MATHEMATICS MIDDLE SCHOOL

Can someone simplify this please!! (3.1)⋅(10.75−3.55)

Answers

Answer 1

Answer:

Answer:

Simplification of the expression (3.1)⋅(10.75−3.55) is:

22.32

Step-by-step explanation:

We have to simplify:

(3.1)⋅(10.75−3.55)

(3.1)⋅(10.75−3.55)=(3.1)·(7.2)

=22.32

Hence, on simplifying the expression (3.1)⋅(10.75−3.55) , we get:

22.32

Answer 2

Answer: (3.1)*(10.75-3.55)=
(3.1)*(7.20)
=22.32 :)

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alis dog weighs 8 times as much as her cat. together, the two pets weigh 54 pynds. how much does Alis dog weigh?

Answers

The weight of the Alis dog is $\fbox{\bf48}$ pounds.

Further explanation:

Consider the weight of the Alis dog as $x$ poundsand weight of the cat as $y$ pounds.

Since, the weight of the Alis dog is 8 times the weight of the cat. It can be written as follows:

$x=8y$ ......(1)

Now, the total weight of the cat and dog are given as 54 pounds. It can be written as follows:

$x+y=54$ ......(2)

From equation (1), substitute $8y$ for $x$ in equation (2).

$\begin{aligned}8y+y&=54\n9y&=54\ny&=(54)/(9)\ny&=6\end{aligned}$

Thus, the weight of the cat is 6 pounds.

Substitute 6 for $y$ in equation (1) to obtain the weight of Alis dog as follows:

$\begin{aligned}x&=8(6)\n&=48\end{aligned}$

Thus, the weight of the Alis dog is 48 pounds.

Learn more:

1. Which function has an inverse that is also a function? {(–1, –2), (0, 4), (1, 3), (5, 14), (7, 4)} {(–1, 2), (0, 4), (1, 5), (5, 4), (7, 2)} {(–1, 3), (0, 4), (1, 14), (5, 6), (7, 2)} {(–1, 4), (0, 4), (1, 2), (5, 3), (7, 1)}

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2. A given line has the equation 10x + 2y = −2. what is the equation, in slope-intercept form, of the line that is parallel to the given line and passes through the point (0, 12)? y = ( )x + 12

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3. What are the domain and range of the function f(x) = 3x + 5?

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Answer Details :

Grade: Middle School .

Subject: Mathematics .

Chapter: linear equation.

Keywords:

lines, equation, pound, Alis dog, cat, weight, linear equation, zeros, x,y,x=8y,x+y=54, function, substitution, pets, direct substitution, elimination, graph, middle term factorization, fraction.

Simplify (1/6) to the second power