Find the equations −8.58÷□=3.9−3.2×□=24

Ernstfalld

Ernstfalld

Answered question

2020-11-01

Find the equations

8.58÷=3.9
3.2×=24

Answer & Explanation

Nathalie Redfern

Nathalie Redfern

Skilled2020-11-02Added 99 answers

c) A division fact of a÷b=c is equivalent to the division fact a÷c=b.

Therefore 8.58÷=3.9 is equivalent to the division fact 8.58÷3.9=.

Since 8.58÷3.9=2.2, then 8.58÷2.2=3.9.
d) A multiplication fact of a×b=ca×b=c is equivalent to the division fact b=c÷a.

Therefore 3.2×=24 is equivalent to the division fact =24÷(3.2).

Since 24÷(3.2)=7.524÷(3.2)=7.5, then 3.2×7.5=24.

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