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
Sophie [7]
2 years ago
14

I'm desperate, this is my last assignment to do for now​

Mathematics
1 answer:
zmey [24]2 years ago
4 0

Answer:

  • Given Below.
  • [ done below, side changing which changed sign + to - and - to + ]

Step-by-step explanation:

6. x + 21 = 56

→ x = 56 – 21

→ x = 35

7. n – 13 = 8

→ n = 8 + 13

→ n = 21

8. w – 7 =41

→ w = 41 + 7

→ w = 48

9. b + 22 = 89

→ b = 89 – 22

→ b = 67

10. z – 53 = 26

→ z = 26 + 53

→ z = 79

You might be interested in
−10=2y<br><br> Hello<br><br> Help <br><br> Me
marin [14]
The answer is -5

Explanation: Divide 2 to get rid of the top number. It looks like this

-10. 2y
___. ___

2. 2


What this does is remove the two from the Y and sets it by itself. Then you divide the -10, and the answer is -5

7 0
3 years ago
What is 320 times 10^2 equal
SIZIF [17.4K]

Answer:

Step-by-step explanation:

10^2=100

320×100=32000

8 0
3 years ago
Read 2 more answers
Please help this question.
sergejj [24]

Answer:

a). 59.049°C

b). 2.1179 seconds

Step-by-step explanation:

Expression representing the final temperature after decrease in temperature of the metal from 100°C to T°C is,

T = 100(0.9)^{x}

where x = duration of cooling

a). Temperature when x = 5 seconds

T = 100(0.9)⁵

  = 59.049

  ≈ 59.049°C

b). If the temperature of the metal decreases from 100°C to 80°C

Which means for T = 80°C we have to calculate the duration of cooling 'x' seconds

80 = 100(0.9)^{x}

0.8 = (0.9)^{x}

By taking log on both the sides

log(0.8) =log[(0.9)^{x}]

-0.09691 = x[log(0.9)]

-0.09691 = -0.045757x

x = \frac{0.09691}{0.045757}

x = 2.1179

x ≈ 2.1179 seconds

3 0
3 years ago
Write an equation for the line of fit for this data in the form y=mx+b where x is latitude and y is temperature.
notka56 [123]

Answer:

y = -x + 115

Step-by-step explanation:

Given

See attachment for graph

Required

The equation of best fit

First, we pick two corresponding points on the graph,

We have:

(x_1,y_1) =(55,60)

(x_2,y_2) =(45,70)

Calculate slope (m)

m = \frac{y_2 -y_1}{x_2 - x_1}

This gives:

m = \frac{70 - 60}{45 - 55}

m = \frac{10}{-10}

m = -1

The equation is the calculated using:

y = m(x - x_1) + y_1

This gives

y = -1(x - 55) + 60

Open bracket

y = -x + 55 + 60

y = -x + 115

5 0
3 years ago
Two cars start from the same point and move in a straight line, one east at a speed of 60 km per hour and the other west at a sp
Tpy6a [65]

Answer:

I m not sure but i tried east 46200 west 61600

6 0
3 years ago
Other questions:
  • Y=4x 8x , solve for x
    8·2 answers
  • Can you please help me with 3b.
    8·1 answer
  • ASAP! GIVING BRAINLIEST! Please read the question THEN answer CORRECTLY! NO guessing. I say no guessing because people usually g
    6·1 answer
  • You have 65 movies on your Netflix queue. In how many ways can you order them?
    13·1 answer
  • Write the equation in standard form.<br><br> 3x−9=7y
    6·1 answer
  • A drone costs $300 plus $25 for each set of extra propellers write a independent variable​
    7·1 answer
  • P+6/6+m*n; use m = 4, n = - 1, and p = -6 help plz i dont want to fail
    11·1 answer
  • What is the circumference of a circle with a diameter of 10 feet? Use 3.14 as π
    9·1 answer
  • A spinner has 10 numbered sections. The arrow on the spinner was spun 30 times, and the results are recorded in the table. Based
    5·2 answers
  • The first blanks options are -2 , -1/2 , 2 , 1/2
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!