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Alchen [17]
2 years ago
6

10 POINTS ALL FOR YOU IF YOU ANSWER IT

Mathematics
1 answer:
Gennadij [26K]2 years ago
3 0

Answer:

x is equal to 30

<ABC is equal to 100°

<DBC is equal to 80°

Step-by-step explanation:

3x +10 +2x +20 =180

5x = 180 - 10- 20

5x = 150, divide both sides by 5

x is equal to 30

<ABC = 3x + 10 = 3 × 30 + 10 = 100°

<DBC = 180 - <ABC = 180 - 100 = 80°

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A television weighs 50 pounds and a microwave
Ilia_Sergeevich [38]

Answer:

Step-50*t + 30*m = 1500,   (1)   (pounds)

4*t +  3*m = 138.    (2)   (cubic feet)

From (2), express 3m = 138 - 4t, and substitute it into (1). You will get

50t + 10*(138-4t) = 1500,  or

10t = 1500 - 1380  --->  10t = 1120  --->  t = 112 TVs.

From this point, find the number of microwaves on your own.

step by-step explanation:

3 0
3 years ago
Please help with 1 and 2 :)
nordsb [41]

Answer:

1. The domain for the number of fruit cups is 0 minimum and 20 maximum.

   [0 < x < 20].

2. [10 < y < 70]

Step-by-step explanation:

1. The domain is 0 to 20 because there are 20 people total who will each have a fruit cup

2. The range is $10 to $70 because the minimum price is $10 without any fruit cups and $70 when there are 20 fruit cups.

4 0
3 years ago
Can somebody help with this problem?
Anastasy [175]

Answer:

x=-5 or -5

Step-by-step explanation:

x - 4 = 2x + 1

Subtract x from both sides canceling out the x on the left, getting...

-4 = x + 1

Then subtract the 1 from both sides canceling out the 1 on the right, getting...

-5 = x

Subtracting x from 2x gets you 1x which you just write as x because there is only one x. Doing the equation from the other side will still get you the same answer and I will show you.

x - 4 = 2x + 1

-x - 4 = 1

-x = 5

x = -5

Hope this helps!

4 0
3 years ago
Which answers are equal to the expression below? Check all that apply PLEASE WILL GIVE BRAINLIEST
kramer

Answer:

B., D., E.

Step-by-step explanation:

\sqrt{9} \cdot \sqrt{100} =

= \sqrt{9 \cdot 100}      This is choice B.

= \sqrt{900}          This is choice E.

= 30              This is choice D.

5 0
3 years ago
Consider the equation below -2(5x + 8) = 14 + 6x complete the statements below with the process used to achieve steps 1-4
Ad libitum [116K]

Step-by-step explanation:

1. Distribute the -2. multiply-2 with 5x and 8. it will be -10x-16=14+6x. For me, i make small numbers negative or positive than big ones. Add 16 to both sides. it will be -10x=30+6x. Subtract 6x. -10x-6x=-16x. Divide both sides by 16. x=30/16= 1 and 14/16

6 0
3 years ago
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