Answer:
The population of last year was 60.
Step-by-step explanation:
From the information given, as you know that the number of fish in a lake decreased by 25% between last year and this year, the amount of fish this year represents 75% of last year's population as: 100%-25%=75%. With that, you can use a rule of three to find last year's population tha would represent 100% given that 75% is equal to 45 fish.
75% → 45
100% → x
x=(100*45)/75= 60
According to this, the answer is that the population of last year was 60.
Factor -5 out of -5d + 30
Answer:
ans below
Step-by-step explanation:
-5(d+6)
Answer:
-5(d-6)
Step-by-step explanation:
When factorising, you need to factorise from all the terms.
Factorising -5 from:
-5d: -5d ÷ -5 = d
30: 30 ÷ -5 = -6
Thus, the answer is -5(d-6)
How many solutions exist for the given equation?
3x + 13 = 3(x + 6) + 1
Answer:
no solution
Step-by-step explanation:
3x + 13 = 3x + 18 +1
<=> 0x = 6 (impossible!)
Answer:
zehero
Step-by-step explanation:
Q5.
Make t the subject of the formula
t +1
m =
t-3
can someone help please
Solve for brainlist ❤️❤️
Answer:
(68/4) multiply by 3601
Step-by-step explanation:
What is the square root of ab2?
Answer:
ab
Step-by-step explanation:
The square root cancels out the squaring exponent
Determine if the following triangle is a right triangle or not using the Pythagorean Theorem Converse. Triangle with side lengths of: 6 yd, 10 yd, and 8 yd
False, these measures do not form a right triangle.
True, these measures do form a right triangle.
Answer:
True, these measures do form a right triangle.
Step-by-step explanation:
Pythagorean Theorem: a^2 + b^2 = c^2
(6)^2 + (8)^2 = (10)^2
36 + 64 = 100
100 = 100
So, its true these measurements do form a right triangle.
Express each ratio as a unit rate. Round to the nearest tenth, if necessary.
140 miles on 6 gallons
a.23.3 mi/gal
c.0.042 mi/gal
b.840 mi/gal
d.13.6 mi/gal
Answer:
a
Step-by-step explanation:
because I heard that it was subject to the same time period in which the most popular ob on pov and i was in the empty classroom But I think I can dye my hair It is the most popular ob on pov and i was in the car atm but my phone said the time was the only one ☝
What is the solution to the equation shown below?
2
32 +5=1
A) X= -6
B) X= 4
C) X= -4.5
D) X= 9
Answer:
Step-by-step explanation:
Here you go mate
Step 1
2/3x+5=1 Equation
Step 2
2/3x+5=1 Simplify
2/3x=-4
Step 3
2/3x=-4 Simplify
answer
x=-6
Plz, HELP! Heather earned 750$ at a summer job and deposited it in a bank. The savings account paid 3% simple annual interest. What is the balance in her account at the end of four years? Please Answer correctly and explain your answer. :D
Answer: 844.131607
Step-by-step explanation:
750/100=7.5
7.5 is 1%
22.5 is 3%
YEAR 1 (750+22.5) 772.5
772.5/100
7.725 is 1%
23.175 is 3%
YEAR 2 (23.175+772.5) 795.675
795.675/100
7.95675 is 1%
23.87025 is 3%
YEAR 3 (23.87025+795.675) 819.54525
819.54525/100
8.1954525 is 1%
24.5863575 is 3%
YEAR 4 (24.5863575+819.54525) 844.131607
:D Done! Please give me brainliest! It took alot of time for me to do this!
Directions: Find the value of x.
Round each answer to the nearest tenth.
Answer:
this answer is not available at the moment
Step-by-step explanation:
i am trying to solve question two with the graphing method but can’t figure out how because there is only y=2.
Answer: look in the explanantion :)
Step-by-step explanation:
So basically when something is y=2, that means that its just a horizontal line at the number 2
so it would just be a straight horizontal line that is located at the y point of 2
Jenn wants to measure the height of a tree. She walks exactly 125 feet from the base of the
tree and looks up. The angle of elevation from the ground to the top of the tree is 33º. How
tall is the tree? Which equation would be used to solve this problem?
Answer:
[tex]81.2\:\mathrm{ft}[/tex]
Step-by-step explanation:
We can form a right triangle and use basic trig for a right triangle to solve this problem:
[tex]\tan33^{\circ}=\frac{h}{125}[/tex], where [tex]h[/tex] is the height of the tree.
Solving, we get:
[tex]h=125\cdot \tan 33^{\circ},\\h\approx \fbox{$81.2\:\mathrm{ft}$}[/tex].
Use the diagram to the right to complete the statement. If m
m
HURRY PLEASE WILL MARK BRAINLIEST!!!!!
Answer: 80 perhaps
Step-by-step explanation:
Answer:
the answer is c 40 ft because to find the area is half of base times height
Step-by-step explanation:
8 times 10 = 80
80/2= 40
The Video Rental Club charges a $5 monthly fee and $2.00 charge for each
video rental. The total cost for monthly video rentals depends on how many
movies a member rents. The table below represents the total cost of video
rentals per month.
videos (V)
0
1
2
3
4
monthly cost (c)
$5
$7
$9
$11
$13
Which equation represents the relationship between the cost, c, and the
number of videos, V?
C. c = 2V + 5
D. c = 5v + 2
A. c = 2v
B. C = 5v + 5
Answer:
C=2v+5
Step-by-step explanation:
C=2v+5
I got this because its 2 dollars PER video plus 5 a month
Find X in this picture.
Answer:
x is in the top left of the triangle :)
Step-by-step explanation:
Answer:
its there....
Step-by-step explanation:
Help or I will die pleaseeeee
Answer I think and you can't get help on a quiz
mia i was there for u all the time i literally helped u and ur mom pay off stuff and you tell me you dont wanna be friends anymore cus im black? thats so disgusting and hurtful bc a 7 yr friendship is down the drain because of my skin color ur dad is black inculding your grandpa so what do u mean just bc you look white dont mean u are ur mixed. so the fact u would even have the audacity to say that hurts me pretty bad and ik you wouldnt say that to ur dad.
Answer:
:( we will all be here for you m :)
Step-by-step explanation:
Answer:
Ong she woulda had to see the hand.
Step-by-step explanation:
...
Which of the following statements is TRUE?
ps=10/3
pq=10
pr=10
sr=10/3
Answer:
10/3
Step-by-step explanation:
Answer: give that person brainliest
Step-by-step explanation:
At 3pm the outside Temperature was 4°F . The Temperature then fell steadily by 2°F every hour for the next four hours . What was the temperature at 7 PM
Answer:
Step-by-step explanation:
Temperature at 3pm: 4° F
After the decrease in temperature per hour by 2°F
Temperature at 4pm: 2°F
Temperature at 5pm: 0°F
Temperature at 6pm: -2°F
Temperature at 7pm:-4°F
Hence we can say that the temperature at 7pm is -4°F
Which Unit lengths represent the sides of a right triangle
A. 3,4 and 5
B. 6, 8 and 15
C. 20, 21 and 29
D. 9, 12 and 15
Answer:
A 3, 4 and 5
Step-by-step explanation:
Find the measure of
The table shows the colors of marbles in a bag.
hat is the ratio of green marbles to the sum of red and yellow marbles in the bag?
Answer:
12:18
Step-by-step explanation:
Answer:
2:3
Step-by-step explanation:
green marbles: 12
red+yellow: 18
12:18
(divide by 6 on both sides)
2:3
Use the replacement set {4, 8, 21} to find the solution of the equation
7n - 4 = 24.
Answer:
n=4
Step-by-step explanation:
7n - 4 = 24
24 + 4 = 28
7n = 28
n = 4
OR plug in the sets you gave and see if they equal 24
PLEASE HELP! NEED HELP NOWWWW!!!! PLS! HELPPPP
Write the linear equation for the following word problem:
Tickets for the school play are $4 in advance and 5$ at the door. Total ticket sales were $440
Estimate a 10% tip on a bill of $179.54 by first rounding the bill amount to the nearest ten dollars.
Answer:
Step-by-step explanation:
First we start off by rounding that number to the nearest ten, not tenTH. This rounding would lead to 180$. Now comes the percent part. Here i use the percent equation, which is ____ is ____% of _____. our percent is 10%, and our whole goes at the end, 180$. The part( or the tax), becomes x, and now we translate. Is means = and of means times. so x=.10(180), and x will equal 18
so the tip will be around 18 dollars
hope it helped
need help please!!!!
Answer:
correct and incorect
Step-by-step explanation:
Help no explanation just answers plz, theres no multi choice
Answer:
A b or c
Step-by-step explanation:
Easy shahhshhshs free points hehe
Challenge!
A. 13
B. 24
C. 6
D. 34
Answer:
A. 13.
Step-by-step explanation:
x + 9 = 2(3x - 38)
X + 9 = 6X - 76
85 = 5x
x = 85/5
x = 17
So RS = 3(17) - 38
= 51 - 38
= 13
Four different stores posted ads on special 15-oz cans of baked beans -8 for $6 = 75 cents per can -10 for $10 = $1 per can -2 for $3 = $1.50 per can -80 cents per can The last store listing was selling 28-oz of baked beans for $1.40 each. How does that price compare to the other prices?
Answer:
75 cents per can
Step-by-step explanation:
8 for $6 = 75 cents per can
10 for $10 = $1 per can
2 for $3 = $1.50 per can
The last store sold 28-oz for $1.40 each
To obtain the cost per 15-oz can of baked beans
28-oz / 15-oz = 1.86667of 15 - oz cans of baked beans can be obtained from 28 - oz.
The price per can will now be :
$1.40 / 1.8666666
= $0.75
= 0.75 * 100 = 75 cents
Hence, for the last store, they sold at 75 cents per can similar to the first store.
Answer:
75
Step-by-step explanation:
it is