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
RideAnS [48]
2 years ago
9

5 • (- 10) x = 100 Esse número apagado foi (A) 2 (B) 20 (C) -5 (D) -257*

Mathematics
1 answer:
Anettt [7]2 years ago
4 0
The answers is A
Explanation ;)
You might be interested in
A hybrid car can travel 40 miles per gallon. Approximately how many gallons of fuel will the car need to travel 20 km? (5 points
-BARSIC- [3]

Answer:

<em>To travel 20 Km, the hybrid car needs 0.3125 gallons of fuel.</em>

Step-by-step explanation:

<u>Proportions</u>

The hybrid car can travel 40 miles per gallon.

Since one mile is equivalent to 1.6 Km, the distance traveled per gallon is 40*1.6 = 64 Km.

Now the distance is expressed in Km, we can find the gallons needed to travel 20 Km, by calculating 20/64 = 0.3125.

To travel 20 Km, the hybrid car needs 0.3125 gallons of fuel.

4 0
3 years ago
A sports magazine claims that in a certain country, 45% of people like soccer A news channel asked 30 randomly selected people i
LiRa [457]

Answer:

Step-by-step explanation:

Hello!

The parameter of interest is "the population proportion of people that like soccer A news channel"= p

The hypothesis are:

H₀: p = 0.45

H₁: p ≠ 0.45

To study the population proportion you have to use the approximation of the standard normal distribution:

Z= \frac{p'-p}{\sqrt{\frac{p(1-p)}{n} } } ≈ N(0;1)

A sample of n=30 was taken and surveyed, 18 of those answered positively, then the sample proportion is:

p'= 18/30= 0.6

The statistic under the null hypothesis is:

Z_{H_0}= \frac{0.60-0.45}{\sqrt{\frac{0.45*0.55}{30} } } = 1.6514

I hope it helps!

6 0
3 years ago
Please help me the venn diagram is wrong too im confused on how to do this :(((
Kisachek [45]

Answer:

probability of chosing a student that has a cat and a dog is 9/25

Step-by-step explanation:

And yes the Venn diagram is wrong because you forgot to subtract 9 from 15 and 16

This makes it

[ 3 ( 6 ( 9 ) 7 ) ]

3 + 6 + 9 + 7 = 25

8 0
3 years ago
Find the sum 49+50+51+52+...+141+142
gayaneshka [121]

Answer:

8977

Step-by-step explanation:

Hello,

49+50+51+52+...+141+142\\\\=(48+1)+(48+2)+(48+3)+(48+4)+...+(48+93)+(48+94)\\\\=48\times 94+(1+2+3+4+...+93+94)\\\\=48\times 94 + \dfrac{94\times 95}{2}\\\\=47(48\times 2+95)=47\times 191=8977

thanks

7 0
3 years ago
PLS HELP! The number of tickets sold at the Amazing Art Museum on Saturday was 175% of the ticket sales on Friday. If 2,000 tick
kiruha [24]

Answer:

The answer is B

Step-by-step explanation:

Because 175% means its more than what it was before. Hope this helped!!

5 0
3 years ago
Read 2 more answers
Other questions:
  • If someone doesn’t help me with this stupid hw you’re a burnt garbanzo bean
    12·1 answer
  • What's 2a - 3 = 4 + 11 ( a + 1
    9·2 answers
  • NEED HELP A.S.A.P
    5·1 answer
  • 20 ounces of cereal for 4.40 or 16 ounces of the same brand for 3.68 which is the better buy
    15·1 answer
  • A 3lb bag of red onions cost $1.38. What is the unit price?
    14·2 answers
  • Alex paid $6 for renting a movie for 3 days. Which graph shows the relationship between the cost of renting the movie for differ
    14·2 answers
  • What's an easy way to remember integers​
    15·2 answers
  • Find the slope of the line that is perpendicular<br> Y=3x+5
    10·2 answers
  • Guess the car<br> Hint**uncommon**
    15·2 answers
  • What is 98 x 12 / 3 = ???
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!