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3 years ago

How do you write a word problem using fractions with addition and subtraction

1 answer:

5 0

An example could be you ate 2/5 of a pizza and then your friend took 3 slices and ended up putting 1 slice back. How much pizza is left?

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Students surveyed boys and girls separately to determine whether they wanted outdoor

vazorg [7]

Answer:

111 girls

Step-by-step explanation:

Given

Boys: Every 17 outdoor ≈ 20 indoor

Girls: 3:2 outdoor to indoor

First, we'll determine the ratio of outdoor to indoor for boys;

Recall that;

17 choose indoor while 20 choose outdoor;

The ratio of outdoor to indoor is;

20 : 17

Convert to fraction:

$\frac{20}{17}$

Let x represent number of boys that choose indoor when 85 boys chose outdoor;

The ratio of outdoor to indoor is;

x : 85

Convert to fraction

$\frac{x}{85}$

Equate both fractions

$\frac{20}{17} = \frac{x}{85}$

Multiply both sides by 85

$85 * \frac{20}{17} = \frac{x}{85} * 85$

$85 * \frac{20}{17} = x$

$\frac{1700}{17} = x$

$100 = x$

$x = 100$

This implies that when 85 chose outdoor, 100 chose indoor for boys;

Total = 100 + 85

Total = 185 boys surveyed

<em>Recall that the question says the same number of boys and girls were surveyed</em>

This implies that

Total Girls Surveyed = 185

For the girl ratio;

Outdoor to Indoor= 3:2

Number of girls that chose outdoor is as follows;

$Outdoor = \frac{3}{3 + 2} * Total$

$Outdoor = \frac{3}{3 + 2} * 185$

$Outdoor = \frac{3}{5} * 185$

$Outdoor = \frac{555}{5}$

$Outdoor = 111$

<em>Hence, the number of girls that chose outdoor is 111</em>

4 0

3 years ago

How would I get a answer?

tresset_1 [31]

Answer:

0.07kg

Step-by-step explanation:

1kg = 1000g

so grams/1000 =kg

70/1000 = 0.07kg

3 0

3 years ago

Phoebe and Emilio are both working on a homework assignment of 36 problems. Phoebe has completed 75% of her homework problems. E

svet-max [94.6K]

Answer:

Amelia has the most homework to complete. She has 12 questions left to go. Phoebe has only 9.

Step-by-step explanation:

The easiest way to do this is to figure out the fractions represent how many questions are left.

Phoebe: 1 - 75/100 = 25/100 She has 25/100 left to go.

Emilia: 1 - 2/3 = 1/3 Emilia has 1/3 of the questions left.

Knowing that

Phoebe: 25/100 * 36 = 900/100 = 9. Phoebe has nine questions left.

Amelia: 1/3 * 36 = 12 Amilia has 12 questions left to go.

7 0

4 years ago

N/2 = 50/20 , what is N

Setler [38]

I believe this would be your answer > N = 5

5 0

4 years ago

Read 2 more answers

Find a complex number a+ ????????????????, with aand ???????? positive real numbers, such that (a+ ????????????????)3 = i.

stepan [7]

Answer:

The complex number is 0+i/3.

Step-by-step explanation:

Let the imaginary part be x.

The complex number will be a+xi

Given:

real part =a

(a+xi)*3=i...............(i)

To find:

imaginary part

Solution:

3a + 3xi=i.............(ii)

Comparing real and imaginary parts of eq(ii).

3a=0 and 3x=1

a=0

x=1/3.

6 0

3 years ago