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Tasya [4]
3 years ago
15

Which of these is a simplified form of the equation 7z + 2 = 8 + 2z + 1z?

Mathematics
2 answers:
WINSTONCH [101]3 years ago
4 0
Simplify it and compare

(7-2-1) z = 8 - 2

4z = 6

so the 3rd
Maru [420]3 years ago
3 0

Answer : The simplified form of the equation is, 4z = 6

Step-by-step explanation:

As we are given the expression of equation. Now we have to simplified this expression.

The given expression is:

7z + 2 = 8 + 2z + 1z

Taking like terms together.

7z - 2z - 1z = 8 - 2

By solving the expression, we get:

4z = 6

Hence, the simplified form of the equation is, 4z = 6

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There are a lot of things that are equivalent to 16/81.

16/81 = 0.197530864

Or we can keep multiplying 2 to the numerator and denominator:

16/81 = 32/162 = 64/324 = 128/648
4 0
3 years ago
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The angles in a triangle are in the ratio 1:2:3. Show that this triangle is a right-angled triangle. The hypotenuse of the trian
natita [175]

Answer:

see explanation

Step-by-step explanation:

(a)

Sum the parts of the ratio , 1 + 2 + 3 = 6 parts

Divide sum of angles in a triangle by 6 to find the value of one part of the ratio.

180° ÷ 6 = 30° ← value of 1 part of the ratio

2 parts = 2 × 30° = 60°

3 parts = 3 × 30° = 90°

Since there is an angle of 90° then the triangle is right.

(b)

The shortest side is the side opposite the smallest angle of 30°

Using the sine ratio and the exact value

sin30° = \frac{1}{2} , then

sin30° = \frac{opp}{hyp} = \frac{opp}{19} = \frac{1}{2} ( cross- multiply )

2 opp = 19 ( divide both sides by 2 )

opp = 9,5

Shortest side in the triangle is 9.5 cm

6 0
3 years ago
24/10 as a decimal on a math paper
11Alexandr11 [23.1K]

Answer:

2.40

Step-by-step explanation:

7 0
3 years ago
The selling price of an item is $600. After 6 months of not selling, it is marked down by 30% . After another 6 months of not se
Bingel [31]

The sale price after both markdowns will be $336

<em><u>Explanation</u></em>

The selling price of an item is $600. After 6 months of not selling, it is marked down by 30%

So, the marked down amount after 6 months =\$ 600*0.30= \$180

and the selling price after first 6 months will be: \$600-\$180=\$420

After another 6 months of not selling , it is further marked down by 20%. So, the marked down amount now = \$420*0.20=\$84

Thus, the final selling price after all markdowns =\$420-\$84=\$336

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3 years ago
What is 7/11 equivalent to
irina1246 [14]

Answer:308? Good luck

Step-by-step explanation:

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