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
lord [1]
3 years ago
12

Please help I need 7-9 please

Mathematics
1 answer:
DanielleElmas [232]3 years ago
6 0

Answer:

-2 hope this helps

Step-by-step explanation:

bc u subtrscted them

You might be interested in
Dirrens' oven only measures in degree Fahrenheit (°f).show that 200°C would be 392°F.
Ainat [17]

I think you shouldn't memorize any formula to solve it. But you should know that on the fahrenheit thermometer freezing point is 32 and the boiling point is 212. And in celcius, it is 0 and 100. So we can make the inference that changing 100 units in celcius corresponds to a change of 180 units in fahrenheit. Thus, we should ask that if celcius increase from 0 to 200, what would happen to fahrenheit.

Basic math:

While celcius increase 100, fahrenheit increase 180,

While celcius increase 200, fahreinheit increase 360.

And you shouldn't forget that fahrenheit's freezing point is 32.

32+increase(360)=392

4 0
2 years ago
An airplane flew a distance of 650 km at an average speed of 300 km/h. How much time did the flight take
galina1969 [7]
650/300 = 2(1/6)
(1/6) of 1 hour = 10mins
The flight took 2hr and 10mins.
6 0
3 years ago
Will give brainlliest :>
Goshia [24]

Answer:

48 degrees

Step-by-step explanation:

<u>1) Solve for x</u>

Complementary angles add up to 90 degrees. Therefore, m<A + m<B is equal to 90:

A+B=90\\(2x+20)+(3x)=90

Open up the parentheses

2x+20+3x=90\\5x+20=90

Subtract 20 from both sides

5x+20-20=90-20\\5x=70

Divide both sides by 5

\frac{5x}{5} =\frac{70}{5} \\x=14

Therefore, x is equal to 14.

<u>2) Determine angle A</u>

A=2x+20

Substitute x with 14

A=2(14)+20\\A=28+20\\A=48

Therefore, the measure of angle A in degrees is 48 degrees.

I hope this helps!

3 0
2 years ago
The school shop ordered 20 boxes of snacks and there were 89 snacks in each box. If 15 snacks were sold from each box, how many
Bogdan [553]

Answer:

1,480

Step-by-step explanation:

89x20=1,780 total snacks

20x15=300 snacks sold

1,780-300=1,480 snacks left

7 0
3 years ago
Two hikers are 77 miles apart and walking toward each other. They meet in 10 hours. Find the rate of each hiker if one hiker wal
disa [49]

Answer:The rate of the slower hiker is 2.2 mph and the rate of the faster hiker is 5.5 mph

Explanation:

One hiker walks 3.3 mph faster than the other.

Suppose, the speed of the slower hiker is  mph.

So, the speed of the faster hiker will be:  

Both hikers are walking toward each other and meet in 10 hours.

We know that,  

So, the distance walked by the slower hiker in 10 hours  miles and the distance walked by the faster hiker in 10 hours

miles.

Given that, they were 77 miles apart in the beginning. So the equation will be

3 0
2 years ago
Other questions:
  • If 1 is added to the numerator and to the denominator of a fraction,the value obtained is 4/5.If 5 is subtracted from it's numer
    14·1 answer
  • F(x) = 3х+ 2<br> What is f(5)?<br> ОА. 15<br> Ов. 10<br> Ос. 21<br> OD. 17
    10·1 answer
  • Simplify in standard form <br> 8+5i/5+2i
    12·1 answer
  • What is the Slope of 7x+4y=20
    12·1 answer
  • Arrange the numbers in increasing order.
    5·1 answer
  • Easy Question, Easy Points<br><br><br>Topic: Volume<br><br><br>Focus on question 12
    8·2 answers
  • Rob borrows $15.00 from his father, and then he borrows $3.00 more. Drag numbers to write an equation using negative integers to
    14·2 answers
  • What is 152,909 rounded to the nearest hundred thousands
    7·2 answers
  • Percent of change<br><br>original:1.5<br>new:2.5<br><br>please show work​
    8·1 answer
  • Parallel lines s and t are cut by a transversal r.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!