answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
solong [7]
2 years ago
15

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

20 seconds at high speed and then 30 seconds at low speed, what distance would the car have traveled
Mathematics
2 answers:
amm18122 years ago
7 0

Answer:

15 seconds at high speed

1 sec = 40 cm

15 sec = 40 x 15

15 sec = 600 cm

30 seconds at low speed

1 sec = 15 cm

30 sec = 15 x 30  

30 sec = 450 cm

Total distance = 600 + 450 = 1050 cm

Step-by-step explanation:

igomit [66]2 years ago
3 0

Answer:

1200 cm

Step-by-step explanation:

You might be interested in
A random sample of 65 high school seniors was selected from all high school seniors at a certain high school. The following scat
ladessa [460]

The residual value comes out to be 2.94 cm and height is 157.06 cm

<u>Explanation:</u>

The regression equation is calculated at the first step.

height = 105.08 plus 2.599 multiply foot length

At foot length = 20cm, height = 105.08 plus 2.599 multiply 20

= 157.06 cm

Residual = Actual minus predicted value = 160 minus 157.06

=2.94 cm

B) The residual standard deviation generally gives  a sense of the goodness of fit of goodness of regression equation on our data. The magnitude tells us that how much will be predicted values from model will vary from actual values. the linear model is justified.

5 0
1 year ago
Help me with this question!!!
qwelly [4]

Step-by-step explanation:

×=100

1. Divded 35 by 14 and u get 0.4

2

Divided 40 by 0.4 and u get 100

6 0
2 years ago
Read 2 more answers
An 8 foot length of 4 inch wide crown molding costs $16. How much will it cost to buy 40 feet of crown molding?
malfutka [58]
Converting feet to inches, 8*12=96 and 96*4=384. Next, 40*12=480. Since 384*x (if x represents the cost per inch of crown molding)=16*100=1600 cents due to that for every inch, we add x amount of money, we can find x to be 1600/384=800/192=400/96=200/48=100/24=50/12=25/6 by simply dividing both the numerator and denominator by 2 each time. Since we add x amount of money for every inch, and we have 480 inches, 480*x=480*25/6=2000 cents=2000/100=20 dollars is our answer
6 0
2 years ago
On a december day, the probability of snow is .30. the probability of a "cold" day is .50. the probability of snow and "cold" we
Svetradugi [14.3K]
Events A and B are independent if the following holds true:

P(A ∩ B) = P(A) * P(B)

where P(A ∩ B) is the probability of A and B, P(A) is the probability of A, and P(B) is the probability of B.

Setting A = "snow" and B = "cold weather", and plugging in the above numbers will give you the answer.
7 0
2 years ago
School lunches cost PHP 135.50 per week. About how much would 15.5 weeks of lunches cost?
Pavlova-9 [17]

Answer: $2,100.25

Step-by-step explanation:

$135.50 x 15.5 = $2,100.25

7 0
2 years ago
Other questions:
  • Two competing gyms each offer childcare while parents work out. Gym A charges $9.00 per hour of childcare. Gym B charges $0.75 p
    9·2 answers
  • I just purchased 9 products from you at $44.00. I just realized my company offers a 20% discount on all of your products. Can yo
    12·2 answers
  • Y=-6 and 6x+y=8 then
    8·2 answers
  • the members of the gardening group plan to build a walkway through the garden as formed by the IHOP potenuse of each of the four
    9·1 answer
  • If the measure of angle BCD=51 degrees, solve for x.
    8·1 answer
  • The following table shows the annual income, in dollars, and amount spent on vacation, in dollars, for a sample of 8 families.
    10·1 answer
  • Gabriel wants to send a parcel to Italy.
    11·1 answer
  • Manuel wants to go snowboarding with his friends. The closest ski and snowboard resort is approximately 20 miles west and 50 mil
    9·1 answer
  • Solve this equation. Enter your answer in the box.<br> 75 – 3.5y – 4y = 4y + 6
    12·2 answers
  • A cement mixer can hold up to 681 kilograms of cement. How many 100-pound bags of cement can be put into the mixer at one time?​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!