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
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
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
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.
What does b equal -3b-15 > -24
Step-by-step explanation:
Ans: b<3. I hope this helps.
The cost of 3 quarts of milk is $6.75. How many quarts can you buy with $20.25?
Can someone answer these for me please really need help
name the quadrilateral
Answer:
Step-by-step explanation:
Quadrilaterals
Square
Rectangle
Rhombus
Trapezoid
Parallelogram
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
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
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
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
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
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
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
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
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)
Which of the following is equivalent to
8/9
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.
wich set of numbers is areanged in decreasing order? I need help thanks
Answer:
Send a pic of the problem.
Step-by-step explanation:
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°.
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.
help with question 20 DUE IN 10 mins
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
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
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.
(
What is the measure of angle xº?
Answer:
its 30 and i think we go to the same school..
Step-by-step explanation:
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
Please help with number 1? It’s urgent!!!!
Answer:
b
Step-by-step explanation:
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