Answers
Answer:
b. -84
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityAlgebra I
Terms/CoefficientsStep-by-step explanation:
Step 1: Define
[tex]\displaystyle \frac{a}{-7} - 7 = 5[/tex]
Step 2: Solve for a
Addition Property of Equality: [tex]\displaystyle \frac{a}{-7} - 7 + 7 = 5 + 7[/tex] [Simplify] Add: [tex]\displaystyle \frac{a}{-7}= 12[/tex]Multiplication Property of Equality: [tex]\displaystyle -7 \cdot \frac{a}{-7} = 12 \cdot -7[/tex][Simplify] Multiply: [tex]\displaystyle a = -84[/tex]Step 3: Check
Plug in a into the original equation to verify it's a solution.
Substitute in a: [tex]\displaystyle \frac{-84}{-7} - 7 = 5[/tex][Frac] Divide: [tex]\displaystyle 12 - 7 = 5[/tex]Subtract: [tex]\displaystyle 5 = 5[/tex]Here we see that 5 does indeed equal 5.
∴ a = -84 is the solution to the equation.
Related Questions
Jo walks to school every day. The probability Jo is late on a Monday is 0.4. The probability Jo is late on a Tuesday is 0.2. What is the probability that Jo is not late on Monday?
Answers
Answer: The probability that Jo is not late on Monday = 0.6
Step-by-step explanation:
The probability of getting late is independent on each day.
Also, for an event E
Probability of not E = 1- P(E) , where P(E) = Probability of happing E
Given: The probability Jo is late on a Monday is 0.4.
Then, the probability that Jo is not late on Monday = 1-0.4= 0.6
Hence, the probability that Jo is not late on Monday = 0.6
Answer:
blob
Step-by-step explanation:
Which of these r-values represents the strongest correlation? O A. -0.7 Caty B. -0.6 O C. -0.4 O D. -0.5
Answers
Answer:
-0.4
Step-by-step explanation:
its that one
The strongest correlation is -0.4.
Option C is correct.
What is correlation?Correlation is a statistical term that expresses how closely two variables are related linearly (meaning they change together at a constant rate). It's a typical tool for describing simple relationships without stating a cause and effect link.
When the result is closer to +1 (positive correlation) or -1 (negative correlation), the strongest correlation is considered (negative correlation).
A positive correlation coefficient means that the value of one variable is directly related to the value of another.
Here -0.4 is the closest value to 1.
So, the strongest correlation is -0.4.
Learn more about Correlation here:
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PLEASE HELP ON ALL OF THEM!!
i WILL MARK BRAINLY
Answers
Answer:
on what
Step-by-step explanation:
Answer:
Nothing showed up :/
Step-by-step explanation:
What is the answer to the equation 4x+1=2x-5
Answers
Answer:
x = -3
PLZ MARK AS BRAINLIEST
Answer: x=3 I think
Step-by-step explanation:
What is the rule to respresent this function?
Answers
Dan rolls a fair dice 24 times.
How many times would Dan expect to roll an even number?
Answers
Answer:
Step-by-step explanation:
Omggg
hii
Three friends go grocery shopping together, and each buys the same kind of
oranges. LaMar buys 2 pounds (lb) and pays $3.00. Enrico buys 5 pounds and
pays $7.50. Anna buys 3 pounds and pays $4.50.
Identify the graph and unit price that represent the orange costs.
Answers
Answer:
C
Step-by-step explanation:
Because if you plug those numbers into the graph, only C and D fit. Now we have to look at the unit price. If LaMar buys 2 lbs and pays 3.00 dollars, we know that the unit price is 3/2=1.5 dollars per pound. You could also check with the other peoples. $7.5/5lbs=1.5 dollars. $4.5/3lbs=$1.5
The relationship between the data and the line and the unit price of oranges of $1.50 per pound is best represented by option C.
What is the slope of a line?The slope of a line is the tangent of the angle that the line makes with the positive direction of the x-axis.
It signifies the rise in the y-variable for a unit change in the x-variable.
If the line passes through the points (x, y) and (x, y), then the slope of the line, m = (y - y)/(x - x).
How to solve the question?In the question, we are asked to identify the graph and mention the unit price of the orange from the available data.
Taking the quantity of oranges bought in pounds and the cost of oranges in dollars on the x and y axes respectively, we can say that the line must pass through the points:
(2, 3) representing the purchase by LaMar,
(5, 7.5) representing the purchase by Enrico,
(3, 4.5) representing the purchase by Anna.
The unit price can be calculated by calculating the slope of the line,
m = (7.5 - 4.5)/(5 - 3) = 3/2 = 1.5.
These points and the required unit rate is satisfied by option C, thus it is the best choice.
Learn more about the graph and the slope of graphs at
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I will mark you brainiest if you can answer this
Answers
Answer:
Step by step below
Step-by-step explanation:
center of dilation: W
Similarity statement:
wx/wx' = wz/wz' = xy/x'y' = yz/y'z' = 5/3
∠w = ∠w=90°, ∠x = ∠x'=90°, ∠y = ∠y'=90°, ∠z = ∠z'=90°
square wx'y'z' ~ wxyz
What is the distance between two points with coordinates at (8, 40) and (20, 5)?
A) 35.3 B) 37 C) 47 D) 54.1
Answers
Answer:
b hope it helps
Step-by-step explanation:
Calculation in picture below
PLEASE HELP ASAP NO ROCKY!!!
Answers
Answer:
3w2
Step-by-step explanation:
X
Solve the following two equations. Show all of your
steps in the line paper provided. Be ready to share your
work!
Equation #1: y - 17 = 24
Equation #2: (2y - 4) =
– ) 12
Answers
Answer:
iffjfjfkfkfjfjtigkodgujjdjsjjsjssjcnkjjdjdjjf
24+17=y
41=y
The second I’m confused
Which statement describes how to slide Figure 1 onto Figure 2?
Figure 2
Figure 1
O Move Figure 1 to the right 9 units and up 16 units.
O Move Figure 1 to the right 16 units and up 9 units.
O Move Figure 2 to the right 9 units and up 16 units.
O Move Figure 2 to the right 16 units and up 9 units.
Answers
Answer: b the second answer
Step-by-step explanation:
. Write 2:3 in the form of 1:n
Answers
Answer:
1 : 1.5
Step-by-step explanation:
Given the ratio
2 : 3 ← divide both parts by 2
= 1 ; 1.5
Answer:
The answer is n = 3/2.
Step-by-step explanation:
2:3: : 1:2,
2n = 3,
n = 3/2
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What's the simplest from for the ratios:
8:20. Ill mark brainless!
32:28
12:15:24
45:60135
80:112:176
Answers
Answer:
12:15= 4.5
32:28 = 8:7
45:60135=3:4
Step-by-step explanation:
The rest are confusing
Answer:
Step-by-step explanation:
8:20 = 2:5
32:28 = 8:7
12:15:24 = 4:5:8
45:60:35 = 9/12/7
80:112:176 = 5:7:11
!!!!!I NEED HELP ASAP!!!!!!
Answers
Answer: 3 and 7
Step-by-step explanation: beucase the color
I need help with the question (x+2)7=
Answers
Answer:
D.)x7+14x6+84x5+280x4+560x3+672x2+448x+128
Step-by-step explanation:
have a great day :)
17)
Gas Mileage
162
135
108
miles
81
54
27
0
0
6
gallons
The graph shows gas mileage for a car. What is the unit rate?
A)
54
miles per gallon
B)
miles per gallon
27
09
27 miles per gallon
D)
54 miles per gallon
Answers
Answer:
The unit rate = 27 miles per gallon.
Hence, option C is true.
Step-by-step explanation:
From the given line graph:
Taking two points
(2, 54)(6, 162)The unit rate can be determined by finding the rate of change or slope between the points (2, 54) and (6, 162)
[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\left(x_1,\:y_1\right)=\left(2,\:54\right),\:\left(x_2,\:y_2\right)=\left(6,\:162\right)[/tex]
[tex]m=\frac{162-54}{6-2}[/tex]
Refine
[tex]m=27[/tex]
Therefore, the unit rate = 27 miles per gallon.
Hence, option C is true.
How do u convert decimals to percents and percents to decimals????????
Answers
Answer:
To convert a decimal to percent, just multiply it by 100, or move the decimal place 2 times
Ex: 0.29 x 100 = 29
The answer would be 29%
To convert a percent to a decimal, do the opposite
Ex: 29%/100 = 0.29
To convert decimals to percents is to multiply by 100 then add a percent sign. To convert percents to decimals is to move the decimal point two places to the left or divide by 100 and remove the percent sign.
Step-by-step explanation:
Example:2.5%
2.5% can be expressed in decimal form as 0.025. Since a percent represents the part per 100 to convert a percent to a decimal divide 2.5 by 100.
2.5/100=0.025.
Example:2.5
2.5 can be expressed in percent form as 250%.Since a decimal represents a fraction and a percent is out of 100, to convert a decimal to a precent multiply 2.5 by 100.
2.5 x 100=250
Add the percent sign
250%
PLEASE HELP
Translate N( 1,-5) to the right 4 units and down 6 units
Answers
Answer:
( 6, -11 )
Step-by-step explanation:
do it on a graph called desmos
A rectangle has a height of 4x^3and a width of x^3+3x^2+2x
Express the area of the entire rectangle.
Your answer should be a polynomial in standard form.
Answers
Answer:
area of recatangle= 4x^3(x^3+3x^2+2x)
=4x^6+12x^5+8x^4
will give brainliest please help
Cows came from...?
Answers
Answer:
The Old World (b)
Step-by-step explanation:
Answer:
Cows came from the old world I think
The number of math problems that Sasha completed today is
5 less than 2 times the number of math problems she
completed yesterday. Which expression represents the
number of math problems Sasha completed today?
Answers
A staircase handrail is made from congruent parallelograms. In PORS, PQ = 17.5, ST = 18, and
mZQRS = 110°. Find m<
SPQ.
R
P
The measure of ZSPQ is
Answers
Answer:
110°
Step-by-step explanation:
<QRS = 110°
<SPQ = <QRS ( BEING OPPOSITE ANGLES OF PARALLELOGRAM)
<SPQ = 110°
What is the 10th term in the sequence -6,-9,-12,-15
Answers
Answer:
-33
it just adding -3
ex: -6+-3= -9
hope this helped
-18 is the fifth one add -3 and its -21 which is the 6th one. then you keep going and get -33.
Answer:
-33
Explanation:
Pattern: Subtract 3[1] -6
[2] -9
[3] -12
[4] -15
[5] -18
[6] -21
[7] -24
[8] -27
[9] -30
[10] -33
3 9 points Write the point-slope form of an equation for a line that passes through the point with the given slope. wich 14) (1, 5), m= F. y - 5 = {(x - 1) G. y - 5 = 5(x - 1) H. y + 5 = $(x - 1) J. y - 5 = (x+1)
Answers
Answer:
Its G
Step-by-step explanation:
when you solve for G it gives you _5/3 as the slopes
please help making brainliest if right!
Answers
Answer:
The answer is SAS
Can u pls help me with this question
Answers
Step-by-step explanation:
I am not sure bout this question sry
you reap what you sow ;)
Find the area of the polygon.
Answers
Answer:
8.75 mi
Step-by-step explanation:
well it was quite simple. break the problem into more smaller problems then add when solved
PLEASE URGENT!!! How do i solve with proving with what’s given?
Answers
Answer:
Try useing a therom.
Step-by-step explanation:
27:In the first question you could use SAS which means side angle side because D is the midpoint and it tells you that ab and bc are equal.
Same for 28
Hurry plz
How many solutions does this system have?
y=5x-1
y=-3x+7
O no solutions
O one unique solution
O two solutions
O an infinite number of solutions
Answers
Step-by-step explanation:
y=5x-1 _ equation 1y=-3x+7_equation 2equation 1×3 _ 3y=15x-3equation 2×5 _ 5y= -15x+35equation 1+2 _ 8y=32
y=32÷8
y=4
y=4 in equation 2
4=-3x+7
4=-3x +7
4-7=-3x
-3=-3x
x=1
I think two solution