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Leona [35]
2 years ago
5

Mr and mrs Jackson have 14 grandchildren. Find the ratio of girls to boys if there are four more girls than boys

Mathematics
2 answers:
MrRa [10]2 years ago
8 0

Answer:

5:9

Step-by-step explanation:

One Simple Method:

We can plug in values that are reasonable, such as 5 and 9. 5 represents the amount of boys and 9 represents the amount of girls. There's four more girls than boys, adding up both terms there's a sum of 14 grandchildren.

Another Method:

using and creating an equation.

x represents boys

y represents girls

<u>Our equation for boys:</u>

x(x+4)=14

2x+4=14

<u>Subtract 4 from both sides</u>

2x=10

x=5

x=5 represents 5 boys.

Use x=5 in our equation for girls.

5+y=14

<u>Subtract 5 from both sides</u>

y=9

y=9 represents 9 girls.

natulia [17]2 years ago
6 0

Answer:

5 boys to 9 girls

Step-by-step explanation:

Let x = the number of boys

Boys = x

Girls = x + 4

x + (x + 4) = 14

2x + 4 = 14

2x = 10

x = 5

This means that there are 5 boys. Since girls = x + 4, 5 + 4 = 9. There are 5 boys and 9 girls.

I hope this helped and please mark me as brainliest!

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fgiga [73]
1.0g/cm3 means that the mass of one cm3 is 1.0g
The easiest method to use is the rule of three, and let x be the mass of 10.0 cm3 of water
1g -- > 1.0 cm3
x --> 10.0 cm3

x= (10*1)/1
x=10.0 g

So the mass of 10.0 cm3 of water is 10.0g

Hope this Helps! :)
8 0
3 years ago
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(23+?) +19=23+(?+19 can any number complete the number sentence?
7nadin3 [17]
Yes, since the other two numbers on each side are the same, any number can fit well in this equation.
4 0
3 years ago
How do you make a mix number out of 81 divided by 10?
MakcuM [25]
81÷10
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8 0
2 years ago
A.The observation deck of tall skyscraper 370 m above the street. Determine the time required for a penny to free fall from the
Ainat [17]

Answer:

8.68 seconds

Step-by-step explanation:

Given:

Height of the deck above the street, s = 370 m

Since the condition is of free falling

thus,

initial speed, u = 0

Acceleration of the penny = acceleration due to gravity, g = 9.81 m/s²

Now,

from Newton's equation of motion, we have

s=ut+\frac{1}{2}at^2

here,

s is the distance

a is the acceleration

t is the time

on substituting the values, we get

370=0\times t+\frac{1}{2}\times9.81\times t^2

or

t² = 75.433

or

t = 8.68 seconds

8 0
3 years ago
When 6 times a number is increased by 11 the result is 16 less than 9 times the number. Find the number.
scZoUnD [109]

Answer:

Brainly.in

Question

When <u>6</u><u> </u><u>times</u><u> </u><u>a</u><u> </u><u>number</u><u> </u> is increased by 11 the result is 16 less than 9 times the number. Find the number.

Answer · 7 votes

Answer:6x+11=9x-163x=27X=9 Please mark it brainliest

Step-by-step explanation:

Please mark it brainliest

5 0
2 years ago
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