<h2>Решение (а):</h2>
Чтобы найти значение x, воспользуемся перекрестным умножением.
Что значит ,
= 2 × 30 = 5 × х
= 2 × 30 = 5x
= 60 = 5x
= х = 60 ÷ 5
= х = 12
Следовательно, 2/5 = 12/30.
<h2> Решение (б):</h2>
Чтобы найти значение x, воспользуемся перекрестным умножением.
Что значит ,
= 30 × 8 = 48 × х
= 30 × 8 = 48x
= 240 = 48x
= х = 240 ÷ 48
= х = 5
Следовательно, 5/8 = 30/48 .
Let x represent the number of hamburgers sold, and (x - 55) represent the number of cheeseburgers sold.
Set up an equation:
hamburgers + cheeseburgers = total number of burgers
x + (x-55) = 445
solve for x:
2x - 55 = 445
2x = 445 + 55
2x = 500
x = 500÷2
x = 250
This means 250 hamburgers were sold on Tuesday.
Hope this helps!
-Jabba
Answer:
y=3^x+1
Step-by-step explanation:
y=3^x+1
do the graph for each equation
or input point : when x=0, y=2 , when x=1 , y=4
Answer:
(-11,11]
Step-by-step explanation:
the first circle is open so it is the () parentheses, the second circle is closed so it is the [] brackets.
Answer:
21.98/C
Step-by-step explanation:
The equation for circumference is pi(d).
so 3.14*7 is about 21.98