1answer.
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
Karo-lina-s [1.5K]
2 years ago
7

The temperature was -7 degrees in the morning. By noon, it was 12 degrees outside. What was the change in temperature?

Mathematics
1 answer:
11111nata11111 [884]2 years ago
6 0

Answer:

19 degrees

Step-by-step explanation:

12-(-7)= 19

(12+7=19)

You might be interested in
In a certain community, 30% of the families own a dog, and 20% of the families that own a dog also own a cat. It is also known t
Nesterboy [21]

Answer:

a) 0.06

b) 0.778

Step-by-step explanation:

Let's suppose a community of 100 families just to facilitate the calculation.

30% of the families own a dog

Dog = 30% of 100 = 30

20% of the families that own a dog also own a cat = 20% of 30 = 6

27% of all the families own a cat = 27% of 100 = 27

So, 6 families own a dog and a cat.

As 30 families own a dog, [30 - 6 =] 24 families own only dogs

As 27 families own a cat, [27 - 6 = ] 21 families own only cats

See picture attached.

a) What is the probability that a randomly selected family owns both a dog and a cat?

P(dog and cat) = dog ∩ cat/total = 6/100 = 0.06

b) What is the conditional probability that a randomly selected family doesn't own a dog given that it owns a cat?

So, only cat/total cat

P (not dog|cat) = 21/27 = 0.778

3 0
3 years ago
Todd plans to swim 18 laps in the pool. Each lap is 50 yards. So far Todd has
PolarNik [594]

Answer:82%

Step-by-step explanation:

First you do : 50 * 18= 900

Next you do : 738/900

Your answer is 82%

6 0
3 years ago
Read 2 more answers
MATH HELP PLEASE DUE SOON
Arlecino [84]

Answer:

a. Alternate exterior angles.

b. <A and <B are congruent. This diagram involves a line intersecting two parallel lines, forming the congruent angles <A and <B on opposite sides of the transversal.

c. They are alternate exterior angles like <A and <B, but because it is not guaranteed that the transversal is intersecting parallel lines in this case, we cannot prove that <C and <D are congruent alternate exterior angles.

7 0
2 years ago
On average, a commercial airplane burns about 3.9 × 10³ mL of gasoline per second. There can be as many as 5.1 × 10³ airplanes i
Lemur [1.5K]
19890000 mL of gas per min
6 0
3 years ago
HELP!!! i am stuck here
irina1246 [14]

Answer:

<em>2.5 hours</em>

<u>Skills needed: Speed, distance, time problems</u>

Step-by-step explanation:

1) We are given speed and distance, and have to find out the the time (in hours).

- In terms of units, everything is matched up (Since distance and speed use kilometers, and speed and time use hours).

- Time is always the distance you travelled (how far) divided by how fast you travelled (the rate/speed)

---> We can use the formula for time: t=\frac{d}r

t= time

d=distance

r=rate/speed

2) Now, let's plug in for distance and rate.

---> t=\frac{7.5}{3} = 2.5

2.5 hours is the answer.

4 0
2 years ago
Other questions:
  • What is the measure of angle FXE?​
    6·1 answer
  • Which graph would help solve the equation5log(x+3)=5?
    6·1 answer
  • Which trigonometric function is being used if we get the fraction 6/10 as our answer? Question 3 options: sin(A) cos(A) tan(A) t
    5·2 answers
  • If m &lt;2 =40o then What does m &lt;z equal
    9·1 answer
  • The cost of two mopeds is the same as the cost of seven bicycles. The cost of one bicycle is $152. Therefore, the cost of one mo
    13·1 answer
  • Summarize the reason for writing the Declaration of Independence. <br><br> 1–3 paragraphs long
    13·1 answer
  • 9x-4=3x-28 step by step
    14·1 answer
  • What does 迪兹坚果 mean?​
    5·1 answer
  • Given the preimage and image, find the dilation scale factor​
    9·1 answer
  • A printer is printing photos. For every 8 photos, the printer takes 2 minutes. Complete the table below showing the number of ph
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!