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Gre4nikov [31]
2 years ago
14

the number of boys and girls in a school are 480 and 576 respectively. express the ratio of the number of boys to that of girls​

Mathematics
2 answers:
Arada [10]2 years ago
5 0

Answer:

boys : girl

5 : 6

Step-by-step explanation:

boys : girl

480: 576

Divide each side by 96

480/96 : 576/96

5 : 6

svet-max [94.6K]2 years ago
3 0

Boys = 576

Girl = 480

  • GCF of 576 and 480 is 96.

Now , dividing both numbers by GCF.

\large\bf{\red{  \longrightarrow}} \tt \:   \frac{ \cancel{480}  \: ^{5} }{ \cancel{576} \:  ^{6} }  \\

\large\bf{\red{  \longrightarrow}} \tt \:    \frac{5}{6}  \\

<h3>⇛Hence , the ratio will be 5 : 6</h3>
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Find the value of x such that the area of a triangle whose vertices have coordinates (6, 5), (8, 2) and (x, 11) is 15 square uni
Serjik [45]

Answer:

x =12\ or\ -8

Step-by-step explanation:

Given

(x_1,y_1) = (6,5)

(x_2,y_2) = (8,2)

(x_3,y_3) = (x,11)

Area = 15

Required

Find x

The area is calculated as thus:

Area = \frac{1}{2}|x_1(y_2 - y_3) + x_2(y_3 - y_1) + x_3(y_1 - y_2)|

Substitute values

15 = \frac{1}{2}|6*(2 - 11) + 8*(11 - 5) + x(5 - 2)|

15 = \frac{1}{2}|6*(-9) + 8*(6) + x(3)|

15 = \frac{1}{2}|-54 + 48 + 3x|

15 = \frac{1}{2}|-6 + 3x|

Multiply through by 2

2 * 15 = \frac{1}{2}|-6 + 3x| * 2

30 = |-6 + 3x|

Remove absolute sign

30 = -6 + 3x\ or\ -30 = -6 + 3x

Add 6 to both sides

36 = 3x\ or\ -24 =  3x

Divide by 3

12 = x\ or\ -8 = x

x =12\ or\ -8

<em>So, the coordinates are (-8, 11) or (12,11)</em>

3 0
2 years ago
What metric measurement is the best estimate for measuring a car.
Dovator [93]
The best measurement to find the mass of a car is kilograms. The best measurement to find the length is Meters.
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3 years ago
Andrew and Kate have $30 to spend on dinner, tax, and gratuity at Mo’s Restaurant. Tax is 6%, and they will give a 15% tip on th
Anton [14]

Answer:

yes, the meal costs 25.60

Step-by-step explanation:

I used a slightly different method but B (Yes. They have enough to pay their bill: 21 dollars times 1.06 = 22 dollars and 26 cents and 22 dollars and 26 cents times 1.15 = 25 dollars and 60 cents.) is correct.

21*0.06=1.26

1.26+21=22.26

22.26*0.15=3.34

22.26+3.34=25.60

4 0
2 years ago
Read 2 more answers
Pls help no links pls
nikdorinn [45]
Hope this kind of puts you in the right direction

4 0
2 years ago
Help! I need help with this math problem
stiks02 [169]

Answer:

h(-1) is -1, h(-0.5) is 0 and h(1) is 1.

Step-by-step explanation:

functions :- an expression, rule or law that defines relationship between one variable and another variable. When a certain condition is fulfilled, then the result is corresponding to that condition.

  • h(-1)

In the function it is given that when x∈(-2,-1] then we get -1. Now here x=-1 satisfies the given condition. So, the answer will be -1.

  • h(-0.5)

In the function it is given that when x∈(-1,0] then we get 0. Now here x=-0.5 lies in the range (-1,0]. So, the answer is 0.

  • h(1)

In the function it is given that when x∈(0,1] then we get 1. Clearly, x=1 satisfies this range of values. So, we get 1.

Hence, the Answer is h(-1) = -1, h(-0.5) = 0 and h(1) = 1.

know more about functions at brainly.com/question/15912209

#SPJ10

4 0
2 years ago
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