Answer:
Sorry but you did not add the question.
Step-by-step explanation:
Write a system of equations to solve.
10. A woman's age is three years more than twice her son's age. The sum
of their ages is 84. How old is the son?
11. The length of a rectangle is three times its width. The perimeter of the
rectangle is 100 inches, What are the dimensions of the rectangle?
12. Benecio worked 40 hours at his two jobs last week. He earned $20 per
hour at his weekday job and $18 per hour at his weekend job. He
earned $770 in all. How many hours did he work at each job?
y
13. Choose one of Exercises 1-9 and graph its solution
Does the answer you found by substitution agree
with the answer you got by graphing?
graph #3
Answer:
10: the son is 12
11. W = 12.5 inches L: 37.5 inches
12. 25 hours at his weekday job and 15 hours at his weekend job.
hope you got 13 right! Also I don't really have a step-by-step explanation I kinda just did them in my head so be careful with them. Good Luck!
Step-by-step explanation:
:P
Is (9,5) a solution to the inequality y<5x+9?
Answer:
yes it is because 9 times 5 is 45 plus 9 is 54 and 54 is greater than 5
Answer:
yes, it is
Step-by-step explanation:
i need help on dis asap
Answer:
Step-by-step explanation:
-36-42x^2
-42x^2-36
If you factor it is -6(7x^2+6)
Part of the question is cut off, so I assumed factoring. If didn't please let me know and I can rework it.
Answer:
the answer is -2 ( 21 with the 2 at the top + 16)
Step-by-step explanation:
−
2
out of
−
2
(
21
x
2
)
−
2
(
16
)
.
−
2
(
21
x
2
+
16
)
need help again asap
Answer:
[tex]50^{\circ}[/tex]
Step-by-step explanation:
Complementary angles mean that the sum of the angles add up to [tex]90^{\circ}[/tex]. We can use algebra to solve for [tex]x[/tex] and then to determine [tex]m\angle QRS[/tex].
[tex]m\angle QRS + m\angle SRT = 90[/tex]
[tex]8x+10 + 8x = 90[/tex]
[tex]16x = 80[/tex]
[tex]x = 5[/tex]
[tex]m\angle QRS = 8x+10[/tex]
[tex]= 8(5)+10[/tex] (substitution)
[tex]=50^{\circ}[/tex]
∴ [tex]m\angle QRS = 50^{\circ}[/tex]
Hope this helps :)
Triangle A has side lengths 3, 4, and 5. Triangle B has side lengths 6, 7, and 8.
Give possible side lengths for Triangle B so that it is similar to Triangle A.
A. 6,7, and 8
B. 6,8 and 10
C. 9,12 and 15
D. None of the above
Answer:
C
Step-by-step explanation:
Simplify 9, 12, and 15 by dividing each by 3, in which it equals to 3, 4, 5. the side lengths 9, 12, 15 are the dilated version of 3, 4, 5. I hope this helps!!
A bird food company sells its box of birdseed to the pet shop for $1.89. The pet store uses a 55% markup. What is the pet store price for the box of birdseed?
more than less 55% sell in store bird
1. What are the solutions to the quadratic equation
x2 – 36 = 0
x = 5 and x = -5
x = 6 and x = -6
x = 18 and x = -18
x = 36 and x = -36
Answer:
The answer is X=6 and x =-6
Step-by-step explanation:
Hope this helps :)
HE:LPPPPPPPPPPPPPPP I GOT MORE SO CHECK MY PROFILE
Answer:
21000
Step-by-step explanation:
To find estimate, round all the values to the nearest thousands
5,789 is 6000
8,356 is 8000
6,561 is 7,000
add.
6000+8000+7000
21000
Answer:
21,000
Step-by-step explanation:
Round each number:
5,789 → 6,0008,356 → 8,0006,561 → 7,000Add the rounded numbers:
6,000 + 8,000 + 7,000 = 21,000I hope this helps!
A red cross helicopter takes off from headquarters and flies 120 km at 45 degrees south of west. There it drops off some relief supplies, then flies 125 km at 20 degrees west of north to pick up three medics. If the helicoper then heads directly back to headquarters, find the distance and direction it should fly.
Answer:
129.5km
9.78° North of east
Step-by-step explanation:
Let say HQ is at the origin (x = 0, y = 0)
the coordinates of the helicopter after the 1st flight can be expressed below as
X1= -120 cos45=84.85km
Y1= -120 sin45= -84.85km
its coordinate after the 2nd flight can be expressed as
X2= x1 - 125sin20
= -84.85-42.75
=-127.6km
Y2= y1- 125cos60
=-84.5+62.5
=-22km
The distance and it's direction for it to fly back to its HQ can be calculated as
S= √(22^2 + 127.6^2 )
=129.48km
Tan θ= y2/y1
=22/127.6= 0.1724
Tan-1(0.1724)
= 9.78° North of east
Hence, the distance and direction it should fly is 129.48km and 9.78° North of east respectively
3.2.PS-10
Investors buy a studio apartment for 240,000. Of this amount, they have a down payment of 60,000. Their down payment is what percent of the purchase price? What percent of the purchase price would a $84,000 down payment be?
Answer: 5
Step-by-step explanation:
Plz help me I need the bottom one
Answer:
1/2 inches for the orange slice I'm not sure about the other one..
Erin used 1.6 cups of cheese in a dish that serves 8 people. How much cheese is in serving of Erin’s dish
Answer:
.2 cups of cheese
Step-by-step explanation:
Answer:
0.2
Step-by-step explanation:
Square root of x plus 9 − 4 = 1
Answer:
drrrrrrrrrrrrrrrrrrrrrrrrrrr
Step-by-step explanation:
graph a line with a slope of -7, 4and has a slope of -2/3
Answer:
-2/3 then -7, 4
What is the slope for this graph?
Answer:
y=-3x-3 the slope would be -3
Step-by-step explanation:
What is _=9x5 ......................
Answer:
45
Step-by-step explanation:
find the square root pf 13225 by division method
y – 6 = -3/4 (x - 2)
Line
Answer: Ok, I guess you need to graph, so use a line and graph (0,7.5) and then (10,0)
Step-by-step explanation: Really, if you need a tool that helps you graph fast, just use the website desmos. It helped me a lot, sooo....
X, Y and Z form the vertices of a triangle, where ∠ YXZ = 68°, XY = 7.3m and XZ = 8.3m. Calculate the area of the triangle. Round your answer to 1 DP.
Answer: Area = 28.2m²
Step-by-step explanation: The triangle YXZ is shown in the figure below.
Area of a triangle is calculated by the formula:
[tex]A=\frac{1}{2} (base*height)[/tex]
According to the figure, the base of this triangle is b = 8.3m.
Height is a perpendicular line created from one side and intersecting the opposite angle.
To determine the height, use trigonometric relations to angle 68:
[tex]sin(68)=\frac{h}{7.3}[/tex]
h = 7.3*sin(68)
h = 7.3*0.93
h = 6.8
Now, area of triangle YXZ is
[tex]A=\frac{1}{2} (8.3*6.8)[/tex]
A = 28.2
Area of triangle YXZ is 28.2m².
Find the discriminant of 3x2 - 10x=-2.
Answer:
x= 4/5 or 0.8
Step-by-step explanation:
Answer: im going with the person on top so i dont have to do anything
Step-by-step explanation:
The perimeter of a rectangular garden is 338 m.
If the width of the garden is 74 m, what is its length?
Answer:
l=95
Step-by-step explanation:
Perimeter is all the sides add up. So the equation if you know two of the sides, it should be: 338=(2*74)+(2*l)
Answer:
Step-by-step explanation:
the perimeter is 2w plus 2l
so 338 = 74(2)+2l
338 = 148+2l
190=2l
l=95
your length would be 95 m
Javier wants to buy a new video game that costs $62. Last week he saved $20 for the
game. If he earns $9 per hour at his part-time job, which equation can be used to find the
number of hours, h, Javier needs to work to have enough money to buy the video game?
Answer: 9h + 20 = 62
Step-by-step explanation:
he has 20 dollars now he needs 42 more so 9h is how much he earns multiplied by h how many hours he needs to work and you would add 20 onto that for the money he already saved and set that equal to the amount he needs
(-5,-7) and (3,1)
write equation in point slope form, intercept form, and standard form
Answer:
Please check the explanation
Step-by-step explanation:
Given the points
(-5,-7) (3,1)Determining the slope between the points:
[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\left(x_1,\:y_1\right)=\left(-5,\:-7\right),\:\left(x_2,\:y_2\right)=\left(3,\:1\right)[/tex]
[tex]m=\frac{1-\left(-7\right)}{3-\left(-5\right)}[/tex]
[tex]m=1[/tex]
Writing the equation in point-slope form
As the point-slope form of the line equation is defined by
[tex]y-y_1=m\left(x-x_1\right)[/tex]
Putting the point [tex](-5,-7)[/tex] and the slope [tex]m = 1[/tex] in the line equation
[tex]y-y_1=m\left(x-x_1\right)[/tex]
[tex]y-\left(-7\right)=1\left(x-\left(-5\right)\right)\\[/tex]
Hence, the equation in the point-slope form will be:
[tex]y-\left(-7\right)=1\left(x-\left(-5\right)\right)[/tex]
Writing the equation in slope-intercept form
As the point-slope of the equation is
[tex]y=mx+b[/tex]
where m is the slope and b is the y-intercept
Putting m = 1 and (3, 1) to determine the y-intercept
[tex]y = mx+b[/tex]
[tex]1 = 1 (3) + b[/tex]
[tex]1 = 3 + b[/tex]
[tex]b = -2[/tex]
so putting [tex]b=-2[/tex] and m = 1 in the slope-intercept form
[tex]y = mx+b[/tex]
[tex]y = (1)x + (-2)[/tex]
Therefore, the equation in slope-intercept form is:
[tex]y = x -2[/tex]
Writing the equation in the standard form form
As we know that the equation in the standard form is
[tex]Ax+By=C[/tex]
where x and y are variables and A, B and C are constants
As we already know the equation in slope-intercept form
[tex]y = (1)x + (-2)[/tex]
so just simplify the equation to write in standard form
[tex]y = (1)x + (-2)[/tex]
[tex]y = x - 2[/tex]
[tex]y - x = -2[/tex]
Write an equation of the line graphed
Answer:
x=-1
Step-by-step explanation:
its vertical and that's basically the only thing you can do i guess
SOMEONE HELP PLEASEEE:(
Answer:
It's B
Step-by-step explanation:
Break it into groups
(x^2+3x)+(-5x-15)
Factor it out
x(x+3)-5(x+3)
which equals B
(x+3) (x-5)
What is an example of a rational number that is not an integer?
Answer:
2.5 is a rational number which is not an integer. A rational number is a number which can be written as a ratio of two whole numbers (integers). For example 5 is a rational number since 5 can be written as ratio of 5 : 1 . 5 is also an integer.
1/2 4/3 3/4 all of these are rational but not integers
Simplify the perfect square.
V64
Answer:
8?
Step-by-step explanation:
Do you mean [tex]\sqrt{64}[/tex]? If so, when simplified it becomes 8.
Sophia earns $9 an hour at a Mort's Pizza Palace, working 20 hours per week.
How many hours must Sophia work to buy a new phone that costs $150?*
A. 10
B. 17
C. 20
D. 150
Answer: 17 hours
Step-by-step explanation: she needs 150, she spends 3 and she makes 9 per hour
153/9 = 17
Answer:
17 hours
Step-by-step explanation:
10 x 9 = $90 No
17 x 9 = $153 Yes
20 x 9 = $180 No
150 x 9 = $1,350 No
Brainlest plz
whats the reciprocal of 8/19
Answer:
19/8
Step-by-step explanation:
Step-by-step explanation:
just divide them jk but umm it is 19/8
PLEASE HELP MEEEE!!!
LOOK AT THE SCREENSHOT!!!
If the triangles shown to the right are congruent, write a congruence statement and give a reason why they are congruent.
Are the triangles congruent or not congruent?
A. Not congruent
B. Congruent
Write a congruence statement and give a reason why the triangles are congruent. Choose the correct answer below.
A. ΔSBC ≅ ΔDHF, ASA
B. ΔSBC ≅ ΔDHF, SAS
C. ΔSBC ≅ ΔDHF, SSS
D. The two triangles are not necessarily congruent.
Answer:
please I'm sorry please I don't know the answer please forgive me Okay
