3
?=35*3/7
?=5*3
?=15
WILL GIVE BRAINLIST
Samuel drove 28 miles in 32 minutes. Beverly drove 42 miles in 48 minutes.
Are the ratios of miles to minutes for Samuel and Beverly proportional?
Drag and drop to correctly complete the statement.
= Ratio of minutes to miles in which Samuel drove = 28 : 32
= Ratio of minutes to miles in which Beverly drove = 42 : 48
To find whether the time they drove and the distance they covered were proportional or not , let us first change them into a fraction and then simplify them .
= 28 : 32 = 28/32
= 28/32
Both the numerator and the denominator is divisible by 4 .
= 28 ÷ 4 / 32 ÷ 4
= 7/8 = 7 : 8
Samuel = 7 : 8
Beverly = 42 : 48 = 42/48
= 42/48
Both the numerator and the denominator is divisible by 6 .
= 42 ÷ 6 / 48 ÷ 6
= 7/8
Therefore, the ratio of miles to minutes drove by Samuel and Beverly is proportional , 7:8 :: 7:8
Answer:
7:8 7:8
Step-by-step explanation:
if you subtract 28 from 42 and subtract 32 from 48 then you get 14-16. then double it and you get 28-32 then add 14-16 to those again and you get 42-48. because they add up and are equal, take 14-16 and simplify it to 7:8.
A large bag of peanuts weighs 2.25 pounds. How many ounces of peanuts are in the bag?
Answer:
36 ounces
Step-by-step explanation:
There are 16 ounces in a pound so what you have to do is multiply, here's what the equation could look like.
2.25 x 16 = 36
Hope that helps and have a great day!
Solve for X
please & thank you
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
I need to know the missing angles
Answer:
71
Step-by-step explanation: 2x=142
x=71
Answer:
the missing angles are 71
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
142° is an exterior angle of the triangle, thus
x + x = 142
2x = 142 ( divide both sides by 2 )
x = 71
If Mark takes 7 hours to paint a house and Hanna takes 5 hours to paint the same house, how much time will it take both of them to paint the house? Please explain!
Answer:
2 hours and 42 minutes
Step-by-step explanation:
we can see that both people are painting the same house, however 1 person goes faster than the other one
lets start by putting our numbers into fractions then finding a like value. 35 in this case. 1/7 equals 5/35 and 1/5 equals 7/35 now we add these together and get 13/35. our next step is to flip this to 35/13 and take put any whole numbers. in this case 2 whole numbers can be made
leaving
9/13
(0.69)
converting this to minutes is 42 minutes.
Simplify the expression.
(7x4)?
(7x4)2 =
Answer:
14
Step-by-step explanation:
i took the test
Sarah and Henry share some sweets in the ratio 7:6 . Sarah eats 12 of her sweets and the ratio of sweets left becomes 1:2 . How many sweets did Henry have?
please help, 20 points !!
What is the relationship between Angle 2 and Angle 7?
Answer:
they are the same
Step-by-step explanation:
they are not diffrent because its that same
Answer:
They are alternate interior angles.
MARK ME BRAINLIEST!!
Two measures are complementary. If Angle 1 is 43 degrees and Angle 2 is (x-7) degrees, what is the value of x? Thanks!
Answer:
x = 54
Step-by-step explanation:
43 + x - 7 = 90
36 + x = 90
x = 54
Use deductive reasoning to show that the two triangles are congruent. given that fab is congruent to ged and c is the midpoint of ae prove that abc is congruent to edc
Answer:
ΔABC is congruent to ΔEDC by the Angle-Side-Angle congruency rule
Step-by-step explanation:
The
Statement [tex]{}[/tex] Reason
∠FAB ≅ ∠GED [tex]{}[/tex] Given
C = Midpoint of [tex]\overline {AE}[/tex] [tex]{}[/tex] Given
∠BAC and ∠FAB are supplementary Angles on a straight line
∠DEC and ∠GED are supplementary Angles on a straight line
∠BAC ≅ ∠DEC [tex]{}[/tex] Transitive property
[tex]\overline {AC}[/tex] ≅ [tex]\overline {CE}[/tex] [tex]{}[/tex] Definition of midpoint
ΔABC ≅ ΔEDC [tex]{}[/tex] ASA congruency rule
Where two angles and an included side of one triangle is congruent to the corresponding two angles and an included side of another triangle, both triangles are congruent. [tex]{}[/tex]
Which numbers are irrational?
144 , 15 , 81 , 54
15 and 54 are irrational.
HELLLLPPPPP two questions: AND I WILL GIVE YA THE BRAINLIESTTTTT
question one: Marcos mixes 434 oz of lemonade. he wants to filll the 14 cups he has with equal amounts of lemonade.
How many lemonade should he put in each cup?
Marcos should put_____ ounces in each cup.
Question 2: Kainoa collects trading cards. he has 1,005 baseball cards, 702 basketball cards, and 885 football cards. And he wants to put them all in albums. Each page holds 18 cards.
How many pages will he need to hold all of his cards?
Kainoa will need_____ pages.
Answer:
First one 31 oz
Second one 144 pages
Step-by-step explanation:
First one
Divide 434 by 14 (434/14) to get how many oz in a cup since its 14 oz per cup and he has 434 oz
Second one
Add up all the cards since it says "all of his cards" (2592) and divide it by 18 since each page holds 18 cards
Anyone know how to do??
Answer:
30°
Step-by-step explanation:
Step 1:
2x + 10 + 4x + 80 = 180 Sum of a line
Step 2:
6x + 90 = 180 Combine Like Terms
Step 3:
6x = 90 Subtract 90 on both sides
Answer:
x = 30° Divide
Hope This Helps :)
55 in feet and inches
Answer:
1 foot 8 inches
Step-by-step explanation:
Can someone give me an idea for a blog for class. I need a topic about things going on in the world
Answer:
I think a great one would be about Corona virus but if you dont
want to do that one another one could be population increase.
Hope this helps!
The quotation of 3÷3/4=?
A. 3
B. 4
C. 9
D. 12
Answer: B. 4
Hope this helps you!