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denis-greek [22]
2 years ago
14

For a car moving at a constant speed, the distance traveled varies directly with the time spent driving. If such a car travels 2

10 miles in 7 hours, how many
miles does it travel in 4 hours?
Mathematics
1 answer:
ipn [44]2 years ago
6 0

Answer:

120 miles.

Step-by-step explanation:

Use long division to find how many miles the car travels in 1 hour then we multiply by 4

: (7÷210=30)×4=120miles. Hope this helped ;D

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If the family has three pets, what is the theoretical probability that they have three dogs or three cats?
dsp73
It will be a 1/27 chance that the family will have 3 dogs or 3 cats 1/3x1/3x/13=1/27
4 0
3 years ago
Katelyn had 2 dogs and 3 cats. Which of the following shows the ratio written correctly for the number of dogs to cats?
Rudik [331]

Answer:

2:3

Step-by-step explanation:

Ratio is indicated by :

Its dogs to cats, right so ratio is number of dogs:number of cats which is 2:3

Hope this helps plz mark brainliest if correct :D

8 0
2 years ago
Read 2 more answers
Evaluate 3/7r + 5/8s when r = 14 and s = 8
emmasim [6.3K]

\frac{3}{7}*r + \frac{5}{8} *s

let us first plug the values of r and s here

r=14 and s=8

\frac{3}{7}*14 + \frac{5}{8} *8

Now here we can cancel 14 and 7 as 7*2 =14 , also we can cancel 8 and 8 as 8*1 is 8, so our simplified new form is:

\frac{3}{1}*2 + \frac{5}{1} *1

Now we can multiply 3*2 and 5*1

3*2 =6

5*1=5

Next we add the two numbers

6+5 =11

So this is how we get the answer 11

4 0
3 years ago
Will mark brainliest, I'm having some trouble (question in attachment)
Liono4ka [1.6K]

Answer: 45b^4/32

Step-by-step explanation: First multiply the two fractions

15b^3y(3b)/8y x 4

Multiply 3 by 15

45b^3yb/8y x 4

Raise b to power of 1

45(b^1b^3)y/8y x 4

Use power rule to combine exponents

45b^1+3 y/8y x 4

Simplify

45b^4y/32y

Cancel common factor of y

45b^4/32

4 0
3 years ago
What is b for x^2 -6x-3=0
andrew-mc [135]

Answer:

x = 3 + 2 sqrt3 Or 3 - 2 sqrt 3

Step-by-step explanation:

8 0
3 years ago
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