All categories

3 years ago

A small school has 42 boys. If the ratio of boys to girls is 7 : 1, how many, students are?

2 answers:

8 0

There are a total of 48 students. Being 42 boys as mentioned earlier and 6 girls total attending too.

Please vote my answer brainliest! Thanks.

Digiron [165]3 years ago

4 0

Answer:

Step-by-step explanation:

Total ratio = 7 + 1 = 8

Let the total number of students be x

Number of boys.

7/8 × x = 42

7/8 x = 42

Multiply both sides by 8

8 × 7/8 x = 42× 8

7x = 336

Divide both sides by 7

7x / 7 = 336/7

x = 336/7 = 48

Therefore total number of students is 48

I hope this was helpful, please rate as brainliest

You might be interested in

Paco needs at least 3/8 yard of wine to build a model ship. How much wine could he buy?

AleksAgata [21]

I need more information to answer this question, so nobody can answer...

4 0

3 years ago

Jim worked 40 hours last week, plus 8 overtime hours at the time-and-a-half rate. His gross pay was $884. A. What was his hourly

marishachu [46]

Answer:

Hourly rate: $17.

Hourly overtime rate: $25.5.

Step-by-step explanation:

Let x represent Jim's hourly pay.

We have been given that Jim worked 40 hours last week. So amount paid in 40 hours would be $40x$ .

We are also told that his over time pay is time-and-a-half rate that is $1.5x$ .

The amount earned for working 8 overtime hours would be $8\cdot 1.5x=12x$ .

Since Jim's gross pay was $884, so we will equate amount earned in 40 hours and 8 hours of overtime with 884 as:

$40x+12x=884$

$52x=884$

$\frac{52x}{52}=\frac{884}{52}$

$x=17$

Therefore, Jim's hourly rate is $17.

Overtime rate would be $1.5x\Rightarrow1.5(17)=25.5$

Therefore, Jim's hourly overtime rate is $25.5.

7 0

3 years ago

Help quick! Sheet attached 30 points on offer!

ddd [48]

Answer:

Step-by-step explanation:

1/2 of 96 = 48

1/2 of 48 = 24

48 + 24 = 72

8 0

3 years ago

The mean score on a biology exam taken by all undergraduate students in a college in a particular year is 67.8 with a standard d

Ket [755]

In this question we simple wish to calculate the standard error and margin of error from the population. This can be done purely using the standard deviation and sample size.

Standard error
= std dev / (SQRT) n
= 11.5 / SQRT of 70
= 11.5 / 8.366
= 1.374

Margin of error is the standard error multiplied by a Z value that correspondence to a confidence percentage. At a 95% confidence the Z value is 1.96. Therefore
MOE = 1.96 x 1.374 = 2.69

5 0

3 years ago

Read 2 more answers

Help bro<br><br> Identify the Terms:<br> 3x + 5x + 12 – 3 + 2x

svp [43]

Answer:

dfadfadsadas

Step-by-step explanation:

5 0

3 years ago