Systems of equation:substitution
The 2 problems in here i need done by 11:00pm est
8:00pm pst
Answers
Step-by-step explanation:
8)
describe y in terms of x
y=5+x
so now replace y with terms of x
5+x+3x=37
4x=32
x=8
y=13
9)
do the same here
x=y+1
2y+x=19
2y+y+1=19
3y=18
x=6
y=7
Related Questions
PLS HELPP I REALLY NEED HELP ON THIS I WILL MARK YOU BRAINLIEST
Answers
Answer:
b
Step-by-step explanation:
If the scale is 1cm = 4in, and you have 6cm, you need to multiply 4 by 6.
b) 40in
You need to multiply 10 by 4.
Hope this helps x
What is the inequality shown with image attached
Answers
Answer:
-3>=x this is because the circle is closed as well as the arrow going the opposite from -3
Step-by-step explanation:
Find the side length of an equilateral with a height of 30 yards? Pls explain and I will mark brainliest!
Answers
Answer:
B. 20√3Step-by-step explanation:
The height of the equilateral triangle with the side x is:
h² = x² - (x/2)²h² = 3/4x²h = x*√3 / 2We have h = 30, then find the value of x:
30 = x*√3 / 2x = 60/√3x = 60√3/3x = 20√3Correct choice is B
Answer: B
Step-by-step explanation: Because mhanifa said so and he is always right
Need help quick Picture provided
Answers
Answer:
I think 22.5
Step-by-step explanation:
okay so we know that lines bc and pf equal eachother
18/8 = 2.25 this is the scale factor
10 times 2.25 is. 22.5
I think it would be 22.5
A lacrosse player throws a ball into the air from a height of 8 feet with an initial vertical
velocity of 32 feet per second. What is the maximum height of the ball? When will the ball hit the ground?
Answers
Answer:
256Step-by-step explanation:
Read the answer carefully and then you'll know hey i need to multiply 8 times 32.
And what do you get...... 256Modeling the situation with a quadratic equation, it is found that:
The maximum height of the ball is of 60.2 feet.The ball hits the ground after 3.39 seconds.Considering the gravity, the height of the ball, after t seconds, is given by the following quadratic equation.
[tex]h(t) = -4.9t^2 + v_0t + h_0[/tex]
In which:
[tex]v_0[/tex] is the initial velocity.[tex]h_0[/tex] is the initial height.In this problem:
Height of 8 feet, thus [tex]h_0 = 8[/tex].Initial velocity of 32 feet per second, [tex]v_0 = 32[/tex]The equation is:
[tex]h(t) = -4.9t^2 + 32t + 8[/tex]
Which is a quadratic equation with [tex]a = -4.9, b = 32, c = 8[/tex].
The maximum height is the output of the vertex, which is:
[tex]h_{MAX} = -\frac{\Delta}{4a} = -\frac{b^2 - 4ac}{4a}[/tex]
Then, with the coefficients of this question:
[tex]h_{MAX} = -\frac{32^2 - 4(-4.9)(8)}{4(-4.9)} = 60.2[/tex]
The maximum height of the ball is of 60.2 feet.
It hits the ground at t for which [tex]h(t) = 0[/tex], thus:
[tex]\Delta = b^2 - 4ac = 32^2 - 4(-4.9)(8) = 1180.8[/tex]
[tex]t_{1} = \frac{-32 + \sqrt{1180.8}}{2(-4.9)} = -0.12[/tex]
[tex]t_{2} = \frac{-32 - \sqrt{1180.8}}{2(-4.9)} = 3.39[/tex]
We want the positive value, so:
The ball hits the ground after 3.39 seconds.
A similar problem is given at https://brainly.com/question/24626341
1+ 1092 divided by 63 mulitlpyed by 45 =
Answers
Answer:
780.714
Step-by-step explanation:
Answer:=781
Step-by-step explanation:
Please can i have the correct answer this is a important test
I will mark you brainliest
I just need part B only
Answers
Answer:
thin think back to wen you were l lerning about it come on you can do it
Evaluate the expression when g = 28 and h=6.
G-3h
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Answer:
hi Ion know but can u help me on my question
0.2(10-5c)=5c-16
answer correctly or reported
Answers
Answer:
c=3
Step-by-step explanation:
0.2(10-5c)=5c-16
2 - 1c = 5c - 16
2 = 6c - 16
18 = 6c
3 = c
Use this diagram and information given to find m_DFC.
B
C с
А
F
KE
D
Given: m_AFB = m_EFD = 35°
Points B,F,D and points E, F, C are collinear.
The measure of ZDFC is 9
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EXPLAIN how you would graph the line y = 1/3x + 5
Answers
Answer:
Okay so this is the best way to explain it, its already in y=mx+b form which is the easiest way to graph something, its where m= slope and b=the y-intercept so 1/3 is m so the slope is 1/3 but first we need to mark the y coordinate which is 5, so on your graph dot (0,5) then from that go up 1 and right 3 then that should be your graph!!! I've included pictures to help you know what it should look like.
Step-by-step explanation:
Please look at pictures below!! This is the best explanation i could give, Hope this helps!!!
you save $15 per week to purchase a bike that costs $120. write and solve an inequality to find the number of weeks you need to save to purchase the bike.
Answers
Answer:
Must save 8 weeks or more to purchase the bike.
Step-by-step explanation:15*w >= 120 where W is the number of weeks.
w >= 120/15 = 8
You need to save $15 every week for the next 8 weeks in order to purchase the bike.
What is inequality in mathematics?In mathematics, an inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions.
Given is that you save $15 per week to purchase a bike that costs $120.
Assume that you need [w] weeks to save $120 for the bike.
Amount earned per week [A] = $15
Amount earned in [w] weeks [W] = $15w
Money needed [R] = $120
The inequality can be written as -
[W] ≥ [R]
We can write it as -
15w ≥ 120
Solving the inequality, we get -
15w/15 ≥ 120/15
w ≥ 8
Therefore, you need to save $15 every week for the next 8 weeks in order to purchase the bike.
To solve more questions on inequalities, visit the link below-
brainly.com/question/26434651
#SPJ5
Find the slope of the line that passes through E(6, 8) and F(6, −2) .
Answers
Answer:
y=0
Step-by-step explanation:
The two points if graph make a horizontal line. A horizontal line slope is 0
In a circle with a radius of 21 5/8 yd, an arc is intercepted by a central angle of 5pi/6 radians... What is the arc length?
Answers
Answer:
the circle is 2pi radius
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
what is the volume of a cuboid with just 3cm labelled
Answers
If 1 sec = 5 dots how many dots will there be in 20 secs
Answers
Which function is linear
A. F(x) = |3x| + 4
B. F(x) = 1/3x + 4
C. F(x) = 3x - 4
D. F(x) = |3x| - 4
Answers
Answer:
D. F(x) = |3x| - 4
Step-by-step explanation:
Do u want th then answer this
Answers
Answer:
i cant see the image it's small
Step-by-step explanation:
Malik can spend no more that $24 to buy pecans and cashews. He will spend $6 per
pound for pecans and $8 per pound for cashews. Which graph represents the number
of pounds of pecans and the number of pounds of cashews Malik can buy?
Answers
Answer:
Graph D
Step-by-step explanation:
We can look at the number of pounds of pecans and cashews, shown on the x- and y-axis, respectively.
All of the graphs have an x-intercept of (4, 0), meaning that the number of pecans being bought is 4 lbs.
Since pecans cost $6 per lb, we can multiply the cost by 4 in order to make sure that the total cost is not exceeding $24.
$6 · 4 lbs = $24Let's look at the y-axis to see how many lbs of cashews Malik can buy. The y-intercept is (0, 3) for all graphs, meaning that 3 lbs of cashews are being bought.
Since cashews cost $8 per pound, we can multiply the cost by 4 in order to make sure that the total cost is not exceeding $24.
$8 · 3 lbs = $24The shaded area represents the values that can be used in the problem. Since we want $24 or less, the shaded region has to be below the line.
Malik can spend no more than $24, so the line should be solid since this means that the values the line touches are inclusive. 4 lbs of pecans and 3 lbs of cashews should be inclusive.
The graph that has all of these properties is Graph D.
please help me with these last ones i need
Answers
Answer:
20 8 12 10
Step-by-step explanation:
Answer:
for 5. the answer is 15.
for 6. the answer is 8
Step-by-step explanation
hope this helped u again!!!!!!!!!!!!!!!!!!!!!!
WILL MARK BRAINLIEST IF GOTTEN RIGHT
Answers
Answer:
85
Step-by-step explanation:
Dont need to explain it quik mafs
The waiting time to ride a roller coaster is 1/3 of an hour when 150 people are in line. How
long is the waiting time when 240 people are in line? Write an equation and solve.
Answers
Answer:
[tex] \frac{66}{125} [/tex]
hours
Hope it helped
PLS mark BRAINLIEST
Find the area of this parallelogram. 9cm 12cm 21cm
Answers
Answer:
2268cm^2
Step-by-step explanation:
Area of a parallelogram is L×B×H
9cm×12cm×21cm= 2268cm^2
Answer:
189
Step-by-step explanation:
B × H =
12× 9 =
= 189 hfjxijdkvkis
YO SOMEBODY HELP PLS IM STUCK
Answers
Answer:
Step-by-step explanation:
Thank me later
its - 5 why becase look at the question if im wrong sorry
its - 5
IT AN EMERGENCY PLEASE ANSWER FAST
Answers
Answer:
Area= (22/7)* (8x^2y^8z^16)/2* (8x^2y^8z^16)/2
Step-by-step explanation:
Diameter= 8x^2y^8z^16, So Radius= (8x^2y^8z^16)/2
Area of circle= pie* r*r
= (22/7)* (8x^2y^8z^16)/2* (8x^2y^8z^16)/2
Find the unit rate. Round to the nearest hundredth, if necessary.
$250 for 17 ft2
The unit rate is
Juft?
?
Answers
Answer:
240
Step-by-step explanation:
it says I have to explain dunno how soon
Help, I'm confused. Will mark brainliest.
Answers
Betty has 427 oranges and needs to pack them up equally in 23 boxes. How
many oranges go in each box and how much does she have left over
Answers
it's 18 with a remainder of 13. I attached a photo that shows the work of it
What is the probability of rolling a 3 on a 6-sided number cube and then NOT rolling a 3 on a 6-sided number cube?
36
Answers
There's a 1 in 6 chance of rolling a 3 on a 6-sided number cube; there's a 5 in 6 chance of rolling not-a-3 on a 6-sided number cube; thus, the chance of rolling a 3 that is immediately followed by a not-3 is:
(1/6) times (5/6) = (5/36)
8 + 25 x 2 to the power of 2
Answers
Answer:
3,364
Step-by-step explanation:
8 + 25 x 2
To solve this one, you multiply first according to PEMDAS. So,
25*2= 50
It is now 8+50 so you add that and you get 58
Now 58 with a power of 2 can als be written as 58^2
Basically you multiply 58 two times.
58*58=3,364
3,364
Hope this helps!!
-Ketifa
(Can I get brainliest?)