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2023年10月24日 · Enter your answers in the boxes to correctly complete the equations. 84 × 7 = (80 + 4) × 7 = 560+ 28 = 588. s68129289 has a question! Can you help? Jonathan and his sister Jennifer have a combined age of 48. If Jonathan is twice as old as his sister, how old is Jennifer.

Learning the multiplication of 84 times 7 is an essential skill for problems based upon fractions, decimals, and percentages. It helps in solving real-life problems quickly. If you want to find what 84 times 7 means, think of it as 84 added together 7 times.

84×7估算的话，可以把84看成80，所以84×7≈80×7=560。 已赞过 已踩过. 你对这个回答的评价是？

2023年9月27日 · Continue Learning about Math & Arithmetic. 7 x 12? 84. What is the highest common factor of 42 49 and 84? The greatest common factor of 42, 49 and 84 is 7. How do you work out what x means in theis equation 5x plus 7 equals 84-6x? you say: 5x+7=84-6x 5x+6x+7=84-6x+6x 11x+7=84 11x+7-7=84-7 11x=77 x=77/11 x=7.

Middle School Math Solutions – Polynomials Calculator, Factoring Quadratics Just like numbers have factors (2×3=6), expressions have factors ((x+2)(x+3)=x^2+5x+6). Factoring is the process...

2022年9月15日 · New questions in Mathematics QUESTION 1 1.1 Convert the following decimal fractions to the form [tex]\( \frac{a}{b} \)[/tex]; where [tex]\( a, b \in \mathbb{Z} \)[/tex] and Suppose that [tex]$E$[/tex] and [tex]$F$[/tex] are two events and that [tex]$N(E \cap F) = 220$[/tex] and [tex]$N(E) = 580$[/tex].