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
kaheart [24]
3 years ago
9

PLEASE HELP!!!

Mathematics
2 answers:
AfilCa [17]3 years ago
7 0
The answers must be B
Ivenika [448]3 years ago
5 0

Answer:

B

Step-by-step explanation:

(Standard form is automatically in integers)

Multiply by 3 to take out the fraction

3y=2x+21

-2x -2x

-2x+3y=21

Standard form means Ax+By=C with positive A (usually--some people allow A to be negative).

Multiply by (-1)

2x-3y=-21

(Technically, that's the more correct answer, but since you don't have that choices, it's just the previous one.)

You might be interested in
Evaluate the expression for y = 3 and z = 3.5.<br><br><br> (2z + 7) ÷ y
nirvana33 [79]

Answer:

4 2/3 or 14/3

Step-by-step explanation:

(2z + 7) / y

2(3.5) = 7

(7 + 7) / 3

14 / 3

Hope this helped!

8 0
3 years ago
Read 2 more answers
The Drawing of a building, shown below, has a scale of 1 inch to 30 feet. What is the Actual height, in feet, of a building?
tatyana61 [14]
Well what were given:
1 inch = 30 feet

The drawing of the building of this problem has the height of 1.25 inches and base of 0.75 inches.

Actual height: 
1.25 inches * 30 feet/inch = 37.50 feet

Actual base:
0.75 inches * 30 feet/inch = 22.50 feet


So in this problem the answer would be "A" 22.50 Aka 22.5 For the building. Hope this helps you! (:
7 0
3 years ago
Let P(t) be the performance level of someone learning a skill as a function of the training time t. The derivative dP/dt represe
irinina [24]
So in your question where the P(t) is the value of the performance level of someone learning skill as a function of the training time T. The ask is to estimate the maximum number of units per minute to each worker is capable of processing and the answer is david 15.125
5 0
3 years ago
Write an equation in slope-intercept form of the line shown in the graph below.
Phantasy [73]
Your answer is B. y=-4x+2
6 0
3 years ago
the height of a house having three rooms of the dimensional 9 feet into 12 feet 14 feet into 16 feet and 12 feet into 14 feet re
Semmy [17]

Answer:

Amount required = 2,217,600

Step-by-step explanation:

Dimensions of the rooms are as follows;

Room 1; 9 feet × 12 feet

Room 2; 14 ft × 16 ft

Room 3; 12 ft × 14 ft

Perimeter of rooms;

P1 = 2(9 + 12) = 42 ft

P2 = 2(14 + 16) = 60 ft

P3 = 2(12 + 14) = 52 ft

Total perimeter; P = 42 + 60 + 52 = 154 ft

Height is 90 ft.

Thus, total area is;

A = 154 × 90

A = 13860 ft²

Rate of painting is 160 per Sq.ft.

Thus amount to paint entire area = 160 × 13860 = 2217600

4 0
3 years ago
Other questions:
  • PLEASE HELP ME ON THIS
    10·2 answers
  • Create a set of data that contains 11 test scores and satisfies each condition below:
    13·2 answers
  • On your own paper, solve the system of equations using elimination and identify the solution. Always list your answer alphabetic
    10·1 answer
  • marco is 6 feet 3 inches tall. There are 2.54 centimeters in 1 inch. What is marcos height in centimeters.
    10·2 answers
  • Write the relation as a set of ordered pairs.
    6·1 answer
  • A successful basketball player has a height of 6 feet 11 ​inches, or 211 cm. Based on statistics from a data​ set, his height co
    7·1 answer
  • I need to pass my quiz but i dont know this one .
    15·1 answer
  • Case study
    11·1 answer
  • Can someone please help on this question
    12·1 answer
  • The model car is 3 inches long. On the box, it says the scale of the model is 1/42. What is the length of the actual car in feet
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!