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Natasha2012 [34]
2 years ago
9

It takes Kim 7 hours to proof a chapter of Hawkes Learning Systems' Introductory Algebra book and it takes Harding 2 hours. How

long would it take them working together? (Round your answer to two decimal places.)
Mathematics
1 answer:
Olegator [25]2 years ago
3 0
It would take them 4.5 hrs working together
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Why does math get so hard that you have an answer but you forget what your answer was because it was so so so so so so so so so
svetoff [14.1K]
Bc u dont write ur work down. If u actually take the steps to do the question it wont be that bad
8 0
3 years ago
Read 2 more answers
P = 215(1.005)t/3
Reil [10]

Answer:

(D) 36

Step-by-step explanation:

0.5%  = 0.5/100  =  0.005

It is given that the population (215) is predicted to increase by 0.5%. To know the value after increment, 215 has to be multiplied by (1 + 0.005) or 1.005.

In the equation P  =  215(1.005)t/3, the value of t/3 has to be equal to 1 for 0.5% increase.

t/3  =  1

t  =  3 years

Convert years to months.

n  =  3 ⋅ 12 months

n  =  36 months

The correct option is D.

Thanks!

Mark me brainliest!

6 0
2 years ago
1. x + 2x - 1 = 38<br> Inverse operation
Lena [83]

Answer:

x=13

Step-by-step explanation:

First, you add the x's together: 2x+x=3x

Now you have:3x-1=38

Add 1 to both sides: 3x=39

1 cancel on the left side of the equation

Divide 3 on both sides: x=39/3

3 cancels on the left side and 39 divided by 3 is 13:

x=13

Hope this helps!

6 0
3 years ago
The speed limit on a road drops down to 15 miles per hour around a curve. Mr. Gerard slows down by 10 miles per hour as he drive
vladimir1956 [14]

Answer:

x ≤ 25mph

Step-by-step explanation:

Given that :

Speed limit drops to 15 miles per hour at curve

Driver slows down by 10 miles per hour as he drives around the curve

The driver's speed before reaching the curve is :

Let speed befure curve = x

Lowest speed before curve = 15 +. 10 = 25 mph

x ≤ 25mph

7 0
3 years ago
Find the value of x.
Travka [436]

Answer:X=9

Step-by-step explanation:

x+18=3x

18=2x

x=9

4 0
3 years ago
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