3 years ago

Twice the sum of x and y decreased by 21

1 answer:

8 0

Answer: 2((x+y)-21)

Calculation/Explanation:

Twice the sum of x and y decreased by 21 means that you must add x and y first before decreasing by 21. The last step is to double the whole equation that we just performed.

You might be interested in

Please help! Brainliest

vladimir1956 [14]

C) 84
7(6x2)

Sry if it’s wrong

6 0

3 years ago

1. Oxygen has an electronegativity of 3.5, and carbon has an electronegativity of 2.5. How is charge distributed on an oxygen at

torisob [31]

Answer:

Step-by-step explanation:

because 1 was removed from it

7 0

3 years ago

The number of students in a school's math club is ten less than twice the number of students in the art club. Let a represent th

Alborosie

Answer: 2a - 10

Step-by-step explanation:

a represents the number of students in the art club.

The number of students in a school's math club is ten less than twice the number of students in the art club.

ten less = - 10

twice the number of students in the art club = 2*a

2a - 10 = the number of students in the math club

5 0

3 years ago

Round your answer to the nearest hundredth.

kondor19780726 [428]

Answer:

000.212

Step-by-step explanation:

7 0

2 years ago

Two sides of a rectangle differ by 3.5cm.Find the dimensions of the rectangle if its perimeter is 67cm.

Margaret [11]

Answer:

Sides are x and x + 3.5 cm

Perimeter = 2(x + (x + 3.5))cm

4x +7 = 67

x = 15cm Answer

Step-by-step explanation:

HOPE THIS HELPED!

8 0

2 years ago

Read 2 more answers