The value of the numerical expression {[(30 − 60) ÷ (−30)]² − 15} ÷ (−7) will be 2.
What is the value of the expression?When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.
The expression is given below.
⇒ {[(30 − 60) ÷ (−30)]² − 15} ÷ (−7)
Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction are all part of the PEMDAS formula. To answer the problem properly and accurately, this rule must be followed.
⇒ {[(30 − 60) ÷ (−30)]² − 15} ÷ (−7)
⇒ {[(−30) ÷ (−30)]² − 15} ÷ (−7)
⇒ {[1]² − 15} ÷ (−7)
⇒ {1 − 15} ÷ (−7)
⇒ (−14) ÷ (−7)
⇒ 2
The value of the numerical expression {[(30 − 60) ÷ (−30)]² − 15} ÷ (−7) will be 2.
More about the value of the expression link is given below.
brainly.com/question/23671908
#SPJ5
Round 607.5 to the nearest whole number.
Answer:
608
Step-by-step explanation:
607.5 on a number line would be round 608
because 5 is rounded to 10 like that
Apply sam technique
Given the graph of a proportional relationship, if the (2,7) lies on the graph, what is the value of k? What is the equation of the line?
Answer:
k=3.5, and y=3.5x is the equation of the line
Step-by-step explanation:
y and x are proportional means that y = kx for some constant k.
Thus, when y=7 and x=2, we have that 7 = k * 2, so that k = 7/2 = 3.5,
and the equation of the line is y = 3.5x
The area of the trapezium is 27.5 cm^2 work out the value of y
Follow up on the attachment, ask for clarification if you don't get it
y=8cm
1111111111111111111111111111111111111111111111freepoints
Answer:
thank youuuuuu
Step-by-step explanation:
Answer:
thank
Step-by-step explanation:
como se redondea un número a la unidad
The value of y varies directly with x. If x = 195 when y = 15, what is the value of x when y = 9?
Since the value of y varies directly with x, the value of x when y equals 9 is [tex]\frac{9}{13}[/tex]
Given the following data:
x = 195y = 15To find the value of x when y = 9:
This is a direction proportion exercise and you're required to solve for the value of x when the value of y is equal to 9.
First of all, we would determine the constant of proportionality (k) for the mathematical expression.
[tex]y = kx\\\\15 = 195k\\\\k = \frac{195}{15}[/tex]
k = 13
Now, we can find x:
[tex]y = kx\\\\9 = 13x\\\\x = \frac{9}{13}[/tex]
Therefore, the value of x when y equals 9 is [tex]\frac{9}{13}[/tex]
Read more: https://brainly.com/question/24828148?referrer=searchResults
what is the equivalent of 5y+9/8=y-1/4+4
Answer: the answer is 21/32 and it is equivalent to 0.65625.
Step-by-step explanation:
PLEASE HELP ME ITS ALGEBRA THANKSSSS
Answer:
24 kg
Step-by-step explanation:
21 kg every 7 hr
21kg/7hr = 3kg/hr
This means he prepares 3 kg of dough every hour.
After working 8 hours, he would have prepared (3kg)(8) = 24kg of dough
Identify the unit rate in the graph.
A. 40mph
B. 75mph
C. 50mph
D. 25mph
Answer:
The unit rate is C. 50mph
Step-by-step explanation:
Take two points from the line,
I took points (1, 50) and (2, 100).
Then plug them into this formula:
y2-y1/x2-x1
Solve:
(100- 50)/(2 - 1)
100 - 50 = 50
2 - 1 = 1
50/1 = 50
So, you get C. 50mph
Answer:
The answer would be C. 50mph
Step-by-step explanation:
Got right on USA test prep
Hope this helps
******Please help me please help me help please help*****
Answer:
5 would be the dependent variable.
Step-by-step explanation:
5 would be the dependent variable because that is the number that is that depends on the others in the equation for it to be the final answer.
Answer:
180
Step-by-step explanation:
k = 72/2=36
y =kx
y =36(5)
y = 180
SOMEONE HELP ME AND EXPLAIN HOW ITS THE ANSWER PLZ!!!
Answer:
20 guests
Step-by-step explanation:
20 (20) + 400 = 400 + 400 = 800
10 (20) + 600 = 200 + 600 = 800
answer B = 20 guests
Answer:
For 20 persons the price would be same.
Step-by-step explanation:
y=y
20x+400=10x+600
20x-10x=600-400
10x=200
x=20
Therefore, for 20 persons the price would be same.
please try to help answer and explain pls
Answer:
B
Step-by-step explanation
TIENES QUE SIEMPRE FIJARTE EL DE ABAJO Y DESPUES EL DE ARRIBA
EN PLAN LA LINEA QUE PASA POR EL EJE
What common ratio would cause a geometric series to converge
Answer:0
Step-by-step explanation:
The sum of a convergent geometric series can be calculated with the formula a ⁄ 1 – r, where “a” is the first term in the series and “r” is the number getting raised to a power. A geometric series converges if the r-value (i.e. the number getting raised to a power) is between -1 and 1. So the answer is 0
21 yards by 23 yards fencing cost $1.08 per linear foot how much does it cost?
Answer:
190.08
Step-by-step explanation:
Question:
Ten students each submit one essay for competition.
In how many ways can the first, second, and third prizes be awarded?
NEED FULL EXPLANATION!!!
NO LINKS!!!
PLEASE!!!!
what is happend here haha
Answer:
720 ways
Step-by-step explanation:
First place has 10 choices. First prize is chosen. So, 9 students are left.
Second place has 9 choices.
First and second prizes are chosen. Now 8 students are left
Third place has 8 choices.
Total ways = 10 * 9 * 8 = 720 ways
Jamel has 2 and 2/5 of string. Jamel needs 1/5 of a foot of string to sew a button to a shirt. What is the greatest amount of buttons he can sew onto the shirt with the rest of the string he has?
Answer:
12
Step-by-step explanation:
1=5/5 so 2=10/5
add 2/5 to 10/5 to get 12/5
Express 17/5 as a mixed number, what is the answer?
Answer:
Step-by-step explanation:
3 2/5
Answer:
3 2/5
Step-by-step explanation:
What is the value of
-3x+2y-x
When x = -1 and y = 5
in the similarity transformation of abc to def, abc was dilated by a scale factor of [?], reflected across the [ ], and moved through the translation [ ].
The complete similarity transformation is: triangle abc was dilated by a scale factor of [2], reflected across the [x-axis], and moved through the translation [0].
How to complete the similarity statement?From the figure, we have:
AB = 2 units
DE = 4 units
So, the scale factor (k) is:
k = DE/AB
k = 4/2
k = 2
So, the scale factor is 2
Also, both shapes are on either sides of the x-axis, and they are equidistant from the x-axis.
This means that the triangle is reflected across the x-axis with no translation.
Hence, the complete similarity transformation is:
abc was dilated by a scale factor of [2], reflected across the [x-axis], and moved through the translation [0].
Read more about transformation at:
https://brainly.com/question/4289712
What is the area under f(x) if the function is a continuous probability density function?
Answer:
If X is a continuous random variable, the probability density function f(x), is used to draw the graph of the probability distribution. The total area under the graph of f(x) is one.
Walmart sells 6 gel pens for $15.00 and 4 notebooks for $5.40. What is the
difference between the unit price of a gel pen and the unit price of a notebook?
Enter the answer in the box.
$
Answer:
$1.15
Step-by-step explanation:
$15 / 6 =$2.50 for each gel pen
$5.40 / 4= $1.35 for each note book
$2.50- $1.35= $1.15
I need help asaapppp
A swimming pool contains 3000 gallons of water pool is drained a rate of 100 gallons per minute write a rule for the amount of water in the pool one X minutes of gone by find the amount of water in the pool 130 minutes of
Answer:
100+130=3000
Step-by-step explanation:
Brainlest me please heheheWrite the equation of the line in fully simplified slope-intercept form.
Answer:
y = -1/6x + 2
Step-by-step explanation:
Slope: (-6,3) and (6,1) = (1-3) / (6 - - 6)
= - 2/12 = -1/6
b = 3 - (-1/6)(-6)
b = 3 - 1
b = 2
Nine times the sum of nine and a number is -25. What is the number
Answer:
9(9 + x) = -25
x = 6.22222 repeating
Step-by-step explanation:
First, we have to distribute. 9 times 9 = 81 and 9 times x = 9x. The equation now becomes 81 + 9x = -25.
Second, we have to get the coefficient alone. Since the opposite of positive 81 is negative 81, we subtract it to get 0. Since we did that to one side we have to do it to the other. -25 - (-81) = 56. Now we have 9x = 56.
Third, we have to get the variable by itself. To do that we divide 9 by 9 to get 0 and that gets the variable alone. Since we did that to one side we have to do it to the other. 56 divided by 9 = 6.222 with the 2 repeating over 8 times.
3 wings cost $2 How many wings for $18?
Answer:
We can get 27 wings
Step-by-step explanation:
We can write a ratio to solve
3 wings x wings
--------------- = --------------
2 dollars 18 dollars
Using cross products
3 * 18 = 2 x
54 = 2x
Divide by 2
54/2 = 2x/2
27 =x
We can get 27 wings
Tyler ate 7 hot dogs in 4 minutes. At this rate, how long would it take him to eat 23 hot dogs? Write a proportion, then solve. Round to the nearest tenth.
(7 hot dogs)/(4 minutes) = (23 hot dogs)/(x minutes)
7/4 = 23/x
7x = 4*23 .... cross multiplication
7x = 92
x = 92/7
x = 13.142857 approximately
x = 13.1
Answer: 13.1 minutes (approximate)What is the standard form for 10 to the power of -9
Answer:
is there any whole number or decimal
15 Which line passes through the point (1.-4)? A x + y = 5 B.X + y = 5 c.xy=5 D.x-y=.5
Answer:
Step-by-step explanation:
A x + y = 5 1 + -4 = -3 Nope
B.X + y = 5 1 + -4 = -3 Nope same as A unless X is somehow not equal to x,
C. xy = 5 1(-4) = -4 Nope and does not even qualify as a line.
D. x - y = .5 1 - (-4) = 5 Nope unless you have a typo adding an unwanted decimal point
Estimate 25.65 + 13.23 + 6.35 by rounding each number to the nearest tenth.
a. 26 + 13 + 6 = 45
b. 25.7 + 13.2 + 6.4 = 45.3
c. 25.6 + 13.2 + 6.3 = 45.1
d. 25.7 + 13.3 + 6.4 = 45.4
Answer:
b. 25.7 + 13.2 + 6.4 = 45.3Step-by-step explanation:
25.65 ≈ 25.7, 13.23 ≈ 13.2, 6.35 ≈ 6.4
25.65 + 13.23 + 6.35 =25.7 + 13.2 + 6.4 = 45.3Correct choice is b.