PLEASE HELP
SOLVE THE EQUATION USING ELIMINATION
3x+8y=-5
-2x+2y=18
help me quickly pls i’d really appreciate it <3
Answer:
320 grams
Step-by-step explanation:
8 bats can eat 40 grams of insects per night, and we are trying to figure out how many insects 64 bats can eat. 64 bats is 8 times as many bats as 8 bats, and we find this by dividing 64 by 8. This means they will also eat 8 times as much, so we simply have to multiply 40 by 8 to get 320 grams.
find the unit rate 39 plates in 3 stacks =plates per stack
Answer:
13 plates per stalkStep-by-step explanation:
plz follow me
Answer:
13 plates in one stack.
Step-by-step explanation:
If you divide 39 (the plates) amongst the 3 stacks, you get 13.
Let U = {c, d, e, f, g, h, i) and A = {c, e, h, i). Use the roster method to write the set A'.
A' =
(Use a comma to separate answers as needed.)
HELP MEEE
Given:
The universal set is
U = {c, d, e, f, g, h, i}
The other set is
A = {c, e, h, i}
To find:
The set A'
Solution:
We know that,
Complement of a set A = Universal set - set A
A' = U - A
= {c, d, e, f, g, h, i} - {c, e, h, i}
= {d, f, g}
Therefore, the set A' is A' = {d, f, g}.
Question Help
The number of kilograms of water in a human body varies directly as the mass of the body. An 87 kg person contains 58 kg of water. How many kilograms of water are
in a 78 kg person?
kg of water are in a 78 kg person
Answer:
52kg
Step-by-step explanation:
use cross multiplication method when encounter problems like these
A truck driver drove 13 hours and earned $520. What is the hourly rate?
Answer:
$40
Step-by-step explanation:
520/13=40
Answer:
Step-by-step explanation:
[tex]\frac{\$ 520}{13hr}=\$40/hr[/tex]
please help me with this.
Answer:
Slope=3
Step-by-step explanation:
slope is rise over run, or (y2)-(y1)/(x2)-(x1)
Shelly is searching online for airline tickets. Two weeks ago, the cost to fly from Denver to Orlando was $220. Now the cost is $360. What is the percent increase? What would be the percent increase if the airline charges an additional $50 baggage fee with the new ticket price?
Answer:
38,61 percent
Step-by-step explanation:
Answer:
86.37%
Step-by-step explanation:
360+50=410
410-220=190
190÷220×100%
≈86.37%
investment A save £160 per month for 2 years. 2.5% interest is added to the total amount saved. Investment B invest £3800. Compound interest is added at 3% each year
Answer:
95.42
Step-by-step explanation:
Investment A:
160*24*1.025=3936
Investment B:
3800(1+.03)^2=4031.42
4031.42-3936= 95.42
Investment B is 95.42 more than investment A.
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given,
investment A save £160 per month for 2 years.
2.5% interest is added to the total amount saved.
Investment A:
160×24×1.025=3936
Investment B:
Investment B invest 3800.
Compound interest is added at 3% each year
Convert 3% to decimal value by dividing 3 by 100.
3/100=0.03
P=A(1+r)t
A is initial deposit, r is rate of interest and t is time
3800(1+0.03)²
3800(1.03)²=3800×1.0609
=4031.42
We need to find how much investment B has more than investment A.
To find this let us find difference between investment A and investment B.
4031.42-3936= 95.42
Hence investment B is 95.42 more than investment A.
To learn more on Percentage click:
https://brainly.com/question/28269290
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write two prime numbers whose difference is 10?
Which of the following values is equal to – (–8.2)? (3 points)
a
−8.2
b
0
c
8
d
8.2
Answer:
192-11
13×6
11-10
Cevap Bu Kadar Yaani
What are the steps for solving 6x+2y=4
Answer:
X=4-2y/6
Y=4-6x/2
Step-by-step explanation:
For X:
1) -2y
Once you subtract 2y you are left with 6x=4-2y
2) Divide by 6 on both sides to get x alone
That would give you your answer of X=4-2y/6
For Y:
1) -6x
After subtracting 6x you would have 2y=4+6x
2) Like the steps above, you divide by 2 on both sides and that would give you your answer of Y=4-6x/2
Factor the expression using the GCF. 25b+50
MARKING BRAINLEIST IF CORRECT AND QUICK
Answer:
Step-by-step explanation:
D)
Hope that helps!
r/3 - 9 >= -2
how do i do this?
Answer:
r >=21
Step-by-step explanation:
r/3-9>=-2
r/3>= -2+9
r/3 >= 7
r>=7*3
r>=21
an 800 deposit for 24 months earned $200 in interest. i need to find out the rate, and total value
Answer:
rate: 8.33 dollars per month in interest. total value: $1000
Step-by-step explanation:
Answer:
rate is 8.30 and total value is 1000
Step-by-step explanation:
Find the simple interest earned on a four year CD on a deposit of $2,000.00 with an interest rate of 2.25%. Show all work.
Answer:
$2.19
Step-by-step explanation:
Answer:
I=2000×2.25%×4
I=180
what's the radius for r=13 mm?
Step-by-step explanation:
14 mm³ because the radius is this
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PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
Answer:
(4,0)
Step-by-step explanation:
Give the coordinates of the point obtained from each reflection. (a) Reflect the point (-3, 7) across the y-axis: 00 (b) Reflect the point (-3, 7) across the x-axis: (01)
Answer:
a) Rule for reflection across y - axis:
(x, y) → (-x, y)(-3, 7) → (3, 7)b) Rule for reflection across x - axis:
(x, y) → (x, -y)(-3, 7) → (-3, -7)What is the image of (-9,0) after a reflection over the x-axis?
Answer:
(-9, 0)
Step-by-step explanation:
When a point is reflected over the x-axis, the x-coordinate stays the same but the y-coordinate turns into its opposite. So, the x-coordinate would stay as -9. Because zero is neither negative nor positive, it doesn't have an opposite. So, the y-coordinate would still be 0.
Which of the following gives the definition of dependent?
Answer:
Dependent means to not rely on other people.
Answer:
Option 4 is correct that is the property of two event in which the occurance of one of the event affect the chance of the other occuring
There are 49 students who play percussion which represents 70% of the band how many are in the band ?
Answer:
Step-by-step explanation:
49÷70% = 70. 70 x 70% = 49. The answer is 70 students :)
Can you help me answer this? please
Answer: 1859.5 mini bears
Step-by-step explanation:
From the information given in the question,
10 mini bars = 12.1 grams
10 regular bars = 23.1 gram
1 super bear = 2250 grams
To eat enough mini bears to match the super bears, the number that it'll take will be:
Since 10 mini bars = 12.1 grams
1 mini bear = 12.1 grams / 10 = 1.21 gram
Since 1 super bear = 2250 grams, the number of mini bears needed to equate this will be:
= 2250/1.21
= 1859.5 mini bears
please help me asap!!
Answer:
35
Step-by-step explanation:
what I did was add GJ together and imaged it in my head to see if it would fit... I'm not sure tho
Help&EXPLAIN
Don’t use for points
I’ll report
Answer:
x = 20
Step-by-step explanation:
The picture shows that there is a right angle (this is indicated by the square in between the two straight lines)
every right angle has a total measure of 90 degrees
knowing this we can say: x + 70 = 90 or x = 90 - 70
either way, you would solve this to get x = 20
Line ABC is a straight line
Let n be the product of the two smallest 3-digit prime numbers. Find the sum of the digits of n.
Answer:
Step-by-step explanation:
n = 101 × 103 = 10,403
sum of digits = 8
When playing the roulette at a casino, you have exactly 1/35 chance of winning in each round if you play a single number. Your friend has rigged up some fireworks to be set off when you win. When you win, he sets off the fireworks every time. When you don't win, he accidentally sets off the fireworks 10% of the time. If you failed to see the outcome of a round, but you see the fireworks going off, then what is the probability that you actually won that round?
Answer:
0.2275 = 22.75% probability that you actually won that round
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]
In which
P(B|A) is the probability of event B happening, given that A happened.
[tex]P(A \cap B)[/tex] is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Fireworks going off
Event B: You won
Probability of fireworks going off.
100% of 1/35 = 0.0286(when you win)
10% of 34/35 = 0.9714(you lost). So
[tex]P(A) = 0.0286 + 0.1*0.9714 = 0.12574[/tex]
Probability of you winning and fireworks going off:
100% of 1/35, so [tex]P(A \cap B) = 0.0286[/tex]
If you failed to see the outcome of a round, but you see the fireworks going off, then what is the probability that you actually won that round?
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.0286}{0.12574} = 0.2275[/tex]
0.2275 = 22.75% probability that you actually won that round
-x²-2x+7=-17 help lol