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densk [106]
2 years ago
8

Paula and Karen are playing a game. Paula counts by 4s. Karen counts by 5s. They try to pace the counting so they will say the f

irst common number together. What is the first number they both say together?
Mathematics
1 answer:
Slav-nsk [51]2 years ago
6 0

Answer:

20

Step-by-step explanation:

We are to determine the lowest common multiple of 4 and 5

the first six multiple of 4 are = 4, 8, 12, 16, 20, 24

the first six multiple of 5 are = 5, 10, 15, 20, 25

the multiple they both have in common is 20

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How do you simplify 9*499 using the distributive property?
Temka [501]
<span>1. 9(499) = 4491 = (200 + 299)9

For the basic properties examples are:
Addition, you can have 6 + 107 = 113 </span>
<span>Commutative Property by moving: 107 + 6 = 113 </span>
<span>Associative Property by grouping: (3 + 3) + (100 + 7 ) = 113 </span>
<span>Distributive Property by allotting: 2 (3) + 107 = 113   </span>

<span>Multiplication, you can have 6 x 107 = 642 </span>
<span>Commutative Property by moving: 107 x 6 = 642 </span>
<span>Associative Property by grouping: (3 + 3) x (100 + 7 ) = 642 </span>
<span>Distributive Property by allotting: 2(3) x 107 = 642<span> </span></span>

4 0
3 years ago
Read 2 more answers
In triangle ABC, the right angle is at vertex C, a = 714 cm and the measure of angle A is 78° . To the nearest cm, what is the l
Contact [7]

Answer:

c = 730 cm

Step-by-step explanation:

To solve this question we just need to use the law of sines:

The ratio between a side in the triangle and its opposite angle is always the same.

So we have that:

a / sin(A) = c / sin(C)

714 / sin(78) = c / sin(90)

sin(78) is equal 0.9781 and sin(90) is equal 1, so we have:

714 / 0.9781 = c / 1

c = 714 / 0.9781 = 730\ cm

3 0
2 years ago
It takes five days to repair 1250 meters of road. At this rate, how long will it take to repair 8 km of road?
rewona [7]
32 days bcz 1250 meters took 120 hours (120 hrs=5 days) so 8000 m will take: 8000x120/1250= 768 hrs
782 hrs/24= 32 days
3 0
2 years ago
If A=60 and B=60, then find the value of tanA(A+B) = tanA + tanA/1- tanA .tanB​
mihalych1998 [28]

Answer:

your answer is 160

Step-by-step explanation:

just add 60+60_160 u might have to add because its tanned

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daser333 [38]
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2 years ago
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