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icang [17]
3 years ago
8

How do you solve 0.3r = 2.1 I know the answer I just need to show my work

Mathematics
2 answers:
Afina-wow [57]3 years ago
8 0
0.3r=2.
r=2.1 divided by0.3
r=7
KatRina [158]3 years ago
5 0

Answer:

7

Step-by-step explanation:

0.3r = 2.1

r = 2.1 ÷ 0.3

r = 7

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Help me solve this with the steps please :/
Dima020 [189]

Answer:

Option (2)

Step-by-step explanation:

By applying tangent rule in the given right triangle,

tan(42°) = \frac{\text{Opposite side}}{\text{Adjacent side}}

tan(42°) = \frac{6}{\text{Width}}

Width = \frac{6}{\text{tan}(42)}

Width = 6.67

Therefore, width of the given triangle is 6.67 units.

Option (2) is the correct option.

3 0
3 years ago
The sum of a two digit number is 18. If the digits are reversed, the number remains the same. Find the number.
Yanka [14]
Answer: 99

Explanation: 9+9 = 18
and when you switch the order of the digits, it is still 99.

Hope that helps ;)

4 0
3 years ago
To make cranberry jam, you need 12 cups of sugar for every 16 cups of cranberries. Find the amount of sugar needed for 4 cups of
Yuri [45]
ANSWER: 3 cups of sugar
3 0
3 years ago
Read 2 more answers
Which equation is true given w=7
DENIUS [597]
Where is the equation?
6 0
3 years ago
Help.....................
eduard

Answer:

Answers in Explanation

Step-by-step explanation:

First Question:

\sqrt{100} + [18 ÷ 3 x 4 - 15] - (60 - 7^2 - 1)

\sqrt{100} + [24 - 15]  - (60 - 49 - 1)

\sqrt{100} + 9 - 10

10 + 9 - 10

<u>Answer = 9</u>

Second Question:

5x + 2x = 7x

5x^2 + 3x^2 = 8x^2

2x + 3x - x = 4x

2x + 3y + x + y = 3x + 4y

9x - 6x = 3x

-7y + 3x + 4x + 3y = 7x - 4y

-7x^2 + 2x^2 + 9x^2 = 8x^2

(3x^2 + 5x + 4) - (-1 + x^2) = 2x^2 + 5x + 5

(3 + 2x - x^2) + (x^2 + 8x + 5) = 10x + 8

(3x - 4) - (5x + 2) = -2x - 6

(2x^2 + 5x + 3) - (x^2 - 2x + 3) = x^2 + 7x

(3x^2 + 2x - 5) - (2x^2 - x - 4) = x^2 + 3x - 1

Third Question:

17x + 2y

(5x + 12y) + (3x + y) = 8x + 13y

17x - 8x = 9x

2y - 13y = -11y

Answer: 9x - 11y

7 0
3 years ago
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