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miss Akunina [59]
3 years ago
14

A sign painter paints individual numerals for a row of 50 houses. The houses are numbered with consecutive integers from 1 to 50

. How many 9s are painted?
Mathematics
1 answer:
Iteru [2.4K]3 years ago
3 0
Answer: 5

List out the numbers from 1 to 50. Then go through that list and circle any numbers that have 9 in them. Those numbers are:
9, 19, 29, 39, 49
So there are 5 houses with 9s painted
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3 years ago
Solve the following equation for x: 2x – 3y = 6.
Ksivusya [100]

Answer:

x=3/2y+3

Step-by-step explanation:

Let's solve for x.

2x−3y=6

Step 1: Add 3y to both sides.

2x−3y+3y=6+3y

2x=3y+6

Step 2: Divide both sides by 2.

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6 0
3 years ago
The algebra tiles represent the perfect square trinomial x2 10x c. what is the value of c? c =
devlian [24]

The value of c for which the considered trinomial becomes perfect square trinomial is: 20 or -20

<h3>What are perfect squares trinomials?</h3>

They are those expressions which are found by squaring binomial expressions.

Since the given trinomials are with degree 2, thus, if they are perfect square, the binomial which was used to make them must be linear.

Let the binomial term was ax + b(a linear expression is always writable in this form where a and b are constants and m is a variable), then we will obtain:

(ax + b)^2 = a^2x^2 + b^2 + 2abx

Comparing this expression with the expression we're provided with:

x^2 + 10x + c

we see that:

a^2 = 1 \implies a = \pm 1\\b^2 = 10\\b = \pm 10\\2ab = c\\\pm2(10)1 = c\\c = \pm 20\\

Thus, the value of c for which the considered trinomial becomes perfect square trinomial is: 20 or -20

Learn more about perfect square trinomials here:

brainly.com/question/88561

6 0
2 years ago
The formula to convert Fahrenheit to Celsius is C - 5 (F - 32). Convert 30°C to
bulgar [2K]

Answer:

D. *6F

Step-by-step explanation:

C=(F-32)*5/9

30=(F-32)*5/9

F = (30*9)/5+32

F = 86

6 0
3 years ago
Which expression is equivalent to 6 - (-2)?<br> -6 + 2<br> -6 - 2<br> 6+2<br> 6-2
Sveta_85 [38]

Answer:

6+2

Step-by-step explanation:

6 - ( - 2)

Distribute the negative in.

<u>Negative</u><u> </u><u>Multiply</u><u> </u><u>Negative</u><u> </u><u>must</u><u> </u><u>equal</u><u> </u><u>Positive</u><u>.</u>

6 + 2

7 0
3 years ago
Read 2 more answers
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