Answer:
use this
Step-by-step explanation:
math wa
In a school 35% of 280 students bring lunch from home. How many students is that?
Answer: 98
Step-by-step explanation:
What is the x-intercept of the line 5x-2y=10 ?
a. 5
b. 0
c. 2
d. -10
i’m thinking it’s C but i’m not sure?
you cut a board into pieces that are 1/3 ft long. If the board is 5 ft how many pieces will you have
Answer:
b
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
One foot would have 3 1/3 pieces (because 3 * 1/3 = 1) so that means 5 would have 15 pieces (because 3 * 5 = 15)
If ΔABC is an equilateral triangle with, AB = 2x + 17, BC = 6x - 19, AC = 4x-1, find x and the measure of each side
Answer:
[tex]x=9, AB=BC=AC=35[/tex]
Step-by-step explanation:
Equilateral triangles have 3 congruent sides, so all 3 sides have the same length. Therefore, we know that [tex]AB=BC=AC[/tex]. We are given the lengths of all 3 sides in terms of [tex]x[/tex], but we only need to set two of them equal to each other to solve for [tex]x[/tex]. Let's use [tex]AB[/tex] and [tex]BC[/tex] to solve for [tex]x[/tex]. We know that [tex]AB=BC[/tex], [tex]AB=2x+17[/tex], and [tex]BC=6x-19[/tex]. Therefore, we can write the following equation to solve for
[tex]AB=BC\\2x+17=6x-19[/tex] (Substitute given values into equation)
Solving for [tex]x[/tex], we get:
[tex]2x+17=6x-19\\2x+17-17=6x-19-17[/tex] (Subtract [tex]17[/tex] from both sides of the equation to isolate constants)
[tex]2x=6x-36[/tex] (Simplify)
[tex]2x-6x=6x-36-6x[/tex] (Subtract [tex]6x[/tex] from both sides of the equation to isolate [tex]x[/tex])
[tex]-4x=-36[/tex] (Simplify)
[tex]\frac{-4x}{-4}=\frac{-36}{-4}[/tex] (Divide both sides of the equation by [tex]-4[/tex] to get rid of [tex]x[/tex]'s coefficient)
[tex]x=9[/tex] (Simplify)
Therefore, [tex]AB=2x+17=2*9+17=18+17=35[/tex], and [tex]AB=BC=AC=35[/tex]. Hope this helps!
Questions and problems, down below (:
Which statement about this system of equations is true?
Answer:
A
Step-by-step explanation:
The sum of marshall and williams ages is 27 . William is 7 years older than marshall . What is marshall age
Answer:
10
Step-by-step explanation: 17+10=27, 17-10=7
22 = 5(y – 8) please help me
Answer:
y=12.4
Step-by-step explanation:
22/5 is 4.4
so the numbers in the bracket must equal to 4.4
so y is 12.4
Answer:
62/5 or 12 2/5
Step-by-step explanation:
22 = 5(y-8)
22 = 5y - 40
5y−40=22
Add 40 to both sides
5y−40+40=22+40
5y = 22+40
5y=62
Isolate the variable.
5y/5 = 62/5
what is it called when two lines intersect
Answer:
The point where the lines intersect is called the point of intersection. If the angles produced are all right angles, the lines are called perpendicular lines. If two lines never intersect, they are called parallel lines.
YO I Think ima bout to fall this class
please help meh
( AnSWeR ThE 2 QuEsTioNs)
----Directions are provided in the picture-----
Question 1)
Answer:
The slope between (-5, -20) and (9, 9) is:
[tex]m=\frac{29}{14}[/tex]
Step-by-step Explanation
Given the points
(-5, -20)(9, 9)Finding the slope between (-5, -20) and (9, 9)
[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\left(x_1,\:y_1\right)=\left(-5,\:-20\right),\:\left(x_2,\:y_2\right)=\left(9,\:9\right)[/tex]
[tex]m=\frac{9-\left(-20\right)}{9-\left(-5\right)}[/tex]
Refine
[tex]m=\frac{29}{14}[/tex]
Therefore, the slope between (-5, -20) and (9, 9) is:
[tex]m=\frac{29}{14}[/tex]
Question 2
Answer:
the slope between (18, -5) and (18, 20) is undefined.
Step-by-step Explanation
Given the points
(18, -5)(18, 20)As the x-values of the points are the same. It indicates that the given line is vertical.
Finding the slope between (18, -5) and (18, 20)
Slope = m = [y₂ - y₁] / [x₂ - x₁]
= [20 - (-5)] / [18 - 18]
= [20+5] / [0]
= 25/0
= ∞ or undefined
Thus, the slope between (18, -5) and (18, 20) is undefined. It indicates that the line is vertical.
Hence, the slope between (18, -5) and (18, 20) is undefined.
Solve for x in the figure below
3x-1
21
167°
Answer:
49
Step-by-step explanation:
167 = 21 + (3x - 1)
167 = 20 + 3x
3x = 147
x = 49
Answer is 49
Step-by-step explanation:
167=(3x-1)+21(Exterior angle is equal to two opposite interior angle)
or,167=3x-1+21
or,167=3x+20
or,167-20=3x
or,147=3x
or,x=147/3
or,x=49
The 4 TH grade is collecting bottled water for field day. They would like to collect 100 bottles. Ava brings 4 packs of 6 and Mason brings 3 packs of 12. How many bottles do they still need?
Which is the scatter plot for the data set
{(1960,3), (1970, 3.5), (1980,5), (1990, 6)}?
6
5
.
6
4
4
ОА.
OD.
3+
of 1970 1990
of 1970 1990
1960 1980
1960 1980
6+
1990+
1980+
1970+
1960+
in m
Ов.
OE.
.
4
3+
09
1 1980 1960
1990 1970
6+
5+
4
Ос.
3
1970 1990
1960 1980
Answer:
1970
Step-by-step explanation:
Anthony patella earns 300 a week working part time at his uncles restaurant how much does he make in a year
Answer:
15,600 is how much he will make in a year.
Step-by-step explanation:
There are approximately 52 weeks in a year therefore, 300*52= 15,600
2. Carl bought some stickers on Saturday. He used 9 of them that same day.
When he went back to the store on Sunday, he bought 3 more stickers.
Write an expression that represents the number of stickers Carl has.
PLEASE HELP ME ASAP
Let N be the number of stickers Carl have and K be the number of stickers he bought at Saturday.
[tex]N = K-9 +3[/tex]
[tex]N = K-6[/tex]
48 tulips are planted in this repeating pattern: red, pink-red, yellow what color is the 24th tulip?
Answer:
red
Step-by-step explanation:
Helppppp pleaseeee :))
Answer:
d.11-x<-18
put the value of x in inequality and identify.
Complete the point-slope equation of the line through (-2, 6) and (1, 1).
Use exact numbers.
y - 6 =
Answer: y - 6 = -5/3 ( x + 2)
Step-by-step explanation:
slope = -5/3
point on line = (-2, 6)
Evaluate this expression using the given values for x and y.
1 point
4x² + 13 – 2y when x = 3 and y = 8
Answer:
The answer is 33.
Step-by-step explanation:
4x^2 + 13 - 2y, x=3 y=8
In order to evaluate this, you just need to plug the x and y in the expression:
= 4(3)^2 + 13 - 2(8)
= 4(9) + 13 - 16
= 36 + 13 - 16
= 33
Which of the following is the solution to this system of equations below?
y = 3x + 2
y = x
Answer:
(x,y)=(-1,-1)
Step-by-step explanation:
hope this helps!
4(x-2)/5 = 20
(Yes that’s a fraction)
Solving for x
Answer:
x=27
Step-by-step explanation:
Step 1: Multiply both sides by 5.
4(x−2)
5=20
(4(x−2)*(5)*(5)=(20)*(5)
4(x−2)=100
Step 2: Simplify both sides of the equation.
4x−8=100
Step 3: Add 8 to both sides.
4x−8+8=100+8
4x=108
Step 4: Divide both sides by 4.
4x/4=108/4
x=27
Step-by-step explanation:
(x-2)/5 = 5
(x-2) = 25
x = 27
Please help also can you explain how to answer this if that’s ok?
Answer:
the answer is B
Step-by-step explanation:
you multiply 4 by -5z and 2 and get -20z+8 then you subtract the -6 from 8 and get 2 so -20z+2 a is -20z-2 so its not equivalent but b equals -20z+2 so it's B
what is the answer?
Answer:
f(-3)= -18
Step-by-step explanation:
f(-3) basically means x=-3 so just substitute with that
f(-3)= 2(-3)³+4x²
= -54+36 = -18
Subtract 5r - 2 from -3r + 4
Answer:
-8r+2
Step-by-step explanation:
-3r + 4 - 5r - 2
Combine like terms
-8r+2
Answer:
negative 0.86
Step-by-step explanation:
PLS HELP ILL GIVE BRAINLY: Use the chart above to answer the question below
Which company should you use to rent a lawn mower for 6 hours? Explain.
Answer:
lawns inc.
Step-by-step explanation:
y=10x+15 10(6) + 15 = 75
y=9x+20 9(6) + 20 = 76
Base and height of a parallelogram 12 cm and 8 cm respectively. find its area
please guys give me correct answer
Answer:
96 cm²
Step-by-step explanation:
Area of a parallelogram A = bh where b = base = 12 cm and h = height = 8 cm.
So, A = 12 cm × 8 cm
A = 96 cm²
So, the area of the parallelogram with base 12 cm and height 8 cm is 96 cm².
-3 - 4x ≤ 21
Please help!! The first time I got this answer I got x≤ 5.25 but i know it's not right.
I know there are smarties out there. Please help!!
Answer:
lol
Step-by-step explanation:
Yeah i have no clue but good luck
[tex]-3-4x\leq 21 \\~\\-3-4x+3\leq 21+3 \\~\\-4x \leq 24[/tex]
When you multiply both sides by a negative number, you have to flip the inequality.
[tex]-4x\cdot \left(-\dfrac{1}{4}\right) \geq24\cdot \left(-\dfrac{1}{4}\right) \\~\\x \geq-6[/tex]
You could also solve by doing this:
[tex]-4x \leq 24 \\~\\-4x +(4x-24) \leq 24 +(4x-24) \\~\\-24 \leq 4x \\~\\-6\leq x[/tex]
If -6 is less than or equal to x, then x is greather than or equal to -6.
A high school graduating class is made up of 440 students. There are 168 more girls than
boys. How many boys are in the class?
I
Answer:
272
Step-by-step explanation:
calculator
HEELLPPPPPPPPPPPP.. I NEED THE ANSWER
Find the solution of the system of equations.
2x + 4y = -16
–2x+2y = -2
Submit Answer
Please help me.
Answer:
x=-2 and y=-3
Step-by-step explanation:
2x+4y=-16
-2(-2x+2y=-2)
2x+4y=-16
4x-4y=4
6x=-12
x=-2
2x+4y=-16
2(-2)+4y=-16
-4+4y=-16
+4 +4
4y=-12
y=-3
Answer:
x=-2
y=-3
Step-by-step explanation:
2x=-4y-16 subtract 4y and move to the other side of the equation
x=-2y-8 divide by 2 to isolate x
-2(-2y-8)+2y=-2 plug x into the second equation
4y+16+2y=-2 distribute
6y=-18 combine the Y's and subtract 16 to the other side
y=-3 divide both sides by 6
2x+4(-3)=-16 plug the y value into the first equation to find x
2x-12=-16 distribute (multiply)
2x=-4 add 12 to both sides
x=-2 divide by 2 to get the x value