Answer:
- 3
Step-by-step explanation:
3 times the sum of 5 and 4 is subtracted from 30
i.e.,
3 × (5 + 4) - 30
3 × 9 - 30
27 - 30 = - 3
Thus, 3 times the sum of 5 and 4 is subtracted from 30 is equal to -3
<u>-TheUnknown</u><u>Scientist</u>
Answer:
22.
Step-by-step explanation:
"Plug and chug" .75 multiplied by different numbers, up until you get to 16.5 as an answer. 22 is what you multiply it by, so that is correct.
The answer is $84.29
Let the number of minutes be x.
$35.99 is fixed price and does not depend on the number of minutes x. Each minute costs $0.21 so it depends on x and we have 0.21x in the function. However, 250 minutes are already included and should not be included in x. Therefore, the function that represents the monthly cost looks like this:
f(x) = 35.99 + 0.21 * (x - 250)
Now, let's calculate for x = 480 minutes:
f(480) = 35.99 + 0.21 * (480 - 250)
f(480) = 35.99 + 0.21 * 230
f(480) = 35.99 + 48.30
f(480) = 84.29
Answer:
(3, 15 )
Step-by-step explanation:
Given the 2 equations
x + y = 18 → (1)
y = 5x → (2)
Substitute y = 5x into (1)
x + 5x = 18
6x = 18 ( divide both sides by 6 )
x = 3
Substitute x = 3 into (2) for corresponding value of y
y = 5(3) = 15
Solution is (3, 15 )
Out of 28 kids there is one that isnt 12
so 27 kids are 12 years old
1 isnt
concluding that, that 6th grade might be 11
so 1 out of 28
1:28