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Fittoniya [83]
3 years ago
14

In a Triangle,2angles are 56°and 45°,then find the third angle​

Mathematics
2 answers:
stealth61 [152]3 years ago
4 0

Answer:e answer is 79

tangare [24]3 years ago
3 0

Step-by-step explanation:

to find the third angle subtract the angles from

180

=56°+45°

=99

third angle=180°-99°

=81°

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the sum of 3 consecutive integers is 42.let x be the middle of the three integers. transcribe the statement accordingly
patriot [66]
(x-1) + x + (x+1) = 42
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3 years ago
Help please , I am not sure how to do it
Tems11 [23]
Rational number, real
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4 years ago
The Wright family recently went out to dinner. They ordered two pizzas at $14.95 each, a salad at $4.35, and four drinks at $2.4
Marysya12 [62]

Answer:

B

Step-by-step explanation:

First

Get totals for food items:

Pizza $14.95 ×2=$29.90

Salad=$4.35

Drinks $2.49 ×4=$9.76

Total Bill

$29.90

$ 4.35

<u>+</u><u>$</u><u> </u><u>9.76</u>

$44.21 Food Bill

Second Step

Find Tip Amount Before Tax

Total Bill $44.21 × .15=$6.63 Tip

Third Step

Find Tax on Total Food Bill

$44.21 × .07675=$3.39

Fourth Step

Find amount left from paying bill with tax.

Total Bill including tax:

$44.21 (bill) +$3.39 tax=$47.60

Cash $ 50.00

Total Bill - $<u>47.60</u>

$ 2.40 Change left over

Fifth Step

Find amount needed to give $6.63 tip from above.

We have $2.40 we need $6.63

Subtract $6.33 -$2.40=$4.23 more money needed for tip

5 0
4 years ago
Algebra what a subject please write down all the rules when using algebra ill provide some below that I know
Andrews [41]

Step-by-step explanation:

Algebra is a topic that covers linear equations, system of equations, sequences, exponential functions, polynomials, quadratic, exponents, radicals, functions, and more. I'm going to give use algebraic formulas and not all the topics.

Like Terms Rule: If two terms that share the same variable are separated by a binary operation, we can combine them.

For example, look at

6 + 7x + 9x

We can combine 7x and 9x.

7x + ( +   9x) = 16x

Add the coeffceint and keep the variable.

16x+6

Solving Algebraic Equations:

Alot questions in Algebra asks you to isolate a variable. For example,

\frac{x}{2}  + 6 = 9

First step, is to get the x variable by itself. To do this subtract 6 by both sides. Why? Because Subtraction is a inverse operation off addition. Remeber the Golden Rule of Algebra,

<em>WHAT</em><em> </em><em>WE</em><em> </em><em>DO</em><em> </em><em>TO</em><em> </em><em>ONE</em><em> </em><em>SIDE</em><em>. </em><em>WE</em><em> </em><em>DO</em><em> </em><em>TO</em><em> </em><em>THE</em><em> </em><em>OTHER</em><em>.</em>

<em>\frac{x}{2 }  = 3</em>

<em>Now</em><em>,</em><em> </em>we multiply both sides by 2 because multiplying is the inverse operation of division and vice versa.

x = 6

If we plug this in, it is indeed true.

\frac{6}{2}  + 6 =

3 + 6 = 9

Some other rules are

If we multiply a term by a one term, we only affect the term that is being multiplied, for example

2x \times 3

2 and 3 are both real numbers so we just multiply 2 and 3. and put x behind the answer.

2 \times 3 = 6(x)

2x \times 3 = 6x

When we multiply 2 variables, we put the variable near each other. For example,

x \times y = xy

When we add term, we add the coeffcient parts

y + y = 1y + 1y = 2y

Know that

y = 1y

When we multiply same term variables, we get

x \times x =  {x}^{2}

There is more formulas for Algebra. But these are the basicis.

8 0
3 years ago
Alfred is practicing typing. The first time he tested himself, he could type 30 words per minute. After practicing for a week, h
8_murik_8 [283]
It would be 42 ,because it is increasing by 3 on the third week=39 fourth week=42.
4 0
3 years ago
Read 2 more answers
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