Question

1. 1)-9.3×6.2 2)7 1/3:(-9/44) 3) (-35.63):(-0.7) 4)64.16:(-8) 2. 1) -2.6×(-4у) 2)16х-10х-7у+у 3)х+(х-2)-(х+19) 3)-6(х-2)+4(х+3) 3. (-6.25-(-7.75)):(-0.7)+0.9×(-6) 5. 0.6(4у-18)-0.4 (5-7у)= Если у= 2 4/15 Ребят ставлю максимальное количество баллов! Нужно прямо сейчас !!!! Пожааааалуйстааа!!! Нужно с полным решением, а не сразу ответы.

Answer 1

Ответ:1)-9,3×6,2=-57,66   2) 71/3÷(-9/44)=27×(-44/9)=-132

3)(-35,63)÷(-0,7)=50,9      4)   64,16÷(-8)=-8,02

№2    1)-2,6×(-4y)=5,2y      2) 16x-10x-7y+y=6x-6y=6(x-y)

3)-6(x-2)+4(x+3)=-6x+12+4x+12=10x+24

Пошаговое объяснение:

Answer 2

1. -9.3 × 6.2 = -57.66

2. 7 1/3 : (-9/44) To divide fractions, we invert the divisor and multiply: = 22/3 × (-44/9) Now, multiply the fractions: = -22 × 44 / 3 × 9 = -968 / 27

3. (-35.63) : (-0.7) = 35.63 / 0.7 = 50.9

4. 64.16 : (-8) = -64.16 / 8 = -8.02

1. -2.6 × (-4у) When multiplying a negative number by a negative number, the result is positive. = 2.6 × 4у = 10.4у

2. 16х - 10х - 7у + у Combine like terms: = (16х - 10х) + (-7у + у) = 6х - 6у

3. х + (х - 2) - (х + 19) Remove parentheses: = х + х - 2 - х - 19 Combine like terms: = х - 21

-6(х - 2) + 4(х + 3) Distribute the multiplication: = -6х + 12 + 4х + 12 Combine like terms: = -2х + 24

(-6.25 - (-7.75)) : (-0.7) + 0.9 × (-6) = (-6.25 + 7.75) / (-0.7) + 0.9 × (-6) = 1.5 / (-0.7) - 5.4 Now, divide 1.5 by -0.7: = -2.14285714 - 5.4 = -7.54285714

0.6(4у - 18) - 0.4(5 - 7у) Now, substitute у = 2 4/15 into the expression: 0.6(4(2 4/15) - 18) - 0.4(5 - 7(2 4/15))

First, solve the expression inside the parentheses: 4(2 4/15) = 4(34/15) = 136/15

Now, continue with the calculations: 0.6(136/15 - 18) - 0.4(5 - 7(2 4/15)) = 0.6(136/15 - 270/15) - 0.4(5 - 14/15) = 0.6(-134/15) - 0.4(75/15 - 14/15) = -804/75 - 0.4(61/15) = -804/75 - 24.4/75

Now, find a common denominator (which is 75): = (-804 - 24.4) / 75 = -828.4 / 75

So, the final answer when у = 2 4/15 is: -828.4 / 75