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3 years ago

1

Mathematics

1 answer:

Mariana [72]3 years ago

8 0

Answer:

x = 6

Step-by-step explanation:

∠ DBC + ∠ ABC = ∠ ABD , substitute values

5x - 4 + 8x - 3 = 79

13x + 1 = 79 ( subtract 1 from both sides )

13x = 78 ( divide both sides by 13 )

x = 6

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Janelle has $75. She buys jeans that are discounted 30% and then uses an in-store coupon for $10 off the discounted price. After

AnnyKZ [126]

ANSWER:

The jean were 31.08 dollars

Step-by-step explanation:

75 - 10 = 65

3.26 - 65 = 61.74

61.74 - 17.34 = 44.40

30% of 44.40

= 31.08 dollars

3 0

3 years ago

The sum of two numbers is 90. Their difference is 18. Find the numbers.

Naddik [55]

Answer:

36 & 54

Step-by-step explanation:

By Question :-

Sum of numbers = 90 .
Difference of numbers = 18 .

Let :-

First Number be x .
Second number be y .

According to 1st condition :-

$: \implies$ x + y = 90

According to 2nd condition :-

$: \implies$ x - y = 18

Adding the equations :-

$: \implies$ 2x = 18 + 90

$: \implies$ 2x = 108

$: \implies$ x = 54

Therefore :-

$: \implies$ First number = 54

$: \implies$ Second number = 36

5 0

2 years ago

Read 2 more answers

Help me please?!?!? Giving brainly!

Igoryamba

Answer:

Multiply input by 4.

Step-by-step explanation:

So, all we have to do is find the difference between the input/output.

So for the first one.

4y=1x

Divde both sides:

1y=1/4x

Next we have 16y=4x

Divide both sides:

1y=1/4x

Ok, so we now know that y is 1/4x

Or in otherwords, 4x is 1y.

Remember x is input, and y is output.

So we can think of this as the input times 4 equals the output.

This seems to be the second answer.

Hope this helps!

6 0

2 years ago

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What're all the numbers divisible by 3 and 9?

KIM [24]

3 and 1 are divisible by 3. 3, 1, and 9 are divisible by 9

7 0

3 years ago

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Select the correct answer.

Oduvanchick [21]

Answer:

I got B too so I sure could be right answer but if it's not then I so sorry. B. 6

8 0

2 years ago

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