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3 years ago

Please. help me solve. this !!!!! very hard. , explain. please

Mathematics

1 answer:

umka2103 [35]3 years ago

6 0

102
the angles are alternate so they add up to 180
180-78=102

hope this helps :)
if you need me to explain more just let me know :)

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2/5÷4 CAN SOMEONE HELP ME PLSSSSS

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3/20

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Which gives 28 + 24 as a product of the GCF and a sum?

VashaNatasha [74]

Answer:

b. 4 (7 + 6)

Step-by-step explanation:

Finding the GCF between 28 and 24:

We keep dividing while both numbers can be divided by the same factor. So

28 - 24|2

14 - 12|2

7 - 6

There is no number for which 7 and 6 are both divisible by, so the GCF between 28 and 24 is 4.

Simplifying in function of the GCF:

Now, we put 4 in evidence, and divide the rest of the expression by 4. So

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3 years ago

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Answer: I believe it's A.

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3 years ago

1. What is the solution to the inequality?

Oksanka [162]

we are given

$-\frac{2}{3} (2x-\frac{1}{2}) \leq\frac{1}{5}x-1$

Since, we have to solve this inequality

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step-1:

Multiply both sides by 3/2

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$-(2x-\frac{1}{2})\leq\frac{3}{2}\times\frac{1}{5}x-\frac{3}{2}\times 1$

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step-2:

Distribute negative sign

$-2x+\frac{1}{2} \leq\frac{3}{10}x-\frac{3}{2}$

step-3:

Subtract both sides by 1/2

$-2x+\frac{1}{2}-\frac{1}{2} \leq\frac{3}{10}x-\frac{3}{2}-\frac{1}{2}$

$-2x \leq\frac{3}{10}x-2$

step-4:

Subtract both sides by (3/10)x

$-2x-\frac{3}{10}x \leq\frac{3}{10}x-2-\frac{3}{10}x$

$-2x-\frac{3}{10}x \leq-2$

$-\frac{23}{10}x \leq-2$

step-5:

Multiply by sides by -10/23

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now, we can simplify it

$x \geq\frac{20}{23}$

now, we can write in interval notation as

$[\frac{20}{23},\:\infty \:)$ ................Answer

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3 years ago

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Answer:

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Step-by-step explanation:

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