Answer:
85, 68, 51
Step-by-step explanation:
Average: The sum of all the numbers divided by the number of numbers
If the ratio of the scores is 5 : 4 : 3, let's just set it as 5x : 4x : 3x
Then using the definition of an average, we can write this equation.
(5x + 4x + 3x) / 3 = 68
Multiply both sides by 3.
5x + 4x + 3x = 68 * 3
Simplify.
12x = 204
x = 17
Now, substitute x = 17 into the original scores (5x, 4x, and 3x)
5x = 5 * 17 = 85
4x = 4 * 17 = 68
3x = 3 * 17 = 51
Just in case, let's check this answer. Find the average of the 3 test scores.
(85 + 68 + 51) / 3 =
204 / 3 = 68
Thus, the answers are correct
Number of minutes Number of bacteria
1 1
2 4
3 9
4 16
how many bacteria will there be after 20 minutes? Explain your answer please
wich set of numbers is areanged in decreasing order? I need help thanks
Answer:
Send a pic of the problem.
Step-by-step explanation:
24, 12, 10, 15, 10, 22, 12
mean:
median:
mode:
range:
3) 14, 9, 20, 5, 17, 13
mean:
15
median:
mode:
range:
4) 21, 15, 16, 25, 13, 18
mean:
median:
mode:
range:
5) 20, 17, 10, 31, 25, 18, 12
mean:
median:
mode:
range:
Answer:
ok
Step-by-step explanation:
7mean
12median
12mode
14range
15 range
no mode
13.5median
13mean
range 12
18 mean
17 median
no mode
no mode
19 mean
18 median
21 range
Given the first term and the common ratio of a geometric
sequence find the first five terms and the explicit formula.
a1 = - 4, r = 6
Answer:
331776
Step-by-step explanation:
The formula for geometric
sequence is given below
ar^n-1
Where a= first term, r= common ratio
From the question, a1 = - 4, r = 6 , n= 5
Then if we substitute, we have
ar^n-1
5th term= ar^n-1
= (-4×6)^(5-1)
=-24 ^ 4
=331776
Hence, the first five terms is =331776
The formula is 5th term= ar^(5-1)
5. What method can be use to prove the triangles below are congruent?
(look at photo for answer options)
Answer:
Congruent by HL
Step-by-step explanation:
I know this, im doing it in integrated math
Hope this helped! Have a nice day! Plz mark as brainliest!!! :D
-XxDeathshotxX
Can someone just explain to me how to find “u” Thanks!
Answer:
u = 4 yards
Step-by-step explanation:
Step 1: Find u using sin
[tex]sin(x) = \frac{opposite}{hypotenuse}[/tex]
[tex]sin(30)=\frac{u}{8}[/tex]
[tex]8*sin(30)=u[/tex]
Step 2: Plug into a calculator
[tex]8*sin(30)=u[/tex]
[tex]8 * \frac{1}{2} = u[/tex]
[tex]4 = u[/tex]
Answer: u = 4 yards
The cost of 3 quarts of milk is $6.75. How many quarts can you buy with $20.25?
NEED HELP ASAP
The floor area of a rectangular room is represented by x2 + 3xy – 10y2. What could the length and width be?
Answer:
The length is x + 5y
The width is x - 2y
But see below.
Step-by-step explanation:
Remark
The point of this question is to factor the trinomial. It can be factored.
(x 5y)(x 2y )
has to be the beginning of the factoring process.
(x - 5y)(x + 2y) The signs are right. The factoring isn't. The middle term has to be plus.
(x + 5y)(x - 2y)
The length is x + 5y
The width is x - 2y
x must be larger than 2y, otherwise you will get a negative width. That cannot be right.
Please help with number 1? It’s urgent!!!!
Answer:
b
Step-by-step explanation:
At 7:00 am, the temperature was -4℉. At 9:00 am, it was 8° warmer. What was the temperature at 9:00 am? *
4℉.
What we know about Degrees is that there is a Positive type and a negative type.
(i.e: 30℉ is positive and -30℉ is negative.)
If the temperature was -4℉ at 7AM, then it is negative. If it goes up by an amount that is more than 4 then that negative will go up to a positive temperature. In this case: At 9AM it was 8° warmer.
Warmer is a keyword. If it is warmer by an amount, Negative temperatures will go up to a positive and positive temperature will just go up. If it gets cooler, negative temperatures will go down further and positive temperatures will go down to a negative.
So lets work out this problem with our newfound knowledge.
-4° F at 7AM
8° warmer at 9AM
-4 + 8 = 4.
The temperature was 4° at 9AM.
-Snooky
Please help Divide: 0.52/4.42
this is karma for spamming random stuff on peoples questions if you want people to help you dont go trying to get free points by commenting jr3nfrhgvberhvrucv
Simplify the following expression: 6c - 9c - 8
pls show work so i can write down
Answer:
[tex] - 3c - 8[/tex]
Step-by-step explanation:
1) Collect like terms.
[tex](6c - 9c) - 8[/tex]
2) Simplify.
[tex] - 3c - 8[/tex]
Therefor, the answer is -3c - 8.
name the quadrilateral
Answer:
Step-by-step explanation:
Quadrilaterals
Square
Rectangle
Rhombus
Trapezoid
Parallelogram
A local bakery sells cupcakes for $3.50 each. The fixed monthly cost totals $275 which includes rent, utilities, and wages. Each cupcake costs the bakery 0.90 to make.
Answer: 110 cupcakes
Step-by-step explanation:
Assuming this question is asking for the breakeven point, you can find that by using the formula:
= Fixed cost / Contribution margin
Contribution margin = Sales price - variable cost (amount to make one cupcake)
= 3.50 - 0.90
= $2.60
Breakeven point = 275 / 2.60
= 109.77
= 110 cupcakes
help with question 20 DUE IN 10 mins
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What is the measure of angle xº?
Answer:
its 30 and i think we go to the same school..
Step-by-step explanation:
What is the measure of angle b in degrees?
Answer:
119
Step by Step:
180-112=68, 68+51=119, 180-119=61, 180-61=119
write some thing good in answer.
Fro. there I will choose one and I will mark one person as a Brilliant.
So write fast it is valid till 15 days.
Answer:
You’re awesome.
Answer:
some thing good in answer.
Tyler's family has 4 children. How many ways can they line up to get their flu shot at the doctor?
Answer:
16 if im correct
Step-by-step explanation:
4x4=16.
aaaaaa im sorry i did not know that I did not know this :C ill try
A triangle has two sides that are 4 in. And 10 in. What could be the length of the third side of the triangle? Select all that apply.
Answer:
see explanation
Step-by-step explanation:
Given 2 sides of a triangle then the range of the third side x is
difference of 2 sides < x < sun of 2 sides , that is
10 - 4 < x < 10 + 4
6 < x < 14
Thus the third side can be 7, 8, 9, 10, 11, 12, 13
What does b equal -3b-15 > -24
Step-by-step explanation:
Ans: b<3. I hope this helps.
What does the remainder tell you about the
relationship between the dividend and the divisor when dividing polynomials?
Answer:
The remainder is the number left when you completely divide out your number to its max (Dividend = Divisor × Quotient + Remainder)
Step-by-step explanation:
I hope this helped
find the measure of angle 6
Answer:
∠6 = 125°
Step-by-step explanation:
__________________________________________________________
FACTS TO KNOW :-
When any 2 lines intersect each other at any point , the vertical angles are always equal to each other .
__________________________________________________________
According to the figure ,
∠6 is present vertically opposite to the angle whose measure is 125°.
∴ Hence ∠6 = 125°.
Can someone answer these for me please really need help
Which of the following is equivalent to
8/9
7x -2(x-11)=-103
what is x
Answer:
the answer is x=−25
Step-by-step explanation:
hoped I helped:)
Answer:
7x-2x+22=-103
5x. =-103-22
5x =-125
X.=-25
The volume of the rectangular prism is 295.68 in. What is its width?
6.4 in.
11 in.
Answer: 4.2 in³
Step-by-step explanation: We already know the Height, Length, and he volume, but we don't know the width. To find the width:
1. Find the values. 295.68, 6.4, and 11 are all the values.
2. Multiply the Length and Height.
6.4 × 11 = 70.4
3. Calculate the Width by dividing the volume by the product of the length and height
295.68 ÷ 70.4 = 4.2
Hence, 4.2in³ is the missing width.
Let me know if you have any questions.
~ Lily, from Brainly.
John's rate of pay is £12.60 per hour. One day he gets payed £119.70 John works 9 hours 50 mins that day
Answer:
Proof of conceptual & numerical relationship between Total Pay, Pay rate per hr, No of hrs
Step-by-step explanation:
Total Pay = Pay rate per hr x No of hrs
No of hrs = Total Pay / Pay rate per hr
No of hrs = 119.70 / 12.6
No of hrs = 9.5
Hence Proved
Tina's college tuition is $7,500. She pays 25% down and takes out a
loan for the balance. How much of a loan does Tina take out?
Answer:
9,375
Step-by-step explanation:
7,500*.25= 1,875
7,500+1,875=9,375
In Triangle PQR, p = 36 cm, q = 21 cm and r=17 cm. Find the measure of ZQ to the
nearest 10th of a degree.
Answer:
20.8
Step-by-step explanation:
If your using delta math ..
Answer:
20.8
Step-by-step explanation:
delta