Помогите пожалуйста номера 5,6.1-3

Question 1

Question 2

5) y + (-3.4) =
y = -1.85
- 1.85 - 3.4 = - 5.25
y = $-22 \frac{1}{2}$ = -22.5
- 22.5 - 3.4 = - 25.9
y = $-5 \frac{8}{25}$ = -5.32
-5.32 - 3.4 = - 8.72

6) $a-(-2 \frac{3}{4}) = -2 \frac{5}{6}$
$a+2 \frac{3}{4} = -2 \frac{5}{6}$
$a = -2 \frac{5}{6}-2 \frac{3}{4}$
$a = -2 \frac{10}{12}-2 \frac{9}{12}$
$a = -5 \frac{7}{12}$

$x-4 \frac{1}{8} =-2 \frac{11}{12}$
$x=4 \frac{1}{8} -2 \frac{11}{12}$
$x=4 \frac{3}{24} -2 \frac{22}{24}$
$x=1 \frac{5}{24}$

1) a) 15 - 17 = -2
б) 15 - (-17) = 15 +17 = 32
в) -15 - 17 = -32
г) -15 - (-17) = -15 +17 = 2
д) -13,2 - ( $-13 \frac{1}{5}$ ) = -13,2 + 13,2 = 0
е) 0 - 6,3 = -6,3
ж) 0 - (-8,48) = 8,48
з) $-2 \frac{1}{2}$ - 0,5 = -2,5 -0,5 = -3
и) $\frac{5}{14} - (- \frac{2}{7} ) = \frac{5}{14} + \frac{4}{14}= \frac{9}{14}$
к) $1 \frac{3}{22} - 4 \frac{5}{33} = 1 \frac{9}{66} - 4 \frac{10}{66} =-3 \frac{1}{66}$

2) а) Разность чисел a и b положительна, если a > b (2)
б) $-1,5-(-3 \frac{1}{825} )= -1,5+3 \frac{1}{825}$
3 > 1.5 => знак выражения +

3) 3.7 - x =
x = $3 \frac{3}{4}$
3.7 - $3 \frac{3}{4}$ = 3.7 - 3.75 = -0.05

x = $8 \frac{2}{15}$
$3.7 - 8 \frac{2}{15} = 3 \frac{7}{10} - 8 \frac{2}{15} = 3 \frac{21}{30} - 8 \frac{4}{30} = - 4 \frac{13}{30}$

Merovingian_zn · Answer 1 · 2018-03-18T05:40:15+0000

5) y + (-3.4) =
y = -1.85
- 1.85 - 3.4 = - 5.25
y = $-22 \frac{1}{2}$ = -22.5
- 22.5 - 3.4 = - 25.9
y = $-5 \frac{8}{25}$ = -5.32
-5.32 - 3.4 = - 8.72

6) $a-(-2 \frac{3}{4}) = -2 \frac{5}{6}$
$a+2 \frac{3}{4} = -2 \frac{5}{6}$
$a = -2 \frac{5}{6}-2 \frac{3}{4}$
$a = -2 \frac{10}{12}-2 \frac{9}{12}$
$a = -5 \frac{7}{12}$

$x-4 \frac{1}{8} =-2 \frac{11}{12}$
$x=4 \frac{1}{8} -2 \frac{11}{12}$
$x=4 \frac{3}{24} -2 \frac{22}{24}$
$x=1 \frac{5}{24}$

1) a) 15 - 17 = -2
б) 15 - (-17) = 15 +17 = 32
в) -15 - 17 = -32
г) -15 - (-17) = -15 +17 = 2
д) -13,2 - ( $-13 \frac{1}{5}$ ) = -13,2 + 13,2 = 0
е) 0 - 6,3 = -6,3
ж) 0 - (-8,48) = 8,48
з) $-2 \frac{1}{2}$ - 0,5 = -2,5 -0,5 = -3
и) $\frac{5}{14} - (- \frac{2}{7} ) = \frac{5}{14} + \frac{4}{14}= \frac{9}{14}$
к) $1 \frac{3}{22} - 4 \frac{5}{33} = 1 \frac{9}{66} - 4 \frac{10}{66} =-3 \frac{1}{66}$

2) а) Разность чисел a и b положительна, если a > b (2)
б) $-1,5-(-3 \frac{1}{825} )= -1,5+3 \frac{1}{825}$
3 > 1.5 => знак выражения +

3) 3.7 - x =
x = $3 \frac{3}{4}$
3.7 - $3 \frac{3}{4}$ = 3.7 - 3.75 = -0.05

x = $8 \frac{2}{15}$
$3.7 - 8 \frac{2}{15} = 3 \frac{7}{10} - 8 \frac{2}{15} = 3 \frac{21}{30} - 8 \frac{4}{30} = - 4 \frac{13}{30}$