👤
Domingoloida9go
Answered

1. you can buy 3 pencils for ₱45. write proportion that gives the cost of buying 7 pencils.___:___:=___:___.

2. two camping tents can accommodate 8 boy scouts. write the proportion to find the number of tents needed by 12 boy scouts___:___:=___:___

3. four curtains are needed to cover 3 window panes . there are 16 curtains. write the proportion that will the number of the window panes___:___=___:___​

Sagot :

Kimj95677go

Answer:

Proportion

1.) 3 : 945 = 7: n

=

3n = 6615

=

n = 2205

Thus, 3 : 945 = 7: 2205

(The cost of buying 7 pencils is 2205)

2.) 2: 8 = n: 12

=

24 = 8n

=

3 = n

Thus, 2: 8 = 3: 12

(They need 3 tents to accommodate 12 boy scouts)

3.) 4 : 3 = 16: n

=

4n = 48

=

n = 11

Thus, 4 : 3 = 16: 11

(There are 11 window panes that will be covered by 16 curtains)

Step-by-step explanation:

A proportion is an equality of two ratios or fractions. We write proportions to help us express equivalent ratios and solve for unknown quantities.

To solve the missing number in proportion, we follow the steps below:

1. Express the two ratios in fraction form.

2. Cross multiply by multiplying the numerator of the first fraction by the denominator of the second fraction. And, multiply the denominator of the first fraction by the numerator of the second fraction. (Don't forget to put the equal sign between the two products to show equality)

3. Solve for the unknown by dividing both sides of the equation by the number next to the variable.

#BRAINLYFAST

Go Training: Other Questions