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lbvjy [14]
3 years ago
13

PLEASE IS FOR MY HOMEWORK

Mathematics
1 answer:
Neporo4naja [7]3 years ago
6 0

a. 7x + 52 (2x + 5x) (40 + 12)

b. 13x + 142 (2x+5x+6x) (40 + 12 - 10)

c. 246 (16 + 40 + 40 + 100 + 12 + 48 - 10)

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7(3b-1)=2b-26 please help and give me step by step ☺️​
Colt1911 [192]

Answer:

b = -1

Step-by-step explanation:

7(3b-1): 7 goes into the numbers by multiplying. This will give you 21b-7.

So now the equation should be like 21b-7=2b-26.

-7 and 2b swap places, making 21b-2b=7-26. It will give you 19b= -19.

Finally divide the two numbers (-19 / 19) and the solution will be b= -1.

If I didn't make a clear answer or a good explanation, please comment. I sometimes mess up my steps, and this is my first time using this.

5 0
3 years ago
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What value of x makes the equation 6x + 12 = 42 true?
Naddika [18.5K]

Answer:X=5

Step-by-step explanation:

6x + 12 = 42

-12. -12

6x=30

6x. 6

X=5

Check

6(5)+12=42

30+12

42

8 0
3 years ago
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Handles-n-Things is a small enterprise company buying new carpet for their office room. The room is 15 ft. wide and 24 ft. long.
elena55 [62]
You find this by finding the number of yards in 15 feet (15÷3) and that number of yards in 24 feet (24÷3) and multiplying them together. 5X8=40sq yards.
8 0
3 years ago
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What is the area of this trapezoid?
navik [9.2K]

Answer:

A = 32

Step-by-step explanation:

A = ½ (a + b) h

A = ½ (3 + 10) 4

A = (3+5)4

A = (8)4

A = 32

8 0
2 years ago
BD bisects ZABC. Solve for x and find mABC.<br> m/ABD = 11x - 10, m/CBD = 8x + 2
Tamiku [17]

The value of x is 4 and the value of ∠ABC is 68°.

To solve this problem we first have to understand the concept of an angle bisector. Angle bisector is a straight line passes through the vertex of an angle dividing the angle in two equal angles.

According to the condition BD bisects ∠ABC

Therefore the two angles formed by the angle bisector are ∠ABD and ∠CBD.

The angle value of these two angles are equal.

Given:

m∠ABD=11x-10

m∠CBD=8x+2

Therefore from the above condition:

m∠ABD=m∠CBD

Substituting the values we get:

11x-10=8x+2

Solving the linear equation to find the value of x.

or,11x-10=8x+2\\or,11x-8x=2+10\\or,3x=12\\or,x=4

Now let us find the value of ∠ABC

m∠ABC=m∠ABD+m∠CBD

or,∠ABC=11x-10+8x+2

or,∠ABC=19x-8

Substituting the value x=4 in the equation we get:

m∠ABC=19×4-8

or,m∠ABC=68°

Therefore we can conclude that the value of xis 4 and the value of ∠ABC is 68°.

To learn more about angle bisectors:

brainly.com/question/12896755

#SPJ9

7 0
1 year ago
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