4 years ago

Which is the following is the correct 5×(4+9)-2=27. (5×4)+9-2=27. 5×4+9-2-27

2 answers:

7 0

Second answer is correct. you multiple 5x4 and whatever answer you get you add that with 9 and whatever answer you get from that you subtract from 2

jekas [21]4 years ago

3 0

The second one is correct

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franklin school has 3 boys for every 4 girls in the fifth grade. there are 140 students in the 5th grade. How many boys are ther

marin [14]

Answer:

There are 60 boys and 80 girls in Franklin School.

Step-by-step explanation:

"franklin school has 3 boys for every 4 girls in the fifth grade." means that the ratio of boys to girls is: 3:4

It can also be written as 3/4

Also given

Total number of students: 140

We will use ratios to find the number of boys and girls in shool.

First of all, we have to calculate the sum of ratio which is: 3+4 = 7

Let b be the number of boys and g be the number of girls

Then

$b = \frac{Ratio\ of\ boys}{Sum\ of\ ratio} * Total\ students\\= \frac{3}{7} * 140\\= 3*20\\=60\\g = \frac{Ratio\ of\ girls}{Sum\ of\ ratio} * Total\ students\\g = \frac{4}{7}*140\\= 4*20\\=80$

Hence,

There are 60 boys and 80 girls in Franklin School.

3 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B1-%28-5%29%7D%7B7-2%7D" id="TexFormula1" title="\frac{1-(-5)}{7-2}" alt="\frac{1-(-5

Eduardwww [97]

Answer:

Step-by-step explanation:

3 0

3 years ago

If one root is the square root of the other in the equation 8 + mx + 27x^2 = 0, find the value of m

ICE Princess25 [194]

Answer:

Step-by-step explanation:

6 0

3 years ago

What number should be added to both sides of the equation to complete the square? x^2 – 6x = 5

NeTakaya

You will add $( \frac{-6}{2} )^{2}$
$(-3)^{2}$
9

5 0

3 years ago

Answer 1,2 and 3 and challenge thank you

Nadusha1986 [10]

NUMBER 2 is 240 because 6 times 4 times 10 is equal to 240. I am still working on the others

7 0

3 years ago