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3 years ago

3. What value of x makes the equation below true? 5x+4 =9x-12

Mathematics

1 answer:

Hoochie [10]3 years ago

5 0

Step-by-step explanation:

Get all the x's to one side and all the non x's to the other. we could do 5x-9x = -12-4.

We get -4x = -16. Then, divide by -4. Dividing two negatives gets a positive. So, -16/-4 = 4

the answer is 4

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3 attempts remaining.

Savatey [412]

Answer:

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Step-by-step explanation:

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2 years ago

Kayla went shopping for a new pair of sneakers. The listed price of the pair of sneakers was $20, but the price with tax came to

Nina [5.8K]

Hello!

$\large\boxed{9 \%}$

To find the percent tax, use the equation:

$\text{ \% tax} = \frac{\text{ price after - initial price}}{\text{initial price}}$

Substitute in the given values:

$\text{ \% tax} = \frac{\text{ 21.80 - 20}}{\text{20}} \\\\\text{ \% tax} = \frac{1.80}{20} = 0.09$

Multiply by 100 to find the percent tax:

$0.09 * 100 = 9\%$

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3 years ago

Nancy's garden has the dimensions shown 4 1/2 yard<br><br> 3 3/4 yd . She need find the area

Marina86 [1]

Answer:

The area of Nancy's garden is $16\frac{7}{8}\ yd^{2}$

Step-by-step explanation:

I assume that the Nancy's garden is a rectangle shape

To find the area first convert mixed number to an improper fraction

$4\frac{1}{2}\ yd=\frac{4*2+1}{2}=\frac{9}{2}\ yd$

$3\frac{3}{4}\ yd=\frac{3*4+3}{4}=\frac{15}{4}\ yd$

Therefore

The area is equal to

$A=\frac{9}{2}*\frac{15}{4}=\frac{135}{8}\ yd^{2}$

convert to mixed number

$\frac{135}{8}\ yd^{2=\frac{128}{8}+\frac{7}{8}=16\frac{7}{8}\ yd^{2}$

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3 years ago

True or false. - 0.25 = - 1/4

Katena32 [7]

Answer:

true

Step-by-step explanation:

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3 years ago

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NikAS [45]

Answer:

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Step-by-step explanation:

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2 years ago