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blsea [12.9K]
2 years ago
11

Evaluate 5(x + y) for x = 3 and y = 9. +

Mathematics
1 answer:
Elza [17]2 years ago
5 0

Answer:

60

Work:

3+9=12

12•5=60

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When Jennifer went to bed, there was 4 3/4 inches of snow on the ground. When she woke up, there was 6 1/2 inches of snow on the
kodGreya [7K]

let inches of snow be x..

x=6 1/2-3/4

3/4+x=6 1/2

Explanation:

Convert 1/2 into similar denominator:

1/2=2/4=x2

3/4=3/4=x1

Convert into mixed number:

6 2/4=6x4+2=26/4

Subtract the terms:

26/4-3/4=23/4

Answer:

x=23/4 or 5 3/4.

5 0
2 years ago
How do i evaluate the expression S=8;6s^2
bazaltina [42]

Good evening

Answer:

<h2>384</h2>

Step-by-step explanation:

s = 8 ⇒ 6s^2 = 6(8)²

                     = 6×64

                     = 384

_____________________

:)

3 0
3 years ago
Read 2 more answers
If f(x) - 3x? and g(x) = x+2, find (f•g)(x).
hammer [34]

Answer:

-3x^{2} -6x

Step-by-step explanation:

f(x)= - 3x

g(x) = x+2

(f•g)(x)

f(x) • g(x)

plug in

-3x • x+2

-3x(x+2)

distribute the -3x

-3x^{2} -6x

hope this helps!

6 0
3 years ago
For what value of a does<br> (9) ***<br> = 3438-1<br> -1<br> 0<br> 1<br> no solution
mario62 [17]

Answer:

<h2>0</h2>

solution,

(\frac{1}{7} ) ^{3a + 3}  =  {343}^{a - 1}  \\ or \: ( {7}^{ - 1} ) ^{3a + 3}  =  {(7}^{3} ) ^{a - 1}  \\ or \: (7) ^{ - 3a - 3}  =  {(7)}^{3a - 3}  \\ or \:  - 3a - 3 = 3a - 33 \\ or \:  - 3a - 3a =  - 3 + 3 \\ or \:  - 6a =  0 \\  \: a = 0

hope this helps..

Good luck on your assignment..

3 0
3 years ago
In the morning, a cow produced 2 3 5 liters of milk, and in the evening it produced 3 3 10 liters more than in the morning. How
love history [14]

Answer:its 8 1/2

Step-by-step explanation: you add 3 3/10 and 2 3/5 then add 2 3/5 again and you get 8 1/2

6 0
2 years ago
Read 2 more answers
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