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3 years ago

PLS HELP ME NOW THERE DIFFERENT QUESTIONS

Mathematics

1 answer:

OlgaM077 [116]3 years ago

6 0

I think the answer is d

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Solve for x PLS HELP NOW

Zepler [3.9K]

Answer:

$x=70$

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS
Equality Properties

Step-by-step explanation:

Step 1: Define equation

$\frac{0.35}{\frac{2}{3}x } =\frac{0.45}{x-10}$

Step 2: Solve for x

Cross-multiply: $0.35(x-10)=\frac{2}{3} x \cdot 0.45$
Distribute 0.35: $0.35x - 3.5=\frac{2}{3} x \cdot 0.45$
Multiply: $0.35x - 3.5=0.3x$
Isolate x term: $-3.5=-0.05x$
Isolate x: $70=x$
Rewrite: $x=70$

Step 3: Check

Plug in x to verify it's a solution.

Substitute: $\frac{0.35}{\frac{2}{3}(70) } =\frac{0.45}{70-10}$
Multiply: $\frac{0.35}{\frac{140}{3} } =\frac{0.45}{70-10}$
Subtract: $\frac{0.35}{\frac{140}{3} } =\frac{0.45}{60}$
Evaluate: $0.0075=0.0075$

7 0

3 years ago

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Why does this system of equations have infinitely many solutions?

lapo4ka [179]

Step-by-step explanation:

I would say the one that says after eliminating a variable,the result is x=0

cause the zero can change into any number.

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3 years ago

63 is 90% of what number? using double number lines to get the answer

iren2701 [21]

Since the 90% is 63. divide it by 9. then you would get value of 7. then multiple it by 10.
which is equal to 70. so 100% is 70.

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3 years ago

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What kind of construction is it??

pochemuha

That is an angle bisector.
It divides an angle in half
hope it helps

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3 years ago

What calculation can I use to find 961 after a 24% decrease?

dsp73

Answer:

Step-by-step explanation:

i know it's rhe right answer

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2 years ago

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