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kobusy [5.1K]
3 years ago
7

What is an equivalent expression to 4(4a+5)?

Mathematics
1 answer:
olga2289 [7]3 years ago
8 0

Answer:

4(4a+5)

16a+20

Step-by-step explanation:

4×4a=16a

4×5=20

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Write an exponential growth function to model the situation. A population of 422,000 increases by 12% each year.
Naya [18.7K]
This is just like working with money in a bank account
that's earning 12% interest.

If the population is 422,000 today, and
' n ' is the number of years after today,
then

         Population  =  422,000 (1.12)ⁿ .
6 0
3 years ago
Please help with i am all ready late to turn it in
nekit [7.7K]

Answer:

1.-113

2.62

Step-by-step explanation:

1.-9^2+3(-9)-5

-81+-27-5

-113

2.5(7-(-9))+2(-9)

5*16-18

80-18

62

4 0
3 years ago
Are these ratios equivalent?<br> 1 teacher to 9 students<br> 5 teachers to 45 students
IrinaVladis [17]

Answer: yes the ratios 1:9 and 5:45 are equivalent.

Step-by-step explanation:

1:9*5:5=5:45

U got any more math questions that I can answer? I’m really bored and I have to stay busy!

3 0
3 years ago
in a bag of candies there are `3 red candies, 13 green candies, 13 yellow candies, and 13 blue candies. If you choose 1 candy fr
rodikova [14]

Answer:

29/42

Step-by-step explanation:

No. of red candies = 3

No. of green candies = 13

No. of yellow candies = 13

No. of blue candies = 13

T.T = 42

Probability that candy will not be blue= 13+13+3 = 29

= 29/42

Hope it helps!

Pls mark me brainliest

Have a good day.

8 0
3 years ago
Can someone help me with questions 1-4
Natalka [10]
1.)
Old Number:35
New Number:45

Now, subract the new number(45) from the old number. (35)

45-35 is 10. Now divide the old number (35) by 10. 
You'll get 3.5. 3.5%, increase is the answer for #1.

2.) Old: s (students)
     New: 36,750

Do 100+5 (Addition because we do not know what the old number is.) 100+5 is 105. Move decimal over twice and you get 1.05. Multiply 36,750 by 1.05.
There were 38,587.5 kids last year.


3.)Since the discount is 15% off, do 100-15=85. Now, move the decimal over from the percent, and that makes that .85. Now multiply 50x.85. You get 42.5, or $42.50. Now the coupon is 10%, So subtract 100-10, giving you 90. Now move the decimal over. .90. Multiply 42.5 (or 42.50) by .90. You get 38.25. You do have enough money.

4.) Subtract 100-15, giving you 85. Move decimal over from percent. .85.
Now you would multiply .85 times k. B should be the answer.

5 0
3 years ago
Read 2 more answers
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