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3 years ago

Help me and I’ll give you brainliest

Mathematics

1 answer:

mash [69]3 years ago

5 0

Answer:

124

Step-by-step explanation:

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For the choir concert, the choir director has asked that everyone wear either black pants or blue jeans. Three times as many stu

Katyanochek1 [597]

Answer: 33 students wore blue jeans .

Step-by-step explanation:

Let x be the number of black pants.

Given : For the choir concert, the choir director has asked that everyone wear either black pants or blue jeans.

Three times as many students wore black pants as blue jeans.

i.e. Number of blue pants = 4x

If there are forty-four students in the choir, then we have

$x+3x=44\\\\\Rightarrow\ 4x=44$

Divide both sides by 4 , we get

$x=11$

Thus , the number of black pants = 11

Then , the number of blue pants = $3\times11=33$

Therefore, 33 students wore blue jeans .

6 0

4 years ago

Calculate the length b to two decimal places.

Andrej [43]

Answer:

B. 21.64

Step-by-step explanation:

We have been given a triangle and we are asked to find the length of AC (b).

We will use law of cosines to find the length of side AC.

$c^{2}=a^{2}+b^{2}-2ab \text{ cos }\theta$

Upon substituting our given values in the formula we will get,

$(AC)^{2}=15^{2}+12^{2}-2\times 15\times 12 \text{ cos}(106)$

$(AC)^{2}=225+144-360\text{ cos}(106)$

$(AC)^{2}=369-360(-0.275637355817)$

$(AC)^{2}=369+99.22944809412$

$(AC)^{2}=468.22944809412$

Upon taking square root of both sides of our equation we will be get,

$AC=\sqrt{468.22944809412}$

$AC=21.6386101238993629\approx 21.64$

Therefore, the length of b is 21.64 and option B is the correct choice.

6 0

3 years ago

A store is having a 20% off sale. You purchase a pair of bluetooth

Rufina [12.5K]

Answer:

60 dollars

Step-by-step explanation:

well it's simple

6 0

3 years ago

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Find the factors of each number in classify each number as a prime or composite<br> 18,37,48

zepelin [54]

18=1,2,3,9,18

37=1,37

48=1,2,3,16,24,12,4,6,8,48

Prime no. is a number that is divisible only by itself and 1

So, here 37 is a prime no.

18 and 48 are composite no.s

7 0

3 years ago

A deposit of $10,000 is made in an account that receives 10% interest, compounded monthly. How much money will the account conta

Pavel [41]

Answer:

45,000

Step-by-step explanation:

8 0

3 years ago

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