Answer: x = 3
Step-by-step explanation:
Let's solve your equation step-by-step.
31 = 8x + 7
Step 1: Flip the equation.
8x + 7 = 31
Step 2: Subtract 7 from both sides.
8x + 7 − 7 = 31 − 7
8x = 24
Step 3: Divide both sides by 8.
8x /8 = 24 /8
x = 3
Answer:
x = 3
Source: https://www.mathpapa.com/algebra-calculator.html?q=31%3D8x%2B7
, Hope this helps :)
Have a great day!!
Mary has saved $20.50 in the past 3 weeks. At this rate, how much will she save in 18 weeks?
Answer: $123
Step-by-step explanation:
$20.50/3 (weeks) = 6.83333333333
$6.83333333333 x 18 (weeks) = $123
Answer:
Step-by-step explanation:
18 weeks = 6 * 3
= 6 * 20.5
= $ 123
help please this is timed i’m not sure if my answer is correct
(it’s abt perpendicular, parallel and skew lines)
Answer:
Perpendicular
Step-by-step explanation:
Both lines intersect and form a right angle when they intersected each other. Non co-planar means essentially means "on different planes", but both lines do lie on the same plane. Parallel lines don't intersect at all! However lines a and d are intersecting. Skewed means neither parallel nor perpendicular (meaning they intersect and don't form a right angle).
Answer:
It would be perpendicular.
Step-by-step explanation:
Perpendicular lines form a 90-degree angle.
Skew lines are on different planes and do not intersect.
Since A and D intersect with a 90-degree angle they're perpendicular.
Drag and drop the equation to correctly complete the sentence.
The equation of the line that passes through the points (2, -7) and (5, -1) is
????
Answer:
y= 2x - 11
Step-by-step explanation:
(-7 +1 )/ (2-5) = 2
y= 2x +b
-1 = 2* 5 + b
solve for b and you get -11 so the equation of the line is :
y = 2x -11
let the graph of g be horizontal shrink by the factor of 2/3 followed by a translation 5 units left and 2 units down of the graph of f (x) =x ^ 2
1. horizontal shrink by factor of 2/3 means multiply outside the f(x) or outside the x^2 by 2/3:
(2/3)•f(x)
2. translation left 5 units means "x+5" inside:
(2/3) • f(x+5)
3. tranlate down 2 units means "-2" outside:
(2/3) • f(x+5) -2
or (2/3) (x+5)^2 - 2
[tex]\frac{2}{3}\cdot f(x+5)-2[/tex] or [tex]\frac{2}{3}\cdot (x+5)^2-2[/tex]
Lois is 3 years older than Oscar. The sum of their ages is no more than 20. Write an inequality that can be used to represent this situation, where x represents Oscar’s age.
ATQ
[tex]\\ \sf\longmapsto x+x+3\leqslant 20[/tex]
[tex]\\ \sf\longmapsto 2x+3\leqslant 20[/tex]
[tex]\\ \sf\longmapsto 2x\leqslant=17[/tex]
[tex]\\ \sf\longmapsto x\leqslant \dfrac{17}{2}[/tex]
Answer:
let Oscar's years be x
• Oscar → x
• Lois → (x + 3)
[tex]{ \rm{x + (x + 3) \leqslant 20}} \\ \\ { \boxed{ \rm{2x + 3 \leqslant 20}} }[/tex]
5/6 x 15
please! This is due by 6!
Answer:
12.5 Hope it helps =D Have a wonderful Day!
Step-by-step explanation:
Patrick can paint a house by himself in
t
+
4
hours. Karen can paint the same house by herself in
t
+
9
hours. If they work together, they can paint the house in
t
hours. How much time will it take for Patrick to paint the house by himself?
Answer:
Its 12
Step-by-step explanation:
Ok done
A gym employee earns the same amount each month. After working for three months, he earned $4,500. Complete the table to determine how much money he will make over a five-month period. 5.Is the relationship proportional? Explain your thinking.
Answer:
1,500
Step-by-step explanation
1. to divide 3 by 4,500.
after dividing 3 and 4,500 you get
1,500
The money he will make over a five-month period will be $7,500.
What are ratio and proportion?A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.
A rec center worker procures a similar sum every month. In the wake of laboring for a considerable length of time, he procured $4,500.
The amount of money that he earns each month is given as,
⇒ $4,500 / 3
⇒ $1,500 per month
Then the money he will make over a five-month period will be given as,
⇒ $1,500 x 5
⇒ $7,500
The money he will make over a five-month period will be $7,500.
More about the ratio and the proportion link is given below.
https://brainly.com/question/14335762
#SPJ5
Mal got a prepaid debit card with $30 on it. For her first purchase with the card, she bought some bulk ribbon at a craft store. The price of the ribbon was 19
cents per yard. If after that purchase there was $26.77 left on the card, how many yards of ribbon did Mal buy?
Answer:
17 yards
Step-by-step explanation:
please someone help me giving brainliest :)
Answer:
It should be 4.
|2s-7| is bigger than or equal to -1
The inequality expression of the statement is |2s - 7| >= -1
What are inequality expressions?Inequality expressions are mathematical statements that are represented by variables, coefficients and operators where the opposite sides are not equal
How to represent the statement as an expression?The mathematical statement is given as
|2s - 7| is bigger than or equal to -1
The term "bigger than or equal" means greater than or equal to
In mathematics, the term greater than or equal to is represented as >=
So, we have the representation of the mathematical statement to be
|2s - 7| >= -1
From the question, we are not instructed to simplify the expression
This means that we leave the expression |2s - 7| >= -1 unsimplified
Hence, the mathematical statement as an expression is |2s - 7| >= -1
Read more about inequality expression at
https://brainly.com/question/25275758
#SPJ1
Nishi invests £2800 at 4%
interest per year.
Work out how much she will
have altogether after:
3 years,
5 years,
6 years
And
9 years
Answer:
2800 x (1.04)³= 3149.6192
2800 x (1.04)⁵ = 3406.628127
2800 x (1.04)⁶ = 3542.893252
2800 x (1.04)⁹ = 3985.273075
Step-by-step explanation:
So there this question sayed if drove 110 mile and used 5 gallon of gas and if he plan to drive 236 mile , how many gallon of gas would Bryce need
Answer:
10.72 gallons.
Step-by-step explanation:
Divide 236 by 110.
You should get 2.1454.
Multiply 2.1454 by 5 gallons of gas.
PLEASE MARK BRAINLIEST
Answer:
12
Step-by-step explanation:
Solve the simultaneous equations 2x + y = 5 and 2y = x – 10.
[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]
The given equations are :
[tex]2x + y = 5[/tex][tex]2y = x - 10[/tex]From the first equation, we get :
[tex]2x + y = 5[/tex][tex]y = 5 - 2x[/tex]now, let's put the value of y as (5 - 2x) in second equation to find the value of x :
[tex]2y = x - 10[/tex][tex]2(5 - 2x) = x - 10[/tex][tex]10 - 4x = x - 10[/tex][tex]5x = 20[/tex][tex]x = 4[/tex]hence, value of x = 4, Plugging the value of x in second equation :
[tex]2y = x - 10[/tex][tex]2y = 4 - 10[/tex][tex]2y = - 6[/tex][tex]y = - 3[/tex]so, the required values are :
x = 4 y = -3I need help with #7 asap plss
Answer:
sorry i would help if i new let me see if i can find it somewhere
Step-by-step explanation:
I need help with this one
Answer:
S = 180C²
18,000 lbs
Step-by-step explanation:
Assuming the table attached with C in inches and S in pounds, we see that the first differences in S are ...
180, 540, 900
These are not constant, so the relation is not linear.
Second differences are ...
360, 360
These are constant, so the relation is quadratic. With a short trial, we find that a suitable equation is ...
S = 180·C²
__
The safe load for C=10 is then ...
S = 180·10² = 18,000 . . . pounds
better?
If (x+2,5)=(3y+2)find x and y
Answer:
X = 7
Step-by-step explanation:
because of you do 5+2 = 7 then you minus 3 which you get 4.
the. if you have a production of around 10 you will get 7.
or you can do.
3+2 which is 5 and then you multiply that by 2 which is 10 and then you comprised that number therefore you will get 6 but you have to find X so we youndelie (think that's how u spell it) X which will equal to 1 and 6+1 is 7. once you get it it's quite simple
the temperature last year in winter was 36.6 degrees, and then dropped to 33.4 degrees. What was the difference? PLEASE SHOW YOUR WORK
Answer: 3.2
Step-by-step explanation:
36.6 - 33.4 = 3.2 so that would be the difference
i need help!!!!!!!!!!!!!
Answer: 21+4x=39+3x
$93 for 18 pages
Step-by-step explanation:
both of the costs will = each other so you make an equation where they are equal and x= 18 so just plug that in for the number of pages. and you get 93=93
which of the following represents a linear function with slope of 6?
Answer:
any equation with a 6 before the x
y=6x+b
Step-by-step explanation:
standard form is y=mx+b
m is the slope and b is y-intercept
Help me with math, please.20 points.
Find the missing amount)
Original: $160
New: $136
%Decrease:_______
(not multiple choice)
whats 9 + 10 (i wanna see some REAL answers)
9+10=19
Step-by-step explanation:
whats 9 + 10 it's 19
What number is 5.1% of 15?
Answer: 0.765
Step-by-step explanation:
“of” means “multiply”
5.1% can be written as 0.051
Multiply 15 by 0.051
0.765
NEED THIS ASAP PLEASE HELP
Find the measure of the missing angle.
Answer:
42 + 90 + X = 180
X = 180 - 132 = 48
Find the x- and y-intercepts of : 4y-6x = 24
Answer:
x-intercept: (-4, 0)
y-intercept: (0, 6)
Step-by-step explanation:
4y - 6x = 24
To find the x-intercept, set the y value equal to 0.
4(0) - 6x = 24
Simplify by removing 4(0) since it just equals 0.
-6x = 24
Divide both sides of the equation by -6
x = -4
Since we set y equal to 0 and we know that the x value is -4, we can create a coordinate for the x-intercept of the equation.
(x, y) = (-4, 0)
Repeat the process for finding the y-intercept, but set x equal to 0.
4y - 6(0) = 24
4y - 0 = 24
4y = 24
Divide both sides of the equation by 4
y = 6
Write as a coordinate/intercept.
(x, y) = (0, 6)
Let me know if you have any questions!
3. Owen’s parents were planning a big birthday party for him. (a) His parents spent $1.75 on each of 6 goodie bags. How much did they spend on goodie bags? Show your work. (b) They spent $130 to rent a bounce house for 8 hours. How much is the hourly rate for the rental? Show your work. (c) If the parents spent a total of $182.53 on the party, how much more did they spend than what was spent in parts (a) and (b)? Show your work.
Answer:
Step-by-step explanation:
(a) 2.49 * 6 = 14.94 <== what they spent on goodie bags
(b) 150 for 8 hrs = 150/8 = 18.75 per hr
(c) 182.53 - (150 + 14.94) = 182.53 - 164.94 = 17.59...they spent 17.59
please help this is a graded assignment due tomorrow
Make up this problem yourself 3 divided by 1/2
Answer:
3 : (1/2) =[tex]\frac{6}{1} =6[/tex]
Step-by-step explanation:
Divide: 3 : [tex]\frac{1}{2} =\frac{3}{1} *\frac{2}{1} =\frac{3 * 2}{1*1} =\frac{6}{1} =6[/tex]
Dividing two fractions is the same as multiplying the first fraction by the reciprocal value of the second fraction. The first sub-step is to find the reciprocal (reverse the numerator and denominator, reciprocal of [tex]\frac{1}{2}[/tex] is [tex]\frac{2}{1}[/tex]) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators.
In words - three divided by one half = six.
Which of the following best compares the slopes and y-intercepts of the two functions? (1 point)
The slope of f(x) is greater than the slope of g(x). The y-intercept of f(x) is equal to the y-intercept of g(x).
The slope of f(x) is greater than the slope of g(x). The y-intercept of f(x) is greater than the y-intercept of g(x).
The slope of f(x) is equal to the slope of g(x). The y-intercept of f(x) is less than the y-intercept of g(x).
The slope of f(x) is equal to the slope of g(x). The y-intercept of f(x) is greater than the y-intercept of g(x).
PLS HELP
Answer:
The slope of f(x) is equal to the slope of g(x). The y-intercept of f(x) is greater than the y-intercept of g(x).
Step-by-step explanation:
F(x) is already given to you on the graph. You need to plot the x and g(x) graph. (remember g(x) is just a fancy way of saying y)
Once this line is plotted, you will see that f(x) and g(x) are parallel to one another. G(x) is below f(x), so its y-intercept is lower.