Let x = amount of appliances Jack sold
Let y = amount of appliances Dion sold.
We need to construct a system of equations to solve this problem
33 = x + y
y = 2x - 3.
Let's solve this system of equations by substitution.
33 = x + (2x - 3). Combine like terms.
33 = 3x - 3. Add 3 to both sides.
36 = 3x. Divide both sides by 3
12 = x. Plug this value into one of our original equations.
33 = 12 + y. Subtract 12 from both sides
y = 21
Jack sold 12 appliances and Dion sold 21 appliances.
Answer:
BA = 12
Step-by-step explanation:
All the right triangles are similar, so the ratio of hypotenuse to long side is a constant. In particular ΔABC ~ ΔDBA, so ...
hypotenuse/long-side = BC/BA = BA/BD
Cross multiplying gives ...
BA² = BC·BD
BA = √(BC·BD) = √(16·9)
BA = 12
20.83 would be written as:
20 83/100
This is why.
The 20 is the whole number
The 83 is is the tenths and hundredths place
Since the 3 is in the hundredths place, it makes the 83/100 what it is.
So, the answer would be 20 and 83/100
Answer:
780 calories
Step-by-step explanation:
Robert ate a carton of yogurt = 260 calories
he ate a sandwich = 425 calories
And he also ate an orange = 95 calories
Altogether he consumed = 260 + 425 + 95
= 780 calories.
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