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ANEK [815]
3 years ago
12

Write a situation for 15 x - 20 is less than or equal to 130 and solve

Mathematics
2 answers:
My name is Ann [436]3 years ago
6 0
It’s greater than the answer will be -300
ankoles [38]3 years ago
4 0
15x-20<130
15x<130+20
15x<150
X=150/15
x<10
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A bacteria culture starts with 100 bacteria and doubles in size every half hour.
taurus [48]

Answer:

y=25600

y=100(2)^{2t}

y=252

Step-by-step explanation:

A bacteria culture starts with 100 bacteria and doubles in size every half hour.

y=100(2)^{2x}

where x represents the number of hours

(a) t= 4 hours

Plug in 4 for t  and find out the number of bacteria y

y=100(2)^{2 \cdot 4}\\y=25600

25600 bacteria

y=100(2)^{2t}

convert 40 seconds into hour

40 divide by 60 =2/3

y=100(2)^{2\frac{2}{3} }\\y=100(2)^{\frac{4}{3} }\\\\y=252

The graph is attached below

4 0
3 years ago
If f(x) = -9x +9 and g(x)+squroot x+1, what is (f degree sign g) 24
Leno4ka [110]
(f ° g) (x) means the composition of the two functions in this order f (g (x) )

So, given f(x) = - 9x + 9 and g(x) = √(x + 1),  you must do this:

f(g(x)) = - 9 [ g(x) ] + 9 = - 9 [√(x+1) ] + 9 => f(g(24) = - 9 √(24 + 1) + 9 = - 9√25 + 9 =

= -9(5) + 9 = -45 + 9 = - 36

Answer: - 36
7 0
3 years ago
Pls help with steps 2 and 4!!! (Will give brainliest)
Natalka [10]

The Answer to your problem is:

#2 Answer:

13x + 7y


#4 Answer:

13x + 7y


I believe it's Distribute

6 0
3 years ago
What is an equivalent expression to 9(c+5)?
Thepotemich [5.8K]
9c + 45 because you factor the 9 into both c and 5
4 0
3 years ago
Read 2 more answers
When Antonio opens and lays a cereal box out flat, he sees that the top and the bottom of the box each measure 2 inches by 7 inc
Sedbober [7]

Answer:

The answer is 219

Step-by-step explanation:

This is just multiplication and multiplying everything then adding it together.

5 0
4 years ago
Read 2 more answers
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