A washing machine is filling up with water at a constant rate. The rate is 3/4 of a gallon in 1/5 of a minute. Don calculated the unit rate to be 3/20 of a gallon per minute. what did he do wrong?​

Answer: you have to see how many gallons fill the container per minute, so take 3/4 and divide it by 1/5, which gives 15/4. So he multiplied the two numbers instead of dividing.

Step-by-step explanation:

Answer:

[tex]\frac{15}{4}[/tex] gallon per minute

Step-by-step explanation:

Given parameters:

Quantity of gallon = [tex]\frac{3}{4}[/tex] gallon

Time taken  = [tex]\frac{1}{5}[/tex] min

Unknown:

The solution is [tex]\frac{3}{20}[/tex] gallon per minute, what did he do wrong = ?

Solution:

To find the rate:

   Rate  = [tex]\frac{Quantity of gallon}{time }[/tex]

 Input the parameters and solve

  Rate  = [tex]\frac{\frac{3}{4} }{\frac{1}{5} }[/tex]   = [tex]\frac{3}{4}[/tex]  ÷ [tex]\frac{1}{5}[/tex]

                       Invert the [tex]\frac{1}{5}[/tex]  to give 5

                  =  [tex]\frac{3}{4}[/tex] x 5

                  = [tex]\frac{15}{4}[/tex] gallon per minute

The student failed to invert the [tex]\frac{1}{5}[/tex] before multiplying with  [tex]\frac{3}{4}[/tex]

What unit of metric of length is used in the machine manufacturing industry? for brainliest

Question 2 (5 points)
(07.02)
Simplify (3x - 5) + (3x + 6). (1 point)
Оа
бx - 1
Oь
1
Ос
бx - 11
Od
бx + 1

find the perimeter of an equilateral triangle with side 8 ​

Item 11 You buy 2.6 pounds of apples and 1.475 pounds of peaches. You hand the cashier a $20 bill. How much change will you receive? You will receive $ change.

Which student correctly translated the phrase "twice the sum of a number cubed and nine" and evaluated it for r = 3?
Antonio's work Jessica's work Maria's work Mark's work
2(r + 9)
2(r+ 9) 2+p3 +9 2 + 3r + 9
2(3 + 9)
2(3' + 9)
2 + 3² +9 2 + 3(3) +9
O
2(9+ 9)
2(27+ 9) 2 + 27 + 9
2 + 9 + 9
2(18)
2(36)
29 + 9
11 + 9
36
(72
38
20
O

Which equation represents an exponential function with an initial value of 500?
f(x) = 100(5)
f(x) = 100(x)5
f(x) = 500(2)
f(x) = 500(x)2
ОО

which is true regardless the graphed function f(x)​

please help important!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Sam counted his heartbeats while resting. His heart beat 220 times in 4 minutes. Sam's heart beat at the same rate for the 4 minutes. Complete the ratio of beats to minutes.

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What is the approximate percent increase when the population of a town increases from 12,089 to 15,025? Round the population amounts to the nearest thousand to find an estimate of the percent increase.
The percent increase is approximately 10%.
The percent increase is approximately 25%.
The percent increase is approximately 33%.
The percent increase is approximately 80%.

Step 1: m∠x + m∠y + m∠z = 180 degrees (sum of angles of a triangle) Step 2: m∠w − m∠z = 90 degrees (corresponding angles) Step 3: Therefore, m∠x + m∠y + m∠z = m∠w + m∠z Step 4: So, m∠x + m∠y = m∠w

Solve for r.
19.72 = 4r

3
What is the approximate
distance between points
(-7, 2) and (11,-5)?
a) 18.36 units
b) 19.31 units
c) 18.25 units
d) 10.31 units
e) 8.06 units

Use algebra titles to solve x + 7 = 9.

Plssss help me :( ASAP

If $a$ is the $x$-intercept, $b$ is the $y$-intercept, and $m$ is the slope of the line with equation $\frac{x}4 + \frac{y}{12} = 1$, then what is the value of $a + b + m$?

Select the correct answer. Given: ∆ABC Prove: A midsegment of ∆ABC is parallel to a side of ∆ABC. Statement Reason 1. Define the vertices of ∆ABC to have unique points A(x1, y1), B(x2, y2), and C(x3, y3). given 2. Let D be the midpoint of and E be the midpoint of . defining midpoints 3. definition of midpoints 4. slope of slope of definition of slope 5. slope of = slope of Transitive Property of Equality 6. definition of parallel lines 7. Let F be the midpoint of . defining a midpoint 8. definition of midpoint 9. slope of slope of definition of slope 10. 11. definition of parallel lines 12. Similarly, is parallel to . steps similar to steps 1−11 What is the missing step in this proof? A. Statement: slope of = slope of Reason: definition of slope B. Statement: slope of = slope of Reason: Transitive Property of Equality C. Statement: DF = BC Reason: Corresponding sides of congruent triangles are congruent. D. Statement: ∆ADF ≅ ∆ABC Reason: ASA

Fairly easy question




What is the solution to this system of equations?
x − 2y = 15
2x + 4y = -18
A.
x = 1, y = -6
B.
x = 1, y = -7
C.
x = 3, y = -6
D.
x = 3, y = -7

(4+5)(4-51) =
please help i don’t feel like doing math rn

Find The Value Of X When 6-2x = 6x-10x+6. The Value Is

Why is the value of a substance’s specific gravity always the same numerically as its density?
HELP ME PLEASE!!!
Because it is always the substance’s density divided by the density of water which is 1 g/cm 3
Because it is always the substance’s density multiplied by the density of water which is 1 g/cm 3
Because specific gravity is the inverse of density
Because these represent the same measurement

-1 2/7 + 4 i really need to answer this.

PLZ HELP
A student writes an incorrect step while checking if the sum of the measures of the two remote interior angles of triangle ABC below is equal to the measure of the exterior angle.

Step 1: m∠m + m∠n + m∠o = 180 degrees (sum of angles of a triangle)
Step 2: m∠p − m∠o = 90 degrees (alternate interior angles)
Step 3: Therefore, m∠m + m∠n + m∠o = m∠o + m∠p
Step 4: So, m∠m + m∠n = m∠p

In which step did the student first make a mistake and how can it be corrected? (4 points)

a
Step 1; it should be m∠m + m∠n + m∠o = 90 degrees (corresponding angles)

b
Step 1; it should be m∠m + m∠n + m∠o = 90 degrees (adjacent angles)

c
Step 2; it should be m∠o + m∠p = 180 degrees (alternate exterior angles)

d
Step 2; it should be m∠o + m∠p = 180 degrees (supplementary angles)

I think its c

Candice paid her parents $45 for rent and divided the rest of her paycheck evenly into a checking account,a savings account,and a retirement fund.She put $192 in her savings account
A.Write an equation to represent the situation



B.How much was Candice paid

Which of the following lines is perpendicular to the equation given below?

y = -2x + 8


2x + y = 4
2x + y = 4

x - 2y = 6
x - 2y = 6

2x - y = 1
2x - y = 1

x + 2y = 8

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​

What is 3x+7x=9-18? Math is confusing once you get into 7th grade.

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