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Stella [2.4K]
3 years ago
11

7(n+2)=189 Bar model

Mathematics
1 answer:
emmasim [6.3K]3 years ago
5 0

Answer:25

Step-by-step explanation:

First u divide 189 by 7

Than u minus that by 2 and u got ur answer

You might be interested in
Simplify negative 2 and 1 over 9 – negative 4 and 1 over 3.
Ugo [173]

Answer:

The correct answer is

2\frac{2}{9}

Step-by-step explanation:

Method 1

We want to simplify,

-2\frac{1}{9} -(-4\frac{1}{3})


The double negatives becomes positive,


=-2\frac{1}{9} +4\frac{1}{3}


We now add the whole number parts and the fractions separately


=-2+4-\frac{1}{9} +\frac{1}{3}


This will give us,

=2-\frac{1}{9} +\frac{1}{3}


The least common denominator for the fractional parts is 9.

=2+\frac{-1+3\times1}{9}


=2+\frac{-1+3}{9}


=2+\frac{2}{9}


=2\frac{2}{9}


Method 2

We want to simplify,

-2\frac{1}{9} -(-4\frac{1}{3})


The double negatives becomes positive,


=-2\frac{1}{9} +4\frac{1}{3}


We first convert the mixed numbers to improper fractions to obtain,


=-\frac{2\times9+1}{9} +\frac{4\times3+1}{3}


We carry out the multiplication in the numerator to get,


=-\frac{18+1}{9} +\frac{12+1}{3}


We add in the numerator to get,

=-\frac{19}{9} +\frac{13}{3}

The least common denominator is 9.

=\frac{-19+13\times3}{9}


=\frac{-19+39}{9}

=\frac{20}{9}

We convert back to mixed numbers to get,

=2\frac{2}{9}









4 0
3 years ago
Find the value that completes the ordered pair to describe the transformation of f(x) to g (x).
shtirl [24]

Answer:

we know that if: (x, y) is a point of f(x):

This means that f(x) = y.

Then (x + 3, y + 1) is a point of g(x)

This means that:

g(x + 3) = y + 1

Then we have two shifts.

For a real and positive number A.

A horizontal shift of A units to the right can be written as:

f(x - A)

A vertical shift of A units up can be written as:

f(x) + A.

Then in this case we have:

An horiozontal shift of 3 units to the right, and a vertical shift of 1 unit up, this means that:

g(x') = f(x' - 3) + 1.

then evaluating this at x' = x + 3

g(x + 3) = f(x + 3 - 3) + 1 = f(x) + 1 = y + 1

That is what we had initially.

3 0
3 years ago
Which graph shows the solution to the inequality -3x-7x<20
hjlf
A graph of this inequality would be a number line, with the number -2 circled (not filled in), and the number line to the right of -2 shaded.

To solve this, you will combine like terms first:

-3x-7x < 20
-10x < 20

Divide both sides by -10:
-10x/-10 < 20/-10

When you divide an inequality by a negative number, you flip the inequality symbol:

x > -2
5 0
3 years ago
write the equation of the line that passes through the given points expressed in slope-intercept form. m=2/3, (-4,5)
solniwko [45]

Answer:

y = \frac{2}{3}x + \frac{23}{3}

Step-by-step explanation:

To write the equation of a line with a point and a slope, use the point-slope form of a linear equation. Substitute m = 2/3 and the point (-4,5) into the equation.

y - y_1 = m(x-x_1)\\y - 5 = \frac{2}{3}(x --4)\\y - 5 = \frac{2}{3}(x+4)

Convert to slope intercept form by using the distributive property.

y - 5 = \frac{2}{3}(x+4)\\y - 5 = \frac{2}{3}x +\frac{8}{3}\\y = \frac{2}{3}x + \frac{8}{3} + 5\\y = \frac{2}{3}x + \frac{23}{3}

7 0
3 years ago
Plz help!!!
jeka94

Answer:

Yes Billy is correct

Step-by-step explanation:

Think of a pizza in 4 peices on pizza had 1 clice taken out from 4 and one has 3 pieces have been taken away from 4. So therfore -3/4 is less.

8 0
3 years ago
Read 2 more answers
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