Answer:
j = 38Explanation:
ʲ⁄₋₂ + 7 = -12
Subtract 7 From Both Sides
ʲ⁄₋₂ + 7 - 7 = -12 - 7
Simplify
ʲ⁄₋₂ = -19
Multiply Both Sides By -2
(-2) ʲ⁄₋₂ = -19 (-2)
j = 38Answer:
38
Step-by-step explanation:
Store A sells lawnmower fuel for $4.00 per gallon.
Store B sells containers of fuel for $4.00 each
The cost of fuel at either store can be modeled by the function cin) = 4n where n is
the number of gallons of fuel for Store A and n is the number of containers of fuel at
Store B
The domain of c(n) = 4n is all real numbers.
For each store, drag all the additional restrictions needed on values of n for cín) to
model each situation
Answer:
store a- numbers greater than or equal to zero
store b-numbers greater than or equal to zero and integer values only
Step-by-step explanation:
i just tried it i would know
Find the equation of the line shown
pls help
Answer:
y= 1/2x+ 0
or:
y= 1/2x+ 0
Step-by-step explanation:
Mariah had 2 2/4 bags of soil to use in her garden. After her gardening she had 3/4 of a bag left. How much soil did she use?
Answer:
[tex]\frac{7}{4}[/tex] of a bag of soil
Step-by-step explanation:
Given: Mariah had [tex]2\frac{2}{4}[/tex] bags of soil to use in her garden. After her gardening, she had [tex]\frac{3}{4}[/tex] of a bag left
To find: quantity of soil used.
Solution:
Quantity of soil in the garden = [tex]2\frac{2}{4}=\frac{10}{4}[/tex] bags of soil
Quantity of soil left = [tex]\frac{3}{4}[/tex] of a bag
Quantity of soil used [tex]=\frac{10}{4}-\frac{3}{4}=\frac{7}{4}[/tex] of a bag of soil.
60 people were asked the colour of their car and the pictogram shows the results.
a) 16 cars are red. Complete the key.
b) How many cars are silver?
KEY: One circle represents __ cars
Red = 4 circles
White = 3 circles and a half
Silver = 5 circles and 3/4
Grey = 1 circle and 3/4
The number of silver cars in the pictogram is 23.
How many cars are silver?If 16 cars are red, then, each circle represents 4 cars.
If each circle represents 4 cars, then, each quarter of a circle represents 1 car
White car = 4 + 4 + 4 + 2
= 14 cars
Silver = 4 + 4 + 4 + 4 + 4 + 3
= 23 cars
Grey = 4 + 3
= 7 cars
Total cars = red + white + silver + grey
= 16 + 14 + 23 + 7
= 60 cars
It can therefore be concluded that silver cars is 23 in number.
Read more on pictogram:
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Solve 3/5+h=23/5
PLEASE HELP
*please add how to solve it*
Answer:
h=4
Step-by-step explanation:
3/5+h=23/5
h= 23/5-3/5
h=(23-3)/5
h=20/5
h=4
4х + Зу = -6
5х – бу = -27
Answer:
x=3
y=7
Step-by-step explanation:
I need to find the missing angle measures.
Answer:
step 1. b = 102° (vertical angles)
step 2. one complete revolution equals 360°
step 3. a + b + c + 102 = 360
step 4. a + 102 + c + 102 = 360
step 5. a + c = 156°
step 6. 2a = 156 (vertical angles are equal)
step 7. a = 78°, c = 78°.
Identify the slope of the line in the graph.
Answer:
-1/2
Step-by-step explanation:
Slope is calculated by rise over run.
In this case, the rise is 1, and the run is -2.
So, the slope is -1/2.
Let me know if this helps!
Solve for the variable
X + 14 = 22
Answer:
X = 22 - 14
= 8
3x^2-8x+4=0 Solve quadratic equations by completing the square.
Answer:
x = ⅔ Or x = 2Explanation:
3x² − 8x + 4 = 0
Factor left side of equation
(3x − 2)(x − 2) = 0
Set factors equal to 0
3x − 2 = 0 or x − 2 = 0
x = ⅔ or x = 2Quadratic equations are a form of algebraic equations that can or cannot be factorized.
The value of x is 2 and 2/3
Quadratic equations come in the form: ax²+ bx + c = 0
Solution by completing the square for:
3x²− 8x + 4 = 0
a = 3 , a≠1 so we divide through by 3
3x²/3 − 8x/3 +4/3 = 0/3
which gives us
x²− 8x/3 + 4/3 = 0
Subtract 4/3 from both sides
x²− 8x/3 + 4/3 - 4/3 = 0 - 4/3
x² − 8x/3 = −4/3
Take half of the x term and square it and add the result to both sides
x² − 8x/3 + 16/9 = −4/3 + 16/9
Rewrite the perfect square on the left
(x − 4/3)² = −4/3 + 16/9
and combine terms on the right
(x − 4/3)²= 4/9
Take the square root of both sides
x − 4/3 = ±√4/9
Simplify
x − 4/3 = ±2/3
Collect like terms
x = 4/3 ± 2/3
Solving for xx = 4/3 + 2/3
x = 6/3
x = 2
Also:
x=4/3 − 2/3
which becomes
x = 2/3
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no solution, one solution, or infinitely many solutions?
Answer:
Top: one solution (10, -2)
Middle: No solution
Bottom: infinite solution
Step-by-step explanation:
Top: one solution (10, -2)
Middle: No solution
Bottom: infinite solution
Tell whether the function y +4 - x= x= + 3 is linear or nonlinear.
linear
nonlinear
Answer:
non linear. cause the equation of a linear function is given by y = mx+c
1 1/2×(−6/15) Not a big math person what is this?
Answer:
11/2×(-6/15)
=-11/2×6/15
=-11×3/15
=-11×1/5
=-11/5
14 - 3c + 8 + c ????
Answer:
−2c+22
Step-by-step explanation:
16 m - 14
???????????help
A cookie delivery company charges $0.90 per cookie plus a $3 delivery fee. If an
order costs $11.10, how many cookies were ordered?
Answer:
9 cookies
Step-by-step explanation:
The equation is 11.1 = 0.9x + 3. First, we need to isolate the variable so we subtract 3 from both sides. 8.1 = 0.9x. Next we divide both sides by 0.9 which gives us 9 = x or x = 9.
factor 2x^2+5x+3
plz explain your answer
A store sells 38 men's bikes and 47 women's
bikes. How many bikes did the store sell
in all?
Answer:
85
Step-by-step explanation:
you add 38 and 47 together and you get 85
Answer:
Ten Ten
Step-by-step explanation:
Solve the system by substitution:
3x + 2y = 26
Y=x + 3
Answer:
x = 4
Step-by-step explanation:
3x + 2y = 26
y = x + 3
Plug in the equation for y
3x + 2(x + 3) = 26
Multiply the 2 with what is in the parantheses
3x + 2x + 6 = 26
Combine like terms and solve for x
5x + 6 = 26
5x = 20
x = 4
Answer
x=4, Y=7
Step-by-step explanation:
3x + 2y = 26
Y=x + 3
3x+2(x+3)=26
3x+2x+6=26
5x=20
x=4
Y=4+3
Y=7
Check
3(4)+2(7)=26
12+14=26
26=26
1. The average Third grade student can read 60 words in 5 minutes What is the average reading rate per minute?
Answer:
12 words per minute
Step-by-step explanation:
60/5=12
Find each missing angle
Please
Answer:
m<1=61
m<2=40
m<3=60
m<4=80
m<5=100
Step-by-step explanation:
180/3=60
180/9=20
20x2=40
20x4=80
20x3=60
59+60=119
180-119=61
180-80=100
How do you estimate percentage.
Step-by-step explanation:
To estimate percentage I would round up the numbers to the nearest neat number? like 10 or 15 for example and then find the percentage of that number.
which linear any qualities could represent the given table of values
Write 36 as a product of its prime factors.
Answer:
2 × 2 × 3 × 3 × 3
What expressions are equivalent to X+2y+X+2
A. 2(x+y+1)
B. 2x+4y+4
C. None of the above
Plz help
A group of friends were working on a student film that had a budget of $1500. They used 24% of their budget on props. How much money did they spend on costumes?
Answer:
360
Step-by-step explanation:
1500*0.24=360.
Trust me, I know this.
Answer:
The answer will be 1,290
Step-by-step explanation:
Worked it out! Hope it help!:)
How to find the slope of (0,7) and (5,9)?
Answer:
The slope is 2/5 (0.4).
Step-by-step explanation:
The formula for finding a slope is m = (yB - yA)/(xB - xA). That equation becomes:
m = (9 - 7)/(5 - 0)
Subtract 7 from 9 to get 2.
m = 2/(5 - 0)
Any number subtracted by 0 equals itself.
m = 2/5, or 0.4 is the final answer.
Which inequality is represented by the number line diagram shown below
I think it’s the second one, I did the test and got an A
x < 0
(Sorry I responded late hope this helped)
Answer:
x>-1
Step-by-step explanation:
Because the sign is going to the right so it is automatically less than, and the point is on -1 going to the right. I took the test don't worry this answer is right. :)
Akira is folding a piece of paper that is 0.2 millimeters thick in half. The thickness of the paper doubles with each fold. Let n represent the fold number and t(n) represent the thickness of the paper. Which exponential function represents this scenario?
Answer:
t(n)= 0.2 * 2ⁿ
Step-by-step explanation:
Thickness= 0.2 millimeters
paper = 1
n= number of folds
The exponential function will be given by
t(n)= 0.2 * 2ⁿ
so if there's a single fold
t(1)= 0.2 * 2¹
t(1)= 0.4 mm
Now for 2 folds the thickness will be
t(2) = 0.2 *2 ²
t(2)= 0.2 *4
t(2) = 0.8mm
The exponential that represents this scenario is
t(n)= 0.2 * 2ⁿ
And for 3 folds the thickness will be
t(3) = 0.2 *2 ³
t(3)= 0.2 *8
t(3) = 1.6 mm
Solve for the missing side x
How do I answer this?
Answer:
x=5
Step-by-step explanation:
Plugin the number into sthe pythagroyean theorm (a²+b²=c²), with 3 replacing a, 4 replacing b, and x replacing c.
3²+4² = x²
9+16 = x²
25 = x²
√25 = √x²
x = 5
It's helpful to remember that if the opposite and adjacent sides of the triangle (in this case CB and AB) are the lengths 3 and 4, the hypotenuse (longest side of the triangle) is always equal to 5.