Answer:
The answer is C
Step-by-step explanation:
Ms. Hall wants to buy 30 fruit trees to plant on some land she just bought. She wants to plant only apple and peach trees. Each apple tree costs $22 and each peach tree costs $28. She has $720 to spend on trees.
Answer:
You would have to spend 674 dollars on trees if you only wanted to buy 30.
Step-by-step explanation:
22 times 15 = 264
28 times 15 = 420
Add them and you get 674
Jose's gas tank is 1/5 full. After he buys 9 gallons of gas, it is 7/10 full. How many gallons can Jose's tank hold?
Answer:
18 gallonsStep-by-step explanation:
Let the capacity of tank is x
1/5x + 9 = 7/10x2/10x + 9 = 7/10x5/10x = 91/2x = 9x = 18 gallonsA high school marching band has 55 male members. It is determined that five-eighths of the band members are male. How many members are in the band?
Answer:
There are 88 members.
Step-by-step explanation:
Let all the members of the band be ‘x’.
= 5/8 * x = 55
x = 88
Please help will give brainliest
Answer:
(5j + 4k)2
2(5j + 4k)
Step-by-step explanation:
Only choices where it distributes 10j + 8k
Answer: 2(5j+ 4K) and (5j+4k)2
Hope this helps!
Step-by-step explanation:
Lakmini decided to measure the circumference of the Earth
using a very long tape measure. She held the tape measure
Im from the surface of the (perfectly spherical) Earth all the
way round. When she had finished her friend said that her
measurement gave too large an answer and suggested taking
off 6 m. Was her friend correct?
[Take the radius of the Earth to be 6400 km (if you need it).]
Answer:
Step-by-step explanation:
[tex]\Delta C=2\pi(r_2-r_1)\\ \\ \Delta C=2\pi(6400001-6400000)\\ \\ \Delta C=2\pi\\ \\ \Delta C\approx 6.283m\\ \\ \text{So taking off 6 meters is reasonable.}[/tex}
A "triply" number is a two digit number equal to three times the product of its digits. List all the triply numbers.
Answer: ONLY 15, and 24 there are not more 2 digit triply numbers i have checked all the 2 digits numbers ranging from 10 to 99
Yes there are only 2 triply numbers! Isnt it shocking! I have tried for 2 digit triply numbers from 10 to 99! Yes i did that! Lets go through a basic idea first the product of its digits mean that you mulitply whatever number your checking for a triply number. Example: your checking 15 for a triply number so 1 x 5 = 5 ( you multiply the digits in the 2 digit number to find the product of its digit)! What does 3 times the product of its digits then? hmmmmm. we know that 15's product of its digit is 5 so we mulitiply 5 x 3 because it says three times the product of its digits.
Step-by-step explanation:
15 = 1 x 5 = 5 (we do 1 x 5 because we need to find the product of its digits and to do that we multiply the digits together in the 2 digit number).
5 x 3 = 15 (we multiplied 15 x 3 because it says 3 times the product of its digits. we know the product is 5 and 3 times is multiply by 3 so we do 5 x 3 which equals to 15).
So 15 is a triply number because in the second step when we multiplied 5 x 3 we got 15; and we were checking if 15 was a triply number; because we got 15 as the answer in the second step it is a triply number).
24 = 2 x 4 = 8
8 x 3 = 24
so we got 24 as the answer again in the second step which means that 24 is a triply number.
In short, you multiply the digits in the number then whatever you get as the answer you multiply it by 3. if you get the digits from te number that you multiplied then you know that number is a triply number. from the number 10 to 99 there are ONLY 2 NUMBERS. I saw people only give 2 numbers online and i was like why does no one give all the triply but in reality there are only 2 triply numbers which are 2 digits. You can check for yourself if you dont believe me using the method above. Thank you! I hope it helped if it helped please give me a thumbs up!
We will find that the "triply" numbers are:
-15, 15, -24, 24.
How to find the "triply" numbers?We know that these aer two-digit numbers, so we can write them as:
a*10 + b
Where a and b are single-digit numbers.
A "triply" number is equal to 3 times the product of its digits, then we must have:
a*10 + b = 3*(a*b)
Moving all to one side, we have:
10a + b + 3ab = 0
So a "triply" number must meet the above criteria.
Now, the values that can take b are all the single-digit values {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
So now we need to evaluate b and find the possible vales of a.
if b = 0, then:
10*a + 0 - 3*a*0 = 0
10*a = 0
Then a = 0, but this will not give a 2-digit number.
if b = 1 then:
10*a + 1 - 3*a*1 = 0
10*a - 3a = -1
7*a = -1
a = -1/7
This is not a single-digit number.
if b = 2
10*a + 2 - 3*2*a = 0
4*a = -2
a = -2/4
This is not a single-digit number.
if b = 3
10*a + 3 - 3*3*a = 0
a = -3
a should be positive.
if b = 4 we have:
10a + 4 - 12a = 0
-2a = -4
a = -4/-2 = 2
So this gives the number 24.
if b = 5 we have
10a + 5 - 15a = 0
-5a = -5
a = -5/-5 = 1
So this gives the number 15
if b = 6
10a + 6 - 18a = 0
-8a = -6
a = -6/-8
This is not a single-digit.
if b = 7
10a + 7 -21a = 0
-11a = -7
a = -7/-11
At this point we can see that for larger values of a, we will not get more tripply numbers.
So the only "triply" numbers are: 15 and 24 (and their opposites, -15 and -24).
If you want to learn more about evaluating equations, you can read:
https://brainly.com/question/4344214
RHS IS COT4A PLEASE SOLVE ITS URGENT
Answer:
Step-by-step explanation:
If the R.H.S. is cot(4A), given question is misprinted.
It should be,
[tex]\frac{1}{\text{tan3A+tanA}}-\frac{1}{\text{cot3A+cotA}}[/tex]
= [tex]\frac{1}{\text{tan3A+tanA}}-\frac{1}{{\frac{1}{\text{tan3A}}+\frac{1}{\text{tanA}}}}[/tex]
= [tex]\frac{1}{\text{tan3A+tanA}}-\frac{1}{\frac{\text{tanA+tan3A}}{\text{tanAtan3A}}}[/tex]
= [tex]\frac{1-\text{tanAtan3A}}{\text{tanA+tan3A}}[/tex]
= [tex]\frac{1}{\text{tan}(A+3A)}[/tex]
= cot(4A) [R.H.S.]
Hence proved.
After spending 5/9 of his money, David has
$36 left. How much money did he have at first?
HELP ME PLEASE 10 points!!!!!
tamika has $55 in her savings account. She plans on depostiting $5 per week into her account. Write and solve an inqequality to find out how many weeks she must save to have more than $100 in her account. Then interpet the solution
Answer:
x>9
Step-by-step explanation:
Tamika already has $55, which will stay the same independent of how much time passes. Since she deposits $5 per week, we can assign weeks a variable x. The amount of money in her account after x weeks is equal to 55+5x. If she must save over $100, we can create an inequality to solve for how many weeks must pass: 55+5x>100.
The question also asks to solve the inequality:
55+5x>1005x>100-55 (Subtract 55 from each side)5x>45x>9 (Divide each side by 5)This solution tells us that Tamika must save for more than nine weeks to have more than $100 in her account.
lmk if i made an error, hope this helps!!
21 x ________ ÷ 3 = 21 *
1. 7
2. 21
3. -3
4. 3
b x h ÷ h = ________ *
1. a
2. h
3. b
4. c
876 x 3.2 ÷ ______ = 876 *
1. 3.2
2. 876
3. -3.2
3. 1
what are the answers?
Answer:
first one: 3
second one: b
third one: 3.2
Step-by-step explanation:
first one:
21 x ________ ÷ 3 = 21
rewrite equation:
21 ÷ 3 x ___ = 21
7 x ___ = 21
(21 / 7 = 3)
7 x 3 = 21
second one:
b x h ÷ h = ___
B
third one:
876 x 3.2 ÷ ______ = 876
2803.2 ÷ ___ = 876
(2803.2 / 876 = 3.2)
2803.2 x 3.2 = 876
the length of a rectangle multiplied by 3 is equal to 4 times its width
Answer:
12
Step-by-step explanation:
1. Both of the equations shown have the same solution when solved for x. What is
the value of k? Show or explain all your work. *
5x + 34 = -2 (1 – 7x) and – 3 (4x + 3) + 4 (6x + 1) = k
Your answer
PLS HELPPPP
Answer:
Step-by-step explanation:
What is 3 divided by 6 Keep change flip?
Step-by-step explanation:
Multiply by the reciprocal, also sometimes referred to as "Keep, Change, Flip." Here is how it works. You rewrite the division question as a multiplication question by flipping the second fraction over. Next, keep the first number, change the division to multiplication and then flip the second fraction over.
[tex]4x(2xy + 3xy) + 5x(3xy + 2xy)[/tex]
Find the length of side AC.
Give your answer to 1 decimal place.
68°
A Α'
B
7 cm
Answer:
17•2cmStep-by-step explanation:
using TOAtan = opp/adj68 = opp/7
opp= 7tan68
opp= 17•2cm
Please answer. And I will literally pay somebody 5-10 dollars to do my math homework. Let me know if interested
Answer:
6x-1
f(x=3x-2)= 6x-1
PLEASE IM TIMED
After simplifying, what will x be equivalent to?
a5*a6=ax
Answer:
x= a10
Step-by-step explanation:
3x+21 =6x-60
What is x?
Find the sum of (3x^7 - 4x^5 + 3) and (2x^6 - x^5-3).
Answer:
3x^7+2x^6-5x^5
Step-by-step explanation:
(3x^7-4x^5+3)+(2x^6-x^5-3)
3x^7-4x^5+3+2x^6-x^5-3
3x^7+2x^6-4x^5-x^5+3-3
3x^7+2x^6-5x^5
Adam can buy pencils in packages of 12 for $2.19, 40 for $3.99, 50 for $4.75, or 100 for $10. How many pencils are in the package with the lowest unit cost
Answer:
50 pencils
Step-by-step explanation:
2.19/12 = .18
3.99/40 = .09975
4.75/50 = .095
10/100 = .10
Although with mark-up to the hundredths place, there wouldn't be a logical difference is stores...
Answer:
50 for $4.75
Step-by-step explanation:
First step is to determine the unit cost of each pencil:
price of pack / number of units = cost per pencil
1. $2.19 / 12 = $0.1825
2. $3.99 / 40 = $0.09975
3. $4.75/ 50 = $0.095
4. $10 / 100 = $0.10
The correct answer is $4.75 for 50 pencils because it is the lowest per unit cost.
I don’t know which trig function I’m supposed to use for this problem. Please help
Answer:
steps below
Step-by-step explanation:
cos 23° = 6/x
0.92 = 6/x
x = 6/0.92 = 6.52
Ill give brainilest, question is in the picture.
Step-by-step explanation:
1. true
2. false
3.true
4.false
5. ( may be false)
6 .(may be false)
What is x=
In this problem I’m a bit confused for this one
Answer:
X=40°
Step-by-step explanation:
110-70=40
I am pretty sure that is how you do it
Answer and Step-by-step explanation:
1st. Agh my eyes!
2nd.
We see the two curved parts on the figure, this means those angles are congruent. That means x is congruent to that other angle.
We see the box type angle on the bottom. That is a right angle. It represents 90 degrees.
Pentagon's interior angles add up to be 540.
So, add them up together, equal to 540, and solve for x.
540 = 70 + x + x + 110 + 90.
540 = 260 + 2x
270 = 2x
135 = x.
The angle x is equal to 135.
#teamtrees #PAW (Plant And Water)
Question is in the picture, will give brainliest
Answer:
bottom left answer
Step-by-step explanation:
Help plsssss!!!!!! With this question!!!!
Answer:
[tex]\sqrt[3]{27}[/tex]
Step-by-step explanation:
Let's split the cube root of 27 to make this easier:
[tex]\sqrt[3]{27}=\sqrt[3]{3\cdot9}=\sqrt[3]{3\cdot3\cdot3}\\\text{Now, let's put }3\cdot3\cdot3 \text{ in exponential form. We would have:}\\\sqrt[3]{3^3}\\\text{Now, the 3 and 3 and the square root symbol would cancel out, and we }\\\text{ would be left with 3. And since three is an integer, we know that} } \sqrt{27} \text{ is perfect }[/tex]
What is 670 divided by 555
Answer:
1.081081081
hope this helped
Plz plz plz plz help pppppppppppp
Together Jason and Judy have read 24 mystery novels. Judy has read less than three times as many as Jason. How many mystery novels have each of them read.
Omitted / Incomplete Question : Judy has read 4 Less than three times as many as Jason
Answer:Jason has read 7 mystery novels and Judy has read 17 mystery novels
Step-by-step explanation:
Total number of mystery books read by Jason and Judy =24
Let Number of mystery books read by Jason=x
and Number of mystery books read by Judy= 3x-4
So that the total number of book read by both of them will be expressed as
x +(3x-4) =24
x +3x-4 =24
4x=24+4
4x=28
x=28/4=7
There fore Jason has read 7 mystery novels
and Judy = 3x-4 = 3 X 7- 4 =21-4=17mystery novels
I need help with this question!!
Can someone give me the correct answer
I will mark you brainliest
This is a test!!!!!!!please help
Answer:
Angle C and Y are vertical.
hnhhhhhhhhhhhhhhhhhhh
Answer:
Step-by-step explanation:
First let's find the circle without the gray area. We would have:
[tex]\pi r^2=\pi 36^2=\pi1296[/tex]
Next let's find the area of the circle with the gray area. We would have:
[tex]\pi r^2=\pi50^2=\pi2500[/tex]
Now we subtract and get:
[tex](2500-1296)\pi=\boxed{1204\pi}[/tex]
HOPE THIS HELPS
