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GaryK [48]
3 years ago
7

Write and solve an equation to find the speed that Brian rides his bike, if he rides ⅖ of an hour and travels 3 miles.

Mathematics
1 answer:
GrogVix [38]3 years ago
6 0
It would be 3•2/5 the dot also represents a multiplication simble
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There are 158 birds on the endangered species list in some year. this is 16 more than twice the number of reptiles on the list.
S_A_V [24]
Let the number of reptiles on endangered list be 'x'

2x + 16=158

2x=158-16

2x=142

x=71

So there are 71 reptiles on the endangered list
5 0
3 years ago
the sum of the first 6 terms of a geometric series is 15624 and the common ratio is 5. what is the first term of the series?
9966 [12]

Answer:

first term a=4

Step-by-step explanation:

Sum of the first 6 terms S6 = 15624

common ratio r= 5

n= 6

first term a=?

Formula: S6= a(r^n-1)/r-1

15624 = a( 5^6-1)/5-1

15624 = a(15625-1)/4

15624= a( 15624)÷4

15624= 15624a÷4

Cross multiply

15624×4 = 15624a

62496 = 15624a

divide both sides by 15624

62496÷15624 = 15624a÷15624

4 = a

a= 4

7 0
3 years ago
22)3441<br> What’s the Answer
daser333 [38]

Answer:757.02

Step-by-step explanation:

3 0
3 years ago
What is the answer to the problem 21+40(2x-3)
12345 [234]

Answer:

x = 1.2375 or 99/90

Step-by-step explanation:

<u>Step 1:  Distribute</u>

21 + 40(2x - 3)

21 + 80x - 120

<u>Step 2:  Combine like terms</u>

21 + 80x - 120

80x - 99

<u>Step 3:  Solve for x</u>

80x - 99 + 99 = 0 + 99

80x / 80 = 99 / 80

x = 1.2375

Answer:  x = 1.2375 or 99/80

3 0
3 years ago
Read 2 more answers
MUSIC A song has 28 beats in 4 seconds. At this rate, how many beats are there in 30 seconds?
Deffense [45]
In 4 seconds, number of beats = 28
In 1 sec., it is = 28/4 = 7

Now, In 30 seconds, it would be: 30 * 7 = 210

In short, Your Answer would be: 210 beats

Hope this helps!
4 0
3 years ago
Read 2 more answers
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