Answer:
3
Step-by-step explanation:
Step 1:
- 5x + 2 = - 13 Equation
Step 2:
- 5x = - 15 Subtract 2 on both sides
Step 3:
x = - 15 ÷ - 5 Divide
Answer:
x = 3
Hope This Helps :)
Help!!!!
very needed
Answer:
it's the second one
10(group fee) + 5.5x ($ per ticket)
[tex] \leqslant [/tex]
(the amount should be less than or equal to 125) 125(the amount that the teacher can spend)
A car rental agency rents cars for $26.20 per day plus $0.22 per mile driven. If you rent the car for one day and your travel budget is $200, what is the maximum number of miles you can drive?
Answer: 600
Step-by-step explanation:
what's -5/1 + (-5/3)
Answer:
Fraction = -20/3 = -18 2/3Decimal = −6.66666666667Step-by-step explanation:
Just times the -5/1 by 3 on both sides and then
add both of the fraction numbers so you can get =
-20/3 in improper fraction or -18 2/3 in mixed number form
or the decimal = −6.66666666667 I hope this helps you, have a great day!
Hope this helps! <3
8 + (-8) + a = ?
Whats the answer
Answer:
a
Step-by-step explanation:
8+(-8)+a=?
8-8+a=0+a=a
Answer:
0
Step-by-step explanation:
8 + ( - 8 ) + a
= 8 - 8 + a
= 0 + a
= a
a = 0
Solve -x/3 ≥ 5.
x ≥ 15
x ≤ 15
x ≥ - 15
x ≤ - 15
Apex
Answer:
-x/3 ≥ 5
L.C.M= 3
3 × -x/3 ≥ 5 × 3
-x ≥ 15
-x/-1 ≥ 15/-1
x ≤ -15
Please I really need help
Answer:
a: 130
b: 130
c: 50
Step-by-step explanation:
a straight line has an angle of 180, so those two angles are going to add up to 180. and opposite angles are equivalent
Answer:
A. is 130
B. is 130
C. is 50
hope it helped!
p.s it would be cool if you gave me brainliest
Would a step-up transformer or a step-down transformer be used to convert 260 volt AC current from a household input into a 13 volt AC output in a portable electric fan? Determine the ratio of the number of input wire coils to output wire coils on the transformer.
Answer:
20:1
Step-by-step explanation:
It is given that,
Input voltage = 260 volt
Output voltage = 13 volt
We need to find the ratio of the number of input wire coils to output wire coils on the transformer.
For a step-down transformer,
[tex]\dfrac{V_i}{V_o}=\dfrac{N_P}{N_S}\\\\\dfrac{N_P}{N_S}=\dfrac{260}{13}\\\\=\dfrac{20}{1}[/tex]
Hence, the required ratio is 20:1.
During the winter, you charge people $15 for going to their house to shovel, then $11 for every hour you shovel. If you shovel 3 driveways in one day and make $89 that day, how many hours did you spend shoveling?
Answer:
4
Step-by-step explanation:
15x3=45
89-45=44
11x4=44
Answer:
Spent 4 hours shoveling
Step-by-step explanation:
15 x 3 = 45
89 - 45 = 44
44 / 11 = 4
I hope this helps you :)
in the diagram shown what is the ratio of shaded parts to unshaded parts?
Answer:
you didnt put the diagram
Answer:
I am pretty sure this is the picture for this and I need help to ASAP tysm if u help me I have time on this test
Step-by-step explanation:
Hope this helped to see what picture it was :)
Mae Ling earns a weekly salary of $310 plus a 6.5% commission on sales at a gift shop. How much would
she make in a work week if she sold $4,500 worth of merchandise?
She would make $ ?
Answer:
$325
Step-by-step explanation:
Mae Ling earns a weekly salary of $325 plus a 6.5% commission on sales at a gift shop. How much would she make in a work week if she sold $4,800 worth of merchandise?
4.7 x 6.8. help pls
Answer:
4.7 * 6.8 = 31.96
Step-by-step explanation:
A sequence is shown below.
32, 26, 20, 14...
Which explicit formula can be used to determine the nth term in the sequence?
a^n =6n+38
a^n= -6n+38
a^n= -6n+32
a^n= 6n+32
Answer:
a^n = -6n + 32
Step-by-step explanation:
32 - 6 = 26
26 - 6 = 32 - 6.2 = 20
20 - 6 = 32 - 6.3 = 14
-> a^n = -6n + 32
Factor 2x^2-x-10. Rewrite the trinomial with the x term expanded using 2 factors.Then group the first 2 and last 2 terms together and find the Gcf of each
Trinomial (2x- ___) + (4x-10)
Gcf __ (2x-5) + __ (2x-5)
Answer:
Trinomial: (2x² – 5x) + (4x – 10)
GCF: x (2x – 5) + 2 (2x – 5)
Step-by-step explanation:
2x² – x – 10
The equation above can be factorised as follow:
2x² – x – 10
Multiply the first term (i.e 2x²) and the last term (i.e –10) together.
2x² × (–10) = –20x²
Find two factors of –20x² such that when we add them together, it will result to the 2nd term in the equation (i.e –x).
The factors are 4x and –5x.
Next, replace –x in the equation above with 4x and –5x. This is illustrated below:
2x² – x – 10
2x² – 5x + 4x – 10
Next, factorise
2x² – 5x + 4x – 10
Trinomial: (2x² – 5x) + (4x – 10)
GCF: x (2x – 5) + 2 (2x – 5)
help lol please i don’t know which one it is
Answer:
I think your correct
Step-by-step explanation:
Please help I do not understand
Answer:
This expression is not factorable with rational numbers.
Step-by-step explanation:
The way factoring works, you just want to get it to its smallest form possible. To do that you would divide the entire problem by the Least Common Multiple.
This problem does not have a least common multiple. The LCM of 16 and 64 is 16 but x^2 does not have a number in front. 16k and 64 can be factored but in order to factor the entire problem, x^2 would need to have a number in front that made it divisible by a common multiple of 16 and 64.
Say if the problem was 2x^2+16k+64, you could divide the entire problem by 2. Your answer would be:
2(x^2+8k+32)It is important to note that when you are factoring, never divide any exponents.
The way to check your work when factoring is to distribute the number outside of the parentheses. So in the example I just gave, you'd multiply everything in the parentheses, except the exponent, by 2. Which will give you the original 2x^2+16k+64.
Whatever number you factor out and end up putting outside your parentheses, should multiply back into the parentheses to give you the original problem. If it doesn't, then the factoring was done incorrectly.
Your answer should include parentheses.
What conclusion can be made?
Answer: B) The value of k must be between 1 and 2
The function f(x) has a restricted domain [1, 2] which means [tex]1 \le x \le 2[/tex]
So we can only pick inputs in that interval. If x = k, then [tex]1 \le k \le 2[/tex]
3
All 25 students in our class were surveyed about what their favorite food is. 11 students chose pizza. What
percentage of the class chose pizza?
Easy
[tex] \frac{11}{25} \times 100 = \frac{11}{25} \times 25 \times 4 \\ [/tex]
[tex] = 11 \times 4 = 44 \: \: percent[/tex]
So %44 of your class students chose pizza.
The percentage of the class chose pizza = 44%
What is percentage?"It is a number or ratio that can be expressed as a fraction of 100."
For given example,
Total number of students = 25
the number of students who chose pizza as their favorite food = 11
So, the percentage of the class chose pizza would be,
⇒ (11/25) × 100 = 44%
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What is the solution of 8=3/4a+12-a+4
Answer:
0
Step-by-step explanation:
In destroit at 10 am,the temperature was -6 degrees.By 2 pm,it had increased 20 degrees.what was the temperature at 11 am? (hint:draw a number line).
A)14 degrees.
B)-26 degrees.
C)-14 degrees.
D)26 degrees.
Answer:
A
Step-by-step explanation:
Mrs. Maxwell works as a travel agent for Universal Travel, Inc. She is paid a salary of
$1,400 a month and a 5% commission. If Mrs. Maxwell sold $14.750 for Universal
Travel, how much did she earn last month?
Answer:55.25 or 6.25
Step-by-step explanation:
Pleaseee helppppp 3-6
Step-by-step explanation:
Here is Slope-Intercept Form for a line: y=mx+b
m is the slope
b is the y intercept
The y intercept is basically the point on the y axis where the line touches.
I will do #3 for you.
Let's first look for the y intercept. We can see that the line touches the y axis at -4, so that's it.
Let's put it into our equation, plugging in -4 for b. This is what we have so far: y=mx-4
To complete this equation, we still need to find the slope, m.
To find it, look at the point where the y intercept is, and count how many units you need to go up or down the y axis, and then right or left the x axis to get to another point on the line. The slope is equal to the change in y ÷ the change in x.
So we see that there's another point on (-3, -2), so let's try to get there from the y intercept.
We need to move two units up and 3 to the left.
In terms of y, we went up +2, and in terms of x, we went down -3
So our slope is 2/-3 or -2/3.
Now that we have our slope (m) and y intercept (b), we can plug it into out Slope-Intercept Equation, plugging in -2/3 for m:
y=-2/3x-4.
We don't need to find x or y. This is our answer for 3. Using the same method, you should be able to find the equations for the rest of the graphs. Good luck.
If f(x) = x2 + 4x + 9. find f(-2)
Answer: f (-2) 5
Your welcome
A function is a relation between two variables where one variable is the set of inputs that gives the other variables as output.
The value of the function at x = -2 is 5.
The domain of the function = 5.
The range of the function = -2.
What is a function?A function is a relation between a set of inputs called domains and it has one output called the range.
Example:
f(x) = x + 2
At x = 2,
f(2) = 2 + 2 = 4
Domain = 2
Range = 4
We have,
f(x) = x² + 4x + 9
We need to find the value of the function at x = -2.
Substitute x = -2 in f(x).
f (-2) = (-2)² + 4x(-2) + 9
f (-2) = 4 - 8 + 9
f (-2) = 5
Thus the value of the function at x = -2 is 5.
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Find the values of a and b
Answer:
a = 14°
b = 36°
Step-by-step explanation:
4b - 12 + 48 = 180 (supplementary)
Rearrange
4b = 180 - 48 + 12
4b = 144
b = 36°
4a - 8 + 4b - 12 = 180 (supplementary)
sub b = 36 into equation
4a - 8 + 144 - 12 = 180
Rearrange
4a = 180 - 144 + 12 + 8
4a = 56
a = 14°
what is Three less than seven
Answer: 4
Step-by-step explanation:
7-3=4
Answer:
3<7
Step-by-step explanation:
....................
a line that has a slope of -2/5 and passes through the origin
Answer:
Hi there!
Your answer is
y= -2/5x
Step-by-step explanation:
The coefficient of x is the slope. IF the y intercept was something other than the origin, that number would be added. Since it has a y int of (0,0), it is simply the equation above!
- Danny multiplied a number by 7 and
added 32. Paul multiplied the same
number by 5 and added 92. After
these calculations, both boys arrived
the same answer. Which equation
can be used to determine what
number each boy multiplied?
Answer:
A.
Step-by-step explanation:
x is what is representing the unknown number. So, both are multiplying x (the unknown number) by 7 and 5, respectively, and adding that number by 32 and 92, respectively.
What number is equal to 3 thousands + 7 tens + 5 ones?
Answer:
3,075
Step-by-step explanation:
The number which is equal to 3 thousands + 7 tens + 5 ones is; 3,075.
Discussion:
From place value concept; we know that;
3 thousands = 3 × 1000 = 3,0007 tens = 7 × 10 = 70.5 ones = 5 × 1 = 5.Addition of all the resulting numbers; 3,000 + 70 + 5 = 3,075
Ultimately, the number which is equal to 3 thousands + 7 tens + 5 ones is; 3,075.
Read more on place value;
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answer for 5 stars pls I need it quick
Answer:The answer is 1/x^12y
Step-by-step explanation:
12 miles below sea level
Answer:
12 miles below sea level
Step-by-step explanation:
What is the slope of the line that passes through
the points (-1,3) and (5, 7)?
Answer:
[tex]\frac{2}{3}[/tex]
Step-by-step explanation:
For this situation we will use this equation:
[tex]m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
This lets us find the slope from a set of points (m being the slope of course), with each one representing a coordinate from our set. (e.g. 7 could be [tex]y_{2}[/tex])
First let's define which coordinates will represent each:
(-1,3): [tex]x_{1} ,y_{1}[/tex]
(5,7): [tex]x_{2} ,y_{2}[/tex]
Now that we have this, we can fill in our coordinates: [tex]m = \frac{7-3}{5-(-1)}[/tex]
Next we simplify: [tex]m = \frac{4}{5+1}[/tex] (double negative = positive)
And simplify some more: [tex]m = \frac{4}{6}[/tex]
Finally, we find the GCF (greatest common factor) of 4 and 6, which is 2, and divide by that to further simplify the fraction: [tex]m = \frac{2}{3}[/tex]
Therefore, the slope of the line that passes through the points (-1,3) and (5,7) is [tex]\frac{2}{3}[/tex].