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4 years ago

There are 15 students on a yearbook committee. 40% of the students are females. How many students on the committee are males?

Mathematics

2 answers:

Andrei [34K]4 years ago

8 0

Answer:

9 students on the committee are males

Step-by-step explanation:

As per the statement:

There are 15 students on a yearbook committee.

⇒Total students on a yearbook committee = 15

⇒ $\text{Male students} +\text{Female students} = 15$ ....[1]

It is given that:

40% of the students are females

⇒ $\text{Female students} = \frac{40}{100} \cdot 15 = 6$

Substitute in [1] we have;

$\text{Male students} + 6 = 15$

Subtract 6 from both sides we have;

$\text{Male students}= 9$

Therefore, 9 students on the committee are males

uranmaximum [27]4 years ago

3 0

Answer:

its 9

Step-by-step explanation:

100-40=60

60% of 15 is 9

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The average grain of salt is 0.0003 meters wide. Rhinovirus, which causes the common cold, is 0.00000003 meters wide. How many t

algol [13]

Answer:

$1\times 10^4\ times$

Step-by-step explanation:

Given:

Width of average grain of salt is, $w=0.0003\ m$

Width of Rhinovirus is, $W=0.00000003\ m$

Now, expressing each width in scientific notation form, we get:

$w=0.0003\ m = 3\times 10^{-4}\ m\\\\W=0.00000003\ m = 3\times 10^{-8}\ m$

Now, in order to get how many times 'W' is wider than 'w', we divide the two widths. This gives,

$\frac{W}{w}=\frac{3\times 10^{-4}\ m}{3\times 10^{-8}\ m}\\\\\frac{W}{w}=1\times 10^{-4-(-8)}=1\times 10^{-4+8}=1\times 10^4\\\\\therefore W=1\times 10^4\times w$

Therefore, the grain of salt is $1\times 10^4\ times$ wider than Rhinovirus.

5 0

3 years ago

Fill in the blanks to solve 48 x 8.<br> 48 x 8<br> = 40 eights + 8<br> eights

kozerog [31]

Question is:

Fill in the blanks to solve $\frac{48}{x} =8$ .

Answer:

$x = 6$

Step-by-step explanation:

Given

$\frac{48}{x} =8$

Required

Solve

Multiply both sides by x

$x * \frac{48}{x} =8*x$

$48 =8*x$

Make x the subject

$x = \frac{48}{8}$

$x = 6$

4 0

3 years ago

The garden has 20 rows of crops and one half of the rows are planted with corn. How many rows are planted with corn?

max2010maxim [7]

20 x 1/2 = 10

There are 10 rows that are planted with corn.

3 0

3 years ago

Read 2 more answers

Can anyone help me? My teacher just recently taught me this today, be he never explained much. The question is in the photo

IceJOKER [234]

You've got five different problems in this photo ... four on top and the word problem on the bottom ... and they're all exactly the same thing: Taking two points and finding the slope of the line that goes through them.

In every case, the procedure is the same.
If the two points are (x₁ , y₁) and (x₂ , y₂) , then
the slope of the line that goes through them is

      Slope = (y₂ - y₁) / (x₂ - x₁) .

This is important, and you should memorize it.

#1). (8, 10) and (-7, 14)

   Slope = (14 - 10) / (-7 - 8) = 4 / -15

#2). (-3, 1) and (-17, 2)

   Slope = (2 - 1) / (-17 - -3) = (2 - 1) / (-17 + 3) = 1 / -14

#3). (-20, -4) and (-12, -10)

   Slope = [ -10 - (-4) ] / [ -12 - (-20) ]

=========================================

The word problem:

This question only gives you one point on the graph,
and then it wants to know what's the slope ?
What are you going to do for another point ?

A "proportional relationship" always passes through the origin,
so another point on the line is (0, 0) .

Now you have two points on THAT line too, and you can easily
find its slope.

4 0

3 years ago

Yasmine has 4 containers of 4 different colors of flowers to plant. She had 1/3 of each color left over when she was done planti

olga2289 [7]

Answer:

$2\frac{2}{3}$

Step-by-step explanation:

Given the information

4 containers of 4 different colors
1/3 of each color left over
She had planted more than 2 1/2 of the original 4 containers

=> Total color were left = 1/3 x 4 = 4/3 of the original containers

=> Total color were planted = (1 - 1/3) x 4 = 2/3 x 4 = 8/3 of the original containers

However, 8/3 = $2\frac{2}{3}$ > 2 $\frac{1}{2}$

So she is true, hence, the fractions to determine the total amount of containers of flowers she planted is: $2\frac{2}{3}$

Hope it will find you well

7 0

3 years ago