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nadya68 [22]
3 years ago
10

Very easy!! help!! urgent!! its on ratio

Mathematics
1 answer:
masha68 [24]3 years ago
5 0

Answer:

A and B are correct

Step-by-step explanation:

if x:y is 1:3 then x is 1 and y is 3

1/3 of 3 is 1 so A is correct

3/4(1+3) is 3 so B is correct

But

1/4 × 3 is not 1 so C is not correct

3/4 ×1 is not 3 so D isn't correct

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A farmer claims that the average mass of an apple grown in his orchard is 100g. To test this claim, he measures the mass of 150
Blizzard [7]

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C. At the 0.01 level of significance, the mean mass of the apples grown in the farmer's orchard is different from 100g.

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3 years ago
Draw the translated image of ABCDE so that vertex C moves to C’.
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5 0
3 years ago
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La suma de dos números es igual a 10 y la suma de sus cuadrados es 58 halla dichos números
Nadya [2.5K]
X=numero 1 
<span>10-x= numero 2 </span>


<span>x^2 + (10-x)^2 = 58 </span>
<span>x^2 + 100 -20X + x^2 = 58 </span>
<span>2x^2 - 20X + 42 = 0 ....simplificando </span>
<span>x^2 - 10X + 21 = 0...factorizamos </span>

<span>(x-3)(x-7)=0 ...resolvemos las dos partes </span>
<span>x-3=0 -----> x=3 </span>
<span>x-7=0------>x=7 </span>

<span>los dos numeros son 3 y 7 </span>

<span>3^2 + 7^2 = 9+49= 58....Espero te sirva </span>



<span>para el comentario de arriba 36 + 16=52..</span>
6 0
4 years ago
Read 2 more answers
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