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3 years ago

Help me please!! 2. 9+ X= 17; X = 6, 8, or 26

Mathematics

2 answers:

julsineya [31]3 years ago

6 0

X=8 hope this helps

madam [21]3 years ago

5 0

Answer: X = 8

9 + X = 17; Subtract 9 from both sides
X = 8

Check: Place 8 in for X
9 + (8) = 17
17 = 17; True, so answer is right

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Which method correctly solves the equation using the multiplication property of equality and the reciprocal of One-third? One-th

Airida [17]

Answer:

Step-by-step explanation:

Given the equation $\frac{1}{3}(x+9) = -12$

Step 1;

Expand the bracket at the right hand side of the equation to have:

$\frac{1}{3}x +\frac{1}{3}(9) = -12\\\frac{1}{3}x+3=-12\\subtracting\ 3\ from\ both\ sides\\\frac{1}{3}x+3-3=-12-3\\\frac{1}{3}x=-15\\$

Taking the reciprocal of both sides:

$\frac{3}{x} = \frac{-1}{15} \\ cross\ multiplying\\-x =45\\x=-45$

4 0

3 years ago

Read 2 more answers

Which pair of numbers is relatively prime?

kondor19780726 [428]

Answer:

Step-by-step explanation:

Two numbers are relatively prime when there is no integer greater than one that that is a factor of both of them.

A: 15 and 21 both have a factor of 3.

<u>B</u>: 24 and 49 have no common factors, and therefore, are relatively prime.

C. 35 and 135 both have a factor of 5.

D: 45 and 102 both have a factor of 3.

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3 years ago

On monday maggie ran n miles, on tuesday she ran 90% of the number of miles that she ran on monday. on wednesday she ran 50% of

Andrew [12]

Step-by-step explanation:

On Monday maggie ran n miles.

On Tuesday, she she ran 90% of the number of miles that she ran on Monday i.e $\dfrac{90}{100}\times n=0.9n$ .

On Wednesday, she ran 50% of the number of miles that she ran on Tuesday i.e. $\dfrac{50}{100}\times 0.9n=0.45n$

First expression : n+0.9n = 1.9 n

Second expression : n + 0.9 n + 0.45 n = 2.35 n

Hence, this is the required solution.

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4 years ago

Divide 150 into 3 parts in the proportion of 4, 6 and 2 1/2 respectively<br><br>

Feliz [49]

Answer:

Hope this helps!!

Step-by-step explanation:

4 = 48

6 = 72

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3 years ago

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Dafna1 [17]

The answer is 2.

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3 years ago