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
lisov135 [29]
2 years ago
15

Solve the equation. 40 = x - 20 a-60 b60 c20 d -20

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

40 = x - 20

move -20 to the other side

sign changes from -20 to +20

40+20= x-20+20

40+20=x

60=x

Answer:

b 60

You might be interested in
Can someone please help me help me pls
lord [1]
This is easy onystly I think you should do it your self but the answer is number b
8 0
3 years ago
A credit card company uses these rules to calculate the minimum amount owed: For a bill of less than $100, the entire amount is
Mashutka [201]

Answer:

B. graph B

Step-by-step explanation:

The graphs of A,B,C and D are attached below.

Let x represent the credit amount  and y represent the minimum amount due.

For a bill of less than $100, the entire amount is due. That is for 0 ≤ x < $100, y = x

For a bill of at least $100 but less than $500, the minimum due is $100. That is for $100 ≤ x < $500, y = 100

For a bill of at least $500 but less than $1,000, the minimum due is $300. That is for $500 ≤ x < $1000, y = $300

For a bill of $1,000 or more, the minimum due is $500. But the credit limit is $2000. That is For $1000 ≤ x < $2000, y = $500

The graph that shows the minimum amount due for a credit amount of x  is graph B

3 0
3 years ago
A sprinter who weighs 706 N runs the first 5.5 m of a race in 1.6 s, starting from rest and accelerating uniformly. What are the
zhenek [66]

Answer:

(a) Speed = 6.875 m/s

(b) Kinetic Energy = 1.70 kJ

(c) Average power =  1.06 kW

Step-by-step explanation:

Given:

d = 5.5 m

t = 1.6 s

W = 706 N

Part (a)

Using the equation of motion with the assumption of zero initial speed:

d = \frac{1}{2} ({v-0})t

5.5= \frac{1}{2} (1.6v)

The speed of the sprinter then become:

v = 6.875 m/s

Part (b)

Convert the weight of the sprinter to mass:

m = \frac{w}{g}

m = \frac{706}{9.8}

m = 72 kg

KE (Kinetic Energy) can then be calculated as:

KE = \frac{1}{2} mv^{2}

KE = \frac{1}{2} (72)(6.875)^{2}

KE = 1701.56 J = 1.70 kJ

Part (c)

The change of the kinetic energy is equivalent to the work done by the sprinter. The average power P is the rate of the work done and can be calculated as

P = \frac{KE}{t} \\\

P = \frac{1701.56}{1.6}

P = 1063.48 W = 1.06 kW

5 0
3 years ago
The length of a rectangle is 11 inches longer than it's width, the perimeter is 86 inches write an equation and solve to find le
olga_2 [115]
I have no clue soooo sorry

6 0
3 years ago
A hospital director is told that 54% of the emergency room visitors are insured. The director wants to test the claim that the p
Akimi4 [234]

Answer:

Z -0.879173965

Step-by-step explanation:

Z -0.879173965

ρ  0.5

π 0.54

n 120

6 0
3 years ago
Other questions:
  • Scores on the GRE (Graduate Record Examination) are normally distributed with a mean of 513 and a standard deviation of 82. Use
    8·1 answer
  • Help please <br> explain step by step
    7·1 answer
  • Mary invested $200 for 3 years at 5% per annum. John invested $300 at the same rate. If they both received the same amount of in
    15·1 answer
  • The concentration C (in mg/cc) of a drug in a patient's bloodstream is related to the time t (in hours) after injection in such
    5·1 answer
  • What is the value of 6n - 2 when n = 3?
    8·1 answer
  • Does anyone know what the answer?????
    13·1 answer
  • Read carefully and choose the name of the student who made the correct statement.
    8·2 answers
  • If AP 10 - 12. what is the perimeter of quadrilateral TAEO (a) 56 (b)64 (c)72 (d)76​
    12·1 answer
  • (1 point) A parcel delivery service will deliver a package only if the length plus the girth (distance around, taken perpendicul
    15·1 answer
  • What is the value of x?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!