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ad-work [718]
3 years ago
11

Roberto’s toy car travels at 30 centimeters per second at high speed and 20 cm/sec at low speed. If the car travels for 30 secon

ds at high speed and then 30 seconds at low speed , what distance would the car have traveled ?
Mathematics
1 answer:
Nataly_w [17]3 years ago
5 0
It would of traveled 1500 cm. 30 times 30 seconds is 900 and 30 times 20 is 600. Both added is 1500
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a chinchilla weighs 2 pounds its weight is 1/8 the weight of a koala write an expression and solve it to show how much the koala
Wittaler [7]
So you can say that the weight of a koala here can be x.

So x * 1/8 = 2

2 being the chinchilla's weight and the 1/8 coming from the fact that the chinchilla weighs 1/8 of the weight of the koala.

So you can just divide both sides by 1/8 first.

x * 1/8 = 2

/ 1/8       / 1/8

Or,

x *1/8 * 8/1 = 2 * 8/1

x = 16

So the koala weighs 16 pounds.
6 0
3 years ago
First-person to answer with an Explanation get Brainliest
andrew11 [14]

Answer:

1) Yes, 1/2 and 2

2) b=1/2 × t

t=2 × b

Step-by-step explanation:

1) Yes, because <em>every</em> package of a toy equals 2 batteries. The constant of proportionality is 1/2 and 2 because 1 ÷ 2 = 1/2 and 2 ÷ 1 = 2 (amount of toys divided by amount of batteries and vice versa)

2) b = 1/2t, because for every battery, there is 1/2 a toy.

t = 2b, because for every toy, there are 2 batteries

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7 0
2 years ago
Prove that for every two positive integers a and b that
Aleks [24]
\((a+b)(\frac{1}{a}+\frac{1}{b}) \ \textgreater \  or = 4\)&#10;\\&#10;1+a/b+b/a + 1  \geq 4&#10;\((a+b)(\frac{1}{a}+\frac{1}{b}) \ \textgreater \  or = 4\)&#10;

distributed 

choose 1 as your lowest positive integer

plug 1 into a and b

1 + 1 + 1 + 1\geq 4

6 0
2 years ago
Jeff rear-ended a car on his way to work and damaged his vehicle. He drove his car to the local body shop for an
crimeas [40]

Answer:

A $3225

Step-by-step explanation:

Total = $3725

Dectuable = Able to be deducted

$3725 - $500 = $3225

7 0
2 years ago
How do you graph a ratio
valentina_108 [34]
The graphing of a ratio includes one axis representing part A of the ratio and the other axis representing part B of the ratio. for example, if you have 20 defects per 100 parts of a car, the defects would be represented as part a and the total parts would be represented by part b. These graphs show one part on the left hand and the other on the bottom of the graph, and the graphing of each ratio acts a lot like graphing an equation you would normally see.
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2 years ago
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