2 years ago

Can someone help me please is this correct?

Mathematics

1 answer:

STatiana [176]2 years ago

3 0

Answer:

Subtraction.

Step-by-step explanation:

You Subtract 6 on both sides first and then you multiply the denominator which is 11 to the other side of the equal sign.

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Find the sum using fraction bars or a paper and pencil. Write your answer in simplest form.

vlabodo [156]

Find the LCD = 18

5/6 = 15/18
3/9 = 6/18

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3 years ago

Sylvia is twice as old as her brother. Find their ages now if in seven years her brother will be what her age was last year.

igomit [66]

Answer:

Sylvia=16

brother=8

Step-by-step explanation:

8+7=15

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3 years ago

Dorothy wants to buy a box of dirt that normally costs $45.11. It is

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Answer:

7.1

Step-by-step explanation:

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2 years ago

5c squared- d squared+3/2c - 4d...c= -1. d= -4

riadik2000 [5.3K]

For this case we have the following expression:

$5c ^ 2-d ^ 2 + \frac {3} {2} c-4d$

We must find the value of the expression when:

$c = -1\\d = -4$

Substituting we have:

$5 (-1) ^ 2 - (- 4) ^ 2 + \frac {3} {2} (- 1) -4 (-4) =\\5 (1) -16- \frac {3} {2} + 16 =\\5-16- \frac {3} {2} + 16 =\\-11- \frac {3} {2} + 16 =\\- \frac {25} {2} + 16 =\\\frac {-25 + 32} {2} =\\\frac {7} {2}$

Finally, the value of the expression is:

$\frac {7} {2}$

ANswer:

$\frac {7} {2}$

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3 years ago

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3 years ago

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