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Elena L [17]
3 years ago
10

A car is traveling at a rate of

Mathematics
2 answers:
Tomtit [17]3 years ago
8 0
63/60 = 1.05 km/min
1.05 * 20 = 21 km/20min
Oxana [17]3 years ago
3 0
63/60min = 1.05k per min
(1.05k/min) * (20min) = 21k
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The ratio of red cars to blue cars in a parking lot was 5:3 if there were 40 red cars how many blue cars would there be
AveGali [126]

Answer:

24 blue cars

Step-by-step explanation:

Set up a proportion to solve this...

40/5 = x/3      (forty red cars is to five red cars as 'x' number of blue cars is to 3 blue cars)

Now solve by cross multiplying...

120 = 5x

    24 = x

6 0
3 years ago
F(-12) if f(x) = 2x + 15
Alenkinab [10]

Answer: f(-12)=-9

Step-by-step explanation:

We have the following function:

f(x)=2x+15

And we have to evaluate it when x=-12, this means we have to substitute x by -12:

f(-12)=2(-12)+15

Solving:

f(-12)=-24+15

Finally:

f(-12)=-9

8 0
3 years ago
How do you find the HCF of 15t and 6s?
earnstyle [38]

Answer:

HCF=3

Step-by-step explanation:

Factors of 15t= 3*5*t

Factors of 6s= 2*3*s

HCF= Common factors

common factor = 3

HCF=3

4 0
2 years ago
3(5+6) ??? its distributive property
kaheart [24]
Yes, we apply the distributive property to simplify this expression.

3*5 = 15
6*3 = 18

15 + 18 is the final answer.
4 0
3 years ago
Read 2 more answers
What are the names of three planes that contain point B? a planes ABD, EFG, and BDH b planes ABD, AEF, and DHF c planes CDH, ABF
Radda [10]

Answer

Sol: The correct answer is b. three planes that contain point B are ABD, AEF and DHF.

8 0
3 years ago
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