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skad [1K]
3 years ago
11

(30)(-30) ANSWER QUICK IM DOING A WORKSHEET IN CLASS

Mathematics
1 answer:
SashulF [63]3 years ago
7 0

Answer:

-900

Step-by-step explanation:

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Nothing. Finish my AP calc bc test giving some points out
ZanzabumX [31]

Answer: thx

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
the sum of three numbers is twenty. the second number is four times the first and the sum of the first and third is eight. what
8090 [49]
Let's call the three numbers x, y, and z. 


The numbers are 3, 12, and 5.
x + y + z = 20
y = 4x
x + z = 8
We can rewrite the first equation because y is 4x, so 
x + 4x + z = 20
5x + z = 20
And now we can use simultaneous equation rules to solve

5x + z = 20
x + z = 8

5x + z = 20
5x + 5z = 40
(subtract)
-4z + -20
÷ -4
z = 5

x + z = 8
x + 5 = 8
x = 3

y = 4x
y = 4 × 3
y = 12

I hope this helps!
4 0
3 years ago
Please help me I need it done by towmorrow
musickatia [10]

Answer:

1. 12 inches are in 1 foot, 48 inches of ribbon divided by 12 is 4 feet of ribbon.

2. Since there are 12 inches in 1 foot you multiply by 3 to 12 inches for 36 inches of ribbon.

3. When you're finding inches you need to divide but when you're finding feet you need to multiply.

4. His library card is 80 millimeters and since there are 10 millimeters in 1 centimeter you divide 80 by 10 to get 8 centimeters

5. His key chain is 35 millimeters long.

6. 3 quarts is bigger than 5 pints by 2 cups.

Picture contains the work you should show for questions 5 and 6.

3 0
3 years ago
Help geom !! Transformation!
elixir [45]

Answer:

B

Step-by-step explanation:

Rotating 120

4 0
3 years ago
What is the square root of -1?
Minchanka [31]
The square root of -1 “i”
5 0
3 years ago
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