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3 years ago

-3 2/3 + 2 2/5= Please help

Mathematics

1 answer:

Anton [14]3 years ago

7 0

Answer:

-19/15 or -1 and 4/15

you can turn them into improper fractions then do the butterfly method

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Please help with 6 and 7

Ilya [14]

Answer:

6. The number is $-5$

7. The two numbers are $10$ and $11$

Step-by-step explanation:

Question six can be re-worded to create the following expression:

$-2=\frac{4x+10}{5}$

Solve for x to find the number:

$-2=\frac{4x+10}{5}\\-10=4x+10\\-20=4x\\\frac{-20}{4} = x\\-5 = x$

Question seven can be solved by first listing the constraints (assuming x is smaller than y):

x and y are less than 20
$x + 1 = y$
$3x - 8 = 2y$

To get the numbers, we can create a system of linear equations. First, solve for $y$ in each expression:

$y = x+1$

$2y = 3x-8\\y = \frac{3}{2}x - 4$

Solve for $x$ :

$x+ 1 = \frac{3}{2}x - 4\\x + 5 = \frac{3}{2}x\\5 = \frac{3}{2}x - x\\5 = \frac{1}{2}x\\10 = x$

Solve for $y$ :

$y = x + 1\\y = 10 + 1\\y= 11$

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2 years ago

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Write AB−⇀− with A(−7,5) and B(−3,−7) in component form.

Sladkaya [172]

Answer:

ANSWER: (4, -12)

Step-by-step explanation:

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2 years ago

Juan is going to flip a coin 2 times. What is the fractional probability that it will be two heads

sertanlavr [38]

Answer:

The fractional probability of getting 2 heads is 1/4.

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3 years ago

Find the area of the shaded region

xxTIMURxx [149]

Answer:

25.12

Step-by-step explanation:

8π = P

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3 years ago

Can someone help with this problem

WARRIOR [948]

35+25=60
y=60

If you add the opposite side values of the triangle (not the one touching the y), you get the value of y). 35+25=y
This works because y+x= 180 and the three angles of a triangle add to 180.

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3 years ago

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