Answer:
84
Step-by-step explanation:
7/10 of them likes math and there are 240 student in total
240 / 10 = 24 and 24*7 = 168 student likes math if half of them are girls
then there are 84 girls that likes math.
A recipe for 10 bran muffins calls for 1 cup of flour. The number of muffins that can be made varies directly with the amount of flour used. There are 3 1/2 cups of flour available. How many muffins can be made?
Answer:
35
Step-by-step explanation:
3 1/2 x 10 =35
make 3 1/2 into an improper fraction: 3 x 2 + 1 = 7/2
make 10 into a fraction: 10/1
find the LCD (least common denominator) for each number:
10/1 = 20/2
7/2 = 7/2
20/2 x 7/2 = 70/2 = 35
:)
Answer:
35
Step-by-step explanation:
For 1 cup of flour, you make 10 muffins. Just by reading the problem, you see that the number of muffins, 10, is 10 times the number of cups of flour, 1.
For 3 1/2 cups of flour, you make 10 times that number muffins.
3 1/2 × 10 = 3.5 × 10 = 35
Answer: 35 muffins
You can also use a proportion.
1 cup flour is to 10 muffins as 3.5 cups flour is to x muffins.
1/10 = 3.5/x
Cross multiply:
1 × x = 10 × 3.5
x = 35
Answer: 35 muffins
The number T of teams that have participated in a robot-building competition for high-school students over a recent period of time x(in years) can be modeled by T(x) = 17.155x^2 + 193.68x + 235.81, 0 ≤ x ≤ 6.
After how many years is the number of teams greater than 1000? Justify your answer.
Solving the quadratic equation, it is found that the number of teams is greater than 1000 after 3.1 years.
The number of teams after x years is given by:
[tex]T(x) = 17.155x^2 + 193.68x + 235.81[/tex]
Initially, there are T(0) = 236 teams. If will 1000 be when T(x) = 1000, thus:
[tex]17.155x^2 + 193.68x + 235.81 = 1000[/tex]
[tex]17.155x^2 + 193.68x - 764.19 = 0[/tex]
Which has coefficients [tex]a = 17.155, b = 193.68, c = -764.19[/tex], then:
[tex]\Delta = (193.68)^2 - 4(17.155)(-764.19) = 89950.66[/tex]
[tex]x_{1} = \frac{-193.68 + \sqrt{89950.66}}{2(17.155)} = 3.1[/tex]
[tex]x_{2} = \frac{-193.68 - \sqrt{89950.66}}{2(17.155)} = -14.3[/tex]
We want the positive root, so the number of teams is greater than 1000 after 3.1 years.
A similar problem is given at https://brainly.com/question/10489198
what is the scale factor from triangle abc to triangle A' B' C' ? Also explain how.
What is the mean of
8,4,5,4,9,0
Answer:
5
Step-by-step explanation:
(8+4+5+4+9+0) /6 = 5
The ratio of girls to boys in a swimming club was 1:4. There were 10 girls. How many
boys were there in the club?
Answer:
40 boys
Step-by-step explanation:
The 1 part of the ratio refers to 10 girls and represents 1 part , then
4 parts = 4 × 10 = 40
There are 40 boys in the club
please help this is an 8 grade question
Find the value of x.
Answer:
-5
Step-by-step explanation:
hope it works out for you
On a given day, the exchange rate from US dollars to Australian dollars was 1 US dollar = 1.31 Australian dollar. About how much could you get in Australian dollars if you exchanged $560 US dollars on that day?
Answer:
733.6
Step-by-step explanation:
I did it
Given m||n, find the value of x.
(7x+6)° (9x-24)°
Answer:
X=15
I hope this helps also I would appricate brainliest if possible :)
Please help me with this math problem! :) I will give brainliest!
AC=5cm
AB=6cm
BC=6cm
A=AC
Find the length of the missing leg of a right triangle whose hypotenuse measures 15 cm and whose other leg measures 13 cm. geometry
Answer:
you can always use sin or cos or tan in these situations
please help me solve this problem please
Answer:
I think that the bottom is multiplying by 4 to get the rest for the bottom
What is the answer to 6.7 x 10^5=
Answer:
670000
Step-by-step explanation:
6.7X10000
[tex]QUESTION:[/tex]
What is 6.7 x 10^5?
[tex]ANSWER:[/tex]
670,000
[tex]COMMENT /VERIFICATION:[/tex]
This is proper scientific notation because the coefficient is between 1 and 10.
Hope this helps! :)
[tex]ANSWERED:\\GraceRosalia[/tex]
What is the equation for the line parallel to y=2x+13y=2x+13 that contains (8,-4)(8,−4)?
I will assume you meant y = 2x + 13
Answer: y = 2x - 20
please answer this question correctly
Answer:
6. (IV) Square pyramid
(b). (iii) 90°
(c). (iii) 7 students
(d). (ii) 25
Step-by-step explanation:
I can't see the others anymore i'ts okay i hope this will help you thanks brainless please I just needed thanks again.
the three inside angles are(A,B and C) of a right-angled triangle are the ratio 7:18:11. The smallest abbé is 35 degrees. Work out angle A,B and C
Answer:
a
Step-by-step explanation:
Answer:
it is b i believe this this this this this thsidjcbd dbchf f f f f f f. f f r r f f f f f
Step-by-step explanation:
Find the value of x.
Answer:
Step-by-step explanation:
bring the varible to the left side and bring all of the remaining values to the right
Answer:
x=2.5
Step-by-step explanation:
because 4x-2=2x+3
4x-2x=3+2
2x=5 divide both by 2 it gives 2.5
give me brainlist please
Which of the following is true?
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The Correct statement is :
RT is an altitude of Triangle QRSWhich are the solutions of x2 = 5x + 8?
2 = 5 + 8
hopes this helps
3x + 7 = x -5Group of answer choices x = -6 x = -7 x = 12 x = 6
Which picture shows a proper
reflection across the red dashed line?
A
B
Which statement is correct
Answer:
statement B is correct.........
how would this: 6.673 + 8.29 equal this: 14.963 ?!?!?!?!?
Answer:
You have to add -its easier to add up and down so you can see it more visibly-
Step-by-step explanation:
1
8.290
+6.673
14.963
Hope this helps! Have a great day!!
I NEED HELP ASAP PLEASE NO LINKS!!!
when i solved, i got 16? im not entirely sure though.
Answer:
16
Step-by-step explanation:
16
help asap please!! :(( I need help
Answer:
m1= 43
m2=17
m3=120
m4=m5=m6=60
m7=17
m8=120
m9=43
Step-by-step explanation:
"Given ABC is an isosceles triangle and DBE is an equilateral triangle. we have to find each missing measure.
In triangle ABC,
∠1=∠9 (∵isosceles triangle)
⇒ 4x+3=9x-47
⇒ 9x-4x=3+47 ⇒ 5x=50 ⇒ x=10
Hence, ∠9=∠1=(4x+3)°=4(10)+3=43°
Also, given ΔBDE is an equilateral triangle, and all angle of equilateral triangle are equal.
∴ ∠4+∠5+∠6=180°
⇒ ∠4+∠4+∠4=180° ⇒ 3∠4 = 180° ⇒ ∠4 = 60°
∴ ∠4=∠5=∠6=60°
By exterior angle property, ∠3=∠5+∠6=60°+60°=120°
∠8=∠5+∠4=60°+60°=120°
In ΔABD, ∠1+∠2+∠3=180°
⇒ 43°+120°+∠2=180°⇒ ∠2 = 17°
In ΔABD, ∠9+∠8+∠7=180°
⇒ 43°+120°+∠7=180°⇒ ∠7= 17°"
by SerenaBochenek
Help me please I really need it!
The rate of change is 3/4.
The rise is 3 and the run is 4.
Slope, or rate of change, is rise/run.
So, you get 3/4.
Answer: The answer would be 3/4!
Step-by-step explanation:
Please help me answer this
Answer:
→ 9x^2 - 4x - 3 = [41].
Step-by-step explanation:
Simplify:
9x^2 - 4x -3
=> 9(-2)^2 - 4(-2) - 3 [∵ x = 1 (Given)]
=> 9(4) - 4(-2) - 3
=> 36 + 8 - 3
=> 44 - 3
=> 41 Ans.
Donald bought 3 shirts for $45. How many shirts can Donald buy if he has $30? Show your work using mathematics.
Answer:
donald can buy 2
Step-by-step explanation:
price of a shirt = $45÷3
=15
=30÷2=15
Answer:2 shirts
Step-by-step explanation: if you divide 45$ by three you find out each shirt cost 15$ if you add fifteen twice you get 30$ theirfor you used all your money and can not buy another shirt.
What is the meaning of the point with an x-coordinate of 2?
Answer:
In 2 seconds, the space station travels 10 miles.
Step-by-step explanation:
Well, if the x axis represents time in seconds and the y axis represents distance in miles, then when your x value is 2, your y value is 10.
Does anyone know where this worksheet is at on online with the answers ?
Answer:
I do not know if there is this worksheet online which comes with answers, but you can post questions here on brainly, and I can help you clarify them!!
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