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tresset_1 [31]
2 years ago
10

7.5x = 30 in the since of algebra

Mathematics
1 answer:
erma4kov [3.2K]2 years ago
5 0
Answer:x=4
7.5x=30
Divide by 7.5 on both sides
x+4
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John has x amount of dogs. Solve for x to find how many dogs john has.
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3 years ago
What is 1 6/9 +5 9/7
lisabon 2012 [21]

\longrightarrow{\green{7  \frac{20}{21}}} 

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}

1 \frac{6}{9}  + 5  \frac{9}{7}  \\   \\ =  \frac{15}{9}  +  \frac{44}{7}  \\  \\  =  \frac{15 \times 7}{9 \times 7}  +  \frac{44 \times 9}{7 \times 9}  \\  \\  =  \frac{105 + 396}{63}  \\  \\  =   \frac{501}{63}  \\  \\  =  \frac{167}{21}  \\  \\  = 7  \frac{20}{21}

\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{♡}}}}}

6 0
2 years ago
3. Determine the values of x and y for the parallelograr<br> (3x + 15)°<br> (y +30)°<br> (3x – 15)°
nataly862011 [7]

Answer:

stupid

Step-by-step explanation:

rat

6 0
3 years ago
Which number line best shows how to solve −8 − (−2)? (5 points)
aliya0001 [1]

A number line from negative 10 to 10 is shown, with numbers labelled at intervals of 2. An arrow is shown from point 0 to negative 8. Another arrow points from negative 8 to negative 6. Therefore, option C is the correct answer.

<h3>What is a number line?</h3>

A number line is a straight line with numbers placed at equal intervals. Positive numbers are placed to the right of 0 and negative numbers are placed to the left of zero.

When a number (x) is added x unit is moved to the right while if a number (x) is subtracted x unit is moved to the left.

Now, solve -8 - (-2)

= -8 + 2=-6

So, a number line from negative 10 to 10 with numbers labelled at intervals of 2. An arrow is shown from point 0 to negative 8 then since 2 is added, we move 2 units right from negative 8 to negative 6.

Therefore, option C is the correct answer.

To learn more about the number line visit:

brainly.com/question/13189025.

#SPJ1

6 0
1 year ago
X^2 + 4x + 4 = 10<br>please help!! I missed class! show steps!​
lina2011 [118]

Answer:

x = √(10) - 2, -√(10) - 2

Step-by-step explanation:

x² + 4x + 4 = 10

factor:

(x + 2)² = 10

take square root of both sides:

x + 2 = ±√(10)

split into 2 equations:

x + 2 = √(10)      x + 2 = -√(10)

solve both equations and collect solutions:

x = √(10) - 2, -√(10) - 2

3 0
3 years ago
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