Question

умоляю помогите решить (полное решение!!!)​

Answer 1

$( \frac{1}{4} \times {2}^{4} - 3.5) \div \frac{1}{15} + (15 - 27) = ( \frac{1}{4} \times 16 - 3.5) \div \frac{1}{15} + ( - 12) = (4 - 3.5) \div \frac{1}{15} - 12 = 0.5 \div \frac{1}{15} - 12 = \frac{5}{10} \times \frac{15}{1} - 12 = \frac{75}{10} - 12 = 7.5 - 12 = - 4.5$

$(5.4 \div 9 - 1.8) \div (4 + 16 \times \frac{1}{4} ) = (0.6 - 1.8) \div (4 + 4) = - 1.2 \div 8 = - 0.15$

$(6.3 + (7.2 - 8.4) \times 7 + 2 \div (1.8 - 2)) = (6.3 + ( - 1.2) \times 7 + 2 \div ( - 0.2)) = (6.3 + ( -8.4) + ( - 10)) = - 2.1 - 10 = - 12.1$

Answer 2

$1)(\frac{1}{4}*(2^{4})-3,5):\frac{1}{15}+(15-27)=(\frac{1}{4}*16-3,5):\frac{1}{15} +(-12)=\\\\=(4-3,5)*15-12=0,5*15-12=7,5-12=-4,5$

$2)(5,4:9-1,8):(4+16*\frac{1}{4} )=(0,6-1,8):(4+4)=-1,2:8=-0,15\\\\\\3)(6,3+(7,2-8,4)*7+2:(1,8-2))=(6,3+(-1,2)*7+2:(-0,2))=\\\\=6,3-8,4-10=-12,1$